Wholly aromatic polyester composition, process for production thereof, and production therefrom of a film-like or fibrous article of a wholly aromatic polyester
US4416839A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1982 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Jul 16, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/902
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A wholly aromatic polyester composition comprising (a) 100 parts by weight of a wholly aromatic polyester containing as a main component at least one compound selected from the group consisting of aromatic dicarboxylic acids, aromatic dihydroxy compounds and aromatic hydroxycarboxylic acids, and (b) from 5 to 300 parts by weight of a low-molecular-weight compound being substantially non-reactive with the wholly aromatic polyester and having a boiling point of at least about 200.degree. C. under atmospheric pressure and a molecular weight of not more than 1,000. The wholly aromatic polyester composition is produced advantageously by polycondensing in the molten state the polyester-forming starting mixture in the presence of the low-molecular-weight compound. A film-like or fibrous article of a wholly aromatic polyester may be produced by extracting the low-molecular-weight compound from a film-like or fibrous article of the wholly aromatic polyester composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.