EP 0527201 A4 19930421 - NOVEL MONOMERS AND PROCESS TO SYNTHESIZE LIQUID CRYSTALLINE POLYESTERS
Title (en)
NOVEL MONOMERS AND PROCESS TO SYNTHESIZE LIQUID CRYSTALLINE POLYESTERS
Publication
Application
Priority
- US 51711990 A 19900501
- US 51712290 A 19900501
Abstract (en)
[origin: WO9117137A1] Alkylene bis(acetoxybenzoate) monomers of formula (I), where Ar is substituted or unsubstituted phenyl and r ranges from about 3 to about 8, can be used to synthesize liquid crystalline polyester compositions when reacted with terephthalic acid. Liquid crystalline polyesters of the aromatic triad type are formed by reaction of the alkylene bis(acetoxybenzoate) monomer described above and an aromatic dicarboxylic acid monomer with removal of acetic acid by-product therefrom.
IPC 1-7
IPC 8 full level
C07C 67/343 (2006.01); C07C 69/86 (2006.01); C07C 69/90 (2006.01); C08G 63/18 (2006.01); C08G 63/181 (2006.01); C08G 63/193 (2006.01); C08G 63/78 (2006.01); C08G 63/82 (2006.01); C08G 63/83 (2006.01); C09K 19/38 (2006.01)
CPC (source: EP)
C07C 69/90 (2013.01); C08G 63/193 (2013.01); C09K 19/3809 (2013.01)
Citation (search report)
See references of WO 9117137A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
WO 9117137 A1 19911114; CA 2082830 A1 19911102; EP 0527201 A1 19930217; EP 0527201 A4 19930421; JP H05507514 A 19931028
DOCDB simple family (application)
US 9102883 W 19910426; CA 2082830 A 19910426; EP 91909643 A 19910426; JP 50914991 A 19910426