Thermoplastic resin porous film,申请号EP20020008134-传众专利搜索

Thermoplastic resin porous film

申请公布号：EP1249269(A3)

申请号：EP20020008134

申请日期：2002.04.11

申请公布日期：2007.08.15

申请人：

SUMITOMO CHEMICAL COMPANY, LIMITED

发明人：ATSUHIRO,TAKATA;RYUMA,KURODA;TAKESHI,YAMADA

分类号：B01D67/00;C08J9/00;B01D69/02;B01D69/14;B01D71/26;B29C55/00;C08J5/18;H01G9/02;H01M2/16

主分类号：B01D67/00

摘要：A porous thermoplastic resin film (15) has micropores formed from a three-dimensional network made of trunk fibrils extending in one direction, and branch fibrils through which trunk fibrils are connected to one another. Density of branch fibrils is higher than that of trunk fibrils. Average pore diameter and radius of micropores satisfy a predetermined relation. A porous thermoplastic resin film has micropores formed from a three-dimensional network made of trunk fibrils extending in one direction, and branch fibrils through which trunk fibrils are connected to one another. The density of branch fibrils is higher than that of trunk fibrils. Average pore diameter (d) (in Microm) of micropores determined by bubble-point method ASTM F316-86 and radius (r) (in Microm) of micropores determined by mercury porosimetry JIS K1150 satisfy the relationship 1.2 = 2r/d = 1.7.