发明名称 |
PROCESS FOR PRODUCING POROUS FILM |
摘要 |
<p>A process for producing a porous film containing a liquid crystal polyester comprising the following steps (a), (b) and (c) in this order: (a) dispersing 1 to 1,500 parts by weight of a filler, based on 100 parts by weight of a liquid crystal polyester, in a solution in which 100 parts by weight of the liquid crystal polyester is dissolved in a solvent to produce a slurry coating liquid; (b) coating the coating liquid on at least one side of a substrate to form a coating film; and (c) removing the solvent from the coating film, immersing the film in a solvent which does not dissolve the liquid crystal polyester, and drying the film to form a porous film containing a liquid crystal polyester.</p> |
申请公布号 |
EP2157123(A1) |
申请公布日期 |
2010.02.24 |
申请号 |
EP20080752840 |
申请日期 |
2008.05.09 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
SATO, HIROYUKI;OHTOMO, SHINJI;OKAMOTO, SATOSHI;SUZUKI, YUTAKA |
分类号 |
C08J9/28 |
主分类号 |
C08J9/28 |
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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