发明授权
- 专利标题： Branched polycarbonate resins and processes to prepare the same
- 专利标题（中）： 分支聚碳酸酯树脂及其制备方法
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申请号： US11623847申请日： 2007-01-17
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公开(公告)号： US07759456B2公开(公告)日： 2010-07-20
- 发明人: Hans-Peter Brack , Bernd Jansen , Jan Henk Kamps , Edward Kung , Jan Pleun Lens , Hans Looij , Han Vermeulen
- 申请人： Hans-Peter Brack , Bernd Jansen , Jan Henk Kamps , Edward Kung , Jan Pleun Lens , Hans Looij , Han Vermeulen
- 申请人地址： NL Bergen op Zoom
- 专利权人： Sabic Innovative Plastics IP B.V.
- 当前专利权人： Sabic Innovative Plastics IP B.V.
- 当前专利权人地址： NL Bergen op Zoom
- 代理机构： Larson & Anderson, LLC
- 主分类号： C09J3/00
- IPC分类号： C09J3/00 ; C08G64/40 ; C08G64/06 ; C08G64/14
摘要：
A method of increasing the branching and polydispersity of a polycarbonate includes the steps of: (a) including in the polycarbonate at least one species of an alkyl substituted monomer, and (b) treating the polycarbonate at an elevated temperature and for a sufficient time to increase the branching and polydispersity relative to an otherwise equivalent polycarbonate without alkyl substituents.
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