Process for preparing high molecular weight poly(arylene sulfide) polymers using lithium salts
US5929203A · kind A · utility
20Cited by
4References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 23, 1992 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Oct 23, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G75/025
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process is provided for producing a high molecular weight poly(arylene sulfide) polymer employing at least one dihaloaromatic compound, a sulfur source, a polar organic compound, a lithium salt which is soluble in the polar organic compound, and water in an amount less than about 1.75 moles of water per mole of sulfur under polymerization conditions. The pressure and temperature are chosen to allow the volatile reactants to be maintained in liquid form in the reaction mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.