CA2427431A1 - Pmma moulding compositions with improved low-temperature impact resistance - Google Patents

Pmma moulding compositions with improved low-temperature impact resistance Download PDF

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Publication number
CA2427431A1
CA2427431A1 CA002427431A CA2427431A CA2427431A1 CA 2427431 A1 CA2427431 A1 CA 2427431A1 CA 002427431 A CA002427431 A CA 002427431A CA 2427431 A CA2427431 A CA 2427431A CA 2427431 A1 CA2427431 A1 CA 2427431A1
Authority
CA
Canada
Prior art keywords
weight
cndot
impact
pmma
moulding composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002427431A
Other languages
French (fr)
Other versions
CA2427431C (en
Inventor
Klaus Schultes
Michael Wicker
Werner Hoss
Klaus Albrecht
Hans-Jurgen Kress
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roehm GmbH Darmstadt
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2427431A1 publication Critical patent/CA2427431A1/en
Application granted granted Critical
Publication of CA2427431C publication Critical patent/CA2427431C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/12—Copolymers of styrene with unsaturated nitriles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
    • C08L51/085—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds on to polysiloxanes

Abstract

The invention relates to a molding material, which is provided with impact resistance and which is characterized by exhibiting a particularly high impact resistance at low temperatures (-20 ~C, -40 ~C). This low-temperature impact resistance is achieved by using a silicon elastomer.

Claims (11)

1. Impact-resistant PMMA moulding composition com-posed of a) a matrix of .cndot. from 75 to 100% by weight of methyl meth-acrylate .cndot. from 0.1 to 15% by weight of acrylate and .cndot. from 0 to 15% by weight of other copolymer-izable compounds and b) another matrix of .cndot. from 70 to 92% by weight of styrene .cndot. from 8 to 30% by weight of acrylonitrile .cndot. from 0 to 22% by weight of other comonomers c) an impact modifier of silicone elastomer parti-cles with PMMA shell and d) an impact modifier based on acrylate rubber, where the contents of c) are from 5 to 95% by weight and of d) are from 95 to 5% by weight, based on the entirety of components c) and d), and where, based on the entirety a), b), c) and d), from 0 to 45% by weight of component b), from 5 to 30% by weight of component c), and from 1 to 30% by weight of component d) are added, and the moulding composition has the following properties:

.cndot. a Vicat softening point to ISO 306 (B50) of at least 95°C, .cndot. a notched impact strength NIS (Izod 180/leA, 1.8 MPa) to ISO 180 of at least 3.0 kJ/m2 at -20°C and of at least
2.5 kJ/m2 at -40°C, .cndot. a modulus of elasticity to ISO 527-2 of at least 2000 MPa.

2. Impact-resistant PMMA moulding composition accord-ing to Claim 1, characterized in that the matrix has an average molecular weight (weight average) from 90,000 to 250,000 daltons.
3. Impact-resistant PMMA moulding composition accord-ing to Claim 1, characterized in that the impact-modifier c) has a silicone content of up to 95% by weight.
4. Impact-resistant PMMA moulding composition accord-ing to Claim 1, characterized in that]

the PMMA shell of the impact modifier c) is composed of the polymer of from 30 to 100% by weight of methyl methacrylate and from 0 to 30% by weight of other copolymerizable compounds.
5. Impact-resistant PMMA moulding composition accord-ing to Claim 1, characterized in that the primary particle size of the impact modifier c) is a diameter of from 10 to 300 nm and the distribution of the primary particle sizes is monomodal (polydispersity index not more than 0.2).
6. Impact-resistant PMMA moulding composition according to Claim 1, characterized in that the impact modifier d) is composed either .cndot. of core-shell particles (core composed of acryl-ate rubber, particle size from 100 to 1000 nm), or of core-shell-shell (C/S1/S2) particles (S1 com-posed of acrylate rubber, particle size from 100 to 1000 nm), or .cndot. of finely divided acrylate rubber in PMMA beads (particle size from 100 to 500 µm).
7. Use of the moulding composition according to any of the preceding claims for producing mouldings by injection moulding or extrusion, which even at temperatures extending to -40°C have a notched impact strength NIS (Izod 180/1eA, 1.8 MPa) to ISO
180 of at least 2.5 kJ/m2.
8. Use of the mouldings according to Claim 7 in applications with periods of exposure to temperatures below -10°C.
9. Use of the mouldings according to Claim 8 characterized in that the moulding is a mirror housing for a vehicle, or is a spoiler.
10. Use of the mouldings according to Claim 8 characterized in that the moulding is a tube or a protective covering.
11. Use of the mouldings according to Claim 8 characterized in that the moulding is a refrigerator component.
CA2427431A 2000-10-31 2001-10-22 Pmma moulding compositions with improved low-temperature impact resistance Expired - Fee Related CA2427431C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10054051A DE10054051A1 (en) 2000-10-31 2000-10-31 PMMA molding compound with improved low-temperature impact strength
DE10054051.1 2000-10-31
PCT/EP2001/012172 WO2002036682A1 (en) 2000-10-31 2001-10-22 Pmma molding materials exhibiting an improved low-temperature impact resistance

Publications (2)

Publication Number Publication Date
CA2427431A1 true CA2427431A1 (en) 2003-04-30
CA2427431C CA2427431C (en) 2011-01-11

Family

ID=7661733

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2427431A Expired - Fee Related CA2427431C (en) 2000-10-31 2001-10-22 Pmma moulding compositions with improved low-temperature impact resistance

Country Status (8)

