GB1351194A - Process for preparing linear polyester - Google Patents

Process for preparing linear polyester

Info

Publication number
GB1351194A
GB1351194A GB1226571A GB1226571A GB1351194A GB 1351194 A GB1351194 A GB 1351194A GB 1226571 A GB1226571 A GB 1226571A GB 1226571 A GB1226571 A GB 1226571A GB 1351194 A GB1351194 A GB 1351194A
Authority
GB
United Kingdom
Prior art keywords
antimony
germanium
polycondensation
polyester
mole
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
Application number
GB1226571A
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
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
Priority claimed from JP4498070A external-priority patent/JPS499112B1/ja
Priority claimed from JP45044983A external-priority patent/JPS499115B1/ja
Priority claimed from JP4498170A external-priority patent/JPS499113B1/ja
Priority claimed from JP4498270A external-priority patent/JPS499114B1/ja
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Publication of GB1351194A publication Critical patent/GB1351194A/en
Expired 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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
    • C08G63/86—Germanium, antimony, or compounds thereof
    • 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
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/87—Non-metals or inter-compounds thereof

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)

Abstract

1351194 Polycondensation catalysts for polyesters MITSUBISHI RAYON CO Ltd 29 April 1971 [26 May 1970 (4)] 12265/71 Heading C3R A process for preparing a polyester containing less than 1% by weight, based on the weight of the polyester, of diethylene glycol comprises carrying out the polycondensation in the presence of an antimony compound and a germanium compound, both compounds being miscible in the polycondensation system, and a phosphoric ester, wherein at least 0À035% of a mole of antimony atoms and no more than 0À02% of a mole of germanium atoms are added per mole of recurring unit of the resultant polyester and the atomic ratio of the germanium atom to the antimony atom is no more than 0À5. The Examples describe preparing polyesters from ethylene glycol and dimethyl terephthalate, optionally with dimethyl isophthalate, using the following polycondensation catalysts, optionally as solutions in ethylene glycol, (a) the trimethyl, triethyl or triphenyl esters of phosphoric acid, (b) antimony trioxide, antimony acetate or antimony triethoxide and (c) amorphous or crystalline germanium dioxide.
GB1226571A 1970-05-26 1971-04-29 Process for preparing linear polyester Expired GB1351194A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4498070A JPS499112B1 (en) 1970-05-26 1970-05-26
JP45044983A JPS499115B1 (en) 1970-05-26 1970-05-26
JP4498170A JPS499113B1 (en) 1970-05-26 1970-05-26
JP4498270A JPS499114B1 (en) 1970-05-26 1970-05-26

Publications (1)

Publication Number Publication Date
GB1351194A true GB1351194A (en) 1974-04-24

Family

ID=27461623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226571A Expired GB1351194A (en) 1970-05-26 1971-04-29 Process for preparing linear polyester

Country Status (4)

Country Link
DE (1) DE2126218B2 (en)
FR (1) FR2090308B1 (en)
GB (1) GB1351194A (en)
NL (1) NL7107222A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208527A (en) * 1978-03-18 1980-06-17 Chemische Werke Huls, Aktiengesellschaft Process for the manufacture of high molecular weight poly-(ethylene terephthalate)
CN114031755A (en) * 2021-12-24 2022-02-11 苏州苏震生物工程有限公司 Preparation method of polyethylene terephthalate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU635356B2 (en) * 1989-11-15 1993-03-18 Toray Industries, Inc. Rubber-reinforcing polyester fiber and process for preparation thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208527A (en) * 1978-03-18 1980-06-17 Chemische Werke Huls, Aktiengesellschaft Process for the manufacture of high molecular weight poly-(ethylene terephthalate)
CN114031755A (en) * 2021-12-24 2022-02-11 苏州苏震生物工程有限公司 Preparation method of polyethylene terephthalate
CN114031755B (en) * 2021-12-24 2023-04-07 苏州苏震生物工程有限公司 Preparation method of polyethylene terephthalate

Also Published As

Publication number Publication date
NL7107222A (en) 1971-11-30
DE2126218B2 (en) 1978-08-17
FR2090308A1 (en) 1972-01-14
DE2126218A1 (en) 1971-12-09
FR2090308B1 (en) 1974-03-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee