专利名称：Composite film, process for its manufacture, its u and packaging material consisting of
this film
发明人：ZIMMERMANN, WOLFGANG, DR.,HARREUS, ALBRECHT, DR.
太阳从东方升起申请号：EP80104491.8
申请日：19800730两个人图片
公开号：EP0023701A1
唱脸谱教案公开日：
环境保护的作文>余纯顺>表格去重>可乐鸡翅中
19810211
专利内容由知识产权出版社提供
摘要：A film made from a thermoplastic can be coated with another plastic to give a film composite. The coating can take place on one or both sides. A film composite which compris a polyvinyl alcohol backing film and a polyvinyl acetal coating is particularly suitable for u as a packaging material. The coating is particularly suitable for u as a packaging material. The coating is advantageously achieved by applying a polyvinyl acetal solution to the backing film and subquently removing the solvent. A particularly suitable coating agent is polyvinylbutyral.
申请人：HOECHST AKTIENGESELLSCHAFT
地址：65926 Frankfurt am Main DE小孩怎样变成美人鱼
国籍：DE
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