发明名称 |
MAGNETIC RECORDING MEDIUM |
摘要 |
Disclosed is a magnetic recording medium having a magnetic layer comprising a vinyl chloride copolymer as a binder and a magnetic powder and formed on a non-magnetic support. The vinyl chloride copolymer contains a hydroxyl group and a quaternary ammonium salt, wherein the hydroxyl group is derived from a monoallyl or monomethallyl ether of a polyhydroxyl compound, or a monoallyl or monomethallyl thioether of a polyhydroxyl compound. The vinyl chloride copolymer may further contain a hydrophilic group derived from at least one monomer which is selected from carboxylic acids, sulfur-containing acids, phosphorus-containing acids and salts thereof.
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申请公布号 |
US5064730(A) |
申请公布日期 |
1991.11.12 |
申请号 |
US19900480444 |
申请日期 |
1990.02.15 |
申请人 |
NIPPON ZEON CO., LTD. |
发明人 |
TAKANO, FUMIO;NAKAMURA, EITARO |
分类号 |
C08F214/06;C09D5/23;C09D127/04;C09D127/06;C09D175/00;C09D175/04;G11B5/702 |
主分类号 |
C08F214/06 |
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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