Patents by Inventor Shinji Irifune

Shinji Irifune 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).

  • Publication number: 20190144783
    Abstract: The present application relates to anti-foam compositions and methods of making and using such compositions as well as consumer products that comprise such compositions and the use of same. Such anti-foam compositions have low viscosities yet are effective antifoamers.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 16, 2019
    Inventors: Rajan Keshav PANANDIKER, Bernard William KLUESENER, Rachel Morgan Clayton ROEDER, Hiroyuki MORIYA, Shinji IRIFUNE
  • Patent number: 9895296
    Abstract: Provided is a cosmetic preparation superior in stability and feel. The cosmetic preparation contains an (a) organopolysiloxane emulsion in an amount of not smaller than 0.1% by mass. This organopolysiloxane emulsion is obtained through emulsion polymerization and contains octamethylcyclotetrasiloxane in an amount of not larger than 1,000 ppm by mass.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: February 20, 2018
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuji Ando, Shinji Irifune
  • Patent number: 9834678
    Abstract: To provide a radiation-curable silicone composition which provides a cured product whose odor is decreased, particularly is odorless, and has excellent curability and releasing properties. A radiation-curable silicone composition including the following components (A) and (B): (A) an epoxy group-containing cation-polymerizable organopolysiloxane which is represented by the following average composition formula (1): R1aR2bSiO(4-a-b)/2 (1) and (B) an iodonium salt having a cation moiety represented by the following general formula (2) in an effective amount to cure said component (A), [(R3)—I—(R3)]+ (2) wherein R3 is, independently of each other, a substituted or unsubstituted monovalent aromatic hydrocarbon group having 15 to 26 carbon atoms, wherein said component (A) may be accompanied by any other compounds volatilizing during heating at 105 degrees C. for 3 hours, a content of said compounds is at most 2.0 mass %, based on a total amount of component (A) and said compound.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: December 5, 2017
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kenji Tanaka, Shinji Irifune, Shunji Aoki
  • Publication number: 20170283653
    Abstract: A silicone mist inhibitor which has an excellent effect of inhibiting silicone mist and provides a composition and a cured product which have excellent storage stability is provided. A silicone mist inhibitor includes at least one selected from organic powder, inorganic powder and inorganic-organic composite powder, wherein the powder has a volume average particle size of 100 to 4000 nm. Further, a solventless silicone composition includes an organopolysiloxane having a viscosity at 25 degrees C. of 25 to 50,000 mPa·s, wherein the solventless silicone composition further includes the aforesaid silicone mist inhibitor in an amount of 0.1 to 10 parts by mass, relative to 100 parts by mass of the organopolysiloxane.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 5, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kenji TANAKA, Shinji IRIFUNE, Yoshinori INOKUCHI
  • Patent number: 9657181
    Abstract: The invention relates to a composition for an antistatic release agent comprising: a release component, a conductive component, an organic solvent, and water, wherein the release component contains a condensation-type organopolysiloxane, the conductive component contains a complex with a ?-conjugated electrically conductive polymer and a polyanion having a molecular weight of 20,000 to 900,000, an amount of the conductive component is 1 to 300 parts by mass, relative to 100 parts by mass of the release component, at least one amine compound selected from the group consisting of a secondary amine, a tertiary amine or a quaternary ammonium salt is coordinated to or bonded to portion of anion groups in the polyanion as an ion pair, and the water content is 5% by mass or less, relative to a total amount of the composition for an antistatic release agent.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: May 23, 2017
    Assignees: SHIN-ETSU POLYMER CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Sou Matsubayashi, Kohei Kanto, Kazuyoshi Yoshida, Kenji Yamamoto, Shinji Irifune
  • Patent number: 9624398
    Abstract: The invention relates to an antistatic release agent comprising: a release component that contains a condensation-curing type organopolysiloxane, a conductive component that contains a complex of a ?-conjugated electrically conductive polymer and a polyanion and an organic solvent, wherein the amount of the conductive component relative to 100 parts by mass of the release component is 1 to 300 parts by mass, at least one amine-type compound selected from the group consisting of a secondary amine, a tertiary amine or a quaternary ammonium salt is coordinated to or bonded to portion of anion groups in the polyanion as an ion pair, and the amine-type compound has one or more substituent selected from the group consisting of an alkyl group having 4 or more carbon atoms, an aryl group, an aralkyl group, an alkylene group, an arylene group, an aralkylene group and an oxyalkylene group.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: April 18, 2017
