DE3685973T2 - Verfahren zur herstellung eines produkts von geliertem cellulosetriacetat und das so hergestellte produkt. - Google Patents

Verfahren zur herstellung eines produkts von geliertem cellulosetriacetat und das so hergestellte produkt.

Info

Publication number: DE3685973T2
Authority: DE; Germany
Prior art keywords: product; cellulose triacetate; producing; gelled cellulose; product produced
Prior art date: 1985-03-21
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.): Expired - Fee Related

Application number

DE8686301831T

Other languages

English (en)

Other versions

DE3685973D1 (de

Inventor

Larry Nichols

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.)

Purepac Inc

Original Assignee

Moleculon Inc

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.)

1985-03-21

Filing date

1986-03-13

Publication date

1992-12-24

1986-03-13 Application filed by Moleculon Inc filed Critical Moleculon Inc

1992-08-20 Application granted granted Critical

1992-08-20 Publication of DE3685973D1 publication Critical patent/DE3685973D1/de

1992-12-24 Publication of DE3685973T2 publication Critical patent/DE3685973T2/de

2006-03-14 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

229920002284 Cellulose triacetate Polymers 0.000 title abstract 3
NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 title abstract 3
238000004519 manufacturing process Methods 0.000 title 1
238000000034 method Methods 0.000 title 1
239000003795 chemical substances by application Substances 0.000 abstract 1
238000001816 cooling Methods 0.000 abstract 1
229940079593 drug Drugs 0.000 abstract 1
239000003814 drug Substances 0.000 abstract 1
238000001704 evaporation Methods 0.000 abstract 1
239000007788 liquid Substances 0.000 abstract 1
239000012528 membrane Substances 0.000 abstract 1
239000000203 mixture Substances 0.000 abstract 1
239000002904 solvent Substances 0.000 abstract 1
230000037317 transdermal delivery Effects 0.000 abstract 1

Classifications

- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/38—Cellulose; Derivatives thereof
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0014—Skin, i.e. galenical aspects of topical compositions
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/22—Post-esterification treatments, including purification
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/10—Esters of organic acids, i.e. acylates
- C08L1/12—Cellulose acetate

DE8686301831T 1985-03-21 1986-03-13 Verfahren zur herstellung eines produkts von geliertem cellulosetriacetat und das so hergestellte produkt. Expired - Fee Related DE3685973T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/714,482 US4643856A (en)	1985-03-21	1985-03-21	Process of making gelled cellulose triacetate product

Publications (2)

Publication Number	Publication Date
DE3685973D1 DE3685973D1 (de)	1992-08-20
DE3685973T2 true DE3685973T2 (de)	1992-12-24

Family

ID=24870224

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686301831T Expired - Fee Related DE3685973T2 (de)	1985-03-21	1986-03-13	Verfahren zur herstellung eines produkts von geliertem cellulosetriacetat und das so hergestellte produkt.

Country Status (6)

