Patents by Inventor Shigeru Morita
Shigeru Morita 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: 8198480Abstract: This invention provides a novel compound which can be properly used as a surfactant, a method of producing a fluoropolymer, surfactant and a fluoropolymer aqueous dispersions using the novel compound. This invention is a fluoroalkylcarboxylic acid derivative which is represented by the general formula (i): Rf1(OCH2CF2CF2)n1OCX1X2CF2(Rf2)n2COOM??(i) wherein Rf1 represents a straight or branched fluoroalkyl group containing 1 to 20 carbon atoms, which fluoroalkyl group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, Rf2 represents a straight or branched fluoroalkylene group containing 1 to 25 carbon atoms, said fluoroalkylene group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, n1 represents an integer of 0 to 3, n2 represents an integer of 0 or 1, X1 and X2 are the same or different and each represents hydrogen atom or fluorine atom, and M represents NH4 or a monovalent metal element.Type: GrantFiled: August 6, 2009Date of Patent: June 12, 2012Assignee: Daikin Industries, Ltd.Inventors: Shigeru Morita, Yoshiki Tanaka, Keiko Washino, Nobuhiko Tsuda, Mitsuru Kishine
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Publication number: 20120095151Abstract: The present invention provides a complex-shaped fluororubber formed product having excellent demoldability in molding. The complex-shaped fluororubber formed product of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: April 19, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120077938Abstract: The present invention provides a vibration isolation rubber excellent not only in heat-aging resistance and oil resistance but also in mechanical properties at high temperatures. The vibration isolation rubber of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, and frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke Ota, Masanori Kitaichi, Yutaka Ueta, Shigeru Morita, Kazuyoshi Kawasaki, Tatsuya Morikawa, Shoji Fukuoka
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Publication number: 20120077925Abstract: To provide a sealing material which is excellent in sealability under high-temperature conditions as well as crack resistance at high temperatures and high compression. A sealing material comprising a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B), the cross-linked fluororubber layer having a loss modulus E? of 600 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test under conditions of measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, and frequency: 10 Hz.Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120077924Abstract: To provide a fluororubber formed product having excellent heat resistance and excellent mechanical properties at high temperatures. A formed product comprising: a cross-linked fluororubber product obtained by cross-link-molding a fluororubber composition containing a fluororubber (A) and a carbon black (B), the cross-linked fluororubber product having a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test under conditions of a measurement temperature of 160° C., tensile strain of 1%, initial force of 157 cN, and frequency of 10 Hz.Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke OTA, Junpei TERADA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120077939Abstract: The present invention provides a fluororubber formed product having excellent heat resistance and excellent mechanical properties at high temperatures. The formed product comprises a cross-linked fluororubber product obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B), the fluororubber (A) being a vinylidene fluoride fluororubber including 48 to 88 mol % of a structural unit derived from vinylidene fluoride and 0 to 10 mol % of a structural unit derived from tetrafluoroethylene relative to the total amount 100 mol % of structural units derived from all monomer components, the cross-linked fluororubber product having a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, and frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke OTA, Junpei TERADA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20120073696Abstract: The present invention provides a hose excellent in mechanical properties at high temperatures. The hose of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Satoshi KAWAI, Shoji FUKUOKA
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Publication number: 20120067706Abstract: The present invention provides a belt excellent in mechanical properties at high temperatures. The belt of the present invention comprises a cross-linked fluororubber layer obtainable by cross-linking a fluororubber composition containing a fluororubber (A) and a carbon black (B). The cross-linked fluororubber layer has a loss modulus E? of 400 kPa or higher and 6,000 kPa or lower determined by a dynamic viscoelasticity test (measurement temperature: 160° C., tensile strain: 1%, initial force: 157 cN, frequency: 10 Hz).Type: ApplicationFiled: August 25, 2011Publication date: March 22, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Junpei TERADA, Daisuke OTA, Masanori KITAICHI, Yutaka UETA, Shigeru MORITA, Kazuyoshi KAWASAKI, Tatsuya MORIKAWA, Shoji FUKUOKA
