Invention Grant
- Patent Title: Laminated polymicroporous membrane including propylene copolymer and method of producing the same
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Application No.: US14302213Application Date: 2014-06-11
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Publication No.: US09882190B2Publication Date: 2018-01-30
- Inventor: Masahiro Ohashi , Keitaro Ameyama , Yuzuru Sakakibara
- Applicant: Asahi Kasei E-materials Corporation
- Applicant Address: JP Tokyo
- Assignee: Asahi Kasei E-materials Corporation
- Current Assignee: Asahi Kasei E-materials Corporation
- Current Assignee Address: JP Tokyo
- Agency: Morgan, Lewis & Bockius LLP
- Priority: JP2009-054795 20090309; JP2009-064533 20090317; JP2009-280486 20091210; JP2009-280488 20091210; JP2010-021859 20100203; JP2010-022481 20100203
- Main IPC: H01M2/14
- IPC: H01M2/14 ; H01M2/16 ; H01M2/18 ; B29C47/00 ; B29C67/20 ; B32B27/08 ; B32B27/20 ; B32B27/32 ; B32B27/18 ; H01M10/0525 ; H01M10/052 ; B29K23/00 ; B29L31/00

Abstract:
Disclosed is a laminated separator including a first polyolefin microporous layer and a second polyolefin microporous layer which is laminated on the first polyolefin microporous layer and which is different from the first polyolefin microporous layer, wherein at least one of the first microporous layer and the second microporous layer includes an inorganic particle having a primary particle size of 1 nm or more and 80 nm or less.
Public/Granted literature
- US20140329129A1 Laminated Separator, Polyolefin Microporous Membrane, and Separator for Electricity Storage Device Public/Granted day:2014-11-06
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