    Assignees: SHIN-ETSU POLYMER CO., LTD., SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Sou Matsubayashi, Kohei Kanto, Kazuyoshi Yoshida, Kenji Yamamoto, Shinji Irifune
  • Patent number: 9403968
    Abstract: A heavy release additive for a release sheet comprises a condensation reaction product of dehydrative condensation reaction between (A) a polydiorganosiloxane of average polymerization degree of 500 to 10,000 and has at least one hydroxy or hydrolysable group per molecule and (B) a polyorganosiloxane resin composed of a (SiO4/2) unit and a (R3SiO1/2) unit (wherein R's independently represent a C1-12 monovalent hydrocarbon group or a C2-6 alkenyl group each having no aliphatic unsaturated bond), has a ratio of the (R3SiO1/2) unit to the (SiO4/2) unit of 0.6 to 1.2 by mole, and contains the hydroxy group and the hydrolysable group in the total content of 2.1 mass % or more and less than 10.0 mass %. The heavy release additive can have the effect of achieving an extremely great peel force compared with cases in which no additive is added.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 2, 2016
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Toshiaki Ihara, Shunji Aoki, Shinji Irifune
  • Patent number: 9321936
    Abstract: An addition curable silicone emulsion release composition suitable for forming a releasable film having a high releasability to a pressure sensitive adhesives simultaneously with good adhesion to a plastic film substrate is provided. A release film prepared by coating and curing such composition on a plastic film is also provided. The good adhesion and the high releasability to acryl pressure sensitive adhesives are realized despite the low content of the organopolysiloxane containing a large amount of trifunctional siloxane units and alkenyl groups which had been used for realizing the adhesion. The addition curable silicone emulsion release composition is prepared by blending predetermined proportion of mixtures of high molecular weight organopolysiloxanes each containing an alkenyl group and phenyl group at particular ratio.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: April 26, 2016
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tsutomu Nakajima, Shinji Irifune, Kenji Yamamoto
  • Patent number: 9272232
    Abstract: Disclosed is a powder antifoaming agent containing: (A) a hydrophobic organopolysiloxane that has a viscosity at 25° C. of 10-100,000 mm2/s; (B) a fine silica powder; (C) a surfactant; and (D) a water-soluble encapsulating agent that is in a solid state at 25° C. This powder antifoaming agent is characterized by being obtained by spray drying a dispersion liquid that is obtained by dispersing a silicone oil compound, which is obtained by mixing the component (A) and the component (B), and the component (D) in water in the presence of the component (C), and is also characterized in that the silicone oil compound is encapsulated by the component (D) that serves as an outer shell. Since the present powder antifoaming agent does not contain water by being produced by a spray drying method, the powder antifoaming agent is free from problems of emulsion antifoaming agents such as separation and putrefaction.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: March 1, 2016
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takato Sakurai, Shinji Irifune
  • Publication number: 20150322273
    Abstract: The invention relates to a composition for an antistatic release agent comprising: a release component, a conductive component, an organic solvent, and water, wherein the release component contains a condensation-type organopolysiloxane, the conductive component contains a complex with a ?-conjugated electrically conductive polymer and a polyanion having a molecular weight of 20,000 to 900,000, an amount of the conductive component is 1 to 300 parts by mass, relative to 100 parts by mass of the release component, at least one amine compound selected from the group consisting of a secondary amine, a tertiary amine or a quaternary ammonium salt is coordinated to or bonded to portion of anion groups in the polyanion as an ion pair, and the water content is 5% by mass or less, relative to a total amount of the composition for an antistatic release agent.
    Type: Application
    Filed: July 20, 2015
    Publication date: November 12, 2015
    Applicants: SHIN-ETSU POLYMER CO., LTD., SHIN-ETSU CHEMICAL CO. LTD.
