发明公开
- 专利标题: INFORMATION CARRYING DISCS.
- 专利标题(中): 信息支撑板。
-
申请号: EP81900195申请日: 1980-12-23
-
公开(公告)号: EP0044840A4公开(公告)日: 1982-08-05
- 发明人: LEWIS TERRY W , ANDERSON ROGER J , KERFELD DONALD J , LIEN LARRY A
- 申请人: MINNESOTA MINING & MFG
- 专利权人: MINNESOTA MINING & MFG
- 当前专利权人: MINNESOTA MINING & MFG
- 优先权: US11746680 1980-02-01; US11747880 1980-02-01
- 主分类号: C08G59/02
- IPC分类号: C08G59/02 ; B32B3/30 ; C08G59/00 ; C08G77/14 ; G11B3/20 ; G11B3/70 ; G11B7/24 ; G11B11/00 ; G11B23/00 ; G11B23/18 ; H04N5/76
摘要:
Information carrying discs, such as video discs, tend to be damaged by marking, abrading and grease or solvent. It has been found that transparent polymeric compositions having a specified resistance to abrasion may be used in the formation of information carrying discs.
信息查询