发明授权
- 专利标题: Magnetic recording media
- 专利标题(中): 磁记录媒体
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申请号: US804658申请日: 1991-12-11
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公开(公告)号: US5266408A公开(公告)日: 1993-11-30
- 发明人: Uwe Keppeler , Hermann Dikow , Helmut Auweter , Michael Bobrich , Jochen Rudolph , Gregor Brodt , Albert Kohl , Werner Lenz , Rudolf Suettinger
- 申请人: Uwe Keppeler , Hermann Dikow , Helmut Auweter , Michael Bobrich , Jochen Rudolph , Gregor Brodt , Albert Kohl , Werner Lenz , Rudolf Suettinger
- 申请人地址: DEX Mannheim
- 专利权人: BASF Magnetic GmbH
- 当前专利权人: BASF Magnetic GmbH
- 当前专利权人地址: DEX Mannheim
- 优先权: DEX4039749 19901213
- 主分类号: C08G18/65
- IPC分类号: C08G18/65 ; C08G18/08 ; C08G18/12 ; C09D5/00 ; C09D5/23 ; C09D175/04 ; G11B5/702 ; B32B27/40 ; G11B5/70
摘要:
Magnetic recording media consist of a nonmagnetic substrate and one or more magnetizable layers bonded thereon and based on a polyurethane binder, the binder consisting of not less than 50% by weight of a branched polyurethane elastomer having sulfonate groups and possessing urea groups at the chain ends.
公开/授权文献
- US6044272A Mobile assisted handoff system and method 公开/授权日:2000-03-28