Invention Grant
- Patent Title: Highly-selective polyimide membranes with increased permeance, said membranes consisting of block copolyimides
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Application No.: US15106037Application Date: 2014-12-10
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Publication No.: US10040036B2Publication Date: 2018-08-07
- Inventor: Markus Ungerank , Harald Roegl
- Applicant: Markus Ungerank , Harald Roegl
- Applicant Address: AT Schoerfling am Attersee
- Assignee: EVONIK FIBRES GmbH
- Current Assignee: EVONIK FIBRES GmbH
- Current Assignee Address: AT Schoerfling am Attersee
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP13197853 20131217
- International Application: PCT/EP2014/077118 WO 20141210
- International Announcement: WO2015/091122 WO 20150625
- Main IPC: B01D71/64
- IPC: B01D71/64 ; B01D53/22 ; B01D69/02 ; B01D69/08 ; C08G73/10 ; C08G18/64 ; C08G18/76 ; B01D71/80 ; C08L79/08
Abstract:
The present invention relates to novel block copolyimides for preparing highly selective integrally asymmetrical gas separation membranes of improved permeance, processes for preparing these block copolyimides, membranes prepared from the block copolyimides, and also the use of the block copolyimides and of the membranes prepared therefrom.
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