Process for preparing poly(arylene sulfide) polymers using waste material
US6281326A · kind A · utility
18Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1993 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is provided for producing a poly(arylene sulfide) polymer which employs waste material comprising poly(arylene sulfide) polymer that is normally discarded or otherwise disposed of, wherein the waste stream is contacted with a polymerization reaction mixture under polymerization conditions. The waste material can optionally contain other components such as cyclic and linear oligomers, inorganic salts, polar organic compounds and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.