    Inventors: Sou Matsubayashi, Kohei Kanto, Kazuyoshi Yoshida, Kenji Yamamoto, Shinji Irifune
  • Publication number: 20150290091
    Abstract: Provided is a cosmetic preparation superior in stability and feel. The cosmetic preparation contains an (a) organopolysiloxane emulsion in an amount of not smaller than 0.1% by mass. This organopolysiloxane emulsion is obtained through emulsion polymerization and contains octamethylcyclotetrasiloxane in an amount of not larger than 1,000 ppm by mass.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 15, 2015
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yuji Ando, Shinji Irifune
  • Publication number: 20150252193
    Abstract: To provide a radiation-curable silicone composition which provides a cured product whose odor is decreased, particularly is odorless, and has excellent curability and releasing properties. A radiation-curable silicone composition including the following components (A) and (B): (A) an epoxy group-containing cation-polymerizable organopolysiloxane which is represented by the following average composition formula (1): R1aR2bSiO(4-a-b)/2 (1) and (B) an iodonium salt having a cation moiety represented by the following general formula (2) in an effective amount to cure said component (A), [(R3)—I—(R3)]+ (2) wherein R3 is, independently of each other, a substituted or unsubstituted monovalent aromatic hydrocarbon group having 15 to 26 carbon atoms, wherein said component (A) may be accompanied by any other compounds volatilizing during heating at 105 degrees C. for 3 hours, a content of said compounds is at most 2.0 mass %, based on a total amount of component (A) and said compound.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 10, 2015
    Inventors: Kenji TANAKA, Shinji IRIFUNE, Shunji AOKI
  • Publication number: 20150225577
    Abstract: A silicone mist inhibitor which has an excellent effect of inhibiting silicone mist and provides a composition and a cured product which have excellent storage stability is provided. A silicone mist inhibitor includes at least one selected from organic powder, inorganic powder and inorganic-organic composite powder, wherein the powder has a volume average particle size of 100 to 4000 nm. Further, a solventless silicone composition includes an organopolysiloxane having a viscosity at 25 degrees C. of 25 to 50,000 mPa·s, wherein the solventless silicone composition further includes the aforesaid silicone mist inhibitor in an amount of 0.1 to 10 parts by mass, relative to 100 parts by mass of the organopolysiloxane.
    Type: Application
    Filed: July 9, 2013
    Publication date: August 13, 2015
    Inventors: Kenji Tanaka, Shinji Irifune, Yoshinori Inokuchi
  • Publication number: 20150225574
    Abstract: An antistatic release agent of the present invention contains: a silicone emulsion including four mutually different types of organopolysiloxanes and an organohydrogenpolysiloxane: and a conductive complex of a ?-conjugated electrically conductive a polymer and a polyanion; the content of the conductive complex being 0.5 to 100 parts by mass relative to 100 parts by mass of the total amount of organopolysiloxanes and organohydrogenpolysiloxane.
    Type: Application
    Filed: September 11, 2013
    Publication date: August 13, 2015
    Inventors: Kohei Kanto, Sou Matsubayashi, Kazuyoshi Yoshida, Tsutomu Nakajima, Shinji Irifune
  • Publication number: 20150218410
    Abstract: The invention relates to an antistatic release agent comprising: a release component that contains a condensation-curing type organopolysiloxane, a conductive component that contains a complex of a ?-conjugated electrically conductive polymer and a polyanion and an organic solvent, wherein the amount of the conductive component relative to 100 parts by mass of the release component is 1 to 300 parts by mass, at least one amine-type compound selected from the group consisting of a secondary amine, a tertiary amine or a quaternary ammonium salt is coordinated to or bonded to portion of anion groups in the polyanion as an ion pair, and the amine-type compound has one or more substituent selected from the group consisting of an alkyl group having 4 or more carbon atoms, an aryl group, an aralkyl group, an alkylene group, an arylene group, an aralkylene group and an oxyalkylene group.
    Type: Application
    Filed: September 5, 2013
    Publication date: August 6, 2015
    Applicant: SHIN-ETSU POLYMER CO., LTD.
