- Patent Title: Polyarylether sulfone polymers (P) with a reduced solvent content
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Application No.: US14900328Application Date: 2014-06-26
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Publication No.: US09777119B2Publication Date: 2017-10-03
- Inventor: Martin Weber , Christian Maletzko , Bastiaan Bram Pieter Staal , Joerg Erbes
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP13174348 20130628
- International Application: PCT/EP2014/063519 WO 20140626
- International Announcement: WO2014/207106 WO 20141231
- Main IPC: C08G8/02
- IPC: C08G8/02 ; C08G75/23 ; C08G75/00
Abstract:
The present invention relates to a process for the production of a polyaryl ether sulfone polymer (P), comprising the following steps: (I) provision of a solution (PL) which comprises the polyaryl ether sulfone polymer (P) and comprises an aprotic polar solvent (L), (II) separation of the solution (PL) into droplets, (III) transfer of the droplets into a precipitation bath (F) which comprises water, with the result that the polyaryl ether sulfone polymer (P) is obtained in the form of particles, and (IV) isolation of the polyaryl ether sulfone polymer (P) where the temperature of the solution (PL) in step (II) is in the range from 50 to
Public/Granted literature
- US20160152776A1 POLYARYLETHER SULFONE POLYMERS (P) WITH A REDUCED SOLVENT CONTENT Public/Granted day:2016-06-02
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