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发明公开
CN105315533A 聚烯烃系多层复合多孔膜的制造方法 无效 - 撤回 转让

聚烯烃系多层复合多孔膜的制造方法
摘要：
本发明提供一种聚烯烃系多层复合多孔膜的制造方法，其中，包括：a)将包含聚烯烃树脂与稀释剂的组合物成型为片材的步骤；b)拉伸所述片材及提取稀释剂来制造膜的步骤；c)将所述制造的膜进行热处理的步骤；及d)在经过所述热处理的膜的一面或两面涂布含耐热性树脂的涂布液的步骤；所述c)步骤及d)步骤是连续实施的，从而不仅能够实现优异的机械强度及透过率，同时能够实现低的热收缩率。
摘要（英）：

Provided is a manufacturing method of a polyolefin-based multilayer composite porous film, including: a) forming a composition including a polyolefin resin and diluent to a sheet; b) stretching the sheet and extracting the diluent to manufacture a film; c) performing heat-treatment on the manufactured film; and d) coating one surface or both surfaces of the heat-treated film with a coating solution containing a heat resistant resin, wherein step c) and step d) are continuously performed.

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