Process for producing poly(arylene sulfide) of reduced alkali metal content
US4814430A · kind A · utility
44Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Apr 24, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/0281
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein is a novel process for producing a substantially linear PAS which contains an electrolytic alkali metal of not more than 50 ppm, shows a melt viscosity of 10 to 300 poise (measured at 310.degree. C. and at a shear rate of 10,000 sec.sup.-1) and is suitable as a resin for packaging electronic parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.