发明授权
US3957573A Process for producing insulating paper where the paper is frictionally
calendered
失效
用于制造绝缘纸的方法，其中纸被摩擦压延
- 专利标题： Process for producing insulating paper where the paper is frictionally calendered
- 专利标题（中）： 用于制造绝缘纸的方法，其中纸被摩擦压延
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申请号： US304882申请日： 1972-11-08
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公开(公告)号： US3957573A公开(公告)日： 1976-05-18
- 发明人: Haruo Miyamoto , Ikuo Igami , Masaru Uehara , Hideo Fujita , Hirotaka Itoh , Zyozi Kan
- 申请人： Haruo Miyamoto , Ikuo Igami , Masaru Uehara , Hideo Fujita , Hirotaka Itoh , Zyozi Kan
- 申请人地址： JA Amagasaki JA Tokyo
- 专利权人： Dainichi-Nippon Cables, Ltd.,Mitsubishi Rayon Co., Ltd.
- 当前专利权人： Dainichi-Nippon Cables, Ltd.,Mitsubishi Rayon Co., Ltd.
- 当前专利权人地址： JA Amagasaki JA Tokyo
- 优先权： JA46-89606 19711109
- 主分类号： H01B13/08
- IPC分类号： H01B13/08 ; D06C15/00 ; D06M10/00 ; D21H13/14 ; H01B3/48 ; H01B3/52 ; D21H5/20 ; D21H5/26
摘要：
Polyolefin fibers containing at least 70% by weight of polypropylene fibers having a denier of at least 0.5 and a birefringence of at least 2.5 .times. 10.sup.-.sup.2 are formed into a sheet. The sheet is then frictionally calendered in the dry state at a frictional ratio of at least 15% and at a temperature in the range from 90.degree.C to 160.degree.C whereby an insulating paper having excellent air-impermeability and oil-resistance is obtained.
公开/授权文献
- US5631708A Automatic phase control apparatus 公开/授权日：1997-05-20