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Publication number: 20110269911Abstract: A noncrystalline fluoroelastomer which is a copolymer consisting essentially of vinylidene fluoride and a fluoromonomer represented by the general formula (1): CH2?CFRf??(1) wherein Rf is a straight or branched fluoroalkyl group containing 1 to 12 carbon atoms, and has a vinylidene fluoride units/fluoromonomer units mol ratio of 78/22 to 22/78 and a glass transition temperature of not higher than 25° C.Type: ApplicationFiled: March 5, 2010Publication date: November 3, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Shigeru Morita, Masanori Kitaichi, Shouji Fukuoka, Daisuke Ota
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Publication number: 20110021716Abstract: The present invention provides a TFE/Pr type elastomer being excellent in not only amine resistance but also heat resistance and chemical resistance and having a small gel content, and a crosslinkable composition comprising the elastomer. The above-mentioned fluorine-containing elastomer is a fluorine-containing elastomer being crosslinkable with the compound (A), comprising 40 to 70% by mole of tetrafluoroethylene unit, 30 to 60% by mole of propylene unit and 0.1 to 2.5% by mole of a carboxyl group-containing vinyl monomer unit and having a Mooney viscosity at 121° C. of 5 to 100.Type: ApplicationFiled: March 19, 2009Publication date: January 27, 2011Inventors: Keiko Washino, Shigeru Morita, Takashi Yoshimura, Mitsuru Kishine
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Publication number: 20090298984Abstract: This invention provides a novel compound which can be properly used as a surfactant, a method of producing a fluoropolymer, surfactant and a fluoropolymer aqueous dispersions using the novel compound. This invention is a fluoroalkylcarboxylic acid derivative which is represented by the general formula (i): Rf1(OCH2CF2CF2)n1OCX1X2CF2(Rf2)n2COOM??(i) wherein Rf1 represents a straight or branched fluoroalkyl group containing 1 to 20 carbon atoms, which fluoroalkyl group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, Rf2 represents a straight or branched fluoroalkylene group containing 1 to 25 carbon atoms, said fluoroalkylene group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, n1 represents an integer of 0 to 3, n2 represents an integer of 0 or 1, X1 and X2 are the same or different and each represents hydrogen atom or fluorine atom, and M represents NH4 or a monovalent metal element.Type: ApplicationFiled: August 6, 2009Publication date: December 3, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Shigeru MORITA, Yoshiki TANAKA, Keiko WASHINO, Nobuhiko TSUDA, Mitsuru KISHINE
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Publication number: 20090234086Abstract: The present invention provides a method of producing a fluoroelastomer excellent in dispersion stability at low cost, at a high rate of polymerization and in high yields. The present invention is a method of producing a fluoroelastomer comprising an emulsion polymerization of a fluorinated monomer in the presence of a water-soluble radical polymerization initiator, wherein the emulsion polymerization is carried out in the presence of a compound (1) containing a functional group reactive in radical polymerization and a hydrophilic group and a fluorinated compound (2) containing a fluorocarbon group comprising 1 to 6 continuously united carbon atom with fluorine atom directly bound to each of them as well as a hydrophilic group.Type: ApplicationFiled: June 29, 2007Publication date: September 17, 2009Applicant: DAIKIN INDUSTRIES, LTDInventors: Mitsuru Kishine, Masanori Kitaichi, Yousuke Nishimura, Manabu Fujisawa, Yoshiki Tanaka, Shintarou Ogata, Yutaka Ueta, Shigeru Morita
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Patent number: 7589234Abstract: This invention provides a novel compound which can be properly used as a surfactant, a method of producing a fluoropolymer, surfactant and a fluoropolymer aqueous dispersions using the novel compound. This invention is a fluoroalkylcarboxylic acid derivative which is represented by the general formula (i): Rf1(OCH2CF2CF2)n1OCX1X2CF2(Rf2)n2COOM??(i) wherein Rf1 represents a straight or branched fluoroalkyl group containing 1 to 20 carbon atoms, which fluoroalkyl group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, Rf2 represents a straight or branched fluoroalkylene group containing 1 to 25 carbon atoms, said fluoroalkylene group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, n1 represents an integer of 0 to 3, n2 represents an integer of 0 or 1, X1 and X2 are the same or different and each represents hydrogen atom or fluorine atom, and M represents NH4 or a monovalent metal element.Type: GrantFiled: July 2, 2004Date of Patent: September 15, 2009Assignee: Daikin Industries, Ltd.Inventors: Shigeru Morita, Yoshiki Tanaka, Keiko Washino, Nobuhiko Tsuda, Mitsuru Kishine