    Inventors: Sou Matsubayashi, Kohei Kanto, Kazuyoshi Yoshida, Kenji Yamamoto, Shinji Irifune
  • Publication number: 20150133594
    Abstract: A heavy release additive for a release sheet comprises a condensation reaction product of dehydrative condensation reaction between (A) a polydiorganosiloxane of average polymerization degree of 500 to 10,000 and has at least one hydroxy or hydrolysable group per molecule and (B) a polyorganosiloxane resin composed of a (SiO4/2) unit and a (R3SiO1/2) unit (wherein R's independently represent a C1-12 monovalent hydrocarbon group or a C2-6 alkenyl group each having no aliphatic unsaturated bond), has a ratio of the (R3SiO1/2) unit to the (SiO4/2) unit of 0.6 to 1.2 by mole, and contains the hydroxy group and the hydrolysable group in the total content of 2.1 mass % or more and less than 10.0 mass %. The heavy release additive can have the effect of achieving an extremely great peel force compared with cases in which no additive is added.
    Type: Application
    Filed: May 17, 2013
    Publication date: May 14, 2015
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Toshiaki Ihara, Shunji Aoki, Shinji Irifune
  • Patent number: 9012588
    Abstract: An organohydrogenpolysiloxane comprising at least two structural units of —(HR1SiO)a— wherein R1 is a monovalent hydrocarbon group, and a is an integer of 2-50, which are connected together via a SiH-free structural unit, is a novel crosslinking agent. A silicone composition comprising an alkenyl-containing organopolysiloxane, the organohydrogenpolysiloxane, and a catalyst is curable through addition reaction, adherent to plastic substrates, and useful for coating purposes.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: April 21, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shinji Irifune, Akinari Itagaki
  • Publication number: 20140336284
    Abstract: Disclosed is a powder antifoaming agent containing: (A) a hydrophobic organopolysiloxane that has a viscosity at 25° C. of 10-100,000 mm2/s; (B) a fine silica powder; (C) a surfactant; and (D) a water-soluble encapsulating agent that is in a solid state at 25° C. This powder antifoaming agent is characterized by being obtained by spray drying a dispersion liquid that is obtained by dispersing a silicone oil compound, which is obtained by mixing the component (A) and the component (B), and the component (D) in water in the presence of the component (C), and is also characterized in that the silicone oil compound is encapsulated by the component (D) that serves as an outer shell. Since the present powder antifoaming agent does not contain water by being produced by a spray drying method, the powder antifoaming agent is free from problems of emulsion antifoaming agents such as separation and putrefaction.
    Type: Application
    Filed: October 18, 2012
    Publication date: November 13, 2014
    Inventors: Takato Sakurai, Shinji Irifune
  • Patent number: 8779074
    Abstract: A silicone emulsion composition is provided comprising organopolysiloxane, organohydrogenpolysiloxane, surfactant, and water. Two organopolysiloxanes of different type are blended, whereby a cured silicone coating is improved to be fully adherent to plastic film and lightly peelable from pressure-sensitive adhesive. By limiting the SiH content of organohydrogenpolysiloxane, the composition is improved in shelf stability. A specific surfactant is used to control the size of emulsion particles so as to improve wettability to plastic film.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 15, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shinji Irifune, Tsutomu Nakajima
  • Patent number: 8608846
    Abstract: A liquid silicone rubber coating composition exhibiting high adhesion for an airbag base fabric; a curtain airbag having a silicone rubber coating layer of the cured composition formed on at least one surface of the base fabric; and a method for producing such curtain airbag are provided. The composition comprises (A) an organopolysiloxane having at least 2 alkenyl groups bonded to the silicon atoms per molecule; (B) an organohydrogenpolysiloxane having at least 2 structural units represented by formula (1) per molecule, the structural units being linked by a non-siloxane structural unit not containing SiH group; (C) an addition catalyst; (E) an organosilicon compound having an epoxy group and an alkoxy group bonded to the silicon atom in the molecule; and (F) a titanium compound and/or a zirconium compound; and preferably (D) a fine powder silica having a specific surface area of at least 50 m2/g.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 17, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hidenori Mizushima, Masayuki Ikeno, Shinji Irifune