发明授权
- 专利标题： Magnetic paint and magnetic recording medium
- 专利标题（中）： 磁性涂料和磁记录介质
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申请号： US863242申请日： 1992-04-03
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公开(公告)号： US5320769A公开(公告)日： 1994-06-14
- 发明人: Hiroshi Kinoshita , Yasutaka Nakama , Goro Iwamura , Shigeru Komazaki , Masataka Ooka
- 申请人： Hiroshi Kinoshita , Yasutaka Nakama , Goro Iwamura , Shigeru Komazaki , Masataka Ooka
- 申请人地址： JPX Tokyo
- 专利权人： Dainippon Ink and Chemicals, Inc.
- 当前专利权人： Dainippon Ink and Chemicals, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX3-343063 19911225; JPX3-343064 19911225; JPX4-4832 19920114; JPX4-31964 19920219; JPX4-31965 19920219
- 主分类号： G11B5/702
- IPC分类号： G11B5/702
摘要：
A magnetic paint and objects coated with same are disclosed, where the magnetic paint is characterized by comprising, as its essential components, a block copolymer and magnetic powder, said block copolymer having polyurethane and vinyl polymer segments. The magnetic paint of the present invention exhibits good dispersability of the magnetic powder, and good surface smoothness, durability, and wear resistance of the magnetic recording medium. Objects which may be appropriately coated with the magnetic paint of the present invention include high-quality magnetic recording media, such as magnetic tapes, magnetic cards, prepaid cards, magnetic disks and so on.
公开/授权文献
- US4748678A Method of storing and retrieving image data 公开/授权日：1988-05-31
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