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1. 发明授权

US06770234B2 High temperature polyester film extrusion 有权
标题翻译：高温聚酯薄膜挤出
公开(公告)号：US06770234B2
公开(公告)日：2004-08-03
申请号：US09997676
申请日：2001-11-29
申请人： Kevin Paul Osborn , Larry H. McAmish
发明人： Kevin Paul Osborn , Larry H. McAmish
IPC分类号： C08J320
CPC分类号： B32B37/153 , B29C47/0021 , B29C47/02 , C08J5/18 , C08J2367/02 , C08L67/02 , Y10T428/31797 , C08L2666/04
摘要： The present invention is directed to the method of extruding a thermoplastic co-polyester EMA (ethyl methyl acrylate) blended film at temperatures well above the melt temperature of the base thermoplastic co-polyester, the co-polyester/EMA film having enhanced barrier properties. Notably, the present invention contemplates extrusion of co-polyester compounds onto suitable substrates without the need to employ antioxidant compounds in the molten polymer material. A further aspect of the present invention entails a film comprising an EMA and co-polyester thermoplastic admixed with a compatibilizer and extruded at a temperature at least 10% higher than the melt temperature, which in turn provides the co-polyester film with durable adhesive properties in addition to good breathability as measured by moisture vapor transmission rate (MVTR).
摘要翻译：本发明涉及在远高于基础热塑性共聚酯的熔融温度的温度下挤出热塑性共聚酯EMA（丙烯酸乙酯）共混膜的方法，共聚酯/ EMA膜具有增强的阻隔性能。值得注意的是，本发明考虑将共聚酯化合物挤出到合适的基材上，而不需要在熔融聚合物材料中使用抗氧化剂。本发明的另一方面涉及一种膜，其包含与增容剂混合的EMA和共聚酯热塑性塑料，并在比熔融温度高至少10％的温度下挤出，这又提供具有耐久粘合性能的共聚酯膜除了通过湿气透过率（MVTR）测量的良好的透气性。

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