发明授权
US07201964B2 Molded polycarbonate articles having improved optical and processing properties
失效
具有改进的光学和加工性能的模塑聚碳酸酯制品
- 专利标题： Molded polycarbonate articles having improved optical and processing properties
- 专利标题（中）： 具有改进的光学和加工性能的模塑聚碳酸酯制品
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申请号： US10990596申请日： 2004-11-17
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公开(公告)号： US07201964B2公开(公告)日： 2007-04-10
- 发明人: Siegfried Anders , Rüdiger Gorny , Peter Schwarz , Claus Rüdiger , Jürgen Röhner
- 申请人： Siegfried Anders , Rüdiger Gorny , Peter Schwarz , Claus Rüdiger , Jürgen Röhner
- 申请人地址： DE Leverkusen
- 专利权人： Bayer Materialscience AG
- 当前专利权人： Bayer Materialscience AG
- 当前专利权人地址： DE Leverkusen
- 代理商 Joseph C. Gil; Aron Preis
- 优先权： DE10354546 20031121
- 主分类号： B32B27/36
- IPC分类号： B32B27/36
摘要：
A transparent sheet having improved optical properties is disclosed. The sheet that features a deviation angle αε (min) according to DIN 52305-A-AS of ≦2.0 and a refracting power Dε (min) according to DIN 52305-A-AZ of ≦0.05, is prepared by extruding a molding composition comprising linear (co)polycarbonate having weight average molecular weight of 25,000 to 31,000.
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