发明授权
- 专利标题： Thin LCP film process
- 专利标题（中）： 薄LCP薄膜工艺
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申请号： US412397申请日： 1995-03-28
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公开(公告)号： US5789042A公开(公告)日： 1998-08-04
- 发明人: Randy D. Jester , John A. Penoyer
- 申请人： Randy D. Jester , John A. Penoyer
- 申请人地址： NJ Warren
- 专利权人： Hoechst Celanese Corporation
- 当前专利权人： Hoechst Celanese Corporation
- 当前专利权人地址： NJ Warren
- 主分类号： B29C47/20
- IPC分类号： B29C47/20 ; B29C47/00 ; B29C55/02 ; B29C55/24 ; B29D7/01 ; B29L7/00 ; B29L9/00 ; B23B9/00
摘要：
A process for producing LCP films that have improved tear resistance, improved balance of physical properties, and relatively wrinkle-free surfaces. An annular co-extrusion die is used to line the LCP with one or more surface layers of a nonadherent polymer before the LCP becomes shear oriented. The multi-layer tube formed by the co-extrusion is sealed, stretched and cooled by passing it over a sizing mandrel. The tube is slit open into a flat configuration.
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