发明名称 STRETCHED MULTILAYER POLYPROPYLENE FILMS
摘要 A stretched multilayer polypropylene film is described, comprising a stretched crystalline polypropylene layer and a layer of a composition (Composition B) laminated on at least one side of said polypropylene layer, wherein the composition B comprises a homo- or copolymer composed mainly of ethylene, propylene or butene-1 and having a melting point of 150 DEG C. or less, and a vinylcycloalkane polymer in an amount of 0.05 wt ppm to 10 wt % calculated as a vinylcycloalkane unit. This multilayer film is greatly improved in optical properties such as excellent see-through properties without deteriorating its good heat sealability. Thus it is very useful for wrapping.
申请公布号 SG59389(G) 申请公布日期 1989.12.29
申请号 SG19890000593 申请日期 1989.09.06
申请人 SUMITOMO CHEMICAL COMPANY LIMITED 发明人
分类号 B32B27/00;B32B27/32;C09J7/02;C09J123/08;C09J123/14;(IPC1-7):C09J3/14 主分类号 B32B27/00
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