EP0021491A1 - Detergent containing nonionic/cationic surfactant and builder mixture - Google Patents

Detergent containing nonionic/cationic surfactant and builder mixture Download PDF

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Publication number
EP0021491A1
EP0021491A1 EP80200524A EP80200524A EP0021491A1 EP 0021491 A1 EP0021491 A1 EP 0021491A1 EP 80200524 A EP80200524 A EP 80200524A EP 80200524 A EP80200524 A EP 80200524A EP 0021491 A1 EP0021491 A1 EP 0021491A1
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Prior art keywords
group
alkyl
acid
mixtures
nonionic
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German (de)
French (fr)
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Victor Frank Rodriguez
Brandon Helmholz Wiers
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Procter and Gamble Co
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Procter and Gamble Co
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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/20Organic compounds containing oxygen
    • C11D3/2075Carboxylic acids-salts thereof
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/835Mixtures of non-ionic with cationic compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02Inorganic compounds ; Elemental compounds
    • C11D3/12Water-insoluble compounds
    • C11D3/124Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246Silicates, e.g. diatomaceous earth
    • C11D3/128Aluminium silicates, e.g. zeolites
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/26Organic compounds containing nitrogen
    • C11D3/33Amino carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16Organic compounds
    • C11D3/37Polymers
    • C11D3/3703Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3711Polyacetal carboxylates
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38Cationic compounds
    • C11D1/62Quaternary ammonium compounds
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66Non-ionic compounds
    • C11D1/72Ethers of polyoxyalkylene glycols

