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41. 发明专利

JP2000001578A FLAME-RETARDANT CROSSLINKED OLEFIN RESIN COMPOSITION AND PREPARATION OF FLARE-RETARDANT CROSSLINKED OLEFIN RESIN 失效
公开(公告)号：JP2000001578A
公开(公告)日：2000-01-07
申请号：JP16995098
申请日：1998-06-17
申请人： YAZAKI CORP
发明人： KAWAI TAMIO , OTANI HIROBUMI
IPC分类号： C08J3/24 , C08F8/00 , C08K3/22 , C08K5/101 , C08K5/14 , C08K5/23 , C08K5/54 , C08K5/5415 , C08K5/57 , C08L23/00 , C08L23/02
摘要： PROBLEM TO BE SOLVED: To provide a flame-retardant crosslinked olefin resin compsn. which is flame-retardant, is free of foaming, and is prevented from being degraded in abrasion resistance, durability, and mechanical strengths by compounding an olefin resin with a metal hydrate, a coupling agent, a crosslinker, a catalyst, and a dispersibility- and/or adhesiveness-imparting agent. SOLUTION: This compsn. is prepd. by compounding 100 pts.wt. olefin resin with 80-200 pts.wt. metal hydrate (e.g. magnesium hydroxide), 0.05-20 pts.wt. coupling agent (e.g. vinyltrimethoxysilane), 0.5-10 pts.wt. crosslinker (e.g. an org. peroxide or an azo compd.), 0.5-10 pts.wt. siloxane condensation catalyst (e.g. dibutyltin dilaurate), and 0.05-5 pts.wt. dispersibility- and/or adhesiveness- imparting agent. The olefin resin is selected from among low- or high-density polyethylenes, linear low-density polyethylenes, ethylene copolymers, etc. Examples of the dispersibility- and/or adhesiveness-imparting agent are dipentaerythritol dibasic acid ester and glycerin monostearate.

42. 发明专利

JPH11213771A FIRE RESISTANT WIRE 失效
公开(公告)号：JPH11213771A
公开(公告)日：1999-08-06
申请号：JP1279598
申请日：1998-01-26
申请人： YAZAKI CORP
发明人： KASAHARA HIDEO , KAWAI TAMIO , HARA TOSHIAKI
IPC分类号： H01B3/46 , C08K3/04 , C08K3/34 , C08K3/38 , C08L83/04 , H01B7/295 , H01B7/34
摘要： PROBLEM TO BE SOLVED: To keep excellent fire resistant insulating characteristic and withstand voltage characteristic at a high temperature by covering a linear conductor with a fire resisting rubber layer obtained by blending titanium oxide, a zinc borate and powder mica to silicone rubber followed by cross-linking and a fire resisting reinforcing layer consisting of a composite mica sheet. SOLUTION: A fire resistant rubber layer 3a obtained by crosslinking a rubber composition consisting of at least on of titanium oxide and carbon black, zinc borate and powder mica blended to silicone rubber by use of a peroxide vulcanizing agent and a platinum catalyst, and a fire resisting reinforcing layer 3b consisting of a composite mica sheet are successively provided on the circumference of a linear conduction 2 to form a fire resisting layer 3. This fire resistant wire core is covered with an insulating layer 4, and further covered with a sheath 5 to form a fire resistant wire 1. The titanium oxide or carbon back blended to the fire resisting rubber layer 3a is preferably set to 15 pts.wt. or less to 100 pts.wt. of silicone rubber, and the blending quantity of zinc borate is preferably set to 15 pts.wt. The powder mica has a diameter of 50 m or more, and its blending quantity is preferably set to 250 pts.wt.

43. 发明专利

JPH11213770A FIRE RESISTANT WIRE 失效
公开(公告)号：JPH11213770A
公开(公告)日：1999-08-06
申请号：JP1279498
申请日：1998-01-26
申请人： YAZAKI CORP
发明人： KASAHARA HIDEO , KAWAI TAMIO
IPC分类号： H01B3/46 , H01B7/295 , H01B7/34
摘要： PROBLEM TO BE SOLVED: To keep excellent high-temperature insulating characteristic and withstand voltage characteristic and impart sufficient flexibility by covering a linear conductor with a fire resistant rubber layer consisting of fire resisting rubber obtained by blending powder mica and zinc borate to silicone rubber followed by cross-linking and a fire resistant reinforcing layer consisting of a composite mica sheet. SOLUTION: A fire resisting rubber layer 3a of obtained by cross-linking a rubber composition constituting power mica and zinc borate blended to silicone rubber by use of a peroxide vulcanizing agent and a platinum catalyst and a fire resistant reinforcing layer 3b consisting of a composite mica sheet are successively provided on the circumference of a linear conductor 2 to provide a fire resistant layer 3. This fire resisting core wire is covered with an insulating layer 4, and further covered with a sheath 5 to form a fire resisting wire 1. The powder mica blended to the fire resistant rubber layer 3a has a diameter of 50 μm or more, and the blending quantity is preferably set to 250 pts.wt. or less to 100 pts.wt. of silicone rubber. The blending quantity of zinc borate is preferably set to 15 pts.wt. or less.

