Patents by Inventor Toshifumi Hirose
Toshifumi Hirose has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7151128Abstract: An object of the present invention is to improve a drying property of paint in application of alkyd paint to the surface of a cured material resulting from the curable composition containing an oxyalkylene polymer having at least one silicon-containing functional group capable of cross-linking by formation of at least one siloxane bond, and to provide a composition that contains an oxyalkylene polymer (A) having at least one silicon-containing functional group capable of cross-linking by formation of at least one siloxane bond and 2,6-di-t-butylhydroxytoluene wherein the content of the above-described 2,6-di-t-butylhydroxytoluene is 350 ppm or less relative to the above-described polymer (A).Type: GrantFiled: May 31, 2002Date of Patent: December 19, 2006Assignee: Kaneka CorporationInventors: Toyohisa Fujimoto, Ayako Yano, Toshifumi Hirose
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Publication number: 20040138398Abstract: An object of the present invention is to improve a drying property of paint in application of alkyd paint to the surface of a cured material resulting from the curable composition containing an oxyalkylene polymer having at least one silicon-containing functional group capable of cross-linking by formation of at least one siloxane bond, and to provide a composition that contains an oxyalkylene polymer (A) having at least one silicon-containing functional group capable of cross-linking by formation of at least one siloxane bond and 2,6-di-t-butylhydroxytoluene wherein the content of the above-described 2,6-di-t-butylhydroxytoluene is 350 ppm or less relative to the above-described polymer (A).Type: ApplicationFiled: November 20, 2003Publication date: July 15, 2004Inventors: Toyohisa Fujimoto, Ayako Yano, Toshifumi Hirose
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Patent number: 5952052Abstract: The present invention has its object to a method for glazing a motor vehicle by direct glazing using a novel curable resin composition. A method for glazing a motor vehicle by direct glazing, which comprises using, as a sealant, a curable resin composition comprising (A) an oxyalkylene polymer having at least one silicon group containing a hydroxyl or hydrolyzable group bound to a silicon atom and capable of crosslinking by silanol condensation reaction, (B) carbon black, and (C) an oxyalkylene polymer not containing a crosslinking group is provided.Type: GrantFiled: August 28, 1998Date of Patent: September 14, 1999Assignee: Kaneka CorporationInventors: Jun Hattori, Toshifumi Hirose, Katsuhiro Ando
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Patent number: 5910555Abstract: A curable resin composition containing an oxyalkylene polymer having at least one silicon-containing reactive group in a molecule, and at least one compound selected from the group consisting of (1) a compound having at least one amino group and at least one trialkylsiloxy group in a molecule and (2) a silylamine derivative having at least one group with a hydroxy or hydrolyzable group bonded to the silicon atom and can be crosslinked through the formation of a siloxane bond, which provides a cured material having good adhesion properties with coatings and less residual tack.Type: GrantFiled: May 14, 1997Date of Patent: June 8, 1999Assignee: Kaneka CorporationInventors: Kazuhiko Ueda, Jun Kotani, Ayako Yano, Toshifumi Hirose
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Patent number: 5889124Abstract: A curable resin composition containing (a) an oxyalkylene polymer which comprises at least one silicon-containing group having at least one hydroxyl or hydrolyzable group bonded to a silicon atom, (b) an epoxy resin, (c) a ketimine compound and (d) a carbonyl compound, which has improved storage stability.Type: GrantFiled: March 4, 1997Date of Patent: March 30, 1999Assignee: Kaneka CorporationInventors: Katsuhiro Ando, Jun Hattori, Toshifumi Hirose
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Patent number: 5691433Abstract: A silicon-containing polymer comprising a structural unit of the formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and represent a monovalent organic group having 1 to 20 carbon atoms, and the benzene ring may have a substituent, which has good heat resistance.Type: GrantFiled: March 28, 1996Date of Patent: November 25, 1997Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Jun Kotani, Manabu Tsumura, Takahisa Iwahara, Toshifumi Hirose
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Patent number: 5631082Abstract: a tape or sheet form pressure-sensitive adhesive material which comprises a substrate which is obtainable by curing a curable resin composition comprising:(A) an organic elastomeric polymer which is liquid at room temperature and has, in a molecule, at least one silicon-containing group to the silicon atom of which at lease one hydroxyl group or hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond,(B) a curing catalystand(C) optionally a tackifier resin and a pressure-sensitive adhesive layer laminated on said substrate, which has good flexibility and increased adhesive force such as adhesive strength under shear and peel strength.Type: GrantFiled: August 30, 1993Date of Patent: May 20, 1997Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Toshifumi Hirose, Katsuhiko Isayama
