发明授权
- 专利标题： Method of preparing polycarbonates and polyester carbonates
- 专利标题（中）： 聚碳酸酯和聚酯碳酸酯的制备方法
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申请号： US127918申请日： 1993-09-28
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公开(公告)号： US5357028A公开(公告)日： 1994-10-18
- 发明人: Ralf Pakull , Gerhard Fennhoff , Werner Struver , Jurgen Kirsch
- 申请人： Ralf Pakull , Gerhard Fennhoff , Werner Struver , Jurgen Kirsch
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX4233345 19921005
- 主分类号： C08G63/64
- IPC分类号： C08G63/64 ; C08G64/00 ; C08G64/14 ; C08G64/20 ; C08G64/24 ; C08G64/28
摘要：
A catalytic method for preparing thermoplastic carbonate polymers is disclosed. In the method according to the interfacial polycondensation process or the homogeneous solution process, resins which containing catalytically active groups are used as catalysts. The resulting resins are characterized by their color stability and temperature stability.
公开/授权文献
- US6099029A Side impact and roll over inflatable head protector 公开/授权日：2000-08-08
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