Process for producing anisotropic dopes and articles thereof from benzoic acid derivative polymers
US4160755A · kind A · utility
4Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1978 |
| Grant date | Jul 10, 1979 |
| Priority date | — |
| Expiry date | Jan 23, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Anisotropic dopes having a polymer content of at least about 20% by weight of the dope are provided. The dope may be spun into fibers, extruded as films or utilized as a fracturing agent in subterranean formations. The preparation of the dope involves dissolving a polymer selected from the group consisting of polyacryloyloxybenzoic acid, polymethacryloyloxybenzoic acid, polyacryloylaminobenzoic acid, polymethacryloylaminobenzoic acid, and mixtures thereof in an aqueous solution containing a compound selected from the group consisting of Group I metal compounds and compounds containing a protonated amine group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.