Definitions

  • This invention relates to detergent compositions containing a nonionic/cationic surfactant mixture and, as an improved builder mixture, a combination of aluminosilicate and polycarboxylate builder materials. These compositions deliver excellent particulate soil removal performance and greasy/oily soil removal benefits, along with fabric softening, static control, color fidelity and dye transfer inhibition benefits.
  • Compositions which utilize mixtures of selected nonionic and cationic surfactants, but without the particular builders described herein, are defined in European Patents No. 0000234., Cockrell, published January 10, 1979, No. 0000235, Murphy, published January 1 0, 1979, and No. 0004121, Murphy, published September 19, 1 979, all of which are incorporated herein by reference.
  • builder materials of improving detergency levels of soaps and synthetic detergents permit the attainment of better cleaning performance than is possible when so-called unbuilt compositions are used.
  • Such builders permit the attainment of better cleaning performance than is possible when so-called unbuilt compositions are used.
  • the behavior and mechanisms by which builders perform their function are only partially understood. It is known that good builders must be able to sequester most of the calcium and/or magnesium ions in the wash water since these ions are detrimental to the detergency process.
  • it is difficult to predict which compounds possess useful combinations of builder properties because of the complex nature of detergency and the countless factors which contribute both to overall performance results and the requirements of environmental acceptability.
  • STP sodium tripolyphosphate
  • Inorganic builders other than STP are generally not satisfactory for use as a builder in detergent formulations because of their poor builder properties.
  • Sodium aluminosilicates, commonly known as zeolites have been proposed for use in detergent formulations since they are able to soften water by removing calcium ions; but they are not very effective in removing magnesium ions from water.
  • new detergent compositions with cleaning properties superior or equivalent to phosphate-built detergents, but which do not contain phosphates, and which achieve environmental acceptability by being readily biodegradable.
  • new detergent compositions with a cationic/nonionic surfactant mixture and, as an improved builder mixture, a combination of aluminosilicate and polycarboxylate builder materials. These compositions provide cleaning performance superior to that of phosphate-built compositions and also provide other fabric care benefits, such as softening and static control.
  • the present invention encompasses a detergent composition, which contains from 0 to about 5% phosphate materials, comprising:
  • This invention comprises the discovery of an improved builder mixture for use in detergent compositions containing selected nonionic/cationic surfactant mixtures.
  • the builder mixture a combination of aluminosilicate and polycarboxylate builder materials, delivers excellent particulate soil removal performance and greasy/oily soil removal benefits. These compositions also provide fabric softening, static control, color fidelity and dye transfer inhibition benefits.
  • the detergent compositions are particularly good in 10-40°C water, especially when the particle size diameter of the aluminosilicate material is from about 0.5 to about 2 microns.
  • the essential elements in the detergent composition of this invention are: anonionic/cationic surfactant mixture, and a mixture of aluminosilicate and polycarboxylate builder materials.
  • nonionic:cationic surfactant ratios of from about 5:1 to about 20:1; while optimum removal of particulate soils is obtained with compositions having nonionic:cationic surfactant ratios of from about 2:1 to about 9:1, especially from about 3:1 to about 6.5:1, most especially from about 3.5:1 to about 5.5:1, with these ratios being particularly effective where the cationic surfactant used is of the di-long chain variety disclosed and claimed in European Patent Mo. 0004121, Murphy, published September 19, 1979, and incorporated herein by reference.
  • compositions of the present invention are preferably formulated so as to have a pH of at least about 7 in the laundry solution, at conventional usage concentrations, in order to optimize their overall cleaning performance, to aid in their manufacturing and processing, and to minimize the possibility of washing machine corrosion.
  • Alkalinity sources such as potassium hydroxide, potassium carbonate, potassium bicarbonate, sodium hydroxide, sodium carbonate, and sodium bicarbonate, may be included in the compositions for this purpose.
  • Some of the cationic/nonionic systems of the present invention may attain optimum removal of greasy/ oily soils at higher pHs, while attaining optimum particulate removal at relatively lower pHs. In these systems, overall performance may be enhanced by varying the pH of the wash solution during the laundering process.
  • compositions have a pH of at least about 8 in the laundry solution in order to optimize the removal of greasy/ oily and body soils.
  • these preferred compositions should also have the ability to maintain a pH in the laundry-solution of from about 8 to 11 throughout the washing operation (reserve alkalinity).
  • a reserve alkalinity may be obtained by incorporating compounds which buffer at pHs of from about 8 to 11, such as monoethanolamine, diethanolamine, and triethanolamine.
  • compositions of the present invention are also essentially free of oily hydrocarbon materials and solvents, such as mineral oil, paraffin oil and kerosene, since these materials, which are themselves oily by nature, load the washing liquor with excessive oily material, thereby diminishing the cleaning effectiveness of the compositions themselves.
  • Nonionic surfactants having HLBs of from about 5 to about 17, preferably from about 8.5 to about 14, more preferably from about 10 to about 13.5, which are conventionally used in detergent compositions, may be used in the compositions of the present invention.
  • Such surfactants include the condensation product of 1 mole of a saturated or unsaturated, straight or branched chain carboxylic acid having from about 10 to about 18 carbon atoms with from about 5 to about 50 moles of alkylene (particularly ethylene) oxide; the condensation product of 1 mole of saturated or unsaturated, straight or branched chain alcohol having from about 10 to about 24 carbon atoms with from about 5 to about 50 moles of alkylene (especially ethylene) oxide;.
  • polyethylene glycols having a molecular weight of from about 400 to about 30,000; and the condensation product of 1 mole of alkyl phenol wherein the alkyl chain contains from about 8 to about 18 carbon atoms with from about 4 to about 50 moles of alkylene (especially ethylene) oxide.
  • nonionic surfactants useful in the present invention is found in U.S. Patent 3,862,058, Nirschl and Gloss, issued January 21, 1975, incorporated herein by reference.
  • Preferred nonionic surfactants for use in the compositions of the present invention because of their excellent biodegradability and performance characteristics, have the formula R(OC 2 H 4 ) n OH, wherein R is a primary or secondary, straight or branched alkyl chain containing an average of from about 8 to about 22, preferably from about 10 to about 20, carbon atoms, and n is an average of from.about 2 to about 12, preferably from about 2 to about 9, especially from about 2 to about 7. Where di-long chain cationic materials are used in the compositions of the present invention, it is especially preferred that the R group in the nonionic surfactant contain from about 10 to about 16 carbon atoms.
  • the nonionic surfactants described herein have an HLB (hydrdphilic-lipophilic balance) of from about 5 to about 17, preferably from about 8.5 to about 14, and most preferably from about 10 to about 13.5.
  • HLB hydrophilic-lipophilic balance
  • a preferred class of surfactants utilizes alcohols which contain about 20% of 2-methyl branched isomers, and are commercially available under the trade name Neodol, from the Shell Chemical Company.
  • Particularly preferred nonionic surfactants for use in the compositions of the present invention include the condensation product of C 10 alcohol with 3 moles of ethylene oxide,.the condensation product of C 12-13 alcohol with about 3 moles of ethylene oxide, and the same product which is stripped to remove substantially all lower ethoxylate and nonethoxylated fractions, the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide, the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, the condensation product of C 12 alcohol with 5 moles of ethylene oxide, the condensation product of coconut alcohol with 5 moles of ethylene oxide, the condensation product of C 12-13 alcohol with 9 roles of ethylene oxide, the condensation product of C 14-15 alcohol with 3 moles of ethylene oxide, the condensation product of C 14-15 alcohol with 4 moles of ethylene oxide, the condensation product of C 14-15 alcohol with 9
  • catiohic surfactants used are of the di-long chain variety and that the nonionic surfactant be selected from the group consisting of the condensation product of C 14-15 alcohol with 2.25 moles of ethylene oxide, the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide, the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide, the con- densa tion product of C12-15 alcohol with 9 moles of ethylene oxide, the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, and the same product which is stripped so as to remove lower ethoxylate and nonethoxylated fractions, the condensation product of C9-11 alcohol with '8 moles of ethylene oxide, which is stripped so as to remove lower.ethoxylate and nonethoxylated fractions, the condensation product of coconut alcohol with 5 moles of ethylene oxide, the condensation product of coconut alcohol with 6 moles of ethylene oxide, the condensation product of tallow alcohol with 9 moles of ethylene
  • compositions of the present invention may contain mixtures of nonionic surfactants falling within the above preferred nonionic surfactant definition, such as a mixture of the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide with the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide, in a ratio of from about 4:1 to about 1:4.
  • the present invention may also contain mixtures of nonionic surfactants, some of which do not fall within the above preferred nonionic surfactant definition (such as alcohol ethoxylates having an average of greater than about 12 ethylene oxide groups per molecule), and in such mixtures it is preferred that at least one of the nonionic surfactants contained in the mixture falls within the above preferred nonionic surfactant definition and that this preferred nonionic surfactant (or mixture of surfactants) be included in an amount such that it falls within the nonionic/cationic ratio range required herein.
  • nonionic surfactant mixture contains a nonionic surfactant (or surfactants ⁇ which falls outside of the above preferred nonionic surfactant definition
  • the ratio of the surfactant (or surfactants) within the definition to those outside the definition be within the range of from about 1:1 to about 10:1.
  • preferred nonionic surfactant mixtures also contain alkyl glyceryl ethers.
  • Particularly preferred are glyceryl ethers having the formulae: wherein R is an alkyl or alkenyl group of from about 8 to about 18, preferably from about 8 to 12, carbon atoms or an alkaryl group having from about 5 to 14 carbon atoms in the alkyl chain, and n is from 1 to about 6.
  • R is an alkyl or alkenyl group of from about 8 to about 18, preferably from about 8 to 12, carbon atoms or an alkaryl group having from about 5 to 14 carbon atoms in the alkyl chain
  • n is from 1 to about 6.
  • These compounds may be used together with the nonionic surfactant component of the present invention, in a ratio of nonionic surfactant to glyceryl ether of from about 1:1 to about 4:1, particularly about 7:3.
  • Glyceryl ethers of the type useful in the present invention are disclosed in U.S. Patent 4,098,713,
  • nonionic surfactants useful herein comprises a mixture of "surfactant” and "co-sur- factant", containing at least one nonionic surfactant falling within the definition of the nonionic surfactants preferred herein, as described in British Patent No. 1.462.134, Collins, published on January 19, 1977, the-disclosure of which is incorporated herein by reference.
  • each R 1 is an organic group containing a straight or branched alkyl or alkenyl group optionally substituted with up to three phenyl or hydroxyl groups, and optionally interrupted by up to four structures selected from the group consisting of: and mixtures thereof, and which contains from about 8 to 22 carbon atoms, and which may additionally contain up to 2 0 ethylene oxide groups, and m is a number from 1 to 3.
  • R 2 is an alkyl or hydroxy alkyl group containing from 1 to 4 carbon: atoms, or a benzyl group with no more than one R in a molecule being benzyl, and x is a number from 0 to 11, preferably from 0 to 6. The remainder of any carbon positions on the Y group are filled by hydrogens.
  • Y is selected from the group consisting of: wherein p is from 1 to 12, wherein each p is from 1 to 12, wherein each p is from 1 to 12, and
  • L is 1 or 2, with the Y groups being separated by a moiety selected from the group consisting of R and R 2 analogs (preferably alkylene or alkenylene) having from one to about twenty-two carbon atoms and 2 free carbon single bonds when L is 2.
  • Z is a water-soluble anion such as halide, methyl sulfate, sulfate, or nitrate anion, particularly preferred anions being chloride, bromide, iodide, sulfate, or methyl sulfate, in a number to give electrical neutrality of the cationic component.
  • the particular cationic component to be included in a given system depends to a large extent upon the particular nonionic component to be used; it is selected such that it is at least water-dispersible when mixed with the nonionic surfactant.
  • the cationic surfactant is chosen, in light of the particular nonionic surfactant used, in order to satisfy the cloud point requirements of the detergent composition, discussed below. Mixtures of these cationic materials may also be used in the compositions of the present .invention.
  • Preferred cationic surfactants are those having critical micelle concentrations of less than about 500 ppm, especially less than about 100 ppm.
  • L is equal to 1
  • p is from 1 to 12, preferably from 1 to 10
  • Y is or mixtures thereof.
  • L may be equal to two, thereby yielding cationic components containing two cationic charge centers.
  • An example of a di-cationic component is given below:
  • Other cationic materials which are useful in the compositions of the present invention include phosphonium and sulfonium materials.
  • a particularly preferred type of cationic component which is described in Japan Patent No. 79-39413, L etton, published March 26, 1979, incorporated herein by reference, has the formula wherein R 1 is C 1 to C 4 alkyl or hydroxyalkyl; R 2 is C 5 to C 30 straight or branched chain alkyl, alkenyl, alkylbenzyl or alkyl phenyl, or wherein s is from 0 to 5; R 3 is C 1 to C 20 alkylene or alkenylene; a is 0 or 1, n is 0 or 1, and n is 1 when a is 1; m is from 1 to 5; Z and Z are each selected from the group consisting of and wherein at least one of said Z 1 or Z 2 groups is and X is an anion which makes the compound at least water-dispersible, preferably selected from the group consisting of halide, methyl sulfate, sulfate, and nitrate, more preferably chloride, bromide,
  • the preferred choline-derivative cationic substances may be prepared by the direct esterification of a fatty acid of the desired chain length with dimethylaminoethanol, in the presence of an acid catalyst. The reaction product is then quaternized with a methyl halide, forming the desired cationic material.
  • the choline- derived cationic materials may also be prepared by the direct esterification of a long chain fatty acid of the desired chain length together with 2-haloethanol, in the presence of an acid catalyst material. The reaction product is then used to quaternize trimethylamine, forming the desired cationic component.
  • each R 1 is a C 1 to C 4 alkyl or hydroxyalkyl group, preferably a methyl group.
  • Each R 2 is either hydrogen or C 1 to C 3 alkyl, preferably hydrogen.
  • R 3 is a C 4 to C 30 straight or branched chain alkyl or alkenyl, preferably a C 8 to C 18 alkyl group, most preferably a C 12 alkyl group.
  • R 4 - is-a C 1 to C 10 alkylene or alkenylene. group.
  • n is from 2 to 4, preferably 2; y is from 1 to 20, .
  • Z 2 is selected from the group consisting of and at least one of Z 1 and Z 2 groups is selected from the group consisting of X is an anion which makes the compound at least water dispersible, and is selected from the group consisting of halides, methyl sulfate, sulfate, and nitrate, particularly chloride, bromide iodide, methyl sulfate and sulfate.. Mixtures of the above structures can also be used.
  • Cationic surfactants of this type are disclosed in European Patent No. 0004121, Murphy, pubhshed September 19, 1 979, incorporated herein by reference.
  • Preferred cationic surfactants are those having the formulae: wherein the R 1 and R 2 groups contain an average of from about 16 to about 22 carbon atoms, preferably is alkyl groups, and-most preferably contain an average of from about 16 to about 18 carbon atoms,.
  • R 3 and R 4 are C 1 to C 4 alkyl or hydroxyalkyl groups, and X is any compatible anion, particularly one selected from the group consisting of halide, hydroxide, methyl sulfate, or acetate anions.
  • Preferred cationic surfactants include ditallowalkyl- dimethyl (or diethyl or dihydroxyethyl) ammonium chloride, ditallowalkyldimethylammonium methyl sulfate, dihexadecylalkyl (C 16 ) (also known as distearyl), dimethyl (or diethyl, or dihydroxyethyl) ammonium chloride, dioctadecylalkyl (C 18 ) dimethylammonium chloride, dieicosylalkyl (C 20 ) dimethylammonium chloride, methyl-(l)-tallowalkylamiao ethyl (2) tallowalkylimidazolinium methyl sulfate (commercially available as Varisoft 475 from Ashland Chemical Company), or mixtures of those surfactants.
  • Particularly preferred cationic surfactants are ditallowalkyldimethylammonium chloride, ditallowalkyldimethylammonium methyl sulfate, methyl(1)tallowalkylamidoethyl(2)tallowalkylimidazolinium methyl sulfate, and mixtures of those surfactants, with ditallowalkyldimethylammonium chloride being especially preferred.
  • Another particularly useful class of cationic surfactant is that in which the two long chains of the cationic surfactant contain a significant amount of unsaturation, such as where at least about 20%, preferably at least about 30%, of the long chains contain at least one double bond.
  • Compounds of this type have the formula wherein R 1 and R2 contain an average of from about 16 to about 22 (most preferably from about 16 to about 18) carbon atoms, and at least about 20% of these chains contain at : least one double bond; R 3 and R 4 are C 1 to C 4 alkyl or hydroxyalkyl groups, and X is any compatible anion, particularly one selected from the group consisting of halide, hydroxide, methyl sulfate, or acetate anions.
  • a preferred cationic surfactant is di-partially hydrogenated tallow dimethylammonium halide (especially chloride or methyl sulfate), which is also known as disoftened- tallowalkyldimethylammonium halide.
  • a commercially available compound of this type is Adogen 470, sold by Ashland Chemical Company, wherein about 30% of the tallow chains are oleyl in character.
  • Compositions made with these cationics showed several significant advantages over those made with more conventional cationics (such ditallowalkyldimethylammonium chloride), particularly those compositions show improved particulate soil removal, especially at low wash temperatures, improved static control, and remain in a stable single phase at temperatures down to about 40°F.
  • compositions of the present invention may be formulated using the guidance provided by the reduced monomer concentration of the cationic component (CR) in the laundry solution. Specifically, the selection of a C R value for a given nonionic and cationic surfactant-pair will determine the ratio in which to combine those surfactants. A given nonionic/cationic surfactant pair will give its best particulate or grease/oil removal' performance when it is formulated to have a C R value which falls within-the ranges defined herein.
