发明授权
US4906499A High density information record medium comprising a polymer material
having a lubricant uniformly dispersed therein
失效
高密度信息记录介质包括具有均匀分散在其中的润滑剂的聚合物材料
- 专利标题： High density information record medium comprising a polymer material having a lubricant uniformly dispersed therein
- 专利标题（中）： 高密度信息记录介质包括具有均匀分散在其中的润滑剂的聚合物材料
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申请号： US219878申请日： 1988-07-05
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公开(公告)号： US4906499A公开(公告)日： 1990-03-06
- 发明人: Toshiaki Hamaguchi , Kazuhira Namikawa , Toshio Akai , Mutsuaki Nakamura , Akio Kuroda , Akio Hata , Noriki Fujii
- 申请人： Toshiaki Hamaguchi , Kazuhira Namikawa , Toshio Akai , Mutsuaki Nakamura , Akio Kuroda , Akio Hata , Noriki Fujii
- 申请人地址： JPX Yokoyama JPX Osaka
- 专利权人： Victor Company of Japan, Ltd.,Tokuyama Sekisui Industry Corporation, Limited
- 当前专利权人： Victor Company of Japan, Ltd.,Tokuyama Sekisui Industry Corporation, Limited
- 当前专利权人地址： JPX Yokoyama JPX Osaka
- 优先权： JPX59-230246 19841102
- 主分类号： G11B9/06
- IPC分类号： G11B9/06
摘要：
An information signal record medium of an electrostatic capacitance type in which a signal information is recorded as geometric variations is described. The medium is made of a conductive resin composition which comprises a vinyl chloride resin and 5 to 30 parts by weight of conductive particles based on 100 parts by weight of the vinyl chloride resin. The vinyl chloride resin is obtained by polymerizing at least one monomer for the vinyl chloride resin in which from 0.2 to 1 parts by weight of a lubricant per 100 parts by weight of the vinyl chloride resin is dissolved.
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