GB2002403A - Heat-treatment polyesters - Google Patents

Heat-treatment polyesters

Info

Publication number
GB2002403A
GB2002403A GB7831367A GB7831367A GB2002403A GB 2002403 A GB2002403 A GB 2002403A GB 7831367 A GB7831367 A GB 7831367A GB 7831367 A GB7831367 A GB 7831367A GB 2002403 A GB2002403 A GB 2002403A
Authority
GB
United Kingdom
Prior art keywords
polyesters
treatment
heat
linear polyester
packing
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.)
Withdrawn
Application number
GB7831367A
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.)
LL Plant Engineering AG
Original Assignee
ZiAG Plant Engineering GmbH
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 ZiAG Plant Engineering GmbH filed Critical ZiAG Plant Engineering GmbH
Publication of GB2002403A publication Critical patent/GB2002403A/en
Withdrawn legal-status Critical Current

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
    • C08G63/88—Post-polymerisation treatment

Landscapes

  • 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)
  • Wrappers (AREA)

Abstract

Linear polyester, such as polyethylene terephthalate, having a low acetaldehyde content and suitable for packing of food and beverages intended for human consumption is produced by heating a linear polyester having an intrinsic viscosity of about 0.5-0.85 at a temperature of 180-230 DEG C, preferably 200-220 DEG C, for about 4 to 12 hours.
GB7831367A 1977-08-10 1978-07-27 Heat-treatment polyesters Withdrawn GB2002403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82328277A 1977-08-10 1977-08-10

Publications (1)

Publication Number Publication Date
GB2002403A true GB2002403A (en) 1979-02-21

Family

ID=25238305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831367A Withdrawn GB2002403A (en) 1977-08-10 1978-07-27 Heat-treatment polyesters

Country Status (6)

Country Link
BR (1) BR7805094A (en)
DE (1) DE2834162A1 (en)
FR (1) FR2400046A1 (en)
GB (1) GB2002403A (en)
IT (1) IT1098379B (en)
MX (1) MX151032A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230819A (en) 1979-04-13 1980-10-28 The Goodyear Tire & Rubber Company Eliminating acetaldehyde from crystalline polyethylene terephthalate resin
EP0051553A1 (en) * 1980-11-03 1982-05-12 The Goodyear Tire & Rubber Company Polyethylene terephthalate having a reduced acetaldehyde generation rate
EP0227608A1 (en) * 1985-11-19 1987-07-01 COBARR S.p.A. A method of treating hollow articles, in particular polyethylene terephthalate preforms
EP0752302A1 (en) * 1995-07-05 1997-01-08 SIPA S.p.A. Method and apparatus for producing hollow bodies of polyethylene terephthalate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213025C2 (en) * 1982-04-02 1997-06-12 Fischer Karl Ind Gmbh Process for post-condensation of polycondensates

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1327555A (en) * 1962-07-02 1963-05-17 Onderzoekings Inst Res Process for drying granules of amorphous polyethylene terephthalate and for producing products shaped therewith, and the products thus obtained
US3547890A (en) * 1967-08-23 1970-12-15 Teijin Ltd Process and apparatus for drying polyester particles
US3960817A (en) * 1970-10-23 1976-06-01 Ciba-Geigy Ag Solid phase polyester polycondensation
US3804811A (en) * 1972-04-12 1974-04-16 Horizons Inc Shaped articles from reconstituted polyester
AU6935174A (en) * 1973-06-22 1975-11-27 Janssen Pharmaceutica Nv Nitroimidazole thiocarbamates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230819A (en) 1979-04-13 1980-10-28 The Goodyear Tire & Rubber Company Eliminating acetaldehyde from crystalline polyethylene terephthalate resin
EP0051553A1 (en) * 1980-11-03 1982-05-12 The Goodyear Tire & Rubber Company Polyethylene terephthalate having a reduced acetaldehyde generation rate
EP0227608A1 (en) * 1985-11-19 1987-07-01 COBARR S.p.A. A method of treating hollow articles, in particular polyethylene terephthalate preforms
EP0752302A1 (en) * 1995-07-05 1997-01-08 SIPA S.p.A. Method and apparatus for producing hollow bodies of polyethylene terephthalate

Also Published As

Publication number Publication date
BR7805094A (en) 1979-04-10
FR2400046A1 (en) 1979-03-09
MX151032A (en) 1984-09-12
DE2834162A1 (en) 1979-02-22
FR2400046B1 (en) 1983-11-18
IT1098379B (en) 1985-09-07
DE2834162C2 (en) 1989-08-10
IT7826625A0 (en) 1978-08-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)