Treatment of poly(arylene sulfide/sulfone) polymers
US5015702A · kind A · utility
7Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Oct 6, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Poly(arylene sulfide/sulfone) polymers prepared using a sulfur-rich reaction mixture are treated in order to increase melt stability by contacting the poly(arylene sulfide/sulfone) polymer with an acidic solution, followed by contacting the polymer with a soluble zinc compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.