Process for preparing poly(arylene sulfide ketone) with water addition
US4812552A · kind A · utility
21Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Apr 15, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process and product produced therefrom for preparing a melt stable, high molecular weight poly(arylene sulfide ketone) from the addition of water to a reaction mixture containing a polyhalobenzophenone and an alkali metal sulfide. The water being present in a molar ratio of about 4.5:1 to about 8:1 with respect to the alkali metal sulfide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.