  • the reduced monomer concentration of a surfactant is obtained by dividing the'concentration of the surfactant monomer present in the laundry solution by the critical micelle concentration (CMC) of that surfactant. As used in this application, CMCs are determined at 105°F in water containing 7 grains/gallon of mixed ( 2:1 ; Ca:M g) hardness, unless otherwise stated.
  • the C R value of the nonionic/cationic surfactant mixture be in the range of from about 0.002 to about 0.2, especially from about 0.002 to about 0.15, most preferably from about 0.002 to about 0.08.
  • the nonionic/cationic surfactant mixture have a C R of from 0.005 to about 0.2, especially from about 0.008 to about 0.15, most preferably from about 0.01 to about 0.1. It is in the area of overlap (i.e., C R equals about 0.005 to about 0.2) of these C R ranges that the compositions of the present invention yield both optimum particulate and greasy/oily soil removal.
  • compositions which give the best performance on greasy/oily soils also satisfy specific cloud point requirements, given below, and detailed in European Patent No. 0000235, Murphy,, published January 10, 1979, incorporated herein by reference.
  • these preferred compositions have nonionic/cationic mixtures which exhibit a cloud point between about 10°C and 70°C, more preferably between about 20°C and 70°C, especially between about 30°C and about 50°C.
  • the compositions will exhibit their best grease/oil,removal performance when the temperature of the wash solution in which they are used falls within about 20°C, preferably within about 15°C, and most preferably within about 10°C, of the cloud point of the nonionic/ cationic surfactant mixture..
  • cloud point means the temperature at which a graph plotting the light scattering intensity of the composition versus wash solution temperature begins to sharply increase to its maximum value, under the following experimental conditions:
  • the detergent compositions herein contain from about 5% to about 99%, preferably from about 20% to about 60%, by weight of-a detergency builder mixture.
  • the builder mixture consists essentially of:
  • the weight ratio of the aluminosilicate material to the polycarboxylate-material is from about 1:4 to about 4:1, more preferably from about 1:3 to about 2:1.
  • the aluminosilicate materials for use herein are those commonly known as Zeolites A, X, and P(B).
  • the zeolites should contain at least 10% water of hydration and should have a particle size diameter of from about 0.01 microns to about 25 microns, preferably from about 0.1 microns to about 10 microns, more preferably from about 0.5 microns to about 2 microns.
  • Aluminosilicate materials are more fully described in U.S. Patent 4,096,081, Phenicie.et al, issued June 20, 1978, and German Patent No.27 04 003, Ohren, published on August 18, 1 977, the disclosures of which are incorporated herein by reference.
  • amorphous aluminosilicate materials suitable for use herein are fully described in U.S. Patent Application No. 4.180 485, Llenado, published December 25, 1979 ., incorporated herein by reference-Examples of suitable polycarboxylate builder materials for use herein are (1) water-soluble aminopolycarboxylates, e.g., sodium and potassium ethylenediaminetetraacetates, (2) the water-soluble salts of phytic acid, e.g., sodium and potassium phytates, disclosed in U.S. Patent No. 2,739,942, Eckey, issued March 27, 1956, incorporated herein by reference; (3) the polycarboxylate materials described in U.S. Patent 3,364,103; and (4) water-soluble salts of polycarboxylate polymers and copolymers as described in U.S. Patent No. 3,308,067, Diehl, issued March 7, 1967, incorporated herein by reference.
  • a useful detergent builder which may be employed in the present invention comprises a water-soluble salt of a polymeric aliphatic polycarboxylic acid having the following structural relationships as to the position of the carboxylate groups and possessing the following prescribed physical characteristics: (a) a minimum molecular weight of about 350 calculated as to the acid form; (b) an equivalent weight of about 50 to about 80 calculated as to acid form; (c) at least 45 mole percent of the monomeric species having at least two carboxyl radicals separated from each other by not more than two carbon atoms; (d) the site of attachment of the polymer chain of any carboxyl-containing radical being separated by not more than three carbon atoms along the polymer chain .from the site of attachment of the next carboxyl-containing radical.
  • Specific examples of the above-described builders include polymers of itaconic acid, aconitic acid, maleic acid, mesaconic acid, fumaric acid, methylene malonic acid and citraconic acid and copolymers with themselves.
  • polyacetal carboxylates can be prepared by bringing together under polymerization conditions an ester of glyoxylic acid and a polymerization initiator. The resulting polyacetal carboxylate ester is then attached to chemically stable end groups to stabilize the polyacetal carboxylate against rapid depolymerization in alkaline solution, converted to the corresponding salt, and added to a surfactant.
  • European Patent No 80200102.4, Rodriguez et al.,filed-on'February 7, 1980, incorporated herein by reference discloses a builder system containing these polyacetal carboxylates along with aluminosilicate builder materials, for use in detergent compositions, which preferably contain nonionic/cationic surfactants.
  • Preferred polycarboxylate builders for use in the ' present invention are sodium or potassium nitrilotriacetate or citrate, or mixtures thereof.
  • the compositions of this invention contain from 0 to about 5% phosphate materials, and are preferably substantially free of phosphate materials.
  • the detergent compositions additionally contain from about 2 to about 25%, preferably from about 2 to about 16%, and most preferably from about 2 to about 10% of a fatty amide surfactant, such as ammonia amides (e.g., coconutalkyl ammonia amide, diethanol amides, and ethoxylated amides).
  • a fatty amide surfactant such as ammonia amides (e.g., coconutalkyl ammonia amide, diethanol amides, and ethoxylated amides).
  • ammonia amides e.g., coconutalkyl ammonia amide, diethanol amides, and ethoxylated amides.
  • the ratio of the cationic/ nonionic mixture to the amide component in the composition is in the 'range of from about 5:1 to about 50:1, preferably from about 8:1 to about 25:1.
  • the addition of the amide component is in the 'range of from about 5:1 to about 50:
  • amides are C 8 -C 20 monoethanol amides, C 8 -C 20 diethanol amides, and amides having the formula wherein R is a C 8 -C 20 alkyl group, and mixtures thereof.
  • Particularly preferred amides are those where the alkyl group contains from about 10 to about 16 carbon atoms, such as coconut alkyl monoethanol or diethanol amide.
  • Such compounds are commercially available under the tradenames Superamide GR, from Onyx Chemical Co., Jersey City, N.J., Superamide F-3 from Ryco, Inc., Conshohocken, Pa., and Gafamide CDD-518, available from GAF Corp., New York, N.Y.
  • These amide components may also be added in small amounts, i.e., from about 2% to about 5%, to act as suds modifiers. Specifically, they tend to boost the sudsing in an active system which exhibits relatively low sudsing, and depress the sudsing in.an active system which exhibits. relatively high sudsing.
  • compositions of the present invention may also contain additional ingredients generally found in laundry detergent compositions, at their conventional art-established levels, as long as these ingredients are compatible with the nonionic and cationic components required herein.
  • the compositions may contain up to about 15%, preferably up to about 5%, and most preferably from about 0.001 to about 2%, of a suds suppressor component.
  • Typical suds suppressors useful in the compositions of the present invention include, but are not limited to, those described below.
  • silicone-type suds suppressing additives are described in U.S. Patent 3,933,672, issued January 20, 1976, Bartolotta et al., incorporated herein by reference.
  • the silicone material can be represented by alkylated polysiloxane materials such as silica aerogels and xerogels and hydrophobic silicas of various types.
  • the silicone material can be described as a siloxane having the formula: wherein x is from about 20 to about 2,000, and R and R' are each alkyl or aryl groups, especially methyl, ethyl, propyl, butyl and phenyl.
  • Polydimethylsiloxanes (R and R' are methyl, having a molecular weight within the range of from about 200 to about 200,000, and higher, are all useful as suds controlling agents.
  • Additional suitable silicone materials wherein the side chain groups R and R' are alkyl, aryl, or mixed alkyl and aryl hydrocarbyl groups exhibit useful suds controlling properties. Examples of such. ingredients include diethyl-, dipropyl-, dibutyl-, methylethyl-, phenylmethyl-polysiloxanes and the like.
  • Additional useful silicone suds controlling agents can be represented by a mixture of an alkylated siloxane, as referred_to hereinbefore, and solid silica.
  • a preferred silicone suds controlling agent is represented by a hydrophobic silanated (most preferably trimethyl- silanated) silica having a particle size in the range from about 10 millimicrons to 20 millimicrons and a specific surface area above about 50 m 2 /gm intimately admixed with dimethyl silicone fluid having a molecular weight in the range from about 500 to about 200,000 at a weight ratio of silicone to silanated silica of from about 19:1 to about 1:2.
  • the silicone suds suppressing agent is advantageously releasably incorporated in a water-soluble or water-dispersible, substantially non-surface-active, detergent- impermeable carrier..
  • Particularly useful suds suppressors are the self- emulsifying silicone suds suppressors, described in U.S. Patent 4,075,118, Gault et al, issued February 21, 1978, incorporated herein by reference.
  • An example of such a compound is DB-544, commercially available from Dow Corning, which contains a siloxane/glycol copolymer together with solid silica and a siloxane resin.
  • Microcrystalline waxes having a melting point in the range from 35°C-115°C and a saponification value of less than 100 represent additional examples of a preferred suds regulating component for use in the subject compositions, and are described in detail in U.S. Patent 4,056,481, Tate, issued November 1, 1977, incorporated herein by reference.
  • the microcrystalline waxes are substantially water-insoluble, but are water-dispersible in the presence of organic surfactants.
  • Preferred ⁇ microcrystalline waxes have a melting point from about 65°C to 100°C, a molecular weight in the range from 400-1,000; and a penetration value of at least 6, measured at 77°F by ASTM-D1321.
  • Alkyl phosphate esters represent an additional preferred suds suppressant for use herein. These preferred phosphate esters are predominantly monostearyl phosphate which, in addition thereto, can contain di- and tristearyl phosphates and mono-oleyl phosphates, which can contain di-and trioleyl phosphates.
  • alkyl phosphate esters frequently contain some trialkyl phosphate. Accordingly, a preferred phosphate ester can contain, in addition to the monoalkyl ester, e.g. monostearyl phosphate, up to about 50 mole percent of dialkyl phosphate and up to about 5 mole percent of trialkyl phosphate.
  • adjunct components which may be included in the compositions of the present invention, in their conventional art-established levels for use (i.e., from about 0 to about 40%), include semi-polar nonionic (such as amine oxides), anionic, zwitterionic and ampholytic cosurfactants; detergency builders; bleaching agents; bleach activators; soil release agents (particularly copolymers of ethylene terephthalate and polyethylene oxide terephthalate, such as Milease T sold by ICI, United States, as disclosed in U.S.
  • semi-polar nonionic such as amine oxides
  • anionic, zwitterionic and ampholytic cosurfactants such as amine oxides
  • detergency builders such as amine oxides
  • bleaching agents such as amine oxides
  • bleach activators such as Milease T sold by ICI, United States, as disclosed in U.S.
  • Patent 4,132,680 Nicol, issued January 2, 1979, incorporated herein.by reference
  • soil suspending agents corrosion inhibitors; dyes; fillers; optical brighteners; germicides; pH adjusting agents; alkalinity sources; hydrotropes; enzymes; enzyme-stabilizing agents; perfumes; solvents; carriers; suds modifiers; opacifiers; and the like.
  • certain conventional components such as cosurfactants and other detergency builders, as well as fabric softening and static control. agents, will not generally be necessary in a particular formulation,. giving the compositions of the present invention a potential cost advantage over conventional detergent/ softener compositions..
  • compositions of the present invention give such outstanding clay removal performance across the range of water hardness conditions, for environmental reasons the compositions of the present invention contain less than about 5% phosphate materials.
  • Preferred compositions are substantially or totally free of such phosphate materials., without decreasing the performance of the compositions- Preferred compositions of the present invention are also substantially free of carboxymethylcellulose in order to optimize the clay removal performance of the system.
  • compositions of the present invention may contain anionic materials, such as anionic surfactants and hydrotropes (e.g., alkali metal toluene sulfonates), it is preferred that particular anionic materials be contained in amounts sufficiently small such that not more than about 10%, preferably not more than about 5%, of the cationic surfactant, contained in the laundry solution, is complexed by the anionic material. Such a compleaxing of the anionic material with the cationic surfactant, decreases the overall cleaning and fabric conditioning performance of the composition. Suitable anionic materials may be selected based on their strength of complexation with the cationic material included in the composition (as indicated by their dissociation constant).
  • an anionic material when it has a dissociation constant of at least about 1 x 10 -3 (such as sodium toluene.sulfonate), it may be contained in an amount up to about 40%, by weight, of the cationic surfactant; where the anionic material has a dissociation constant of at least about 1 x 10 -5 , but less than about 1 x 10 3, it may be contained in an amount up to about 15%, by weight, of the cationic surfactant; and where the anionic material has a dissociation constant of less than about 1 x 10 -5 (such as sodium C 11.8 linear alkylbenzene sulfonate), it may be contained only in amounts up to about 10%, by weight, of the cationic surfactant.
  • Preferred compositions are substantially free of such anionic materials.
  • cosurfactants and detergency builders which may be used in the compositions of the present invention are found in U.S. Patent No. 3,717,630, Booth, issued February 20, 1973, and European Patent No. 0000235, Murthy, published Uantiary 10, 1979, both of which are incorporated herein by reference.
  • these components, particularly the anionic surfactants should be checked with the particular nonionic/cationic surfactant system chosen, and used in an amount, so as to be certain that they will be compatible with the nonionic/cationic surfactant system.
  • compositions of the present invention may be produced in a variety of forms, including liquid, solid, granular, paste, powder or substrate compositions.
  • Preferred substrate articles may be formulated according to U.S. Patent No. 41170.565, Murphy, -published on October 9, 1979, incorporated herein by reference.
  • the compositions of the present invention are formulated as liquids and contain up to about 20% of a lower alkyl (C l to C4) alcohol, particularly ethanol. Liquid compositions containing lower levels of such alcohols (i.e., about 7 to 12%) tend to exhibit less phase separation than compositions containing higher alcohol levels.
  • Granular compositions herein may also contain up to about 15% by weight of alkali metal silicates, especially sodium silicate (2.0 ratio), to increase flowability and physical stability of the granules.
  • compositions of the present invention are used in the laundering process by forming an aqueous solution containing.from about 0.01 (100 parts per million) to about 0.3% (3,000 parts per million), preferably from about 0.02 to about 0.2%, and most preferably from about 0.03 to about 0.15%, of the detergent compositions defined herein, and agitating the soiled fabrics in that solution. The fabrics are then rinsed and dried.
  • the compositions of the present invention yield outstanding particulate and greasy/oily soil removal, together with fabric softening, static control; color fidelity, and dye transfer inhibition benefits, without requiring the use of any of the other conventionally used fabric softening and static control laundry additives.
  • Identical clay-soiled cotton, polyester/cotton, and polyester swatches were washed in aqueous solutions having dissolved therein: 500 parts per million (ppm) of a surfactant mixture containing 4.5 parts of the nonionic surfactant C 12-13 E 6.5 (condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, commercially available as Neodol 23-6.5 from Shell Chemical Company) and 1 part of the cationic surfactant(dihydrogenated tallowalkyl dimethylammonium chloride); 600 ppm of the builder or builder mixture listed below; and 87 ppm of monoethanol amine.
  • ppm 500 parts per million (ppm) of a surfactant mixture containing 4.5 parts of the nonionic surfactant C 12-13 E 6.5 (condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, commercially available as Neodol 23-6.5 from Shell Chemical Company) and 1 part of the cationic surfactant(d
  • the swatches were washed for 10 minutes in a miniature agitator containing 1-1/2 gallons of washing liquor at 100°F and artificial water hardness (2 moles Ca ++ to 1 mole Mg ++ ) at levels of 2, 7 and 12 grains per gallon.
  • the swatches comprised approximately 4% by weight of the washing liquor.
  • the swatches were spun dry and rinsed with 1-1/2 gallons of water, at 100°F, having the same water hardness as that of the water they were washed in.
  • the swatches were then dried in a miniature electric dryer.
  • a Hunter Reflectometer was used to obtain a reflectance reading (in Hunter Whiteness Units) for each of the laundered swatches. A higher reflectance reading indicates greater cleaning effectiveness.
  • the results were as follows:
  • nonionic surfactant in Composition A is replaced, in whole or in part, by the condensation product of C 14-15 alcohol with 2.25 moles of ethylene oxide; the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide; the- condensation product of C 12-15 alcohol with 9 moles of ethylene oxide; the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, which is stripped so as to remove lower ethoxylate and nonethoxylated fractions; the condensation product of coconut alcohol with 5 moles of ethylene oxide; the condensation product of coconut alcohol with 6 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide; the condensation product of tallow alcohol with 9 moles of ethylene oxide; a 1:1 by weight mixture of the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide and the condensation product of C14-15 alcohol with 7 moles of ethylene oxide; and other mixtures of those surfactants.
  • the weight ratio of the aluminosilicate material to the polycarboxylate material is from about. 1:10 to about 10:1, especially when from about 1:4 to about 4:1.
  • the cleaning advantages are most readily apparent at high water hardness levels, such as above 7 grains/gallon.
  • aluminosilicate material is any hydrated Zeolite A, X or P(B), having a particle size diameter of from about 0.01 microns to about 25 microns, especially from about 0.1 microns to about 10 microns.
  • Substantially similar cleaning performance is obtained when the number of segments (n) in the polyacetal carboxylate builder averages at least 4, but especially when n averages between 10 and 200.
  • composition delivered excellent particulate soil removal performance, as demonstrated in Example I. Further, the composition provided greasy/oily soil removal benefits.
  • the following detergent composition was produced: : 1 Condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, commercially available as Neodol 23-6.5 from Shell Chemical Company.
  • composition delivered excellent particulate soil removal performance, as demonstrated in Example I. Further, the composition provided greasy/oily soil removal benefits.

