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71. 发明专利

JPH02242855A ELECTROCONDUCTIVE SILICONE RUBBER COMPOSITION AND ELECTROCONDUCTIVE SILICONE RUBBER MOLDED ARTICLE USING THE SAME COMPOSITION 失效
公开(公告)号：JPH02242855A
公开(公告)日：1990-09-27
申请号：JP6448489
申请日：1989-03-16
申请人： SHINETSU CHEMICAL CO
发明人： INOUE YOSHIO , FUKUDA TAKESHI
IPC分类号： B29C71/02 , C08K3/04 , C08K5/01 , C08L83/04 , C08L83/07
摘要： PURPOSE:To obtain an electroconductive silicone rubber composition having excellent molding and conductive properties, free from trouble due to low- molecular silicone and suitable for conductive component in precision component by blending a specific diorganopolysiloxane with a specific amount of an electroconductive carbon black, etc. CONSTITUTION:(A) 100pts.wt. diorganopolysiloxane expressed by the formula [R is (substituted) monovalent hydrocarbon; a is 1.98-2.02], containing >=2 alkenyl groups in one molecule and being

72. 发明专利

JPH02102263A CONDUCTIVE SILICONE RUBBER COMPOSITION AND CURED PRODUCT 失效
公开(公告)号：JPH02102263A
公开(公告)日：1990-04-13
申请号：JP25556188
申请日：1988-10-11
申请人： SHINETSU CHEMICAL CO
发明人： FUKUDA TAKESHI , YOSHIDA KUNIHIKO
IPC分类号： C08K3/04 , C08L83/04 , H01B1/24
摘要： PURPOSE:To obtain the title composition which can give a cured product of excellent moldability, vulcanizability, high conductivity, low hardness and excellent rubberlike elasticity by mixing a diorganopolysiloxane with spherical silicone elastomer particles, conductive carbon black and a curing agent. CONSTITUTION:A conductive silicone rubber composition is obtained by mixing a diorganopolysiloxane of the formula [wherein R is a (substituted) monovalent hydrocarbon group, and n is 1.95-2.05] with spherical silicone elastomer particles of a mean particle diameter of 0.1-100mum, conductive carbon black and a curing agent. This composition can give a highly conductive cured silicone product excellent in properties such as heat resistance, low-temperature resistance and weathering resistance and good in moldability, vulcanizability and rubberlike elasticity.

73. 发明专利

JPS63150350A SILICONE RUBBER COMPOSITION 失效
公开(公告)号：JPS63150350A
公开(公告)日：1988-06-23
申请号：JP29611486
申请日：1986-12-12
申请人： SHINETSU CHEMICAL CO
发明人： ITO KUNIO , IMAI SEI , FUKUDA TAKESHI
IPC分类号： C08K3/36 , C08K5/02 , C08K5/06 , C08K5/103 , C08K5/54 , C08L83/04
摘要： PURPOSE:To provide the title compsn. which has excellent elongation and flexural fatigue properties and is useful for dynamic use such as rubber contact, etc., in electronic calculators, touch-tone telephone sets, etc., by blending a specified organopolysiloxane with reinforcing silica and a fluorinated org. compd. CONSTITUTION:100pts.wt. organopolysiloxane (A) of formula I [wherein R is a (substd.)monovalent hydrocarbon group; a=1.90-2.05], pref. a raw rubber having an average degree of polymn. of not lower than 3,000, is blended with 10-100pts.wt. reinforcing silica (B) having a specific surface area of not lower than 50m /g and pref. a treated surface (e.g., fumed silica) and 0.05-20pts.wt. fluorinated org. compd. (C) which is composed of a low polymer of a fluoromonomer, is liquid at room temp. or wax having an m.p. of not higher than 100 deg.C and selected from the group consisting of organopolysiloxanes having a 3,3,3-trifluoropropyl group, chlorotrifluoroethylene polymers of formula II (wherein l is 4-12), perfluoropolyether compds. of formula III (wherein m is 2-100), perfluoroalkyl compds. of formula IV (wherein Rf is a perfluoroalkyl; n is 2-100) and organopolysiloxane having perfluoro groups, represented by formula V (wherein x is 2-200; y is 0-1,000).

74. 发明专利

JPS61188439A RUBBER COMPOSITION 失效
公开(公告)号：JPS61188439A
公开(公告)日：1986-08-22
申请号：JP2990185
申请日：1985-02-18
申请人： SHINETSU CHEMICAL CO
发明人： NAKAMURA TSUTOMU , FUKUDA TAKESHI
IPC分类号： C08L23/00 , C08K3/18 , C08K3/22 , C08K5/17 , C08K13/02 , C08L7/00 , C08L9/02 , C08L21/00 , C08L23/08 , C08L23/16 , C08L23/22 , C08L31/04 , C08L33/00 , C08L33/02 , C08L83/04 , C08L83/08 , C08L87/00 , C08L101/00
摘要： PURPOSE:To provide a rubber compsn. which has excellent heat resistance and little causes staining of a mold, consisting of a synthetic polyolefin rubber or a mixture thereof with an organopolysiloxane, an antioxidant and calcium oxide. CONSTITUTION:0.1-10pts.wt. antioxidant (e.g. N,N'-diphenylethylenediamine), 1-30pts.wt. calcium oxide having an average particle size of 2mu or below and optionally, additives such as reinforcing agent (e.g. silica), extender, etc., are kneaded with 100pts.wt. synthetic polyolefin rubber (e.g. ethylene/propylene/diene copolymer) or mixture thereof with 1-70wt% organopolysiloxane of the formula [wherein R is (cyclo)alkyl, alkenyl, aryl, etc., l, m, n, k are each 0 or an integer]. If desired, an org. peroxide or a vulcanizing agent such sulfur or sulfur- contg. compd. is added thereto. The mixture is molded to obtain a cured molding.

75. 发明专利

JPS56106303A CONDUCTIVE RUBBER MOLDED ARTICLE 失效
公开(公告)号：JPS56106303A
公开(公告)日：1981-08-24
申请号：JP842880
申请日：1980-01-28
申请人： SHINETSU CHEMICAL CO
发明人： FUKUDA TAKESHI , YUMOTO MEGUMI
IPC分类号： H01B5/14 , H01B1/20 , H01B1/24

76. 发明专利

JPS5695930A PRESERVATION METHOD OF SWOLLEN MOLDED ARTICLE 失效
公开(公告)号：JPS5695930A
公开(公告)日：1981-08-03
申请号：JP17384079
申请日：1979-12-28
申请人： SHINETSU CHEMICAL CO
发明人： FUKUDA TAKESHI , KUGA TADAATSU
IPC分类号： B29C71/00 , B29C31/00 , B29D1/00 , C08J7/02
摘要： PURPOSE:To preserve stably a swollen molded article over a long period of time, by a method wherein a molded article composed of a rubber or a resin is contacted with an org. solvent having affinity with the molded article to swell the molded article, and the resulting swollen molded article is immersed in a preservation liquid which does not have affinity with the article to preserve the article. CONSTITUTION:A molded article obtd. from natural rubber, silicone rubber or polyvinyl chloride is contacted with an org. solvent (e.g. Freon 22 or hexamethyldisiloxane) having affinity with the molded article to swell the molded article in order to produce an original from-restoring molded article (e.g. cold shrinking tube). Then the resulting molded article is immersed in a preservation liquid (e.g. water or a saturated soln. of ethyl acetate) which does not have affinity with the molded article and the org. solvent to preserve the article, whereby the form-restoring function can be preserved safely and stably over a long period of time.

77. 发明专利

JPS56145A METHOD OF ADHERING SILICONE RUBBER MOLDED PRODUCT TO SUPPORTING BODY 失效
公开(公告)号：JPS56145A
公开(公告)日：1981-01-06
申请号：JP7644379
申请日：1979-06-18
申请人： SHINETSU CHEMICAL CO
发明人： FUKUDA TAKESHI , TSUCHIDA TOMIYOSHI
IPC分类号： B29C65/00 , B29C55/00 , B29C63/00 , B29C63/18 , B29C65/56 , C08J5/12
摘要： PURPOSE:To easily adhere a molded product firmly to a supporting body and also to improve a working efficiency, by a method wherein a silicone rubber molded product is swelled by bringing it into contact with a chlorinated hydrocarbon solvent, and is then mated with or inserted into a supporting body. CONSTITUTION:A covering molded product made of an ordinary silicone rubber containing no thermal contractive component is brought into contact with a chlorous hydrocarbon solvent for swelling, and is then matched with or inserted into a supporting object. The silicone rubber molded product is adhered firmly to the supporting object by evaporative-volatilizing the solvent. Dimethyl polysiloxane, methylvinyl polysiloxane or the like can be used as the silicone rubber. Methylene chloride, 1,1,1-trichloroethane, trichloroethylene or the like is available as the chlorous hydrocarbon solvent, and methyl chloride and 1,1,1-trichloroethane are most suitable for said solvent in terms of a high fire retardance and a less toxicity.

78. 发明专利

JPS53102949A ELASTOMER COMPOSITION 失效
公开(公告)号：JPS53102949A
公开(公告)日：1978-09-07
申请号：JP1786577
申请日：1977-02-21
申请人： SHINETSU CHEMICAL CO
发明人： ITOU KUNIO , FUKUDA TAKESHI , OOSHIMA TOSHIMICHI
IPC分类号： C08L23/00 , C08J3/24 , C08L7/00 , C08L21/00 , C08L23/16 , C08L23/18 , C08L83/00 , C08L83/04 , C08L83/08 , C08L101/00
摘要： PURPOSE:To provide an elastomer composition having excellent releasability, heat resistance, oil resistance, solvent resistance, mechanical properties and electric properties, containing an ethylene-propylene copolymer elastomer, an organopolysiloxane having mercaptoalkyl group, and a filler.

79. 发明专利

JPS5150353A 失效
公开(公告)号：JPS5150353A
公开(公告)日：1976-05-01
申请号：JP12409574
申请日：1974-10-28
申请人： SHINETSU CHEMICAL CO
发明人： ITO KUNIO , KUGA TADAATSU , FUKUDA TAKESHI
IPC分类号： C08L83/00 , C08L83/04

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