发明授权
- 专利标题: Magnetic recording medium
- 专利标题(中): 磁记录介质
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申请号: US421385申请日: 1982-09-22
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公开(公告)号: US4423115A公开(公告)日: 1983-12-27
- 发明人: Fuminori Tokuda , Yutaka Nakashima
- 申请人: Fuminori Tokuda , Yutaka Nakashima
- 申请人地址: JPX Tokyo
- 专利权人: TDK Electronics Co., Ltd.
- 当前专利权人: TDK Electronics Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX56-168727 19811023; JPX56-168728 19811023
- 主分类号: C08L75/04
- IPC分类号: C08L75/04 ; C09D5/23 ; G11B5/702 ; H01F10/02
摘要:
A magnetic recording medium, consisting of a base coated with a magnetic coating material, uses as a binder a polyurethane resin having a metal sulfonate group, a vinyl chloride-vinyl acetate copolymer containing not less than 8% vinyl alcohol on the basis of the total binder weight, and nitrocellulose, in which magnetic particles are dispersed. The binder may contain an isocyanate compound as a crosslinking agent for added particle dispersibility.