EP 0682591 A1 19951122 - PROCESS OF MAKING MICROPOROUS PPS MEMBRANES.
Title (en)
PROCESS OF MAKING MICROPOROUS PPS MEMBRANES.
Title (de)
VERFAHREN ZUR HERSTELLUNG VON MIKROPORÖSEN PPS MEMBRANEN.
Title (fr)
PROCEDE DE PRODUCTION DE MEMBRANES PPS POREUSES.
Publication
Application
Priority
- US 9401168 W 19940202
- US 1258493 A 19930203
Abstract (en)
[origin: WO9417974A1] The invention relates to a process for preparing a microporous membrane from an unsulfonated poly(phenylene sulfide) polymer by forming a mixture of an unsulfonated poly(phenylene sulfide) polymer, a crystallizable polymer, and optional plasticizer, heating the resulting mixture, extruding or optionally casting the mixture into a membrane, controlled cooling (quenching) or coagulating the membrane, and leaching the membrane, while optionally drawing the membrane before, during, and/or after leaching.
IPC 1-7
IPC 8 full level
B01D 67/00 (2006.01); B01D 71/66 (2006.01); C08J 9/26 (2006.01)
CPC (source: EP US)
B01D 67/00113 (2022.08 - EP US); B01D 67/0016 (2013.01 - EP US); B01D 67/0027 (2013.01 - EP); B01D 67/003 (2013.01 - EP US); B01D 71/66 (2013.01 - EP US); C08J 9/26 (2013.01 - EP); B01D 2325/04 (2013.01 - EP); C08J 2201/042 (2013.01 - EP); C08J 2201/046 (2013.01 - EP); C08J 2381/04 (2013.01 - EP)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9417974 A1 19940818; CA 2154069 A1 19940818; EP 0682591 A1 19951122; JP H08506375 A 19960709
DOCDB simple family (application)
US 9401168 W 19940202; CA 2154069 A 19940202; EP 94909523 A 19940202; JP 51817594 A 19940202