GB1078812A - Improvements in or relating to the preparation of copolyesters - Google Patents

Improvements in or relating to the preparation of copolyesters

Info

Publication number
GB1078812A
GB1078812A GB1373/65A GB137365A GB1078812A GB 1078812 A GB1078812 A GB 1078812A GB 1373/65 A GB1373/65 A GB 1373/65A GB 137365 A GB137365 A GB 137365A GB 1078812 A GB1078812 A GB 1078812A
Authority
GB
United Kingdom
Prior art keywords
per cent
resorcinol
hydroquinone
bisphenol
mixture
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
GB1373/65A
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.)
Chemische Werke Witten GmbH
Original Assignee
Chemische Werke Witten 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 Chemische Werke Witten GmbH filed Critical Chemische Werke Witten GmbH
Publication of GB1078812A publication Critical patent/GB1078812A/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
    • C08G63/64—Polyesters containing both carboxylic ester groups and carbonate groups
    • 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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/19—Hydroxy compounds containing aromatic rings
    • C08G63/193—Hydroxy compounds containing aromatic rings containing two or more aromatic rings
    • 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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/19—Hydroxy compounds containing aromatic rings
    • C08G63/193—Hydroxy compounds containing aromatic rings containing two or more aromatic rings
    • C08G63/195—Bisphenol A

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

Copolyesters are made by (a) heating a mixture of a diaryl terephthalate and/or isophthalate (100 mol. per cent), a diaryl ester of carbonic or oxalic acid (0-10 mol per cent) and a dihydric phenol (at least 100 mol per cent) until the melt viscosity of the mixture is at least 2000 poises, (b) adding to the reaction product at least 15% by weight, calculated on the polyester which should theoretically derive from (a) of a linear polyester of terephthalic and/or isophthalic acid and a diprimary alcohol and having a viscosity number of 0.1 to 0.5 and (c) continuing the polycondensation at an elevated temperature. Specified dihydric phenols are resorcinol, hydroquinone and bisphenol A whilst specified dihydric alcohols are ethylene glycol and other polymethylene glycols, 2:2-dimethyl - 1:3 - propanediol, dimethylol cyclohexanes, di-, tri-, tetra- and penta-ethylene glycol and hydroxyethylation products of resorcinol, hydroquinone and bisphenol A.
GB1373/65A 1963-09-26 1965-01-12 Improvements in or relating to the preparation of copolyesters Expired GB1078812A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEC0030978 1963-09-26
DEC0031908 1964-01-17
FR987993A FR1410513A (en) 1963-09-26 1964-09-14 Process for the preparation of thermoplastic linear copolyesters having a softening temperature greater than 100 u deg.c

Publications (1)

Publication Number Publication Date
GB1078812A true GB1078812A (en) 1967-08-09

Family

ID=27209540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1373/65A Expired GB1078812A (en) 1963-09-26 1965-01-12 Improvements in or relating to the preparation of copolyesters

Country Status (2)

Country Link
FR (1) FR1410513A (en)
GB (1) GB1078812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1317497A1 (en) * 2000-09-12 2003-06-11 Polymers Australia PTY Limited Polyester resins with improved properties

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680371A (en) * 1986-02-25 1987-07-14 Celanese Corporation Preparation of aromatic polyester with improved stability by addition of phosphite during preparation
EP0240300A3 (en) * 1986-04-01 1989-03-15 Celanese Corporation Process for incorporating phosphite stabilizer in aromatic polyesters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1317497A1 (en) * 2000-09-12 2003-06-11 Polymers Australia PTY Limited Polyester resins with improved properties
EP1317497A4 (en) * 2000-09-12 2005-03-02 Polymers Australia Pty Ltd Polyester resins with improved properties

Also Published As

Publication number Publication date
FR1410513A (en) 1965-09-10

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