GB1078812A – Improvements in or relating to the preparation of copolyesters
– Google Patents
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
1963-09-26
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.)
1963-09-26
Filing date
1965-01-12
Publication date
1967-08-09
1965-01-12
Application filed by Chemische Werke Witten GmbH
filed
Critical
Chemische Werke Witten GmbH
1967-08-09
Publication of GB1078812A
publication
Critical
patent/GB1078812A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
JPS62241917A
(en)
*
1986-04-01
1987-10-22
ヘキスト・セラニーズ・コーポレーション
Compounding of phosphite stabilizer with aromatic polyester
1964
1964-09-14
FR
FR987993A
patent/FR1410513A/en
not_active
Expired
1965
1965-01-12
GB
GB1373/65A
patent/GB1078812A/en
not_active
Expired
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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