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Patent number: 5623030Abstract: A curable composition providing a cured product having a silicon type interpenetrating polymer network, which comprises (A) a silsesquioxane ladder polymer, (B) a silicon compound having at least two SiH groups per molecule, (C) a silicon compound having at least two vinylsilyl groups per molecule and (D) a neutral platinum catalyst; and a process for producing a molded article comprising heating the curable composition under a controlled temperature for synchronously causing hydrolysis and condensation of the alkoxysilyl group and/or silanol group and hydrosilylation.Type: GrantFiled: November 29, 1995Date of Patent: April 22, 1997Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Manabu Tsumura, Masafumi Hiraishi, Takahisa Iwahara, Toshifumi Hirose
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Patent number: 5504235Abstract: When a polysiloxane or siloxane is contacted with a mixture which comprises an orthoester, a compound having an active hydrogen-containing group and an acid catalyst, it is easily decomposed even at room temperature to provide a silicon compound having a lower molecular weight such as an alkoxysilane.Type: GrantFiled: June 7, 1995Date of Patent: April 2, 1996Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Toshifumi Hirose, Ryotaro Tsuji, Katsuya Ouchi
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Patent number: 5391797Abstract: A process for preparing an alkoxysilane of the general formula:R.sup.3.sub.b SiH.sub.c (OR.sup.2).sub.4-(b+c)in which R.sup.2 represents a substituted or unsubstituted alkyl group, R.sup.3 represents a monovalent substituted or unsubstituted hydrocarbon group, b is 1, 2 or 3, and c is 0, 1, or 2, having the step of:reacting an alkoxysilane of the general formula:R.sup.1.sub.a Si(OR.sup.2).sub.4-awherein R.sup.1 represents a monovalent substituted or unsubstituted hydrocarbon group, R.sup.2 is the same as defined above, and a is 0, 1, 2 or 3, with a polysiloxane in the presence of a catalyst containing an aluminum alkoxide, a zirconium alkoxide or a zirconium chelate to obtain the alkoxysilane, which process suppresses side reactions to provide the intended compound which is free from halogen compounds in a high yield.Type: GrantFiled: March 31, 1994Date of Patent: February 21, 1995Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Toshifumi Hirose, Katsuya Ouchi, Hiroshi Awaji
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Patent number: 5063270Abstract: A curable composition. The composition contains(A) 100 parts of an oxyalkylene polymer having at least one silicon-containing group containing a hydroxyl group and/or hydrolyzable group bound to a silicon atom and capable of crosslinking through the formation of a siloxane bond;(B) 1 to 150 parts of a high molecular weight and/or high viscosity plasticizer; and(c) 0.1 to 20 parts of a compound having one silanol group per molecular and/or a compound capable of reacting with moisture to thereby form one silanol group per molecule. When an alkyd paint is applied onto the surface of a cured material formed from this curable composition excellent coating properties can be obtained, the other physical characteristics of the cured material being maintained.Type: GrantFiled: June 7, 1989Date of Patent: November 5, 1991Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Sadao Yukimoto, Toshifumi Hirose, Hiroshi Wakabayashi, Katsuhiko Isayama
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Patent number: 5030691Abstract: A curable polymer composition which comprises:(A) a copolymer comprising a backbone which comprises (1) repeating units derived from at least one monomer selected from the group consisting of alkyl acrylates having 1 to 8 carbon atoms in the alkyl group and alkyl methacrylates having 1 to 8 carbon atoms in the alkyl group and (2) repeating units derived from at least one monomer selected from the group consisting of alkyl acrylates having at least 10 carbon atoms in the alkyl group and alkyl methacrylate having at least 10 carbon atoms in the alkyl groups and (B) an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which at least one hydroxyl group or hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond, which composition has improved transparency and storage stability and can provide a cured material having good weather resistance.Type: GrantFiled: April 26, 1989Date of Patent: July 9, 1991Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Shintaro Kohmitsu, Hiroshi Wakabayashi, Toshifumi Hirose, Katsuhiko Isayama
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Patent number: 5011900Abstract: A curable composition. The composition comprises (A) 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group in which a hydroxy group and/or hydrolyzable group is or are bonded to the silicon atom, said polymer being crosslinkable by formation of a siloxane bond, (B) from 0.1 to 20 parts by weight of a compound having one silanol group per molecule and/or a compound capable of forming a compound having one silanol group per molecule on reacting with moisture, and (C) from 0.1 to 20 parts by weight of a compound having an air oxidative curing unsaturated group. The composition provides a cured product which has low modulus and resistance to dust adhesion and on which an alkyd coating shows excellent coating properties.Type: GrantFiled: June 7, 1989Date of Patent: April 30, 1991Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Sadao Yukimoto, Toshifumi Hirose, Hiroshi Wakabayashi, Katsuhiko Isayama
