发明名称 Heat-sealable, polyolefinic multilayer film, process for the production thereof, and the use thereof
摘要 The disclosed heat-sealable, layered film comprises a polyolefinic base layer and at least one outer layer. The outer layer comprises a propylene-olefin copolymer prepared by means of a metallocene catalyst. The film is prepared by coextruding melts corresponding to the individual layers of the film, taking off the coextruded film over a take-off roll whose temperature is between 10 and 90° C., biaxially stretching and then heat-setting the resulting film, and optionally corona- or flame-treating the film, then winding it up in a wind-up unit.
申请公布号 US6558808(B1) 申请公布日期 2003.05.06
申请号 US19950395371 申请日期 1995.02.21
申请人 BASELL POLYOLEFINE GMBH 发明人 DRIES THOMAS;SPALECK WALTER;WINTER ANDREAS
分类号 B32B27/32;B65D65/40;(IPC1-7):B32B27/32 主分类号 B32B27/32
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