发明名称 METODO DE FABRICACION DE PELICULAS DE CAPAS MULTIPLES Y ES- TIRADAS DE POLIPROPILENO
摘要 <p>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.</p>
申请公布号 ES545511(D0) 申请公布日期 1986.08.01
申请号 ES20110005455 申请日期 1985.07.12
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):C08J5/18;C08F10/06 主分类号 B32B27/00
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