ES2081879T3 - Reduccion de la acidez de poliesteres mediante reaccion en fundido obturando con enamidas o bases schiff. - Google Patents
Reduccion de la acidez de poliesteres mediante reaccion en fundido obturando con enamidas o bases schiff.Info
- Publication number
- ES2081879T3 ES2081879T3 ES90114855T ES90114855T ES2081879T3 ES 2081879 T3 ES2081879 T3 ES 2081879T3 ES 90114855 T ES90114855 T ES 90114855T ES 90114855 T ES90114855 T ES 90114855T ES 2081879 T3 ES2081879 T3 ES 2081879T3
- Authority
- ES
- Spain
- Prior art keywords
- polyester
- enamids
- acidity
- schiff bases
- 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.)
- Expired - Lifetime
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)
Abstract
UN METODO PARA LA REACCION DE FUSION DE POLIESTERES, PARTICULARMENTE TEREFTALATO DE POLIETILENO, CON UN AGENTE TAMPON QUE REACCIONA CON LOS GRUPOS CARBOXIL TERMINALES DEL POLIESTER. LOS AGENTES TAMPON, SON ELEGIDOS DEL GRUPO CONSISTENTE EN ENEAMINAS Y BASES SCHIFF.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 (1)
Publication Number | Publication Date |
---|---|
ES2081879T3 true ES2081879T3 (es) | 1996-03-16 |
Family
ID=23570326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90114855T Expired - Lifetime ES2081879T3 (es) | 1989-08-23 | 1990-08-02 | Reduccion de la acidez de poliesteres mediante reaccion en fundido obturando con enamidas o bases schiff. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4988777A (es) |
EP (1) | EP0414008B1 (es) |
JP (1) | JP2858475B2 (es) |
CA (1) | CA2023759C (es) |
DE (1) | DE69023297T2 (es) |
ES (1) | ES2081879T3 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5711958A (en) * | 1996-07-11 | 1998-01-27 | Life Medical Sciences, Inc. | Methods for reducing or eliminating post-surgical adhesion formation |
US6696499B1 (en) * | 1996-07-11 | 2004-02-24 | Life Medical Sciences, Inc. | Methods and compositions 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. |
EP2681260B2 (en) * | 2011-03-02 | 2023-05-31 | Dow Global Technologies LLC | Method for producing an aqueous dispersion |
EP2681278B1 (en) * | 2011-03-02 | 2020-04-22 | Dow Global Technologies LLC | A coating composition and articles made therefrom |
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/en 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/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2858475B2 (ja) | 1999-02-17 |
US4988777A (en) | 1991-01-29 |
CA2023759C (en) | 1995-10-17 |
EP0414008B1 (en) | 1995-11-02 |
CA2023759A1 (en) | 1991-02-24 |
EP0414008A2 (en) | 1991-02-27 |
DE69023297T2 (de) | 1996-04-11 |
JPH03149219A (ja) | 1991-06-25 |
DE69023297D1 (de) | 1995-12-07 |
EP0414008A3 (en) | 1991-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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