发明名称 |
OPTICAL QUALITY COPOLYCARBONATES CONTAINING POLYOXYALKYLENE CARBONATE UNITS |
摘要 |
<p>Copolycarbonates comprise structural units derived from a bisphenol such as bisphenol A, a spiro(bis)indane bisphenol such as 6,6'-dihdyroxy-3,3,3',3'-tetramethyl-1,1'-spiro(bis)indane and a polyoxyalkylene glycol such as polyethylene glycol. These copolycarbonates have high processability and are expected to have low birefringence. They are useful for the fabrication of optical disks.</p> |
申请公布号 |
EP1100841(A1) |
申请公布日期 |
2001.05.23 |
申请号 |
EP19990928585 |
申请日期 |
1999.06.10 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
CHATTERJEE, GAUTAM;KING, JOSEPH, ANTHONY, JR.;LEGRAND, DONALD, GEORGE;VARADARAJAN, GODAVARTHI, SATYANARAYANA |
分类号 |
C08G64/16;C08G64/18;C08G64/30;G11B7/253;(IPC1-7):C08G64/18 |
主分类号 |
C08G64/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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