| 发明名称 |
Magnetic recording medium |
| 摘要 |
Magnetic recording medium using water as dispersion medium. The magnetic layer comprises as binder an aqueous dispersion of polyurethane having functional groups capable of salt formation and a magnetic pigment. The volumetric ratio of magnetic pigment to polyurethane in terms of solids content is in the range of 0.7:1 to 1.4:1.
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| 申请公布号 |
US4404253(A) |
申请公布日期 |
1983.09.13 |
| 申请号 |
US19820352208 |
申请日期 |
1982.02.25 |
| 申请人 |
AGFA-GEVAERT AKTIENGESELLSCHAFT |
发明人 |
KOHLER, ROBERT;SCHILFFARTH, KARLCHRISTIAN;KOBER, HEINRICH;NIPPE, BURKHARD |
| 分类号 |
C09D5/23;G11B5/70;G11B5/702;G11B5/73;G11B5/842;(IPC1-7):H01F10/02 |
主分类号 |
C09D5/23 |
| 代理机构 |
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