发明授权
US5637405A Magnetic recording medium having a backcoat layer containing carbon
black, an organic colorant residue and a silicone compound
失效
具有含有炭黑的背涂层,有机着色剂残留物和硅氧烷化合物的磁记录介质
- 专利标题: Magnetic recording medium having a backcoat layer containing carbon black, an organic colorant residue and a silicone compound
- 专利标题(中): 具有含有炭黑的背涂层,有机着色剂残留物和硅氧烷化合物的磁记录介质
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申请号: US346738申请日: 1994-11-30
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公开(公告)号: US5637405A公开(公告)日: 1997-06-10
- 发明人: Yoshio Hara , Michio Yabuno , Masami Kuwahara
- 申请人: Yoshio Hara , Michio Yabuno , Masami Kuwahara
- 申请人地址: JPX Tokyo
- 专利权人: Toyo Ink Manufacturing Co. Ltd.
- 当前专利权人: Toyo Ink Manufacturing Co. Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX5-303981 19931203
- 主分类号: C09D5/23
- IPC分类号: C09D5/23 ; C09D7/00 ; C09D175/04 ; C09D183/10 ; C09D201/00 ; G11B5/73 ; G11B5/735 ; G11B5/702
摘要:
A magnetic recording medium comprising a magnetic layer, a backing layer, and a support sandwiched between the magnetic layer and the backing layer. The backing layer is made form a coating composition comprising a filler, binder, and a silicone compound represented by the following formula (I): ##STR1## wherein groups A, B, and D each independently represent --CH.sub.3 or a group --X--Y--Z, in which X represents a C1-C11 alkylene or --(CH.sub.2).sub.3 NHCO--, Y represents a specific aliphatic group, alicyclic group, or an aromatic group, and Z represents --OH, m is an integer from 4 to about 150, and n is an integer from 1 to 6,the compound of formula (I) containing at least one --X--Y--Z group, with the ratio of the number of groups --X--Y--Z to m being from 1:3 to 1: about 30.
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