Process for producing biphenylene sulfide polymer
US5037951A · kind A · utility
0Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Sep 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/0227
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved process for producing biphenylene sulfide comprising reacting difluorobiphenyl with an alkali metal sulfide in a polar organic compound. The resulting polymer has a high melting point and fiber composites formed therefrom have excellent mechanical properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.