CA2163443A1 - Procede pour le traitement des polyesters - Google Patents

Procede pour le traitement des polyesters

Info

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
Application number
CA 2163443
Other languages
English (en)
Inventor
John Jamieson Liggat
Gregory O'brien
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.)
Monsanto Co
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 CA2163443A1 publication Critical patent/CA2163443A1/fr
Abandoned legal-status Critical Current

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.
CA 2163443 1993-06-02 1994-06-01 Procede pour le traitement des polyesters Abandoned CA2163443A1 (fr)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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