发明名称 |
Magnetic recording medium having a vinyl-chloride resin and a urethane resin binder system each of which resins contain three percent or less of a low molecular weight resin fraction |
摘要 |
A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer comprising ferromagnetic fine powder uniformly dispersed in a binder, wherein the binder comprises at least one resin selected from the group consisting of a vinyl chloride resin and a urethane resin, said resin for the binder has a weight average molecular weight of about from 20,000 to 80,000 and contains a low molecular weight fraction having a weight average molecular weight of about 3,000 or less in an amount of about 3 wt. % or less based on the amount of the resin.
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申请公布号 |
US5153063(A) |
申请公布日期 |
1992.10.06 |
申请号 |
US19910752912 |
申请日期 |
1991.08.28 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
OKITA, TSUTOMU;HANAI, KAZUKO;MATSUFUJI, AKIHIRO;AOKI, NOBUO |
分类号 |
G11B5/702 |
主分类号 |
G11B5/702 |
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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