Method of continuously cleansing polyarylene sulfide
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 22, 2006
Grant Date -
Apr 28, 2005
app pub date -
Nov 29, 2002
filing date -
Dec 3, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A polymerizate slurry obtained through a reaction of an alkali sulfide source and an aromatic dihalide compound in an organic polar solvent and comprising polyarylene sulfide particles, a by-produced alkali metal salt and the polar organic solvent, is continuously contacted countercurrently with a washing liquid, thereby continuously and efficiently recovering washed polyarylene sulfide particles. Furthermore, the by-produced alkali metal salt is removed, and the polar organic solvent is recovered, efficiently.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully