CA2163443A1 - Procede pour le traitement des polyesters - Google Patents
Procede pour le traitement des polyestersInfo
- Publication number
- CA2163443A1 CA2163443A1 CA 2163443 CA2163443A CA2163443A1 CA 2163443 A1 CA2163443 A1 CA 2163443A1 CA 2163443 CA2163443 CA 2163443 CA 2163443 A CA2163443 A CA 2163443A CA 2163443 A1 CA2163443 A1 CA 2163443A1
- Authority
- CA
- Canada
- Prior art keywords
- process according
- plasticiser
- polyester
- pha
- units
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- 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
- C08G63/88—Post-polymerisation treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
L'invention concerne un procédé d'amélioration des propriétés mécaniques d'une composition de polyester vieilli comprenant au moins un polyhydroxyalcanoate (PHA) et au moins un plastifiant de celui-ci, ce procédé consistant à chauffer à une température à laquelle (i) on redonne au polyester ses propriétés d'origine non vieillies et (ii) on retarde le vieillissement ultérieur du polyester telle que l'indique une amélioration importante d'au moins une mesure indicatrice du vieillissement comparativement à un polyester du même âge non traité à chaud. L'invention comprend une composition de polyester, et des articles façonnés qui ont été soumis à ce processus, et dont on retarde le vieillissement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9311401.5 | 1993-06-02 | ||
GB939311401A GB9311401D0 (en) | 1993-06-02 | 1993-06-02 | Polyester composition |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2163443A1 true CA2163443A1 (fr) | 1994-12-08 |
Family
ID=10736523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2163443 Abandoned CA2163443A1 (fr) | 1993-06-02 | 1994-06-01 | Procede pour le traitement des polyesters |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0701581A1 (fr) |
JP (1) | JPH09504808A (fr) |
AU (1) | AU6851494A (fr) |
CA (1) | CA2163443A1 (fr) |
GB (1) | GB9311401D0 (fr) |
WO (1) | WO1994028048A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2284601A (en) * | 1999-12-30 | 2001-07-16 | Procter & Gamble Company, The | Biodegradable plastic food service items |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8415199D0 (en) * | 1984-06-14 | 1984-07-18 | Ici Plc | Powders |
JPS6169431A (ja) * | 1984-09-14 | 1986-04-10 | Teijin Ltd | ポリ(β−ヒドロキシ酪酸)成形物の延伸方法 |
US5076983A (en) * | 1990-07-16 | 1991-12-31 | E. I. Du Pont De Nemours And Company | Polyhydroxy acid films |
-
1993
- 1993-06-02 GB GB939311401A patent/GB9311401D0/en active Pending
-
1994
- 1994-06-01 EP EP94917075A patent/EP0701581A1/fr not_active Ceased
- 1994-06-01 CA CA 2163443 patent/CA2163443A1/fr not_active Abandoned
- 1994-06-01 AU AU68514/94A patent/AU6851494A/en not_active Abandoned
- 1994-06-01 WO PCT/GB1994/001182 patent/WO1994028048A1/fr not_active Application Discontinuation
- 1994-06-01 JP JP7500419A patent/JPH09504808A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0701581A1 (fr) | 1996-03-20 |
JPH09504808A (ja) | 1997-05-13 |
GB9311401D0 (en) | 1993-07-21 |
AU6851494A (en) | 1994-12-20 |
WO1994028048A1 (fr) | 1994-12-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Dead |