Abstract

escribed are detergent compositions containing a nonionic/cationic surfactant mixture and. as an improved builder mixture, a combination of aluminosilicate and polycarboxylate builder materials. These compositions contain little or no phosphate materials, yet deliver excellent particulate soil removal performance and greasy/oily soil removal benefits, along with fabric softening, static control and other fabric care benefits.

Description

    Technical Field
  • This invention relates to detergent compositions containing a nonionic/cationic surfactant mixture and, as an improved builder mixture, a combination of aluminosilicate and polycarboxylate builder materials. These compositions deliver excellent particulate soil removal performance and greasy/oily soil removal benefits, along with fabric softening, static control, color fidelity and dye transfer inhibition benefits. Compositions which utilize mixtures of selected nonionic and cationic surfactants, but without the particular builders described herein, are defined in European Patents No. 0000234., Cockrell, published January 10, 1979, No. 0000235, Murphy, published January 10, 1979, and No. 0004121, Murphy, published September 19, 1979, all of which are incorporated herein by reference.
  • Background Art
  • The property possessed by builder materials of improving detergency levels of soaps and synthetic detergents is known. Such builders permit the attainment of better cleaning performance than is possible when so-called unbuilt compositions are used. However, the behavior and mechanisms by which builders perform their function are only partially understood. It is known that good builders must be able to sequester most of the calcium and/or magnesium ions in the wash water since these ions are detrimental to the detergency process. However, it is difficult to predict which compounds possess useful combinations of builder properties because of the complex nature of detergency and the countless factors which contribute both to overall performance results and the requirements of environmental acceptability.
  • Sodium tripolyphosphate (STP) has been found to be a highly efficient cleaning and. detergent builder and this compound has been widely used for decades in cleaning and detergent formulations. However, because of the recent emphasis on removing phosphates from detergent and cleaning compositions, suitable replacements for phosphate builders, which would deliver effective cleaning performance and be environmentally acceptable, are being sought. Inorganic builders other than STP are generally not satisfactory for use as a builder in detergent formulations because of their poor builder properties. Sodium aluminosilicates, commonly known as zeolites, have been proposed for use in detergent formulations since they are able to soften water by removing calcium ions; but they are not very effective in removing magnesium ions from water.
  • It has also recently been taught that by combining specific types of cationic surfactants with a narrowly defined range of alcohol ethoxylate type nonionic surfactants, within defined nonionic:cationic ratios, simple, unbuilt detergent compositions which deliver good cleaning performance and fabric care benefits, can be formulated. (see e.g. European Patents No. 0000234, Murphy; No. 0000235, Cockrell; and No. 0004121, Murphy - all of which have been incorporated herein by reference.) These unbuilt detergent compositions, although generally.equivalent to fully built phosphate compositions known in the art, still are capable of further improvement.
  • Thus, it can be seen that there is a need for new detergent compositions with cleaning properties superior or equivalent to phosphate-built detergents, but which do not contain phosphates, and which achieve environmental acceptability by being readily biodegradable. Now, according to the present invention, there is provided new detergent compositions with a cationic/nonionic surfactant mixture and, as an improved builder mixture, a combination of aluminosilicate and polycarboxylate builder materials. These compositions provide cleaning performance superior to that of phosphate-built compositions and also provide other fabric care benefits, such as softening and static control.
  • Summary of the Invention
  • The present invention encompasses a detergent composition, which contains from 0 to about 5% phosphate materials, comprising:
    • (a) from about 1% to about 95% of a surfactant mixture consisting essentially of:
      • (i) a nonionic surfactant having an HLB of from about 5 to about 17; and
      • (ii) a cationic surfactant, having the formula
        Figure imgb0001
        wherein each R1 is an organic group containing a straight or branched alkyl or alkenyl group optionally substituted with up to 3 phenyl or hydroxy groups and optionally interrupted by up to 4 structures selected from the group consisting of
        Figure imgb0002
        Figure imgb0003
        and mixtures thereof, each R1 containing from about 8 to about 22 carbon atoms, and which may additionally contain up to about 20 ethylene oxide groups; m is a number from 1 to 3; each R2 is an alkyl or hydroxy alkyl group containing from 1 to 4 carbon atoms or a benzyl group, with no more than one R 2 in a molecule being benzyl; x is from 0 to 11, the remainder of any carbon atom positions being filled by hydrogens; Y is selected from the group consisting of
        Figure imgb0004
        Figure imgb0005
        Figure imgb0006
        Figure imgb0007
        Figure imgb0008
        wherein p is from 1 to 12,
        Figure imgb0009
        wherein each p is from 1 to 12,
        Figure imgb0010
        wherein each p is from 1 to 12,
        Figure imgb0011
        Figure imgb0012
        and (10) mixtures thereof; L is 1 or 2, the Y groups being separated by a moiety selected from the group consisting of R1 and R 2 analogs having from one to about twenty-two carbon atoms and 2 free carbon single bonds when L is 2; Z is an anion in a number sufficient to give electrical neutrality to the molecule; said cationic surfactant being at least water-dispersible in admixture with said nonionic sufactant; wherein the ratio of said nonionic surfactant to said cationic surfactant is from about 1:1 to about 100:1; and
      • (b) from about 5% to about 99% of a detergency builder mixture consisting essentially of:
        • (i) a water-insoluble aluminosilicate material selected from the group consisting of:
          • (1) Zeolites A, X, or P(B), or mixtures thereof, having a particle size diameter of from about 0.01 microns to about 25 microns and containing at least 10% water of hydration;
          • (2) amorphous hydrated aluminosilicate material of the empirical formula: Mz (zAlO2 ySiO2) wherein M is sodium, potassium, ammonium, z is from about 0.5 to about 2, y is 1, said material having a particle size diameter of less than about 100 microns, a magnesium ion exchange capacity of at least about 50 milligrams equivalents of CaCO3 hardness per gram of anhydrous aluminosilicate, and a Mg++ exchange rate of at least about 1 grain/gallon/minute/gram/gallon; and
          • (3) mixtures thereof; and
        • (ii) a polycarboxylate builder material;

        - wherein the weight ratio of the aluminosilicate material to the polycarboxylate material is from about 1:10 to about 10:1.
    Disclosure of the Invention
  • This invention comprises the discovery of an improved builder mixture for use in detergent compositions containing selected nonionic/cationic surfactant mixtures. The builder mixture, a combination of aluminosilicate and polycarboxylate builder materials, delivers excellent particulate soil removal performance and greasy/oily soil removal benefits. These compositions also provide fabric softening, static control, color fidelity and dye transfer inhibition benefits. The detergent compositions are particularly good in 10-40°C water, especially when the particle size diameter of the aluminosilicate material is from about 0.5 to about 2 microns.
  • The essential elements in the detergent composition of this invention are: anonionic/cationic surfactant mixture, and a mixture of aluminosilicate and polycarboxylate builder materials.
  • Surfactant Mixture
  • The compositions of the present invention comprise, by weight, from about 1 to about 95%, preferably from about 15 to about 60%, and most preferably from about 20 to about 50%, of a.mixture of particularly defined nonionic and cationic surfactants, defined hereinafter, within ratios of nonionic to cationic surfactant of from about 1:1 to about 100:1, preferably from about 1:1 to about 50:1, and more preferably from about 3:1 to about 40:1. Optimum removal of greasy/oily soils is generally obtained with nonionic:cationic surfactant ratios of from about 5:1 to about 20:1; while optimum removal of particulate soils is obtained with compositions having nonionic:cationic surfactant ratios of from about 2:1 to about 9:1, especially from about 3:1 to about 6.5:1, most especially from about 3.5:1 to about 5.5:1, with these ratios being particularly effective where the cationic surfactant used is of the di-long chain variety disclosed and claimed in European Patent Mo. 0004121, Murphy, published September 19, 1979, and incorporated herein by reference.
  • The compositions of the present invention are preferably formulated so as to have a pH of at least about 7 in the laundry solution, at conventional usage concentrations, in order to optimize their overall cleaning performance, to aid in their manufacturing and processing, and to minimize the possibility of washing machine corrosion. Alkalinity sources, such as potassium hydroxide, potassium carbonate, potassium bicarbonate, sodium hydroxide, sodium carbonate, and sodium bicarbonate, may be included in the compositions for this purpose. Some of the cationic/nonionic systems of the present invention may attain optimum removal of greasy/ oily soils at higher pHs, while attaining optimum particulate removal at relatively lower pHs. In these systems, overall performance may be enhanced by varying the pH of the wash solution during the laundering process. Particularly preferred compositions have a pH of at least about 8 in the laundry solution in order to optimize the removal of greasy/ oily and body soils. In addition to the higher pH in the laundry solution, these preferred compositions should also have the ability to maintain a pH in the laundry-solution of from about 8 to 11 throughout the washing operation (reserve alkalinity). Such a reserve alkalinity may be obtained by incorporating compounds which buffer at pHs of from about 8 to 11, such as monoethanolamine, diethanolamine, and triethanolamine.
  • Preferred compositions of the present invention are also essentially free of oily hydrocarbon materials and solvents, such as mineral oil, paraffin oil and kerosene, since these materials, which are themselves oily by nature, load the washing liquor with excessive oily material, thereby diminishing the cleaning effectiveness of the compositions themselves..
  • Nonionic Component
  • Nonionic surfactants, having HLBs of from about 5 to about 17, preferably from about 8.5 to about 14, more preferably from about 10 to about 13.5, which are conventionally used in detergent compositions, may be used in the compositions of the present invention. Such surfactants include the condensation product of 1 mole of a saturated or unsaturated, straight or branched chain carboxylic acid having from about 10 to about 18 carbon atoms with from about 5 to about 50 moles of alkylene (particularly ethylene) oxide; the condensation product of 1 mole of saturated or unsaturated, straight or branched chain alcohol having from about 10 to about 24 carbon atoms with from about 5 to about 50 moles of alkylene (especially ethylene) oxide;. polyethylene glycols having a molecular weight of from about 400 to about 30,000; and the condensation product of 1 mole of alkyl phenol wherein the alkyl chain contains from about 8 to about 18 carbon atoms with from about 4 to about 50 moles of alkylene (especially ethylene) oxide. Further disclosure of nonionic surfactants useful in the present invention is found in U.S. Patent 3,862,058, Nirschl and Gloss, issued January 21, 1975, incorporated herein by reference.
  • Preferred nonionic surfactants for use in the compositions of the present invention, because of their excellent biodegradability and performance characteristics, have the formula R(OC2H4)nOH, wherein R is a primary or secondary, straight or branched alkyl chain containing an average of from about 8 to about 22, preferably from about 10 to about 20, carbon atoms, and n is an average of from.about 2 to about 12, preferably from about 2 to about 9, especially from about 2 to about 7. Where di-long chain cationic materials are used in the compositions of the present invention, it is especially preferred that the R group in the nonionic surfactant contain from about 10 to about 16 carbon atoms. The nonionic surfactants described herein have an HLB (hydrdphilic-lipophilic balance) of from about 5 to about 17, preferably from about 8.5 to about 14, and most preferably from about 10 to about 13.5. HLB, an indicator of a surfactants hydrophilic or lipophilic nature, is defined in detail in Nonionic Surfactants, by M. J. Schick, Marcel Dekker, Inc.,'1976, pp. 607613, incorporated herein by reference.
  • Preferred nonionic surfactants for use in the present invention include the condensation product of C10 alcohol with 3 moles of ethylene oxide, the condensation product of coconut alcohol with 5 or 7 moles of ethylene oxide, the condensation product of tallow alcohol with 6, 9, or 11 moles of ethylene oxide, the condensation product of.-secondary C15 alcohol with 5 or 9 moles of ethylene oxide, the condensation product of C12-13 alcohol with 3, 4, 5, 6.5, or 9 moles of ethylene oxide, the condensation product of C12-15 alcohol with 7 or 9 moles of ethylene oxide, the condensation product of C12 alcohol with 5 moles of ethylene- oxide, the condensation product of C14-15 alcohol with 3, 4, 5, 7, or 9 moles of ethylene oxide, and mixtures thereof.
  • A preferred class of surfactants utilizes alcohols which contain about 20% of 2-methyl branched isomers, and are commercially available under the trade name Neodol, from the Shell Chemical Company. Particularly preferred nonionic surfactants for use in the compositions of the present invention include the condensation product of C10 alcohol with 3 moles of ethylene oxide,.the condensation product of C12-13 alcohol with about 3 moles of ethylene oxide, and the same product which is stripped to remove substantially all lower ethoxylate and nonethoxylated fractions, the condensation product of C14-15 alcohol with 7 moles of ethylene oxide, the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, the condensation product of C12 alcohol with 5 moles of ethylene oxide, the condensation product of coconut alcohol with 5 moles of ethylene oxide, the condensation product of C12-13 alcohol with 9 roles of ethylene oxide, the condensation product of C14-15 alcohol with 3 moles of ethylene oxide, the condensation product of C14-15 alcohol with 4 moles of ethylene oxide, the condensation product of C14-15 alcohol with 9 moles of ethylene oxide, and mixtures thereof.
  • Where optimum particulate soil removal performance is sought, it is preferred that catiohic surfactants used are of the di-long chain variety and that the nonionic surfactant be selected from the group consisting of the condensation product of C14-15 alcohol with 2.25 moles of ethylene oxide, the condensation product of C14-15 alcohol with 7 moles of ethylene oxide, the condensation product of C12-15 alcohol with 7 moles of ethylene oxide, the con- densation product of C12-15 alcohol with 9 moles of ethylene oxide, the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, and the same product which is stripped so as to remove lower ethoxylate and nonethoxylated fractions, the condensation product of C9-11 alcohol with '8 moles of ethylene oxide, which is stripped so as to remove lower.ethoxylate and nonethoxylated fractions, the condensation product of coconut alcohol with 5 moles of ethylene oxide, the condensation product of coconut alcohol with 6 moles of ethylene oxide, the condensation product of tallow alcohol with 9 moles of ethylene oxide, and mixtures thereof.
  • The compositions of the present invention may contain mixtures of nonionic surfactants falling within the above preferred nonionic surfactant definition, such as a mixture of the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide with the condensation product of C14-15 alcohol with 7 moles of ethylene oxide, in a ratio of from about 4:1 to about 1:4..The present invention may also contain mixtures of nonionic surfactants, some of which do not fall within the above preferred nonionic surfactant definition (such as alcohol ethoxylates having an average of greater than about 12 ethylene oxide groups per molecule), and in such mixtures it is preferred that at least one of the nonionic surfactants contained in the mixture falls within the above preferred nonionic surfactant definition and that this preferred nonionic surfactant (or mixture of surfactants) be included in an amount such that it falls within the nonionic/cationic ratio range required herein. Where the nonionic surfactant mixture contains a nonionic surfactant (or surfactants} which falls outside of the above preferred nonionic surfactant definition, it is preferable that the ratio of the surfactant (or surfactants) within the definition to those outside the definition be within the range of from about 1:1 to about 10:1.
  • In addition to the required nonionic surfactant, preferred nonionic surfactant mixtures also contain alkyl glyceryl ethers. Particularly preferred are glyceryl ethers having the formulae:
    Figure imgb0013
    wherein R is an alkyl or alkenyl group of from about 8 to about 18, preferably from about 8 to 12, carbon atoms or an alkaryl group having from about 5 to 14 carbon atoms in the alkyl chain, and n is from 1 to about 6. These compounds may be used together with the nonionic surfactant component of the present invention, in a ratio of nonionic surfactant to glyceryl ether of from about 1:1 to about 4:1, particularly about 7:3. Glyceryl ethers of the type useful in the present invention are disclosed in U.S. Patent 4,098,713, Jones, issued July 4, 1978, and British Patent No. 1.560.083, Jones, published January 30,1930, both of which are incorporated herein by reference.
  • Another preferred group of nonionic surfactants useful herein comprises a mixture of "surfactant" and "co-sur- factant", containing at least one nonionic surfactant falling within the definition of the nonionic surfactants preferred herein, as described in British Patent No. 1.462.134, Collins, published on January 19, 1977, the-disclosure of which is incorporated herein by reference.
  • Cationic Component
  • The cationic surfactants used in the compositions of the present invention have the formula
    Figure imgb0014
    wherein each R1 is an organic group containing a straight or branched alkyl or alkenyl group optionally substituted with up to three phenyl or hydroxyl groups, and optionally interrupted by up to four structures selected from the group consisting of:
    Figure imgb0015
    Figure imgb0016
    and mixtures thereof, and which contains from about 8 to 22 carbon atoms, and which may additionally contain up to 20 ethylene oxide groups, and m is a number from 1 to 3. R 2 is an alkyl or hydroxy alkyl group containing from 1 to 4 carbon: atoms, or a benzyl group with no more than one R in a molecule being benzyl, and x is a number from 0 to 11, preferably from 0 to 6. The remainder of any carbon positions on the Y group are filled by hydrogens. Y is selected from the group consisting of:
    Figure imgb0017
    Figure imgb0018
    Figure imgb0019
    Figure imgb0020
    Figure imgb0021
    wherein p is from 1 to 12,
    Figure imgb0022
    wherein each p is from 1 to 12,
    Figure imgb0023
    wherein each p is from 1 to 12,
    Figure imgb0024
    Figure imgb0025
    and
  • (10) mixtures thereof;
  • L is 1 or 2, with the Y groups being separated by a moiety selected from the group consisting of R and R 2 analogs (preferably alkylene or alkenylene) having from one to about twenty-two carbon atoms and 2 free carbon single bonds when L is 2. Z is a water-soluble anion such as halide, methyl sulfate, sulfate, or nitrate anion, particularly preferred anions being chloride, bromide, iodide, sulfate, or methyl sulfate, in a number to give electrical neutrality of the cationic component.
  • The particular cationic component to be included in a given system depends to a large extent upon the particular nonionic component to be used; it is selected such that it is at least water-dispersible when mixed with the nonionic surfactant. The cationic surfactant is chosen, in light of the particular nonionic surfactant used, in order to satisfy the cloud point requirements of the detergent composition, discussed below. Mixtures of these cationic materials may also be used in the compositions of the present .invention. Preferred cationic surfactants are those having critical micelle concentrations of less than about 500 ppm, especially less than about 100 ppm.
  • In preferred cationic materials, L is equal to 1, p is from 1 to 12, preferably from 1 to 10, and Y is
    Figure imgb0026
    or mixtures thereof.. However, L may be equal to two, thereby yielding cationic components containing two cationic charge centers. An example of a di-cationic component is given below:
    Figure imgb0027
    Other cationic materials which are useful in the compositions of the present invention include phosphonium and sulfonium materials.
  • Additional cationic surfactants useful in the compo- sitions herein are disclosed in European Patent No. 0000235, Murphy, published January 10, 1979, incorporated herein by reference.
  • A particularly preferred type of cationic component, which is described in Japan Patent No. 79-39413, Letton, published March 26, 1979, incorporated herein by reference, has the formula
    Figure imgb0028
    wherein R1 is C1 to C4 alkyl or hydroxyalkyl; R2 is C5 to C30 straight or branched chain alkyl, alkenyl, alkylbenzyl or alkyl phenyl, or
    Figure imgb0029
    wherein s is from 0 to 5; R3 is C1 to C20 alkylene or alkenylene; a is 0 or 1, n is 0 or 1, and n is 1 when a is 1; m is from 1 to 5; Z and Z are each selected from the group consisting of
    Figure imgb0030
    and wherein at least one of said Z1 or Z 2 groups is
    Figure imgb0031
    and X is an anion which makes the compound at least water-dispersible, preferably selected from the group consisting of halide, methyl sulfate, sulfate, and nitrate, more preferably chloride, bromide, iodide, methyl sulfate and sulfate.
  • Particularly preferred cationic surfactants of this type are the choline ester derivatives having the following formula:
    Figure imgb0032
    as well as those compounds in which the
    Figure imgb0033
    linkage in the above formula is replaced with
    Figure imgb0034
  • Particularly preferred examples of this type of cationic surfactant include stearoyl choline ester quaternary ammonium halides (R2 = C17 alkyl), palmitoyl choline ester quaternary ammonium halides (R2 = C15 alkyl), myristoyl choline ester quaternary ammonium halides (R2 = C11 alkyl), and tallowyl choline ester quaternary ammonium halides (R2 = C15-C17 alkyl).
  • .Additional preferred cationic components of the choline ester variety are given by the structural formulas below, wherein p may be from 0 to 20.
    Figure imgb0035
    Figure imgb0036
  • The preferred choline-derivative cationic substances, discussed above, may be prepared by the direct esterification of a fatty acid of the desired chain length with dimethylaminoethanol, in the presence of an acid catalyst. The reaction product is then quaternized with a methyl halide, forming the desired cationic material. The choline- derived cationic materials may also be prepared by the direct esterification of a long chain fatty acid of the desired chain length together with 2-haloethanol, in the presence of an acid catalyst material. The reaction product is then used to quaternize trimethylamine, forming the desired cationic component.
  • Another type of novel, particularly preferred cationic material, described in Japan Patent No. 79-130509, Letton, published October 9, 1979, incorporated herein by reference, has the formula:
    Figure imgb0037
  • In the above formula, each R1 is a C1 to C4 alkyl or hydroxyalkyl group, preferably a methyl group. Each R2 is either hydrogen or C1 to C3 alkyl, preferably hydrogen. R3 is a C4 to C30 straight or branched chain alkyl or alkenyl, preferably a C8 to C18 alkyl group, most preferably a C12 alkyl group. R4 -is-a C1 to C10 alkylene or alkenylene. group. n is from 2 to 4, preferably 2; y is from 1 to 20, . preferably from about 1 to 10, most preferably about 7; a may be 0 or 1, and t may be 0 or 1, but t is 1 when a is 1; and m is from 1 to 5, preferably 2. Z2 is selected from the group consisting of
    Figure imgb0038
    Figure imgb0039
    and at least one of Z1 and Z 2 groups is selected from the group consisting of
    Figure imgb0040
    X is an anion which makes the compound at least water dispersible, and is selected from the group consisting of halides, methyl sulfate, sulfate, and nitrate, particularly chloride, bromide iodide, methyl sulfate and sulfate.. Mixtures of the above structures can also be used.
  • Where particulate soil removal is to be optimized, it is preferred that the cationic surfactants used are of the di-long chain quaternary ammonium type, having two chains which contain an average of from about 12 to about 22, . preferably from about 16 to about 18 carbon atoms. The remaining groups, if any, attach to the quaternary nitrogen atom, are preferably C1 to C4 alkyl or hydroxyalkyl groups. Although it is preferred that the long chains be alkyl groups, these chains may contain hetero atoms or other linkages, such as hydroxy groups, double or triple carbon- carbon bonds, and ester, amide, or ether linkages, as long as each chain falls with the preferred carbon atom ranges given above. Cationic surfactants of this type are disclosed in European Patent No. 0004121, Murphy, pubhshed September 19, 1979, incorporated herein by reference. Preferred cationic surfactants are those having the formulae:
    Figure imgb0041
    wherein the R 1 and R 2 groups contain an average of from about 16 to about 22 carbon atoms, preferably is alkyl groups, and-most preferably contain an average of from about 16 to about 18 carbon atoms,. R3 and R4 are C1 to C4 alkyl or hydroxyalkyl groups, and X is any compatible anion, particularly one selected from the group consisting of halide, hydroxide, methyl sulfate, or acetate anions.
  • Preferred cationic surfactants include ditallowalkyl- dimethyl (or diethyl or dihydroxyethyl) ammonium chloride, ditallowalkyldimethylammonium methyl sulfate, dihexadecylalkyl (C16) (also known as distearyl), dimethyl (or diethyl, or dihydroxyethyl) ammonium chloride, dioctadecylalkyl (C18) dimethylammonium chloride, dieicosylalkyl (C20) dimethylammonium chloride, methyl-(l)-tallowalkylamiao ethyl (2) tallowalkylimidazolinium methyl sulfate (commercially available as Varisoft 475 from Ashland Chemical Company), or mixtures of those surfactants. Particularly preferred cationic surfactants are ditallowalkyldimethylammonium chloride, ditallowalkyldimethylammonium methyl sulfate, methyl(1)tallowalkylamidoethyl(2)tallowalkylimidazolinium methyl sulfate, and mixtures of those surfactants, with ditallowalkyldimethylammonium chloride being especially preferred..
  • Another particularly useful class of cationic surfactant is that in which the two long chains of the cationic surfactant contain a significant amount of unsaturation, such as where at least about 20%, preferably at least about 30%, of the long chains contain at least one double bond. Compounds of this type have the formula
    Figure imgb0042
    wherein R 1 and R2 contain an average of from about 16 to about 22 (most preferably from about 16 to about 18) carbon atoms, and at least about 20% of these chains contain at : least one double bond; R3 and R4 are C1 to C4 alkyl or hydroxyalkyl groups, and X is any compatible anion, particularly one selected from the group consisting of halide, hydroxide, methyl sulfate, or acetate anions. Thus, for example, a preferred cationic surfactant is di-partially hydrogenated tallow dimethylammonium halide (especially chloride or methyl sulfate), which is also known as disoftened- tallowalkyldimethylammonium halide. A commercially available compound of this type is Adogen 470, sold by Ashland Chemical Company, wherein about 30% of the tallow chains are oleyl in character. Compositions made with these cationics showed several significant advantages over those made with more conventional cationics (such ditallowalkyldimethylammonium chloride), particularly those compositions show improved particulate soil removal, especially at low wash temperatures, improved static control, and remain in a stable single phase at temperatures down to about 40°F.
  • Utilizing the nonionic and cationic components, defined above, preferred compositions of the present invention may be formulated using the guidance provided by the reduced monomer concentration of the cationic component (CR) in the laundry solution. Specifically, the selection of a CR value for a given nonionic and cationic surfactant-pair will determine the ratio in which to combine those surfactants. A given nonionic/cationic surfactant pair will give its best particulate or grease/oil removal' performance when it is formulated to have a CR value which falls within-the ranges defined herein. The reduced monomer concentration of a surfactant is obtained by dividing the'concentration of the surfactant monomer present in the laundry solution by the critical micelle concentration (CMC) of that surfactant. As used in this application, CMCs are determined at 105°F in water containing 7 grains/gallon of mixed (2:1; Ca:Mg) hardness, unless otherwise stated.
  • The concept of reduced cationic monomer concentration is explained in detail in European Patent No. 0000235, Murphy, published January 10, 1979; Tamamushi and Tamaki, Proceedings of the Second International Congress of Surface Activity, III, 449, Academic Press, Inc. (1957); and Clint, J. Chem. Soc. Far. Trans., I, 71, 1327 (1975), all of which are incorporated herein by reference. The reduced cationic monomer concentration of the nonionic/ cationic surfactant mixture is defined by equations (a) through (c), below. In systems where grease/oil removal is to be optimized it is preferred that the CR value of the nonionic/cationic surfactant mixture be in the range of from about 0.002 to about 0.2, especially from about 0.002 to about 0.15, most preferably from about 0.002 to about 0.08. In compositions wherein the particulate soil removal capabilities are to be optimized, it is preferred that the nonionic/cationic surfactant mixture have a CR of from 0.005 to about 0.2, especially from about 0.008 to about 0.15, most preferably from about 0.01 to about 0.1. It is in the area of overlap (i.e., CR equals about 0.005 to about 0.2) of these CR ranges that the compositions of the present invention yield both optimum particulate and greasy/oily soil removal.
  • In the following equations these abbreviations are used:
    Figure imgb0043
  • Where a desired CR value or range is selected, and β, C1*, C2*, M1 and M2 are known for given nonionic/cationic surfactant pair, the corresponding nonionic:cationic ratios(s) is calculated as follows:
    • (a) for a given nonionic surfactant, cationic surfactant, and for each end of the CR range desired, solve for x using the equation
      Figure imgb0044
      by standard numerical iterative techniques to an error in x of less than 0.001;
    • (b) find the range of Y from the equation
      Figure imgb0045
      using 100 ppm and 10,000 ppm as the boundary values for W, for each end of the desired CR range;
    • (c) the nonionic/cationic ratio(s) (NCR) corresponding to the CR value or range selected is then obtained by substituting the boundary values for Y into the formula
      Figure imgb0046
  • In addition to these reduced cationic monomer concentration criteria, compositions which give the best performance on greasy/oily soils also satisfy specific cloud point requirements, given below, and detailed in European Patent No. 0000235, Murphy,, published January 10, 1979, incorporated herein by reference. Thus, these preferred compositions have nonionic/cationic mixtures which exhibit a cloud point between about 10°C and 70°C, more preferably between about 20°C and 70°C, especially between about 30°C and about 50°C. The compositions will exhibit their best grease/oil,removal performance when the temperature of the wash solution in which they are used falls within about 20°C, preferably within about 15°C, and most preferably within about 10°C, of the cloud point of the nonionic/ cationic surfactant mixture..
  • As used herein, the term "cloud point" means the temperature at which a graph plotting the light scattering intensity of the composition versus wash solution temperature begins to sharply increase to its maximum value, under the following experimental conditions:
    • The light scattering intensity is measured using a Model VM-12397 Photogoniodiffusometer, manufactured by Societe Francaise d'instruments de controle et d'analyses, France (the instrument being hereinafter referred to as (SOFICA). The SOFICA sample cell and its lid are washed with hot acetone and allowed to dry. The surfactant mixture is made and put into solution with distilled water at a concentration of 1000 ppm. Approximately a 15 ml. sample of the solution is placed into the sample cell, using a syringe with a 0.2µ nucleopore filter. The syringe needle passes through the sample cell lid, so that the cell interior is not exposed to atmospheric dust. The sample is kept in a variable temperature bath, and both the bath and the sample are subject to constant stirring. The bath temperature is heated using the SOFICA's heater and cooled by the addition of ice (heating rate 1°C/minute); the temperature of the sample is determined by the temperature of the bath. The light scattering (90° angle intensity of the sample is then determined at various temperatures, using a green filter and no polarizer in the SOFICA.
    Builder Mixture
  • The detergent compositions herein contain from about 5% to about 99%, preferably from about 20% to about 60%, by weight of-a detergency builder mixture. The builder mixture consists essentially of:
    • (i) a water-insoluble aluminosilicate material selected from the group consisting of
      • (1) Zeolites A, X, or P(B), or mixtures thereof, having a particle size diameter of from about 0.01 microns to about 25 microns and containing at least 10% water of hydration, and
      • (2) amorphous hydrated aluminosilicate material of the empirical formula:
        Figure imgb0047
        wherein M is sodium, potassium, ammonium, z is from about 0.5 to about 2, y is 1, said material having a particle size diameter of less than about 100 microns, a magnesium ion exchange capacity of at least about 50 milligrams equivalents of CaCO3 hardness per gram of anhydrous aluminosilicate, and a Mg++ exchange rate of at least about 1 grain/ gallon/minute/gram/gallon, and
      • (3) mixtures thereof; and
    • (ii) a polycarboxylate builder material;

