发明授权
US5153071A Magnetic recording medium wherein the magnetic layer has as the binder
system a vinyl chloride copolymer and a polyether polyurethane resin
which contains a ring structure
失效
磁性记录介质,其中磁性层具有作为粘合剂体系的氯乙烯共聚物和含有环结构的聚醚聚氨酯树脂
- 专利标题: Magnetic recording medium wherein the magnetic layer has as the binder system a vinyl chloride copolymer and a polyether polyurethane resin which contains a ring structure
- 专利标题(中): 磁性记录介质,其中磁性层具有作为粘合剂体系的氯乙烯共聚物和含有环结构的聚醚聚氨酯树脂
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申请号: US707971申请日: 1991-05-23
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公开(公告)号: US5153071A公开(公告)日: 1992-10-06
- 发明人: Hideomi Watanabe , Tsutomu Okita , Hiroshi Hashimoto
- 申请人: Hideomi Watanabe , Tsutomu Okita , Hiroshi Hashimoto
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX63-97382 19880419
- 主分类号: C08L75/08
- IPC分类号: C08L75/08 ; G11B5/702
摘要:
A magnetic recording medium comprising a non-magnetic support having thereon a magnetic layer comprising ferromagnetic particles disposed in a binder, the binder comprising a vinyl chloride copolymer and a polyurethane resin, wherein the polyurethane resin is a polyether polyurethane resin containing a polyether polyol having a ring structure.
公开/授权文献
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