Salt byproduct separation during formation of polyarylene sulfide
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United States of America Patent
Stats
-
Apr 10, 2018
Issued Date -
N/A
app pub date -
Aug 1, 2016
filing date -
Sep 25, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Methods of forming a polyarylene sulfide and systems as may be utilized in carrying out the methods are described. Included in the formation method is a filtration process for treatment of a mixture, the mixture including a polyarylene sulfide, a salt byproduct of the polyarylene sulfide formation reaction, and a solvent. The filtration process includes maintaining the downstream side of the filter medium at an increased pressure. The downstream pressure can such that the boiling temperature of the mixture at the downstream pressure can be higher than the temperature at which the polyarylene sulfide is insoluble in the solvent.
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International Classification(s)
- 2016 Application Filing Year
- C08J Class
- 2510 Applications Filed
- 1585 Patents Issued To-Date
- 63.15 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C08J Class
- 40.10 % this patent is cited more than
- 7 Age
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