    wherein the weight-ratio of the aluminosilicate material to the polycarboxylate material is from about 1:10 to about 10:1.
  • Preferably, the weight ratio of the aluminosilicate material to the polycarboxylate-material is from about 1:4 to about 4:1, more preferably from about 1:3 to about 2:1.
  • Preferably, the aluminosilicate materials for use herein are those commonly known as Zeolites A, X, and P(B). The zeolites should contain at least 10% water of hydration and should have a particle size diameter of from about 0.01 microns to about 25 microns, preferably from about 0.1 microns to about 10 microns, more preferably from about 0.5 microns to about 2 microns. Aluminosilicate materials are more fully described in U.S. Patent 4,096,081, Phenicie.et al, issued June 20, 1978, and German Patent No.27 04 003, Ohren, published on August 18, 1977, the disclosures of which are incorporated herein by reference. The amorphous aluminosilicate materials suitable for use herein are fully described in U.S. Patent Application No. 4.180 485, Llenado, published December 25, 1979 ., incorporated herein by reference-Examples of suitable polycarboxylate builder materials for use herein are (1) water-soluble aminopolycarboxylates, e.g., sodium and potassium ethylenediaminetetraacetates, (2) the water-soluble salts of phytic acid, e.g., sodium and potassium phytates, disclosed in U.S. Patent No. 2,739,942, Eckey, issued March 27, 1956, incorporated herein by reference; (3) the polycarboxylate materials described in U.S. Patent 3,364,103; and (4) water-soluble salts of polycarboxylate polymers and copolymers as described in U.S. Patent No. 3,308,067, Diehl, issued March 7, 1967, incorporated herein by reference.
  • A useful detergent builder which may be employed in the present invention comprises a water-soluble salt of a polymeric aliphatic polycarboxylic acid having the following structural relationships as to the position of the carboxylate groups and possessing the following prescribed physical characteristics: (a) a minimum molecular weight of about 350 calculated as to the acid form; (b) an equivalent weight of about 50 to about 80 calculated as to acid form; (c) at least 45 mole percent of the monomeric species having at least two carboxyl radicals separated from each other by not more than two carbon atoms; (d) the site of attachment of the polymer chain of any carboxyl-containing radical being separated by not more than three carbon atoms along the polymer chain .from the site of attachment of the next carboxyl-containing radical. Specific examples of the above-described builders include polymers of itaconic acid, aconitic acid, maleic acid, mesaconic acid, fumaric acid, methylene malonic acid and citraconic acid and copolymers with themselves.
  • In addition, other builders which can be used satisfactorily include water-soluble salts, especially the sodium and potassium salts, of mellitic acid, citric acid, pyromellitic acid, benzene pentacarboxylic acid, oxydiacetic acid, carboxymethyloxysuccinic acid, carboxymethyloxymalonic acid, cis-cyclohexanehexacarboxylic acid, cis-cyclopentanetetracarboxylic acid and oxydisuccinic acid.
  • It is to be understood that while the'alkali metal salts of the foregoing inorganic and organic polyvalent anionic builder salts are preferred for use herein from an economic standpoint, the ammonium, alkanolammonium, e.g., triethanolammonium, diethanolammonium, and the like, water-soluble salts of any of the foregoing builder, anions are also useful herein.
  • Other suitable polycarboxylates for use herein are the polyacetal carboxylates fully described in U.S. Patent 4,144,226, issued March 13, 1979 to Crutchfield et al, and U.S. Patent 4,146,495, issued March 27, 1979 to Crutchfield et al, the disclosures of which are incorporated herein by reference.
  • These polyacetal carboxylates can be prepared by bringing together under polymerization conditions an ester of glyoxylic acid and a polymerization initiator. The resulting polyacetal carboxylate ester is then attached to chemically stable end groups to stabilize the polyacetal carboxylate against rapid depolymerization in alkaline solution, converted to the corresponding salt, and added to a surfactant. European Patent No 80200102.4, Rodriguez et al.,filed-on'February 7, 1980, incorporated herein by reference, discloses a builder system containing these polyacetal carboxylates along with aluminosilicate builder materials, for use in detergent compositions, which preferably contain nonionic/cationic surfactants.
  • Preferred polycarboxylate builders for use in the ' present invention are sodium or potassium nitrilotriacetate or citrate, or mixtures thereof. The compositions of this invention contain from 0 to about 5% phosphate materials, and are preferably substantially free of phosphate materials.
  • Additional Components
  • In particularly preferred embodiments of the present invention, the detergent compositions additionally contain from about 2 to about 25%, preferably from about 2 to about 16%, and most preferably from about 2 to about 10% of a fatty amide surfactant, such as ammonia amides (e.g., coconutalkyl ammonia amide, diethanol amides, and ethoxylated amides). In relation to the nonionic/ cationic surfactant system, the ratio of the cationic/ nonionic mixture to the amide component in the composition is in the 'range of from about 5:1 to about 50:1, preferably from about 8:1 to about 25:1. The addition of the amide component . results in a composition which exhibits improved antiredeposition of both clay and greasy/oily soils. This development is described in greater detail in Japan Patent No. 79-39414; Cambre, published on March 26, 1979, incorporated herein by reference. Preferred amides are C8-C20 monoethanol amides, C8-C20 diethanol amides, and amides having the formula
    Figure imgb0048
    wherein R is a C8-C20 alkyl group, and mixtures thereof. Particularly preferred amides are those where the alkyl group contains from about 10 to about 16 carbon atoms, such as coconut alkyl monoethanol or diethanol amide. Such compounds are commercially available under the tradenames Superamide GR, from Onyx Chemical Co., Jersey City, N.J., Superamide F-3 from Ryco, Inc., Conshohocken, Pa., and Gafamide CDD-518, available from GAF Corp., New York, N.Y.
  • These amide components may also be added in small amounts, i.e., from about 2% to about 5%, to act as suds modifiers. Specifically, they tend to boost the sudsing in an active system which exhibits relatively low sudsing, and depress the sudsing in.an active system which exhibits. relatively high sudsing.
  • The compositions of the present invention may also contain additional ingredients generally found in laundry detergent compositions, at their conventional art-established levels, as long as these ingredients are compatible with the nonionic and cationic components required herein. For example, the compositions may contain up to about 15%, preferably up to about 5%, and most preferably from about 0.001 to about 2%, of a suds suppressor component. Typical suds suppressors useful in the compositions of the present invention include, but are not limited to, those described below.
  • Preferred silicone-type suds suppressing additives.are described in U.S. Patent 3,933,672, issued January 20, 1976, Bartolotta et al., incorporated herein by reference. The silicone material can be represented by alkylated polysiloxane materials such as silica aerogels and xerogels and hydrophobic silicas of various types. The silicone material can be described as a siloxane having the formula:
    Figure imgb0049
    wherein x is from about 20 to about 2,000, and R and R' are each alkyl or aryl groups, especially methyl, ethyl, propyl, butyl and phenyl. Polydimethylsiloxanes (R and R' are methyl, having a molecular weight within the range of from about 200 to about 200,000, and higher, are all useful as suds controlling agents. Additional suitable silicone materials wherein the side chain groups R and R' are alkyl, aryl, or mixed alkyl and aryl hydrocarbyl groups exhibit useful suds controlling properties. Examples of such. ingredients include diethyl-, dipropyl-, dibutyl-, methylethyl-, phenylmethyl-polysiloxanes and the like. Additional useful silicone suds controlling agents can be represented by a mixture of an alkylated siloxane, as referred_to hereinbefore, and solid silica. Such mixtures are prepared by affixing the silicone to the surface of the solid silica. A preferred silicone suds controlling agent is represented by a hydrophobic silanated (most preferably trimethyl- silanated) silica having a particle size in the range from about 10 millimicrons to 20 millimicrons and a specific surface area above about 50 m2/gm intimately admixed with dimethyl silicone fluid having a molecular weight in the range from about 500 to about 200,000 at a weight ratio of silicone to silanated silica of from about 19:1 to about 1:2. The silicone suds suppressing agent is advantageously releasably incorporated in a water-soluble or water-dispersible, substantially non-surface-active, detergent- impermeable carrier..
  • Particularly useful suds suppressors are the self- emulsifying silicone suds suppressors, described in U.S. Patent 4,075,118, Gault et al, issued February 21, 1978, incorporated herein by reference. An example of such a compound is DB-544, commercially available from Dow Corning, which contains a siloxane/glycol copolymer together with solid silica and a siloxane resin.
  • Microcrystalline waxes having a melting point in the range from 35°C-115°C and a saponification value of less than 100 represent additional examples of a preferred suds regulating component for use in the subject compositions, and are described in detail in U.S. Patent 4,056,481, Tate, issued November 1, 1977, incorporated herein by reference. The microcrystalline waxes are substantially water-insoluble, but are water-dispersible in the presence of organic surfactants. Preferred·microcrystalline waxes have a melting point from about 65°C to 100°C, a molecular weight in the range from 400-1,000; and a penetration value of at least 6, measured at 77°F by ASTM-D1321. Suitable examples of the above waxes include: microcrystalline and oxidized micro- crystalline petrolatum waxes; Fischer-Tropsch and oxidized Fischer-Tropsch waxes; ozokerite; ceresin; montan wax; beeswax; candelilla; and carnauba wax.
  • Alkyl phosphate esters represent an additional preferred suds suppressant for use herein. These preferred phosphate esters are predominantly monostearyl phosphate which, in addition thereto, can contain di- and tristearyl phosphates and mono-oleyl phosphates, which can contain di-and trioleyl phosphates.
  • The alkyl phosphate esters frequently contain some trialkyl phosphate. Accordingly, a preferred phosphate ester can contain, in addition to the monoalkyl ester, e.g. monostearyl phosphate, up to about 50 mole percent of dialkyl phosphate and up to about 5 mole percent of trialkyl phosphate.
  • Other adjunct components which may be included in the compositions of the present invention, in their conventional art-established levels for use (i.e., from about 0 to about 40%), include semi-polar nonionic (such as amine oxides), anionic, zwitterionic and ampholytic cosurfactants; detergency builders; bleaching agents; bleach activators; soil release agents (particularly copolymers of ethylene terephthalate and polyethylene oxide terephthalate, such as Milease T sold by ICI, United States, as disclosed in U.S. Patent 4,132,680, Nicol, issued January 2, 1979, incorporated herein.by reference); soil suspending agents; corrosion inhibitors; dyes; fillers; optical brighteners; germicides; pH adjusting agents; alkalinity sources; hydrotropes; enzymes; enzyme-stabilizing agents; perfumes; solvents; carriers; suds modifiers; opacifiers; and the like. However,. because of the numerous and diverse performance advantages of the present invention, certain conventional components, such as cosurfactants and other detergency builders, as well as fabric softening and static control. agents, will not generally be necessary in a particular formulation,. giving the compositions of the present invention a potential cost advantage over conventional detergent/ softener compositions.. In fact, because the compositions of the present invention give such outstanding clay removal performance across the range of water hardness conditions, for environmental reasons the compositions of the present invention contain less than about 5% phosphate materials. Preferred compositions are substantially or totally free of such phosphate materials., without decreasing the performance of the compositions- Preferred compositions of the present invention are also substantially free of carboxymethylcellulose in order to optimize the clay removal performance of the system. Finally, while the compositions of the present invention may contain anionic materials, such as anionic surfactants and hydrotropes (e.g., alkali metal toluene sulfonates), it is preferred that particular anionic materials be contained in amounts sufficiently small such that not more than about 10%, preferably not more than about 5%, of the cationic surfactant, contained in the laundry solution, is complexed by the anionic material. Such a compleaxing of the anionic material with the cationic surfactant, decreases the overall cleaning and fabric conditioning performance of the composition. Suitable anionic materials may be selected based on their strength of complexation with the cationic material included in the composition (as indicated by their dissociation constant). Thus, when an anionic material has a dissociation constant of at least about 1 x 10-3 (such as sodium toluene.sulfonate), it may be contained in an amount up to about 40%, by weight, of the cationic surfactant; where the anionic material has a dissociation constant of at least about 1 x 10-5, but less than about 1 x 10 3, it may be contained in an amount up to about 15%, by weight, of the cationic surfactant; and where the anionic material has a dissociation constant of less than about 1 x 10-5 (such as sodium C11.8 linear alkylbenzene sulfonate), it may be contained only in amounts up to about 10%, by weight, of the cationic surfactant. Preferred compositions are substantially free of such anionic materials.
  • Examples of cosurfactants and detergency builders which may be used in the compositions of the present invention are found in U.S. Patent No. 3,717,630, Booth, issued February 20, 1973, and European Patent No. 0000235, Murthy, published Uantiary 10, 1979, both of which are incorporated herein by reference. However, these components, particularly the anionic surfactants, should be checked with the particular nonionic/cationic surfactant system chosen, and used in an amount, so as to be certain that they will be compatible with the nonionic/cationic surfactant system.
  • The compositions of the present invention may be produced in a variety of forms, including liquid, solid, granular, paste, powder or substrate compositions. Preferred substrate articles may be formulated according to U.S. Patent No. 41170.565, Murphy, -published on October 9, 1979, incorporated herein by reference. In a particularly preferred embodiment, the compositions of the present invention are formulated as liquids and contain up to about 20% of a lower alkyl (Cl to C4) alcohol, particularly ethanol. Liquid compositions containing lower levels of such alcohols (i.e., about 7 to 12%) tend to exhibit less phase separation than compositions containing higher alcohol levels. Granular compositions herein may also contain up to about 15% by weight of alkali metal silicates, especially sodium silicate (2.0 ratio), to increase flowability and physical stability of the granules.
  • The compositions of the present invention are used in the laundering process by forming an aqueous solution containing.from about 0.01 (100 parts per million) to about 0.3% (3,000 parts per million), preferably from about 0.02 to about 0.2%, and most preferably from about 0.03 to about 0.15%, of the detergent compositions defined herein, and agitating the soiled fabrics in that solution. The fabrics are then rinsed and dried. When used in this manner, the compositions of the present invention yield outstanding particulate and greasy/oily soil removal, together with fabric softening, static control; color fidelity, and dye transfer inhibition benefits, without requiring the use of any of the other conventionally used fabric softening and static control laundry additives.
  • All percentages, parts, and ratios used herein are by weight unless otherwise specified.
  • The following nonlimiting examples illustrate the compositions of the present invention.
  • EXAMPLE I
  • Identical clay-soiled cotton, polyester/cotton, and polyester swatches were washed in aqueous solutions having dissolved therein: 500 parts per million (ppm) of a surfactant mixture containing 4.5 parts of the nonionic surfactant C12-13 E6.5 (condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, commercially available as Neodol 23-6.5 from Shell Chemical Company) and 1 part of the cationic surfactant(dihydrogenated tallowalkyl dimethylammonium chloride); 600 ppm of the builder or builder mixture listed below; and 87 ppm of monoethanol amine. The swatches were washed for 10 minutes in a miniature agitator containing 1-1/2 gallons of washing liquor at 100°F and artificial water hardness (2 moles Ca++ to 1 mole Mg++) at levels of 2, 7 and 12 grains per gallon. The swatches comprised approximately 4% by weight of the washing liquor. After washing, the swatches were spun dry and rinsed with 1-1/2 gallons of water, at 100°F, having the same water hardness as that of the water they were washed in. The swatches were then dried in a miniature electric dryer. A Hunter Reflectometer was used to obtain a reflectance reading (in Hunter Whiteness Units) for each of the laundered swatches. A higher reflectance reading indicates greater cleaning effectiveness. The results were as follows:
    Figure imgb0050
    Figure imgb0051
    Figure imgb0052
    Figure imgb0053
    Figure imgb0054
    Figure imgb0055
    Figure imgb0056
    Figure imgb0057
    Figure imgb0058
    Figure imgb0059
    Figure imgb0060
    Figure imgb0061
    Figure imgb0062
    Figure imgb0063
    Figure imgb0064
    Figure imgb0065
  • These results clearly demonstrate that synergistic cleaning performance was provided by the combination of the aluminosilicate and polycarboxylate builder materials. Substantially better overall cleaning was provided, at the same total builder level in otherwise identical compositions, by the detergent composition containing the builder mixture than was provided by the detergent compositions containing only the individual builders.
  • Substantially similar cleaning results are obtained when the cationic surfactant is replaced, in whole or in part, by dita.llowalkyldimethylammonium methyl sulfate, ditallowalkyldimethylammonium iodide, dihexadecylalkyldimethylammonium chloride, dihexadecylalkyldihydroxylethylammonium methyl sulfate, dioctadecylalkyldimethylammonium chloride, dieicosylalkyl methyl ethyl ammonium chloride, dieicosylalkyl dimethylammonium bromide, methyl (1) tallowalkyl amido ethyl (2) tallowalkyl imidazolinium methyl sulfate, or mixtures of these surfactants.
  • Substantially similar results are also obtained where the nonionic surfactant in Composition A is replaced, in whole or in part, by the condensation product of C14-15 alcohol with 2.25 moles of ethylene oxide; the condensation product of C14-15 alcohol with 7 moles of ethylene oxide; the- condensation product of C12-15 alcohol with 9 moles of ethylene oxide; the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, which is stripped so as to remove lower ethoxylate and nonethoxylated fractions; the condensation product of coconut alcohol with 5 moles of ethylene oxide; the condensation product of coconut alcohol with 6 moles of ethylene oxide; the condensation product of C12-15 alcohol with 7 moles of ethylene oxide; the condensation product of tallow alcohol with 9 moles of ethylene oxide; a 1:1 by weight mixture of the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide and the condensation product of C14-15 alcohol with 7 moles of ethylene oxide; and other mixtures of those surfactants.
  • Excellent cleaning results are also obtained where the ratio of nonionic surfactant to .cationic surfactant used is about 2:1, 3:1, 3.5:1, 5:1, 6:1 or 9:1.
  • Cleaning benefits are also obtained when the weight ratio of the aluminosilicate material to the polycarboxylate material is from about. 1:10 to about 10:1, especially when from about 1:4 to about 4:1. At aluminosilicate/poly- carboxylate ratios above 1, the cleaning advantages are most readily apparent at high water hardness levels, such as above 7 grains/gallon.
  • Similar synergistic cleaning effects are obtained when the aluminosilicate material is any hydrated Zeolite A, X or P(B), having a particle size diameter of from about 0.01 microns to about 25 microns, especially from about 0.1 microns to about 10 microns.
  • Substantially similar cleaning performance is obtained when the number of segments (n) in the polyacetal carboxylate builder averages at least 4, but especially when n averages between 10 and 200.
  • EXAMPLE II
  • The following detergent composition was produced:
    Figure imgb0066
  • 1Condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, commercially available as Neodol 23-6.5 from Shell Chemical Company.
  • This composition delivered excellent particulate soil removal performance, as demonstrated in Example I. Further, the composition provided greasy/oily soil removal benefits.
  • EXAMPLE III
  • The following detergent composition was produced: :
    Figure imgb0067
    1Condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, commercially available as Neodol 23-6.5 from Shell Chemical Company.
  • This composition delivered excellent particulate soil removal performance, as demonstrated in Example I. Further, the composition provided greasy/oily soil removal benefits.
  • EXAMPLE IV
  • The following detergent composition is produced:
    Figure imgb0068
  • EXAMPLE V
  • The following detergent composition is produced;
  • Figure imgb0069
  • EXAMPLE VI
  • The following detergent composition is produced:
    Figure imgb0070
    Figure imgb0071
  • EXAMPLE VII
  • The following detergent composition is produced:
  • Figure imgb0072
  • EXAMPLE VIII
  • The following detergent composition is produced:
  • Figure imgb0073
  • EXAMPLE IX
  • The following detergent composition is produced:
  • Figure imgb0074

