发明授权
US5597887A Branched polycarbonate preforms, blow moldable polycarbonate and method
for making
失效
分支聚碳酸酯预制件，可吹塑聚碳酸酯和制造方法
- 专利标题： Branched polycarbonate preforms, blow moldable polycarbonate and method for making
- 专利标题（中）： 分支聚碳酸酯预制件，可吹塑聚碳酸酯和制造方法
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申请号： US501898申请日： 1995-08-09
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公开(公告)号： US5597887A公开(公告)日： 1997-01-28
- 发明人: Joseph A. King, Jr. , Patrick J. McCloskey , Alice M. Colley , David M. Dardaris
- 申请人： Joseph A. King, Jr. , Patrick J. McCloskey , Alice M. Colley , David M. Dardaris
- 申请人地址： NY Schenectady
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： NY Schenectady
- 主分类号： C08G64/04
- IPC分类号： C08G64/04 ; C08G64/00 ; C08G64/14 ; C08G64/18 ; C08G64/20 ; C08G64/30 ; C08G64/42
摘要：
Blow moldable polycarbonate is produced by first producing a polycarbonate preform by a melt transesterification process. The polycarbonate preform comprises 2.1 to 10 mole percent polyfunctional branching agent, based on the total moles of polycarbonate in the polycarbonate preform. The polycarbonate preform is then melt equilibrated with a second polycarbonate to produce a blow moldable grade.
公开/授权文献
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