发明名称 |
Substrate material for high speed optical discs |
摘要 |
This invention relates to the use of polycarbonate for the production of an optical recording medium in which secure high speed operation, a transcriptability of the pit/groove structure of >85% and sufficient disc flatness can be achieved and the polycarbonate is based on bisphenol A and the polycarbonate contains a release agent in an amount less than 2000 ppm. |
申请公布号 |
US8436128(B2) |
申请公布日期 |
2013.05.07 |
申请号 |
US200913142097 |
申请日期 |
2009.12.12 |
申请人 |
BRUDER FRIEDRICH-KARL;HAESE WILFRIED;OSER RAFAEL;BLASCHKE ULRICH;WONG RAYMOND;ZHANG ICE;WEHRLE JOERG;ROPPEL MICHAEL;BAYER INTELLECTUAL PROPERTY GMBH |
发明人 |
BRUDER FRIEDRICH-KARL;HAESE WILFRIED;OSER RAFAEL;BLASCHKE ULRICH;WONG RAYMOND;ZHANG ICE;WEHRLE JOERG;ROPPEL MICHAEL |
分类号 |
C08G64/00;C08G63/02;G11B7/253 |
主分类号 |
C08G64/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|