Melt processable, liquid crystalline polyesters
US4849499A · kind A · utility
12Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1988 |
| Grant date | Jul 18, 1989 |
| Priority date | — |
| Expiry date | Aug 1, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/605
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A high use temperature wholly aromatic polyester resin, comprising, (i) a diacid component comprising 2,6-naphthalenedicarboxylic acid (N) and terephthalic acid (T) monomer units, wherein the ratio N:T is from about 0.25 to about 4.0, (ii) an aromatic diol component, comprising 4,4'-dihydroxybiphenyl monomer units, and (iii) 10-80 mole percent p-hydroxybenzoic acid monomer units, based on the total monomer units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.