发明名称 |
Process for producing oriented composite polyolefin resin films |
摘要 |
A process for producing an oriented composite polyolefin resin film which comprises melt-laminating a polyolefin resin sheet for a paper-like layer on at least one surface of a monoaxially stretched polyolefin resin sheet for a substrate layer, and then stretching the resulting laminated sheet in a direction perpendicular to said monoaxially stretched direction. The polyolefin resin sheet for the substrate layer is a sheet of composite structure prepared by melt-extruding the specific compositions (A), (B), and (C) through a co-extrusion die in such a manner that a layer composed of the thermoplastic resin composition (A) is laminated on one surface of an intermediate layer composed of the polyolefin composition (B) containing a filler and a layer composed of the thermoplastic resin composition (C) is laminated on the other surface of the intermediate layer. Said polyolefin resin sheet for the paper-like layer is composed of a specific polyolefin composition (D) containing a filler.
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申请公布号 |
US4472227(A) |
申请公布日期 |
1984.09.18 |
申请号 |
US19820374648 |
申请日期 |
1982.05.04 |
申请人 |
OJI YUKA GOSEISHI KABUSHIKI KAISHA |
发明人 |
TOYODA, TAKASHI;OHBA, YOZO;SHIRAI, KANJI;TAKAGI, AKIRA;YAMANAKA, MASAAKI |
分类号 |
B29C55/14;B29C49/00;B29C55/00;B29C55/02;B29K23/00;B29L9/00;B32B27/20;B32B27/32;B32B37/00;C08J5/18;(IPC1-7):B29D7/02 |
主分类号 |
B29C55/14 |
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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