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Publication number: 20090227727Abstract: The present invention provides a method of producing an elastomeric fluoropolymer excellent in productivity and crosslinkability. The present invention is a method of producing an elastomeric fluoropolymer comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a vinyl group-containing fluorinated emulsifier and a chain transfer agent, wherein the vinyl group-containing fluorinated emulsifier is a compound having a radical polymerizable unsaturated bond and a hydrophilic group within the molecule thereof.Type: ApplicationFiled: May 11, 2009Publication date: September 10, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Nobuhiko TSUDA, Yoshiki TANAKA, Shigeru MORITA, Yasuhiko SAWADA, Tetsuo SHIMIZU
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Publication number: 20090036604Abstract: The present invention provides a method for producing a fluoroelastomer using an emulsifier which is inexpensive and hardly remains in product polymers. The present invention is related to a method for producing a fluoroelastomer, wherein vinylidene fluoride and at least one fluoroolefin monomer other than vinylidene fluoride are copolymerized in the manner of an emulsion polymerization in the presence of an emulsifier represented by C5F11COOM, wherein M represents H, NH4 or an alkali metal.Type: ApplicationFiled: July 7, 2008Publication date: February 5, 2009Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Mitsuru KISHINE, Masanori KITAICHI, Shigeru MORITA, Yoshiki TANAKA, Daisuke OTA
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Publication number: 20080227948Abstract: The present invention provides an elastomeric fluoropolymer excellent in productivity and crosslinkability and a method of producing the same. The present invention is an elastomeric fluoropolymer having a vinyl group-containing fluorinated emulsifier-derived unit (A) and a unit (B) derived from a cure site monomer (b1) and/or bromine atom- and/or iodine atom-containing saturated aliphatic compound (b2), wherein the vinyl group-containing fluorinated emulsifier is a compound having a radical polymerizable unsaturated bond and a hydrophilic group within the molecule.Type: ApplicationFiled: April 5, 2005Publication date: September 18, 2008Inventors: Nobuhiko Tsuda, Yoshiki Tanaka, Shigeru Morita, Yasuhiko Sawada, Tetsuo Shimizu
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Publication number: 20080114118Abstract: Disclosed is a method for producing a fluorine-containing elastomer polymer which is excellent in productivity and crosslinkability. Specifically disclosed is a method for producing a fluorine-containing elastomer polymer wherein a fluorine-containing monomer is polymerized in an aqueous solvent in the presence of an emulsifying agent containing a fluorine-containing vinyl group and a chain transfer agent. This method for producing a fluorine-containing elastomer polymer is characterized in that the emulsifying agent containing a fluorine-containing vinyl group is composed of a compound having a radically polymerizable unsaturated bond and a hydrophilic group in a molecule.Type: ApplicationFiled: April 5, 2005Publication date: May 15, 2008Inventors: Nobuhiko Tsuda, Yoshiki Tanaka, Shigeru Morita, Yasuhiko Sawada, Tetsuo Shimizu
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Patent number: 7307131Abstract: A fluorine-containing allyl ether polymer having a number average molecular weight of 1,000 to 1,000,000 and consisting of chains of at least one repeating unit of the formula: wherein A is an organic group having 1 to 100 carbon atoms.Type: GrantFiled: January 28, 2005Date of Patent: December 11, 2007Assignee: Daikin Industries, Ltd.Inventors: Shigeru Morita, Hirotoshi Sakashita, Takayuki Araki, Tetsuo Shimizu
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Publication number: 20060281946Abstract: This invention provides a novel compound which can be properly used as a surfactant, a method of producing a fluoropolymer, surfactant and a fluoropolymer aqueous dispersions using the novel compound. This invention is a fluoroalkylcarboxylic acid derivative which is represented by the general formula (i): Rf1(OCH2CF2CF2)n1OCX1X2CF2(Rf2)n2COOM ??(i) wherein Rf1 represents a straight or branched fluoroalkyl group containing 1 to 20 carbon atoms, which fluoroalkyl group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, Rf2 represents a straight or branched fluoroalkylene group containing 1 to 25 carbon atoms, said fluoroalkylene group may optionally contain 1 to 5 oxygen atoms in the principal chain thereof, n1 represents an integer of 0 to 3, n2 represents an integer of 0 or 1, X1 and X2 are the same or different and each represents hydrogen atom or fluorine atom, and M represents NH4 or a monovalent metal element.Type: ApplicationFiled: July 2, 2004Publication date: December 14, 2006Inventors: Shigeru Morita, Yoshiki Tanaka, Keiko Washino, Nobuhiko Tsuda, Mitsuru Kishine
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Patent number: 6930159Abstract: A fluorine-containing allyl ether polymer having a number average molecular weight of 1,000 to 1,000,000 and consisting of chains of at least one repeating unit of the formula: wherein A is an organic group having 1 to 100 carbon atoms.Type: GrantFiled: March 10, 2000Date of Patent: August 16, 2005Assignee: Daikin Industries, Ltd.Inventors: Shigeru Morita, Hirotoshi Sakashita, Takayuki Araki, Tetsuo Shimizu