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31. 发明专利

JPH0551128B2 失效
公开(公告)号：JPH0551128B2
公开(公告)日：1993-07-30
申请号：JP11655487
申请日：1987-05-13
申请人： HITACHI CABLE
发明人： SEKI IKUO , YAGYU HIDEKI
IPC分类号： H01B13/14 , C08L23/00 , C08L23/08 , C08L27/00 , C08L27/14 , C08L27/16 , C08L27/18 , H01B3/44

32. 发明专利

JPH05144325A FOAMING PLASTIC INSULATED WIRE 失效
公开(公告)号：JPH05144325A
公开(公告)日：1993-06-11
申请号：JP32705691
申请日：1991-11-15
申请人： HITACHI CABLE
发明人： SEKI IKUO , YAGYU HIDEKI
IPC分类号： H01B3/30 , C09D5/25 , H01B3/44 , H01B7/02
摘要： PURPOSE:To provide a foaming plastic insulated wire such that the uniformity of the mechanical and electrical characteristics in its longitudinal direction is excellent when its outer diameter is small or when the degree of foaming in its foaming plastic insulating layer is enhanced. CONSTITUTION:The outer periphery of a conductor core wire 1 is coated with the mixture 2 of an amorphous fluorocarbon resin having a glass-transition temperature of 80 to 300 deg.C and a copolymer made from a tetrafluoroethylene and a perfluoroalkylvinyl ethel or a hexafluoropropylene (i.e., PFA or FEP), and subsequently a foaming insulating layer 3 made of the PFA or the FEP is provided outside it.

33. 发明专利

JPH0525079B2 失效
公开(公告)号：JPH0525079B2
公开(公告)日：1993-04-09
申请号：JP22547686
申请日：1986-09-24
申请人： HITACHI CABLE
发明人： KASHIWAZAKI SHIGERU , YAMAMOTO YASUAKI , YAGYU HIDEKI
IPC分类号： G01T1/04 , C08K5/16 , C08L21/00 , C08L101/00

34. 发明专利

JPH0525078B2 失效
公开(公告)号：JPH0525078B2
公开(公告)日：1993-04-09
申请号：JP21667886
申请日：1986-09-12
申请人： HITACHI CABLE
发明人： KASHIWAZAKI SHIGERU , YAMAMOTO YASUAKI , YAGYU HIDEKI
IPC分类号： G01T1/04 , C08K5/16 , C08L21/00 , C08L101/00

35. 发明专利

JPH0547221A FOAMED FLUORINE RESIN INSULATED WIRE 失效
公开(公告)号：JPH0547221A
公开(公告)日：1993-02-26
申请号：JP22651791
申请日：1991-08-12
申请人： HITACHI CABLE
发明人： SEKI IKUO , YAGYU HIDEKI
IPC分类号： B29C47/02 , C08F214/26 , C09D127/12 , C09D127/18 , C09D127/20 , H01B3/44 , H01B7/02 , H01B13/14
摘要： PURPOSE:To provide an extremely highly foamed insulating coat in which a number of fine bubbles are uniformly dispersed by using a one in which an amorphous fluorine resin having a determined glass transition point is mixed to FEP or PFA as the material of foamed fluorine resin. CONSTITUTION:A foamed insulating layer 2 is formed directly on the surface of a conductor 1 or through a fusing layer. The foamed insulating layer 2 is formed of a material in which an amorphous fluororesin having a glass transition point of 80-300 deg.C is mixed with a copolymer of tetrafluoroethylene and hexafluoropropylene or a copolymer of tetrafluoroethylene and perfluoroalkylvinyl ether. The amorphous fluororesin is represented by the formula I. By mixing the amorphous fluororesin having the glass transition point of 80-300 deg.C to FEP or PFA followed by foaming, a thin insulating coat in which a number of fine bubbles are uniformly distributed is formed.

36. 发明专利

JPH0467284B2 失效
公开(公告)号：JPH0467284B2
公开(公告)日：1992-10-27
申请号：JP4704985
申请日：1985-03-08
申请人： HITACHI CABLE
发明人： YAGYU HIDEKI , SEKI IKUO
IPC分类号： H01B3/44 , C08L27/18 , C08L57/00 , H01B7/17 , H01B7/29

37. 发明专利

JPH0467283B2 失效
公开(公告)号：JPH0467283B2
公开(公告)日：1992-10-27
申请号：JP4445785
申请日：1985-03-06
申请人： HITACHI CABLE
发明人： YAGYU HIDEKI , SEKI IKUO
IPC分类号： H01B3/44 , B29C47/00 , H01B13/14 , H01B13/24

38. 发明专利

JPH0445923B2 失效
公开(公告)号：JPH0445923B2
公开(公告)日：1992-07-28
申请号：JP4527885
申请日：1985-03-07
申请人： HITACHI CABLE
发明人： YAGYU HIDEKI , SEKI IKUO , ANDO YOSHUKI
IPC分类号： H01B13/14 , H01B3/44

39. 发明专利

JPH0438088B2 失效
公开(公告)号：JPH0438088B2
公开(公告)日：1992-06-23
申请号：JP8829185
申请日：1985-04-24
申请人： HITACHI CABLE
发明人： YAMAMOTO YASUAKI , YAGYU HIDEKI
IPC分类号： H01B7/17 , B29D23/00 , H01B7/18 , H01B7/29 , H01B7/295

40. 发明专利

JPH04109509A ORGANIC INSULATING MATERIAL 失效
公开(公告)号：JPH04109509A
公开(公告)日：1992-04-10
申请号：JP22870090
申请日：1990-08-29
申请人： HITACHI CABLE
发明人： YAMAZAKI TAKANORI , WATANABE KIYOSHI , YAGYU HIDEKI
IPC分类号： C08J3/24 , C08F8/00 , C08L23/02 , H01B3/44
摘要： PURPOSE:To inhibit the generation of scorch and thereby increase an AC breakdown voltage of an insulating material by using polyolefin crosslinked by the use of 1-(1-t-butyldioxyisopropyl)-4-isopropylbenzene as a crosslinking agent. CONSTITUTION:The compound, 1-(1-t-butyldioxyisopropyl)-4-isopropylbenzene, is expressed by Structural Formula I. An unsaturated dimer of alpha-aromatic substitution-alpha-methylalkene is expressed by Formula II. In Formula II, R represents an aryl group, an alkaryl group or a methyl group, and R and R represent an aryl group or an alkaryl group, wherein the aryl group and the alkaryl group may be substituted with halogen, respectively. The compound expressed by Formula II is the unsaturated dimer such as alpha-methylstylene and ar-chrolo-ar-methyl-alpha-methylstylene. An organic insulating material crosslinks polyolefine by the use of the compound represented by Structural Formula I so that no scorch can be generated in spite of crosslinking middle density polyethylene, high density polyethylene and straight chain type low density or super low density polyethylene each inherently having a high molding temperature in addition to low density polyethylene.

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