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1. (WO1991006590) AROMATIC POLYESTER PROCESS AND PRODUCT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006590 International Application No.: PCT/US1990/006068
Publication Date: 16.05.1991 International Filing Date: 22.10.1990
Chapter 2 Demand Filed: 29.03.1991
IPC:
C08G 63/193 (2006.01) ,C08G 63/676 (2006.01) ,C08G 63/83 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02
Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
12
derived from polycarboxylic acids and polyhydroxy compounds
16
Dicarboxylic acids and dihydroxy compounds
18
the acids or hydroxy compounds containing carbocyclic rings
19
Hydroxy compounds containing aromatic rings
193
containing two or more aromatic rings
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
66
Polyesters containing oxygen in the form of ether groups
668
derived from polycarboxylic acids and polyhydroxy compounds
676
in which at least one of the two components contains aliphatic unsaturation
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
78
Preparation processes
82
characterised by the catalyst used
83
Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
Applicants:
HOECHST CELANESE CORPORATION [US/US]; Patent Department 86 Morris Avenue Summit, NJ 07901, US
Inventors:
GUPTA, Balaram; US
Agent:
WINTER, Richard, C.; PCT International, Inc. Hoechst Celanese Corporation Patent Department 86 Morris Avenue Summit, NJ 07901 , US
HUNTER, James, M., Jr.; Hoechst Celanese Corporation 86 Morris Avenue Summit, NJ 07901, US
Priority Data:
430,55502.11.1989US
Title (EN) AROMATIC POLYESTER PROCESS AND PRODUCT
(FR) PROCEDE ET PRODUIT DE POLYESTER AROMATIQUE
Abstract:
(EN) A process is described for producing shapable aromatic polyesters derived from 1,3-bis(p-carboxyphenoxy)propane (CPP) and a dihydric phenol comprising forming a mixed anhydride of CPP with a lower monocarboxylic acid containing at least 2 carbon atoms, e.g., acetic acid, and subsequently polymerizing said mixed anhydride with said dihydric phenol or a reactable diester of said dihydric phenol, to obtain said aromatic polyester. The process is capable of producing aromatic polyesters as described having a glass transition temperature of at least about 70 °C.
(FR) Procédé permettant de produire des polyesters aromatiques façonnables dérivés de 1,3-bis(p-carboxyphénoxie)propane (CPP) et un phénol dihydrique consistant à former un anhydride mélangé de CPP avec un acide monocarboxylique inférieur contenant au moins 2 atomes de carbone, par exemple l'acide acétique, puis à polymériser cet anhydride mélangé avec le phénole dihydrique ou un diester du phénol dihydrique pour obtenir le polyester aromatique. Le procédé permet de produire des polyesters aromatiques ayant une température de transition du verre d'au moins 70 °C environ.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)