Aromatic polyesters and high strength filaments thereof
US4412058A · kind A · utility
23Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1983 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | Feb 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/6826
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Filaments, films or moldings are prepared from meltable polyesters derived from chloro- or methyl-hydroquinone, terephthalic acid, a member of the group consisting of 4,4'-dihydroxybiphenyl, and 4-carboxy-4'-hydroxybiphenyl and a member of the group consisting of isophthalic acid, resorcinol and 1,3-hydroxybenzoic acid. As-spun filaments from these polymers can be heat treated while free from tension to increase their tenacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.