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Patent number: 4983700Abstract: A curable polymer composition comprising:(A) 100 parts by weight of an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which a hydroxy group and/or a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond,(B) 0.1 to 20 parts by weight of at least one compound selected from the group consisting of a compound having one silanol group in the molecule and a compound which, when reacted with moisture, generates a compound having one silanol group in the molecule,(C) 0.1 to 20 parts by weight of a compound having a silicon-containing group to the silicon atom of which two hydrolyzable groups are bonded and an amino group, and(D) 0.01 to 5 parts by weight of a compound having a silicon-containing group to the silicon atom of which three hydrolyzable groups are bonded and an amino group, which composition provides a cured material having low modulus, group bond strength and improved weather resistance of bond strength.Type: GrantFiled: June 9, 1989Date of Patent: January 8, 1991Assignee: Kanegafuchi Chemical Industry, Co. Ltd.Inventors: Sadao Yukimoto, Toshifumi Hirose, Hiroshi Wakabayashi, Katsuhiko Isayama
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Patent number: 4965311Abstract: A curing composition showing improved drying characteristics of an alkyd coating which comprises:(A) an oxyalkylene polymer having at least one silicon atom-containing group which has a hydroxyl group or a hydrolyzable group bound to a silicon atom and is capable of crosslinking by forming a siloxane bond;(B) a polymeric plasticizer and/or a viscous plasticizer; and(C) an air curing compound.Type: GrantFiled: February 2, 1989Date of Patent: October 23, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Toshifumi Hirose, Sadao Yukimoto, Katsuhiko Isayama
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Patent number: 4963626Abstract: A curable polymer composition which comprises (A) an oxyalkylene base polymer having at least one silicon-containing group to the silicon atom of which a hydroxyl group or a hydrolyzable group is bonded and which is cross linkable through formation of a siloxane bond and (B) at least one compound selected from the group consisting of a silicon-containing compound having at least one long chain hydrocarbon group and a silicon-containing compound having at least one fluorohydrocarbon group in an amount of 0.1 to 30 parts by weight per 100 parts by weight of the polymer (A), which composition provides a cured material having improved surface properties.Type: GrantFiled: January 19, 1989Date of Patent: October 16, 1990Assignee: Kanegafuchi Chemical Industry Co. Ltd.Inventors: Toshifumi Hirose, Katsuhiko Isayama
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Patent number: 4952643Abstract: A curable polymer composition comprising:(A) an organic elastomeric polymer having, in a molecule, at least one silicon-containing group which is cross linkable through formation of a siloxane bond and(B) an epoxy resin which has been cured which is easily handled and affords a cured product having improved strength.Type: GrantFiled: January 29, 1990Date of Patent: August 28, 1990Assignee: Kanegafuchi Chemical Industry Co., Ltd.Inventors: Toshifumi Hirose, Kawakubo Kawakubo, Katsuhiko Isayama
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Patent number: 4923927Abstract: A curable composition comprises 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to silicon atom and which is crosslinkable by forming a siloxane linkage and from 0.1 to less than 10 parts by weight of a liquid diene polymer.Type: GrantFiled: December 1, 1988Date of Patent: May 8, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Toshifumi Hirose, Katsuhiko Isayama
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Patent number: 4906707Abstract: A curable composition comprising an oxyalkylene polymer having reactive silicon groups and at least one other oxyalkylene polymer which contains no reactive silicon group and is either one containing hydroxyl groups and having a number average molecular weight of not less than 4,000 or one having essentially no hydroxyl group. The curable composition gives a cured product which imparts improved drying properties to alkyd paints applied to the cured product.Type: GrantFiled: December 27, 1988Date of Patent: March 6, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Sadao Yukimoto, Toshifumi Hirose, Katsuhiko Isayama
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Patent number: 4902575Abstract: A method of coating the cured product of an oxyalkylene polymer having reactive silicon groups with an alkyd paint. The oxyalkylene polymer is combined with a high-molecular weight plasticizer and the composition is cured and the cured product coated with an alkyd paint.Type: GrantFiled: December 22, 1988Date of Patent: February 20, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Sadao Yukimoto, Toshifumi Hirose, Katsuhiko Isayama