Claims (11)

1. A detergent composition, which contains from 0 to about 5% phosphate materials, comprising:
(a) from about 1% to about 95% of a surfactant mixture consisting essentially of:
(i) a nonionic surfactant having an HLB of from about 5 to about 17; and
(ii) a cationic surfactant, having the formula
Figure imgb0075
wherein each R1 is an organic group containing a straight or branched alkyl or alkenyl group optionally substituted with up to 3 phenyl or hydroxy groups and optionally interrupted by up to 4 structures selected from the group consisting of
Figure imgb0076
Figure imgb0077
and mixtures thereof, each R containing from about 8 to about 22 carbon atoms, and which may additionally contain up to about 20 ethylene oxide groups;,m is a number from 1 to 3; each R2 is an alkyl or hydroxy alkyl group containing from 1 to 4 carbon atoms or a benzyl group, with no more than one R 2 in a molecule being benzyl; x is from 0 to 11, the remainder of any carbon atom positions being filled by hydrogens; Y is selected from the group consisting of
Figure imgb0078
Figure imgb0079
Figure imgb0080
Figure imgb0081
Figure imgb0082
wherein p is from 1 to 12,
Figure imgb0083
wherein each p is from 1 to 12,
Figure imgb0084
wherein each p is from 1 to 12,
Figure imgb0085
Figure imgb0086
and
(10) mixtures thereof;
L is 1 or 2, the Y groups being separated by a moiety selected from the group consisting of R 1 and R2 analogs having from one to about twenty-two carbon atoms and 2 free carbon single bonds when L is 2; Z is an anion in a number sufficient to give electrical neutrality to the molecule; said cationic surfactant being at least water-dispersible in admixture with said nonionic sufactant;
wherein the ratio of said nonionic surfactant to said cationic surfactant is from about 1:1 to about 100:1; and
(b) from about 5% to about 99% of a detergency builder mixture consisting essentially of:
(i) a water-insoluble aluminosilicate material selected from the group consisting of:
(1) Zeolites A, X, or P(B), or mixtures thereof, having a particle size diameter of from about 0.01 microns to about 25 microns and containing at least 10% water of hydration,
(2) amorphous hydrated aluminosilicate material of the empirical formula:
Mz(zAlO2·ySiO2)

