发明公开
EP1231599A1 Magnetic recording medium and magnetic composite particles for magnetic recording medium
审中-公开
磁铁磁铁磁铁磁铁磁铁Aufzeichnungsmittel
- 专利标题： Magnetic recording medium and magnetic composite particles for magnetic recording medium
- 专利标题（中）： 磁铁磁铁磁铁磁铁磁铁Aufzeichnungsmittel
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申请号： EP02250787.5申请日： 2002-02-06
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公开(公告)号： EP1231599A1公开(公告)日： 2002-08-14
- 发明人: Hayashi, Kazuyuki , Iwasaki, Keisuke , Kamigaki, Mamoru , Morii, Hiroko
- 申请人： Toda Kogyo Corporation
- 申请人地址： 1-2, Funairiminami 4-chome, Naka-ku Hiroshima-shi, Hiroshima-ken JP
- 专利权人： Toda Kogyo Corporation
- 当前专利权人： Toda Kogyo Corporation
- 当前专利权人地址： 1-2, Funairiminami 4-chome, Naka-ku Hiroshima-shi, Hiroshima-ken JP
- 代理机构： Woods, Geoffrey Corlett
- 优先权： JP2001031517 20010207
- 主分类号： G11B5/712
- IPC分类号： G11B5/712
摘要：
A magnetic recording medium comprising:
a non-magnetic base film; and
a magnetic recording layer comprising a binder resin and magnetic composite particles which have an average particle diameter of from 0.02 to 0.70 µm and which comprise:
(a) magnetic core particles,
(b) a coating provided on the surface of said magnetic core particles, comprising at least one organosilicon compound selected from:
(1) organosilane compounds obtainable from alkoxysilane compounds, and
(2) polysiloxanes or modified polysiloxanes, and
(c) a phthalocyanine-based pigment coat which is provided on said coating (b) in an amount of 1 to 100 parts by weight per 100 parts by weight of said magnetic core particles (a).
a non-magnetic base film; and
a magnetic recording layer comprising a binder resin and magnetic composite particles which have an average particle diameter of from 0.02 to 0.70 µm and which comprise:
(a) magnetic core particles,
(b) a coating provided on the surface of said magnetic core particles, comprising at least one organosilicon compound selected from:
(1) organosilane compounds obtainable from alkoxysilane compounds, and
(2) polysiloxanes or modified polysiloxanes, and
(c) a phthalocyanine-based pigment coat which is provided on said coating (b) in an amount of 1 to 100 parts by weight per 100 parts by weight of said magnetic core particles (a).
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