Country Link
US (1) US6890993B2 (en)
EP (1) EP1330493B1 (en)
JP (1) JP4060183B2 (en)
AT (1) ATE315613T1 (en)
AU (1) AU2002216976A1 (en)
CA (1) CA2427431C (en)
DE (2) DE10054051A1 (en)
WO (1) WO2002036682A1 (en)

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DE10043868A1 (en) * 2000-09-04 2002-04-04 Roehm Gmbh PMMA molding compounds with improved impact resistance
US7883721B2 (en) 2001-01-30 2011-02-08 Smithkline Beecham Limited Pharmaceutical formulation
US20050175687A1 (en) * 2001-01-30 2005-08-11 Mcallister Stephen M. Pharmaceutical formulations
GB0102342D0 (en) * 2001-01-30 2001-03-14 Smithkline Beecham Plc Pharmaceutical formulation
CA2437045C (en) 2001-02-07 2010-09-14 Guenter Schmitt Hot sealing compound for aluminum foils applied to polypropylene and polystyrene
DE10127134A1 (en) * 2001-06-05 2002-12-12 Roehm Gmbh Production of injection molded shaped articles, especially for retarded drug release, by blending (meth)acrylate copolymer with plasticizer and other additives, degassing and molding
DE10203565C1 (en) * 2002-01-29 2003-07-10 Roehm Gmbh Production of polymethyl methacrylate casting, used for making acoustic insulation panels and balcony cladding, involves adding impact modified of core-shell I-shell II type as masterbatch in polymethyl methacrylate
DE10236240A1 (en) * 2002-02-06 2003-08-14 Roehm Gmbh Silicone graft copolymers with core-shell structure, impact-modified molding compositions and moldings, and process for their preparation
DE10204890A1 (en) * 2002-02-06 2003-08-14 Roehm Gmbh Impact-resistant molding compound and molded body
DE10243062A1 (en) * 2002-09-16 2004-03-25 Röhm GmbH & Co. KG A sanitary material made from thermoplastic polymethyl methacrylate molding material useful for sanitary material resistant to hot water,which is crack resistant, cheap to produce, and can be recycled
DE10260065A1 (en) * 2002-12-19 2004-07-01 Röhm GmbH & Co. KG Core-shell particles for toughening of poly (meth) acrylate molding compounds
DE10260089A1 (en) * 2002-12-19 2004-07-01 Röhm GmbH & Co. KG Process for the preparation of aqueous dispersions
DE10345045A1 (en) * 2003-09-26 2005-04-14 Röhm GmbH & Co. KG Surface coating of materials, e.g. to form a protective layer, involves laminating with a film made from a mixture of methyl methacrylate-based polymer and an acrylic copolymer with reactive comonomer units
DE10349144A1 (en) * 2003-10-17 2005-05-12 Roehm Gmbh Polymer mixture for injection mouldings with a matt surface, e.g. exterior vehicle parts, comprises an acrylic matrix, a crosslinked acrylic impact modifier and plastic particles with a specified range of particle sizes
MX2007008855A (en) * 2003-10-18 2008-03-13 Roehm Gmbh Core and shell particle for modifying impact resistance of a mouldable poly(meth)acrylate material.
DE10351535A1 (en) 2003-11-03 2005-06-09 Röhm GmbH & Co. KG Multilayer film of (meth) acrylate copolymer and polycarbonate
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DE102007005432A1 (en) * 2007-01-30 2008-07-31 Evonik Röhm Gmbh Molding material useful for making shaped products comprises a (meth)acrylate (co)polymer and ceramic beads
DE102007026201A1 (en) * 2007-06-04 2008-12-11 Evonik Röhm Gmbh Colored composition with increased stress cracking resistance
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DE102007028601A1 (en) 2007-06-19 2008-12-24 Evonik Röhm Gmbh Reactive mixture for coating moldings by means of reaction injection molding and coated molding
DE102007029263A1 (en) * 2007-06-22 2008-12-24 Evonik Röhm Gmbh PMMA / PVDF film with particularly high weather resistance and high UV protection
DE102007051482A1 (en) * 2007-10-25 2009-04-30 Evonik Röhm Gmbh Process for the production of coated moldings
EP2241340B1 (en) * 2008-01-10 2014-07-30 Alcare Co., Ltd. Pressure-sensitive adhesive agent for skin, pressure-sensitive adhesive sheet for skin and face plate of ostomy appliance
DE102008001231A1 (en) * 2008-04-17 2009-10-22 Evonik Röhm Gmbh Flameproof PMMA molding compound
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DE102009020937A1 (en) * 2009-05-12 2010-11-18 Bayer Materialscience Ag Cold impact coextrusion films
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CN103304944A (en) * 2013-07-11 2013-09-18 常熟市慧丰塑料制品有限公司 Formula of modified polymethyl methacrylate
CN103387732A (en) * 2013-08-01 2013-11-13 太仓市晨洲塑业有限公司 Formula of modified polymethyl methacrylate
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Also Published As

Publication number Publication date
EP1330493A1 (en) 2003-07-30
AU2002216976A1 (en) 2002-05-15
DE50108705D1 (en) 2006-04-06
ATE315613T1 (en) 2006-02-15
CA2427431C (en) 2011-01-11
US6890993B2 (en) 2005-05-10
DE10054051A1 (en) 2002-05-29
EP1330493B1 (en) 2006-01-11
US20040024121A1 (en) 2004-02-05
JP2004529992A (en) 2004-09-30
JP4060183B2 (en) 2008-03-12
WO2002036682A1 (en) 2002-05-10

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