发明申请
US20090087687A1 SULFONIC ACID POLYOL COMPOUND, POLYURETHANE RESIN, POLYURETHANE RESIN FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
有权
硫酸多元醇化合物,聚氨酯树脂,磁性记录介质的聚氨酯树脂和磁记录介质
- 专利标题: SULFONIC ACID POLYOL COMPOUND, POLYURETHANE RESIN, POLYURETHANE RESIN FOR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING MEDIUM
- 专利标题(中): 硫酸多元醇化合物,聚氨酯树脂,磁性记录介质的聚氨酯树脂和磁记录介质
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申请号: US12235709申请日: 2008-09-23
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公开(公告)号: US20090087687A1公开(公告)日: 2009-04-02
- 发明人: Kazufumi OMURA , Masahiko Mori , Katsumi Araki , Masataka Yoshizawa
- 申请人: Kazufumi OMURA , Masahiko Mori , Katsumi Araki , Masataka Yoshizawa
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP2007-255614 20070928; JP2007-255639 20070928
- 主分类号: G11B5/706
- IPC分类号: G11B5/706 ; C07C381/00 ; C08L75/04
摘要:
A compound represented by the Formula below is provided.(in Formula (1), X denotes a divalent linking group, R1 and R2 independently denote an alkyl group having 3 or more carbons and having at least one hydroxy group or an aralkyl group having 8 or more carbons and having at least one hydroxy group, the alkyl group and aralkyl group may have a substituent, and M denotes a hydrogen atom or a cation). There is also provided a polyurethane resin obtained by polymerization of a polyisocyanate and a polyol that includes the compound. There is also provided a magnetic recording medium that includes a non-magnetic support and, above the support, at least one magnetic layer including a ferromagnetic powder dispersed in a binder that includes the polyurethane resin. There is also provided a magnetic recording medium that includes a non-magnetic support, above the support at least one non-magnetic layer including a non-magnetic powder dispersed in a binder (1), and, above the non-magnetic layer, at least one magnetic layer having a ferromagnetic powder dispersed in a binder (2), in which binder (1) and/or binder (2) is the polyurethane resin.
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