| 发明名称 |
Optically isotropic polycarbonate films and a method for the production thereof |
| 摘要 |
Injection-molding materials comprised of polycarbonate can be processed into optically isotropic films in a chill roll extrusion method. The optically isotropic films are used as covering films for protecting data carriers (CD-ROMS) from becoming scratched, or they are used as supporting materials for the information layer.
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| 申请公布号 |
US6613264(B1) |
申请公布日期 |
2003.09.02 |
| 申请号 |
US20010744970 |
申请日期 |
2001.02.14 |
| 申请人 |
ROEHM GMBH & CO. KG |
发明人 |
NUMRICH UWE;HOFMANN KLAUS;EMERSON ROGER HUGH;PFAFF THOMAS;MEIER-KAISER MICHAEL |
| 分类号 |
B29C47/88;C08J5/18;C08L69/00;(IPC1-7):B29D0/00;B29C33/40;B32B27/36;B32B7/02;C09K19/00 |
主分类号 |
B29C47/88 |
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