wherein M is sodium, potassium, ammonium, z is from about 0.5 to about 2, y is 1, said material having a particle size diameter of less than about 100 microns, a magnesium ion exchange capacity of at least about 50 milligrams equivalents of CaCO3 hardness per gram of anhydrous aluminosilicate, and a Mg exchange rate of at least about 1 grain/gallon/minute/ gram/gallon, and
(3) mixtures thereof; and
(ii) a polycarboxylate builder material; wherein the weight ratio of the aluminosilicate material to the polycarboxylate material is from about 1:10 to about 10:1.
2. A composition according to Claim 1 comprising from about 20% to about 50% by weight of the builder mixture.
3. A composition.according to Claim 1 wherein the weight ratio of the aluminosilicate material to the polycarboxylate builder material is from about 1:3 to about 2:1.
4. A composition according to Claim 1 wherein the polycarboxylate builder material is selected from the group consisting of the water-soluble salts of nitrilotriacetic acid, ethylene diaminetetracetic acid, mellitic acid, citric acid, pyromellitic acid, benzene pentacarboxylic acid, oxydiacetic acid, carboxymethyloxysuccinic acid, carboxymethyloxymalonic acid, cis-cyclohexanehexacarboxylic acid, cis-cyclopentanetetracarboxylic acid and oxydisuccinic acid or mixtures thereof.
5. A composition according to Claim 1 wherein the aluminosilicate material is Zeolite A, X or P(B), or mixtures thereof.-and has a particle size diameter of from about 0.1 micron to about 10 microns, more preferably from about 0.5 micron to about 2 microns..
6. A composition according to Claim 5 wherein the polycarboxylate builder material is sodium or potassium nitrilotriacetate or citrate, or mixtures thereof.
7. A composition according to Claim 6 which is substantially free of phosphate materials.
8. A composition according to Claim 6 wherein the ratio of said nonionic surfactant to said cationic surfactant is from about 5:1 to about 20:1.
9. A composition according to Claim 6 wherein said nonionic surfactant has the formula R (OC2H4)n OH wherein R is a primary or secondary.alkyl chain of from about 8 to about 22 carbon atoms and n is an average of from about 2 to about 12 and wherein the cationic surfactant is selected from the group consisting of
Figure imgb0087
or mixtures thereof, wherein the R1 and R2 groups contain an average of from about 16 to about 22 carbon atoms, R3 and R are C1 to C4 alkyl or hydroxyalkyl groups, and X is an anion selected from the group consisting of halide, hydroxide, methyl sulfate, sulfate, or acetate.
10. A composition according to Claim 9 wherein the cat- ionic surfactant is selected from the group consisting of ditallowalkyldimethylammonium chloride, ditallowalkyldimethylammonium methyl sulfate, dihexadecylalkyldimethylammonium chloride, dioctadecylalkyldimethylammonium chloride, dieicosylalkyldimethylammonium chloride, methyl (1) tallowalkyl.amido ethyl (2) tallowalkyl imidazolinium methyl sulfate, and mixtures thereof.
11. A composition according to Claim 9 wherein the cationic surfactant is selected from the group consisting of:
Figure imgb0088
wherein R1 is C1 to C4 alkyl or hydroxyalkyl; R 2 is C5 to C30 straight or branched chain alkyl, alkenyl, alkylbenzyl or alkyl phenyl, or
Figure imgb0089
wherein s is from 0 to 5; R3 is C1 to C20 alkylene or alkenylene; a is 0 or 1; n is 0 or 1, and n is 1 when a is 1; m is from 1 to 5; Z1 and Z2 are each selected from the group consisting of
Figure imgb0090
Figure imgb0091
and wherein at least one of said groups is
Figure imgb0092
and X is selected from the group consisting of halide, methyl sulfate, sulfate, and nitrate anions;
Figure imgb0093
wherein each R1 is a C1 to C4 alkyl or hydroxyalkyl group; each R2 is a hydrogen or C1 to C3 alkyl group; R3 is a C4 to C30 straight or branched chain alkyl or alkenyl; R is a C1 to C10 alkylene or alkenylene group; n is from 2 to 4; y is from 1 to 20; a may be 0 or 1, and t may be 0 or 1, but t is 1 when a is 1; m is from 1 to 5; Z 2 is selected from the group consisting of
Figure imgb0094
Figure imgb0095
Z1 is selected from the group consisting of:
Figure imgb0096
and at least one of Z1 or Z2 is selected from the group consisting of
Figure imgb0097
and X is selected from the group consisting of halides, methyl sulfate, sulfate, and nitrate; and (c) mixtures thereof.
EP80200524A 1979-06-18 1980-06-09 Detergent containing nonionic/cationic surfactant and builder mixture Withdrawn EP0021491A1 (en)

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GB2125814A (en) * 1982-07-05 1984-03-14 Lion Corp Additive composition for granular detergent
FR2565243A1 (en) * 1984-06-01 1985-12-06 Colgate Palmolive Co PARTICULATE NON-IONIC SYNTHETIC ORGANIC DETERGENT COMPOSITION, REINFORCED BY DETERGENT ADJUVANTS AND METHODS OF MAKING SAME
FR2565244A1 (en) * 1984-06-01 1985-12-06 Colgate Palmolive Co DETERGENT COMPOSITION SOFTENING FABRICS, REINFORCED BY DETERGENCE ADJUVANT AND METHOD OF WASHING
FR2565246A1 (en) * 1984-06-01 1985-12-06 Colgate Palmolive Co ANTISTATIC SYNTHETIC ORGANIC DETERGENT COMPOSITION, MANUFACTURING METHOD THEREOF, AND WASHING METHOD
FR2586425A1 (en) * 1985-08-20 1987-02-27 Colgate Palmolive Co LIQUID DETERGENT COMPOSITIONS CONTAINING SUSPENSION STABILIZING AGENTS AND A UREA-TYPE ADDITIVE AND METHODS FOR CLEANING FABRICS USING SAME
US4720399A (en) * 1984-06-01 1988-01-19 Colgate-Palmolive Company Process for manufacture of particulate built nonionic synthetic organic detergent composition comprising polyacetal carboxylate and carbonate and bicarbonate builders
US4725455A (en) * 1984-06-01 1988-02-16 Colgate-Palmolive Company Process for manufacturing particulate built nonionic synthetic organic detergent composition comprising polyacetal carboxylate and polyphosphate builders
US4853259A (en) * 1984-06-01 1989-08-01 Colgate-Palmolive Company Process for manufacturing particulate built nonionic synthetic organic detergent composition comprising polyacetal carboxylate and carbonate and bicarbonate builders
EP0384070A2 (en) * 1988-11-03 1990-08-29 Unilever Plc Zeolite P, process for its preparation and its use in detergent compositions
EP0385562A2 (en) * 1989-01-03 1990-09-05 Amway Corporation Laundry detergent composition
EP0502675A2 (en) * 1991-03-05 1992-09-09 Unilever Plc Detergent compositions
WO1994007978A1 (en) * 1992-09-28 1994-04-14 Henkel Kommanditgesellschaft Auf Aktien Process for producing powdered or granular detergent mixtures
US5374370A (en) * 1988-11-03 1994-12-20 Unilever Patent Holdings B.V. Type B aluminosilicates with low Si:Al ratio for detergent use
WO1995027030A1 (en) * 1994-03-31 1995-10-12 The Procter & Gamble Company Detergency composition comprising zeolite map and protease enzyme
WO1996026257A1 (en) * 1995-02-23 1996-08-29 Unilever Plc Cleaning composition comprising saturated dialkyl cationic surfactants
US6235704B1 (en) 1997-07-30 2001-05-22 Basf Aktiengesellschaft Solid textile detergent formulation based on glycin-N and N-Diacetic acid derivatives
WO2003087285A1 (en) * 2002-04-16 2003-10-23 Unilever Plc Fabric treatment composition
WO2010070088A1 (en) 2008-12-18 2010-06-24 Basf Se Surfactant mixture comprising branched short-chained and branched long-chained components
WO2011003904A1 (en) 2009-07-10 2011-01-13 Basf Se Surfactant mixture having short- and long-chained components
WO2011080540A1 (en) * 2009-12-30 2011-07-07 Ecolab Inc. Phosphate substitutes for membrane-compatible cleaning and/or detergent compositions
WO2011117350A1 (en) 2010-03-25 2011-09-29 Basf Se Electrochemical textile-washing method
US9435073B2 (en) 2010-03-25 2016-09-06 Basf Se Electrochemical textile-washing process
US11441105B2 (en) 2017-12-15 2022-09-13 Rhodia Operations Composition containing lanthanide metal complex

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EP0000234A1 (en) * 1977-06-29 1979-01-10 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing
EP0000595A1 (en) * 1977-06-29 1979-02-07 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing

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EP0000235A1 (en) * 1977-06-29 1979-01-10 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing
EP0000234A1 (en) * 1977-06-29 1979-01-10 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing
EP0000595A1 (en) * 1977-06-29 1979-02-07 THE PROCTER & GAMBLE COMPANY Low-phosphate detergent composition for fabric washing

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125814A (en) * 1982-07-05 1984-03-14 Lion Corp Additive composition for granular detergent
US4725455A (en) * 1984-06-01 1988-02-16 Colgate-Palmolive Company Process for manufacturing particulate built nonionic synthetic organic detergent composition comprising polyacetal carboxylate and polyphosphate builders
CH673192GA3 (en) * 1984-06-01 1990-02-28
FR2565246A1 (en) * 1984-06-01 1985-12-06 Colgate Palmolive Co ANTISTATIC SYNTHETIC ORGANIC DETERGENT COMPOSITION, MANUFACTURING METHOD THEREOF, AND WASHING METHOD
FR2565243A1 (en) * 1984-06-01 1985-12-06 Colgate Palmolive Co PARTICULATE NON-IONIC SYNTHETIC ORGANIC DETERGENT COMPOSITION, REINFORCED BY DETERGENT ADJUVANTS AND METHODS OF MAKING SAME
US4720399A (en) * 1984-06-01 1988-01-19 Colgate-Palmolive Company Process for manufacture of particulate built nonionic synthetic organic detergent composition comprising polyacetal carboxylate and carbonate and bicarbonate builders
FR2565244A1 (en) * 1984-06-01 1985-12-06 Colgate Palmolive Co DETERGENT COMPOSITION SOFTENING FABRICS, REINFORCED BY DETERGENCE ADJUVANT AND METHOD OF WASHING
US4853259A (en) * 1984-06-01 1989-08-01 Colgate-Palmolive Company Process for manufacturing particulate built nonionic synthetic organic detergent composition comprising polyacetal carboxylate and carbonate and bicarbonate builders
FR2586425A1 (en) * 1985-08-20 1987-02-27 Colgate Palmolive Co LIQUID DETERGENT COMPOSITIONS CONTAINING SUSPENSION STABILIZING AGENTS AND A UREA-TYPE ADDITIVE AND METHODS FOR CLEANING FABRICS USING SAME
US5374370A (en) * 1988-11-03 1994-12-20 Unilever Patent Holdings B.V. Type B aluminosilicates with low Si:Al ratio for detergent use
EP0384070A2 (en) * 1988-11-03 1990-08-29 Unilever Plc Zeolite P, process for its preparation and its use in detergent compositions
EP0384070A3 (en) * 1988-11-03 1991-01-16 Unilever Plc Zeolite p, process for its preparation and its use in detergent compositions
US5512266A (en) * 1988-11-03 1996-04-30 Unilever Patent Holdings Bv Aluminosilicates and detergent composition
EP0385562A2 (en) * 1989-01-03 1990-09-05 Amway Corporation Laundry detergent composition
EP0385562A3 (en) * 1989-01-03 1991-08-28 Amway Corporation Laundry detergent composition
EP0502675A3 (en) * 1991-03-05 1993-01-07 Unilever Plc Detergent compositions
EP0502675A2 (en) * 1991-03-05 1992-09-09 Unilever Plc Detergent compositions
WO1994007978A1 (en) * 1992-09-28 1994-04-14 Henkel Kommanditgesellschaft Auf Aktien Process for producing powdered or granular detergent mixtures
WO1995027030A1 (en) * 1994-03-31 1995-10-12 The Procter & Gamble Company Detergency composition comprising zeolite map and protease enzyme
WO1996026257A1 (en) * 1995-02-23 1996-08-29 Unilever Plc Cleaning composition comprising saturated dialkyl cationic surfactants
US6235704B1 (en) 1997-07-30 2001-05-22 Basf Aktiengesellschaft Solid textile detergent formulation based on glycin-N and N-Diacetic acid derivatives
US6998380B2 (en) 2002-04-16 2006-02-14 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Fabric treatment composition
WO2003087285A1 (en) * 2002-04-16 2003-10-23 Unilever Plc Fabric treatment composition
WO2010070088A1 (en) 2008-12-18 2010-06-24 Basf Se Surfactant mixture comprising branched short-chained and branched long-chained components
WO2011003904A1 (en) 2009-07-10 2011-01-13 Basf Se Surfactant mixture having short- and long-chained components
WO2011080540A1 (en) * 2009-12-30 2011-07-07 Ecolab Inc. Phosphate substitutes for membrane-compatible cleaning and/or detergent compositions
WO2011117350A1 (en) 2010-03-25 2011-09-29 Basf Se Electrochemical textile-washing method
US9435073B2 (en) 2010-03-25 2016-09-06 Basf Se Electrochemical textile-washing process
US11441105B2 (en) 2017-12-15 2022-09-13 Rhodia Operations Composition containing lanthanide metal complex

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CA1131092A (en) 1982-09-07

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