POLYOLEFIN MICROPOROUS MEMBRANE,申请号KR20117019913-传众专利搜索

POLYOLEFIN MICROPOROUS MEMBRANE

申请公布号：KR20110100682(A)

申请号：KR20117019913

申请日期：2005.09.29

申请公布日期：2011.09.14

申请人：

ASAHI KASEI CHEMICALS CORPORATION

发明人：OHASHI MASAHIRO;SOGO HIROSHI

分类号：B32B27/32;B32B27/14;H01M2/16

主分类号：B32B27/32

摘要：Disclosed is a polyolefin microporous membrane including a multilayer film having two or more layers. In this polyolefin microporous membrane, at least one surface layer has a thickness of not less than 0.2 µm but not more than 5 µm and contains inorganic particles, while at least one layer contains a polyethylene and has an air permeability of not less than 50 second/100 cc but not more than 1000 second/100 cc and a puncture strength of not less than 3.0 N/20 µm.