Country	Link
US (1)	US4643856A (de)
EP (1)	EP0195605B1 (de)
JP (1)	JPH0674351B2 (de)
AT (1)	ATE78263T1 (de)
CA (1)	CA1265413A (de)
DE (1)	DE3685973T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4908027A (en) *	1986-09-12	1990-03-13	Alza Corporation	Subsaturated transdermal therapeutic system having improved release characteristics
US5344656A (en) *	1986-09-12	1994-09-06	Alza Corporation	Subsaturated transdermal therapeutic system having improved release characteristics
US4781924A (en)	1987-11-09	1988-11-01	Alza Corporation	Transdermal drug delivery device
US5004610A (en) *	1988-06-14	1991-04-02	Alza Corporation	Subsaturated nicotine transdermal therapeutic system
US5206019A (en) *	1989-05-30	1993-04-27	Moleculon, Inc.	Soap compositions containing liquid-loaded powders
US5209923A (en) *	1989-05-30	1993-05-11	Moleculon, Inc.	Sunscreen composition
US5223251A (en) *	1989-05-30	1993-06-29	Purepac, Inc.	Skin fragrance compositions
US5209932A (en) *	1989-05-30	1993-05-11	Moleculon, Inc.	Foot care compositions
US5206022A (en) *	1989-05-30	1993-04-27	Moleculon, Inc.	Insect repellent compositions
US5223267A (en) *	1989-05-30	1993-06-29	Purepac, Inc.	Analgesic compositions
US5290570A (en) *	1989-05-30	1994-03-01	Purepac, Inc.	Lotions containing liquid-loaded powder
US5000947A (en) *	1989-05-30	1991-03-19	Moleculon, Inc.	Shaped articles containing liquefiable powders for delivery of cosmetic and other personal care agents
JP2559073B2 (ja) *	1990-04-19	1996-11-27	富士写真フイルム株式会社	セルローストリアセテートフィルムの製造方法
GB2276819B (en) *	1993-03-23	1996-12-11	Johnson & Johnson Medical	Aqueous wound treatment composition comprising a polysaccharide and hexylene glycol
CN102949297A (zh) *	2012-06-14	2013-03-06	江西农业大学	驱蚊凝胶剂以及制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1062198A (fr) *	1952-08-26	1954-04-20	Comptoir Textiles Artificiels	Procédé de filature de triacétate de cellulose
GB786819A (en) *	1954-10-06	1957-11-27	Celanese Corp	Preparation of spinning solutions of cellulose triacetate
US2999760A (en) *	1958-05-23	1961-09-12	Du Pont	Cellulose acetate composition
IL27218A (en) *	1966-01-17	1970-05-21	Aerojet General Co	Reverse osmosis and membrane manufacture
US3595601A (en) *	1968-03-04	1971-07-27	Celanese Corp	Dye additive for cellulose esters
US3917777A (en) *	1972-12-13	1975-11-04	Kobe Steel Ltd	Process for the preparation of dry semipermeable
US4029726A (en) *	1973-05-23	1977-06-14	Moleculon Research Corporation	Cellulosic-liquid composite materials and process of preparing such materials
US3846404A (en) *	1973-05-23	1974-11-05	Moleculon Res Corp	Process of preparing gelled cellulose triacetate products and the products produced thereby
US4247498A (en) *	1976-08-30	1981-01-27	Akzona Incorporated	Methods for making microporous products
JPS5823408A (ja) *	1981-08-05	1983-02-12	Nippon Steel Corp	磁性の優れた１方向性電磁鋼板の製造法

1985
- 1985-03-21 US US06/714,482 patent/US4643856A/en not_active Expired - Lifetime
1986
- 1986-03-13 AT AT86301831T patent/ATE78263T1/de not_active IP Right Cessation
- 1986-03-13 DE DE8686301831T patent/DE3685973T2/de not_active Expired - Fee Related
- 1986-03-13 EP EP86301831A patent/EP0195605B1/de not_active Expired
- 1986-03-17 JP JP61057182A patent/JPH0674351B2/ja not_active Expired - Lifetime
- 1986-03-18 CA CA000504334A patent/CA1265413A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0195605A2 (de)	1986-09-24
EP0195605B1 (de)	1992-07-15
JPS61221239A (ja)	1986-10-01
US4643856A (en)	1987-02-17
EP0195605A3 (en)	1987-11-19
JPH0674351B2 (ja)	1994-09-21
ATE78263T1 (de)	1992-08-15
CA1265413A (en)	1990-02-06
DE3685973D1 (de)	1992-08-20

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Legal Events

Date	Code	Title	Description
1993-08-12	8364	No opposition during term of opposition
1995-03-02	8327	Change in the person/name/address of the patent owner	Owner name: PUREPAC, INC., CAMBRIDGE, MASS., US
1995-03-02	8328	Change in the person/name/address of the agent	Free format text: FRHR. VON PECHMANN, E., DIPL.-CHEM. DR.RER.NAT. BEHRENS, D., DR.-ING. BRANDES, J., DIPL.-CHEM. DR.RER.NAT. GOETZ, R., DIPL.-ING. DIPL.-WIRTSCH.-ING. VON HELLFELD, A., DIPL.-PHYS. DR.RER.NAT., PAT.-ANWAELTE WUERTENBERGER, G., DR., RECHTSANW., 81541 MUENCHEN
2000-05-11	8339	Ceased/non-payment of the annual fee