发明公开
EP0569196A1 High gas barrier co-extruded multilayer films
失效
Koextrudierte Mehrschichtfolie mit hoherGasundurchlässigkeit。
- 专利标题： High gas barrier co-extruded multilayer films
- 专利标题（中）： Koextrudierte Mehrschichtfolie mit hoherGasundurchlässigkeit。
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申请号： EP93303385.4申请日： 1993-04-29
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公开(公告)号： EP0569196A1公开(公告)日： 1993-11-10
- 发明人: La Fleur, Edward Ewart , Work, William James
- 申请人： ROHM AND HAAS COMPANY
- 申请人地址： Independence Mall West Philadelphia Pennsylvania 19105 US
- 专利权人： ROHM AND HAAS COMPANY
- 当前专利权人： ROHM AND HAAS COMPANY
- 当前专利权人地址： Independence Mall West Philadelphia Pennsylvania 19105 US
- 代理机构： Angell, David Whilton
- 优先权： US878099 19920504
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; C08L29/04 ; C08J11/06
摘要：
By addition of methacrylate/unsaturated acid and/or vinyl amide copolymers, poly(vinyl alcohol) can be melt-processed and co-extruded with structural polymers like poly(ethylene terephthalate) to form multilayer films and objects with good adhesion between the components and good barrier properties. The films and objects can be separated and re-used by dissolution in water of the poly(vinyl alcohol)/methacrylate polymer blends and recovery of the structural polymer.
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