发明授权
- 专利标题: Magnetic recording medium using a fatty acid ester lubricant wherein the alcohol component is branched at the number one carbon position
- 专利标题(中): 使用脂肪酸酯润滑剂的磁记录介质,其中醇组分在第一碳位分支
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申请号: US183875申请日: 1988-04-20
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公开(公告)号: US5030521A公开(公告)日: 1991-07-09
- 发明人: Yasuo Nishikawa , Takao Ohya , Hajime Miyatsuka
- 申请人: Yasuo Nishikawa , Takao Ohya , Hajime Miyatsuka
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX62-96805 19870420
- 主分类号: G11B5/708
- IPC分类号: G11B5/708 ; C09D5/23 ; C09D127/04 ; C09D127/06 ; C09D131/04 ; G11B5/702 ; G11B5/71 ; G11B5/72 ; G11B5/725
摘要:
A magnetic recording medium comprises a nonmagnetic support and a magnetic recording layer containing a ferromagnetic powder which is provided on the support. The magnetic recording layer contains a binder resin having a acid residue or a salt thereof and a fatty acid ester compound having the formula (I): ##STR1## wherein R is a hydrocarbon group having 11-21 carbon atoms, R.sup.1 is hydrogen atom or a hydrocarbon group having 1-3 carbon atoms, and R.sup.2 and R.sup.3 are the same or different and each is a hydrocarbon group having 1-8 carbon atoms. The total number of carbon atoms contained in R.sup.1, R.sup.2 and R.sup.3 being not less than 3 carbon atoms. Alternatively, the fatty acid ester can be coated on the magnetic layer.
公开/授权文献
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