Patents by Inventor Mitsuo Muto

Mitsuo Muto 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).

  • Patent number: 9840601
    Abstract: A photo-curable composition having superior curability at room temperature and storage stability, and also offer a rubber-like cured product thereof having a good profile of properties including heat resistance, low-temperature performance, chemical resistance, solvent resistance and oil resistance. Specifically, A photo-curable composition which includes (A) 100 parts by mass of a linear polyfluoro compound having at least two alkenyl groups in a molecule and a linear perfluoropolyether structure in a backbone of the molecule, (B) a fluorine-containing organohydrogenpolysiloxane having at least two hydrogens bonded to a silicon atom in a molecule, and (C) 0.1 to 500 ppm of a photoactive hydrosililation catalyst relative to the mass of component (A) in terms of metal atom, wherein an amount of component (B) is 0.5 to 3.0 mol of Si—H groups in component (B) relative to 1.0 mol of alkenyl groups in component (A).
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 12, 2017
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Mitsuo Muto, Kenichi Fukuda
  • Publication number: 20170137583
    Abstract: A photo-curable composition having superior curability at room temperature and storage stability, and also offer a rubber-like cured product thereof having a good profile of properties including heat resistance, low-temperature performance, chemical resistance, solvent resistance and oil resistance. Specifically, A photo-curable composition which includes (A) 100 parts by mass of a linear polyfluoro compound having at least two alkenyl groups in a molecule and a linear perfluoropolyether structure in a backbone of the molecule, (B) a fluorine-containing organohydrogenpolysiloxane having at least two hydrogens bonded to a silicon atom in a molecule, and (C) 0.1 to 500 ppm of a photoactive hydrosililation catalyst relative to the mass of component (A) in terms of metal atom, wherein an amount of component (B) is 0.5 to 3.0 mol of Si—H groups in component (B) relative to 1.0 mol of alkenyl groups in component (A).
    Type: Application
    Filed: January 26, 2017
    Publication date: May 18, 2017
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mitsuo MUTO, Kenichi FUKUDA
  • Publication number: 20160222170
    Abstract: A photo-curable composition having superior curability at room temperature and storage stability, and also offer a rubber-like cured product thereof having a good profile of properties including heat resistance, low-temperature performance, chemical resistance, solvent resistance and oil resistance. Specifically, A photo-curable composition which includes (A) 100 parts by mass of a linear polyfluoro compound having at least two alkenyl groups in a molecule and a linear perfluoropolyether structure in a backbone of the molecule, (B) a fluorine-containing organohydrogenpolysiloxane having at least two hydrogens bonded to a silicon atom in a molecule, and (C) 0.1 to 500 ppm of a photoactive hydrosililation catalyst relative to the mass of component (A) in terms of metal atom, wherein an amount of component (B) is 0.5 to 3.0 mol of Si—H groups in component (B) relative to 1.0 mol of alkenyl groups in component (A).
    Type: Application
    Filed: February 3, 2016
    Publication date: August 4, 2016
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mitsuo MUTO, Kenichi FUKUDA
  • Patent number: 9221968
    Abstract: A curable perfluoropolyether based gel composition is provided comprising (A) a linear fluorinated polymer containing at least two alkenyl groups, (B) a polyfluoromonoalkenyl compound containing one alkenyl group and having a perfluoropolyether structure in its backbone, (C) a cyclic organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms and at least one perfluoroalkyl group or perfluoropolyether structure-containing group, and (D) a hydrosilylation reaction catalyst. The composition cures into a gel having improved acid resistance as well as heat resistance, solvent resistance, chemical resistance, weatherability, parting property, and water/oil repellency.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 29, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenichi Fukuda, Mitsuo Muto, Mikio Shiono
  • Publication number: 20150274960
    Abstract: A curable perfluoropolyether based gel composition is provided comprising (A) a linear fluorinated polymer containing at least two alkenyl groups, (B) a polyfluoromonoalkenyl compound containing one alkenyl group and having a perfluoropolyether structure in its backbone, (C) a cyclic organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms and at least one perfluoroalkyl group or perfluoropolyether structure-containing group, and (D) a hydrosilylation reaction catalyst. The composition cures into a gel having improved acid resistance as well as heat resistance, solvent resistance, chemical resistance, weatherability, parting property, and water/oil repellency.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenichi FUKUDA, Mitsuo Muto, Mikio Shiono
  • Publication number: 20140114041
    Abstract: A curable fluoropolyether gel composition comprising (A) a linear polyfluoro compound having at least two alkenyl groups and a perfluoropolyether structure in its backbone, (B) a polyfluoromonoalkenyl compound having one alkenyl group and a perfluoropolyether structure in its backbone, (C) a fluorinated organohydrogensiloxane having at least two SiH groups, and (D) a platinum-based hydrosilylation catalyst is improved by adding (E) a fluorinated acetylene alcohol as reaction regulator. The resulting composition has advantages including uniform dispersion of the catalyst, storage stability, consistent curability, and cured hardness.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 24, 2014
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Mitsuo MUTO, Kenichi FUKUDA, Mikio SHIONO
  • Patent number: 8314190
    Abstract: A fluoropolyether base rubber composition comprising (a) a linear fluoropolyether compound containing at least two ester groups in a molecule and a divalent perfluoroalkyl ether structure in its backbone, and having a Mn of 3,000-100,000, and (b) a siloxane polymer containing at least three amino groups in a molecule cures at room temperature into a product having heat resistance, low-temperature performance, chemical resistance, solvent resistance and oil resistance.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: November 20, 2012
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mitsuo Muto, Takashi Matsuda, Mikio Shiono
  • Publication number: 20110060109
    Abstract: A fluoropolyether base rubber composition comprising (a) a linear fluoropolyether compound containing at least two ester groups in a molecule and a divalent perfluoroalkyl ether structure in its backbone, and having a Mn of 3,000-100,000, and (b) a siloxane polymer containing at least three amino groups in a molecule cures at room temperature into a product having heat resistance, low-temperature performance, chemical resistance, solvent resistance and oil resistance.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 10, 2011
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Mitsuo MUTO, Takashi MATSUDA, Mikio SHIONO