Process for stretching polycarbonate filaments and films at temperature at which tangent of dielectric loss angle is maximum |
|||||||
申请号 | US6789360 | 申请日 | 1960-11-08 | 公开(公告)号 | US3005236A | 公开(公告)日 | 1961-10-24 |
申请人 | BAYER AG; | 发明人 | ALFRED REICHLE; HANNS WILSING; | ||||
摘要 | |||||||
权利要求 | |||||||
说明书全文 |