发明授权
- 专利标题： Thin, non-porous polycarbonate films
- 专利标题（中）： 薄的无孔聚碳酸酯薄膜
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申请号： US402430申请日： 1973-10-01
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公开(公告)号： US3975225A公开(公告)日： 1976-08-17
- 发明人: Ludwig Bottenbruch , Gunther Kampf , Volker Serini , Hugo Vernaleken
- 申请人： Ludwig Bottenbruch , Gunther Kampf , Volker Serini , Hugo Vernaleken
- 申请人地址： DT Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DT Leverkusen
- 优先权： DT2248818 19721005
- 主分类号： B01D69/12
- IPC分类号： B01D69/12 ; B01D71/50 ; B29D7/01 ; B32B31/04 ; B29D7/06
摘要：
Non-porous, thin, polycarbonate films and a process for their production. Solutions of polycarbonates in concentrations of less than 5 parts solids per 100 parts solvent are applied to the surface of liquids immiscible, or sparingly miscible with, the solvent for the polycarbonate. The solvent is then evaporated, and the resultant film removed. The films are useful for the separation of gas and liquid mixtures and for electrical insulating purposes.
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