Liquid crystal copolyesters containing terephthalic acid and 2,6-naphthalenedicarboxylic acid
US4169933A · kind A · utility
39Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1977 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Aug 8, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/605
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are liquid crystal copolyesters having melting points low enough to allow the copolyesters to be melt-processed in conventional equipment. The copolyesters are prepared from terephthalic acid, 2,6-naphthalenedicarboxylic acid, a diacyl ester of hydroquinone and a p-acyloxybenzoic acid and contain the following divalent radicals: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.