发明名称 |
Magnetic recording medium |
摘要 |
A magnetic recording medium is provided which satisfies electromagnetic conversion characteristics and typical physical properties such as bonding strength, repeated-passage stability, still-playback characteristics, etc. without unfavorably affecting the surface smoothness. The binder in the magnetic coating contains in combination specific proportions of three components, a polyurethane resin, an epoxy resin, and a nitrocellulose whose protective ingredient has been replaced by a vinyl chloride-vinyl acetate copolymer is used as a resin binder in magnetic coating material together with a polyisocyanate curing agent.
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申请公布号 |
US4357391(A) |
申请公布日期 |
1982.11.02 |
申请号 |
US19800151472 |
申请日期 |
1980.05.19 |
申请人 |
TDK ELECTRONICS CO., LTD. |
发明人 |
HOSAKA, AKIHIKO;OKUYAMA, KIYOTAKA |
分类号 |
C08L75/04;C09D5/23;G11B5/702;(IPC1-7):G11B5/70 |
主分类号 |
C08L75/04 |
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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