44. 发明专利

JPH1145623A FIREPROOF ELECTRIC WIRE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH1145623A
公开(公告)日：1999-02-16
申请号：JP20005297
申请日：1997-07-25
申请人： YAZAKI CORP
发明人： KASAHARA HIDEO , KAWAI TAMIO
IPC分类号： H01B3/04 , H01B3/46 , H01B7/295 , H01B7/34
摘要： PROBLEM TO BE SOLVED: To provide a sufficiently flexible fire resistant wire keeping an excellent withstand voltage characteristics by using a twisted wire conductor in the same manner as by using a single wire conductor. SOLUTION: This fire resistance wire comprises, each on a linear conductor, power mica, especially a fire resistance rubber layer 3a made of silicone rubber filled with powder mica of grain size 50 to 2,500 μm, a mica tape layer 3b made by winding a tape on which flake mica is adhered on a reinforcement base material on the fire resistance rubber layer, an insulation layer 4 made by synthetic resin, and an additionally a sheath 5 is provided as required.

45. 发明专利

JPH09249772A SEMICONDUCTIVE RESIN COMPOSITION 失效
公开(公告)号：JPH09249772A
公开(公告)日：1997-09-22
申请号：JP6315896
申请日：1996-03-19
申请人： YAZAKI CORP
发明人： KAWAI TAMIO , HARA YUICHI
IPC分类号： C08K3/04 , C08L23/00 , C08L87/00 , H01B1/20 , H01B9/02
摘要： PROBLEM TO BE SOLVED: To obtain an easily peelable semiconductive resin composition improved in tree resistance without detriment to heat resistance and mechanical strengths by using a methylphenylsilicone oil. SOLUTION: This composition comprises a methylphenylsilicone oil. This is produced by mixing 100 pts.wt. polyolefin base resin with 10-100 pts.wt. conductivity improver, 5-30 pts.wt. filler and 1-10 pts.wt. methylphenylsilicone oil. The methylphenylsilicone oil should have a viscosity of 1-500mPa/sec. The composition is used to form the semiconductive layer of a crosslinked polyethylene insulated power cable.

46. 发明专利

JPH09129034A WIRE AND CABLE EXCELLENT IN RESIDUAL PROPERTY OF MOUSE PREVENTING AGENT 失效
公开(公告)号：JPH09129034A
公开(公告)日：1997-05-16
申请号：JP14026596
申请日：1996-06-03
申请人： YAZAKI CORP
发明人： KAWAI TAMIO , OTANI HIROBUMI
IPC分类号： C08L27/06 , C08L47/00 , H01B7/17 , H01B7/28
摘要： PROBLEM TO BE SOLVED: To provide a wire and cable excellent in residual property of mouse preventing agent by forming a coating layer of a resin consisting of a specified component composition on the surface of a sheath formed of a resin to having a microcapsulated mouse preventing agent kneaded thereto. SOLUTION: A pluraluty of insulated wires 4 formed of a conductor 2 covered with an insulator 3 are stranded together, and an inclusion 5 is interposed between the insulated wires 4 to form a circular stranded wire. This stranded wire is covered with an insulating sheath 6 formed of a vinyl chloride resin having a microcapsulated mouse preventing agent kneaded thereto. A surface coating layer 7 formed by mixing, to 100 parts by weight of vinyl chloride resin, 45-50 parts by weight of an adipic acid polyester plasticizer, 5-10 parts by weight of epoxidated soybean oil, and 5 parts by weight of barium zinc stabilizer is formed on the surface of the sheath 6. The mouse preventing agent can be thus prevented from being evaporated even when moved within the sheath 6 and leaked to the surface, and a wire and cable 1 capable of keeping mouse preventing effect over a long period can be provided.

47. 发明专利

JPH08295754A FLAME-RETARDANT VINYL CHLORIDE RESIN COMPOSITION 失效
公开(公告)号：JPH08295754A
公开(公告)日：1996-11-12
申请号：JP9930495
申请日：1995-04-25
申请人： YAZAKI CORP
发明人： OTANI HIROBUMI , KAWAI TAMIO
IPC分类号： C08J9/06 , C08K3/00 , C08K5/00 , C08L27/06 , H01B3/44 , H01B7/295
摘要： PURPOSE: To obtain a vinyl chloride resin compsn. which has good physical properties and esp. high overall flame-retardant properties without detriment to the processibility. CONSTITUTION: The compsn. contains a vinyl chloride resin. a plasticizer, and an inorg. flame retardant and further contains 0.1-20 pts.wt. (based on 100 pts.wt. vinyl chloride resin) high-temp. blowing agent comprising a tetrazole compd. When the compsn. is brought into contact with flame, a tough foamed carbide is formed to prevent spread of fire. Further incorporation of a processing aid based on a methacrylic resin is pref.

