CA2023759A1 - Reduction de l'acidite des polyesters par protection des bouts de chaines a l'aide d'enamines ou de bases de schiff - Google Patents
Reduction de l'acidite des polyesters par protection des bouts de chaines a l'aide d'enamines ou de bases de schiffInfo
- Publication number
- CA2023759A1 CA2023759A1 CA2023759A CA2023759A CA2023759A1 CA 2023759 A1 CA2023759 A1 CA 2023759A1 CA 2023759 A CA2023759 A CA 2023759A CA 2023759 A CA2023759 A CA 2023759A CA 2023759 A1 CA2023759 A1 CA 2023759A1
- Authority
- CA
- Canada
- Prior art keywords
- endcapping
- eneamines
- polyesters
- acidity
- reduction
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/91—Polymers modified by chemical after-treatment
- C08G63/914—Polymers modified by chemical after-treatment derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/916—Dicarboxylic acids and dihydroxy compounds
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyamides (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US397,222 | 1982-07-12 | ||
US07/397,222 US4988777A (en) | 1989-08-23 | 1989-08-23 | Reduction of acidity of polyesters by melt reaction endcapping with eneamines or Schiff bases |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2023759A1 true CA2023759A1 (fr) | 1991-02-24 |
CA2023759C CA2023759C (fr) | 1995-10-17 |
Family
ID=23570326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002023759A Expired - Fee Related CA2023759C (fr) | 1989-08-23 | 1990-08-22 | Reduction de l'acidite des polyesters par protection des bouts de chaines a l'aide d'enamines ou de bases de schiff |
Country Status (6)
Country | Link |
---|---|
US (1) | US4988777A (fr) |
EP (1) | EP0414008B1 (fr) |
JP (1) | JP2858475B2 (fr) |
CA (1) | CA2023759C (fr) |
DE (1) | DE69023297T2 (fr) |
ES (1) | ES2081879T3 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6696499B1 (en) * | 1996-07-11 | 2004-02-24 | Life Medical Sciences, Inc. | Methods and compositions for reducing or eliminating post-surgical adhesion formation |
US5711958A (en) * | 1996-07-11 | 1998-01-27 | Life Medical Sciences, Inc. | Methods for reducing or eliminating post-surgical adhesion formation |
US6211249B1 (en) | 1997-07-11 | 2001-04-03 | Life Medical Sciences, Inc. | Polyester polyether block copolymers |
MXPA01001935A (es) * | 2000-07-04 | 2002-08-20 | Hitachi Cable | Manguera de freno. |
KR101845354B1 (ko) * | 2011-03-02 | 2018-04-05 | 다우 글로벌 테크놀로지스 엘엘씨 | 코팅 조성물 및 이로부터 제조된 물품 |
JP6190724B2 (ja) * | 2011-03-02 | 2017-08-30 | ダウ グローバル テクノロジーズ エルエルシー | コーティング組成物およびそれから作製された物品 |
TWI641396B (zh) | 2011-09-23 | 2018-11-21 | Bvw控股公司 | 醫療共聚物 |
TWI619740B (zh) * | 2012-08-16 | 2018-04-01 | 迪愛生股份有限公司 | 纖維素酯樹脂組成物、纖維素酯光學膜及偏光板用保護膜 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT265646B (de) * | 1965-02-25 | 1968-10-25 | Metallgesellschaft Ag | Verfahren zur Erhöhung des Molekulargewichtes eines faser- und filmbildenden Polyesters |
US3968159A (en) * | 1971-08-31 | 1976-07-06 | Monsanto Company | Process for preparing azomethines |
US3839272A (en) * | 1973-02-27 | 1974-10-01 | Fiber Industries Inc | Hydrolytic and melt degradation stabilized polyester |
CH593309A5 (en) * | 1974-10-14 | 1977-11-30 | Inventa Ag | Reduction of carboxyl gp. content of linear aromatic polyester - by treatment with ethylene oxide at high temps. |
US4200731A (en) * | 1979-02-01 | 1980-04-29 | The Goodyear Tire & Rubber Company | Endcapped polyesters |
US4774315A (en) * | 1986-12-23 | 1988-09-27 | General Electric Company | Copoly isophthalate carbonate end-capped with paracumylphenol |
US4839124A (en) * | 1988-02-29 | 1989-06-13 | Allied-Signal Inc. | Reduction of carboxyl end groups in polyester fibers with lactim ethers |
US4886875A (en) * | 1988-12-07 | 1989-12-12 | E. I. Du Pont De Nemours And Company | End-capping of polyarylate carboxyl acid ends by use of aromatic carbonates |
-
1989
- 1989-08-23 US US07/397,222 patent/US4988777A/en not_active Expired - Lifetime
-
1990
- 1990-08-02 EP EP90114855A patent/EP0414008B1/fr not_active Expired - Lifetime
- 1990-08-02 DE DE69023297T patent/DE69023297T2/de not_active Expired - Fee Related
- 1990-08-02 ES ES90114855T patent/ES2081879T3/es not_active Expired - Lifetime
- 1990-08-20 JP JP2217198A patent/JP2858475B2/ja not_active Expired - Fee Related
- 1990-08-22 CA CA002023759A patent/CA2023759C/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH03149219A (ja) | 1991-06-25 |
CA2023759C (fr) | 1995-10-17 |
EP0414008A3 (en) | 1991-06-05 |
ES2081879T3 (es) | 1996-03-16 |
US4988777A (en) | 1991-01-29 |
EP0414008B1 (fr) | 1995-11-02 |
DE69023297D1 (de) | 1995-12-07 |
JP2858475B2 (ja) | 1999-02-17 |
EP0414008A2 (fr) | 1991-02-27 |
DE69023297T2 (de) | 1996-04-11 |
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CA2023759A1 (fr) | Reduction de l'acidite des polyesters par protection des bouts de chaines a l'aide d'enamines ou de bases de schiff | |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |