发明名称 |
MAGNETAUFZEICHNUNGSMEDIUM |
摘要 |
<p>A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer comprising ferromagnetic metal particles dispersed in a binder, wherein said ferromagnetic metal particles have a crystalline size of 250 ANGSTROM or less, and said binder comprises (i) a polyurethane resin having an S-containing group which is at least one member selected from the group consisting of -SH, <IMAGE> said polyurethane resin being one which has been synthesized by the use of a polyhydric alcohol, as a crosslinking agent, having at least three hydroxyl groups and has a branched and crosslinked structure, (ii) a vinyl chloride resin containing an -OH group and a polar group which is at least one member selected from the group consisting of -SO3M, -SO4M, -OPO(OM)2, -PO(OM)2, -COOM, -NR2 and -NR3(+) (wherein M represents a hydrogen atom or an alkali metal, and R represents an alkyl group having up to 4 carbon atoms), and (iii) a polyisocyanate compound.</p> |
申请公布号 |
DE3934476(A1) |
申请公布日期 |
1990.04.19 |
申请号 |
DE19893934476 |
申请日期 |
1989.10.16 |
申请人 |
FUJI PHOTO FILM CO., LTD., MINAMI-ASHIGARA, KANAGAWA, JP |
发明人 |
HASIMOTO, HIROSHI, MINAMI-ASHIGARA, KANAGAWA, JP;OKITA, TSUTOMU;EJIRI, KIYOMI, ODAWARA, KANAGAWA, JP |
分类号 |
C09D5/23;C09D175/00;C09D175/04;G11B5/702;G11B5/706 |
主分类号 |
C09D5/23 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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