48. 发明专利

JPH07304891A FLAME-RETARDANT RESIN COMPOSITION 失效
公开(公告)号：JPH07304891A
公开(公告)日：1995-11-21
申请号：JP9759994
申请日：1994-05-11
申请人： YAZAKI CORP
发明人： KAWAI TAMIO , OTANI HIROBUMI
IPC分类号： C08J9/10 , C08L23/02 , C08L87/00 , H01B3/00 , H01B3/44 , H01B7/295 , H01B7/34
摘要： PURPOSE:To obtain a flame-retardant resin composition useful for electrical insulating material, a sheath material, a material for molded articles, etc., having excellent flame retardance and mechanical strength, by blending an olefin resin with a metal hydroxide, a silicone oligomer and a tetrazole-based blowing agent. CONSTITUTION:100 pts.wt. of an olefin resin (e.g. low-pressure low-density polyethylene) is mixed with 50-200 pts.wt. of a metal oxide (e.g. magnesium hydroxide), 0.5-200 pts.wt. of a silicone oligomer containing a hydroxy group and a methoxy group in a main chain and 0.1-20 pts.wt. of a tetrazole-based blowing agent (e.g. 5-phenyl-1,2,3,4-tetrazole) having >=200 deg.C thermal decomposition temperature to give the objective flame-retardant resin composition suitable as an insulating material for electric wire, a sheath material, various kinds of extrusion molded articles and a material for injection molded articles.

49. 发明专利

JPH06325626A WATER TIGHT COMPOUND AND WATERTIGHT WIRE/CABLE 失效
公开(公告)号：JPH06325626A
公开(公告)日：1994-11-25
申请号：JP11507793
申请日：1993-05-18
申请人： YAZAKI CORP
发明人： KAWAI TAMIO , OTANI HIROBUMI
IPC分类号： C08L23/08 , C08L29/00 , C08L33/00 , C08L33/02 , H01B3/44 , H01B7/28 , H01B7/282
摘要： PURPOSE:To uniformly disperse a water absorbing swelling polymer into a base material to prevent the penetration of rainwater and the like by blending a specified amount of starch-polyacrylate family oligomer and the like with ethylene-vinyl chloride polymer and the like blended with a plasticizer if required. CONSTITUTION:As a filler between a conductor and an insulator, 100 pts.wt. at least one composition selected from ethylene-vinyl chloride copolymer, ethylene-acrylate copolymer, vinyl chloride-vinyl acetate-maleic acid copolymer to which a plasticizer, stabilizer, filler, and corrosion inhibitor are added if required is used. 0.3-30 pts.wt. starch-polyacrylate family oligomer and 0.3-20 pts.wt. maleic anhydride modified ethylene oligomer or maleic anhydride modified propylene origomer is blended with 100 pts.wt. composition. Thereby, the affinity is given to the water absorbing swelling polymer. The penetration of rainwater and the like is prevented and watertightness and corrosion inhibiting effect are enhanced.

50. 发明专利

JPH06176631A ELECTRIC WIRE AND CABLE, EXCELLENT IN FLAME RESISTANCE AND ABRASION RESISTANCE USING FLAME RESISTANT OLEFIN RESIN COMPOSITION 失效
公开(公告)号：JPH06176631A
公开(公告)日：1994-06-24
申请号：JP32393592
申请日：1992-12-03
申请人： YAZAKI CORP
发明人： KAWAI TAMIO , OTANI HIROBUMI
IPC分类号： C08K3/22 , C08L23/00 , H01B3/44 , H01B7/295 , H01B7/34
摘要： PURPOSE:To prevent lowering of abrasion resistance, by making an olefin resin composition as a main component, including no halide, and having flame resistance at the same degree or more of that of a conventional polyvinyl chloride resin composition. CONSTITUTION:A flame resistant olefin resin composition, composed by mixing olefin resin with metal hydrate, is primarily coated as an insulator on a conductor. Moreover, a flame resistant olefin resin composition, composed by mixing a flame resistant olefin resin composition, in which no metal hydrate is added, or metal hydrate, less than the added quantity of the metal hydrate of the primary coating, with olefin resin; is secondarily applied the primary coating to constitute an electric wire or cable in two layers.

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