发明名称 |
Verfahren zur Herstellung einer laminierten, porösen Polyolefinfolie |
摘要 |
Disclosed is a method for producing a laminated porous polyolefin film, the method comprising steps of: providing a pair of tools for thermocompression bonding two resin films therebetween, laminating two films each comprising at least one layer made of a polyolefin resin composition comprising 100 parts by weight of a polyolefin resin having a melt index of 0.1 g/10 min or less and 80 to 300 parts by weight of a filler to form a laminated film by piling and thermocompression bonding the films between the thermocompressing portions of the tools, wherein the surface temperature of each thermocompressing portion is adjusted to a temperature higher than the melting point of the polyolefin resin by from 5 to 25 DEG C during the lamination, and drawing the laminated film to form micropores therein, thereby yielding a porous film. <IMAGE> |
申请公布号 |
DE602004006544(T2) |
申请公布日期 |
2008.01.31 |
申请号 |
DE20046006544T |
申请日期 |
2004.03.04 |
申请人 |
SUMITOMO CHEMICAL CO. LTD. |
发明人 |
TAKATA, ATSUHIRO;KURODA, RYUMA;YAMADA, TAKESHI |
分类号 |
B32B27/32;B32B37/00;B29C55/02;B32B37/15 |
主分类号 |
B32B27/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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