Patents by Inventor Michio Matsuda

Michio Matsuda 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: 20250230608
    Abstract: A water- and oil-repellent agent including: a modified starch, the modified starch including a hydrophobized modified starch that exhibits a viscosity of 60 cps or less at 50° C. in a 20 mass % aqueous solution, the hydrophobized modified starch accounting for 60% by mass or more of the modified starch contained in the water- and oil-repellent agent, where the amount of the modified starch in the water- and oil-repellent agent is 15% by mass or more.
    Type: Application
    Filed: April 7, 2025
    Publication date: July 17, 2025
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Michio MATSUDA, Hirotoshi SAKASHITA, Shun SHIBATA, Tetsuya UEHARA
  • Publication number: 20250230610
    Abstract: A water- and oil-repellent agent including: a polysaccharide; and a sizing agent, wherein the polysaccharide exhibits a viscosity of 60 cps or less at 50° C. in a 20 mass % aqueous solution.
    Type: Application
    Filed: March 28, 2025
    Publication date: July 17, 2025
    Applicant: DAIKEN INDUSTRIES, LTD.
    Inventors: Michio MATSUDA, Hirotoshi Sakashita, Shun Shibata, Tetsuya Uehara
  • Publication number: 20240287301
    Abstract: Provided is an aqueous polymer dispersion exhibiting excellent liquid repellency, oil resistance, and low-temperature storage stability, and obtained from a hydrocarbon group-containing polymer composition including (1) a hydrocarbon group-containing polymer having a repeating unit formed from an acrylic monomer having a hydrocarbon group having 7-40 carbon atoms, (2) a diol compound, and (3) an aqueous medium.
    Type: Application
    Filed: April 30, 2024
    Publication date: August 29, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Michio MATSUDA, Hirotoshi Sakashita, Yuka Kusukawa, Tetsuya Uehara, Shun Shibata, Hisako Nakamura
  • Publication number: 20240150965
    Abstract: A paper oil-resistant agent composition containing a hydrocarbon group-containing polymer having a repeating unit formed from a monomer having a hydrocarbon group having 7 to 40 carbon atoms and an NH group-containing group in an amount of 80% by weight or more based on the polymer. Also disclosed is an oil-resistant paper to which the hydrocarbon group-containing polymer in the paper oil-resistant agent composition adheres, a method for producing paper which includes treating paper with the paper oil-resistant composition, and a method for producing molded pulp which includes filling a mold with the paper oil-resistant agent composition and a pulp slurry, and molding the pulp.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 9, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tetsuya UEHARA, Daisuke NOGUCHI, Norimasa UESUGI, Hisako NAKAMURA, Shun SHIBATA, Michio MATSUDA, Teruyuki FUKUDA
  • Patent number: 11932712
    Abstract: Provided are a fluorine-free soil resistant agent and a soil resistant treatment method which give excellent water-repellency and excellent antifouling property to a substrate, especially a carpet. The soil resistant agent contains (1) a fluorine-free copolymer having (a) a repeating unit formed from an acrylic monomer having a hydrocarbon group containing 7 to 40 carbon atoms, and (b) a repeating unit formed from an acrylic monomer having a hydrophilic group, and (2) water or a mixture of water and an organic solvent dispersing the fluorine-free copolymer (1). A method of treating the substrate, includes applying the soil resistant agent to the substrate.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: March 19, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hisako Nakamura, Michio Matsuda, Hirotoshi Sakashita
  • Patent number: 11851822
    Abstract: An oil-resistant agent for paper, which contains a non-fluorine copolymer that has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group with 7-40 carbon atoms and a repeating unit formed from (b) an acrylic monomer having a hydrophilic group. The oil-resistant agent for paper also contains a liquid medium that is composed of water and/or an organic solvent, preferably of water or a mixture (aqueous medium) of water and an organic solvent. The non-fluorine copolymer preferably has a repeating unit formed from (c) a monomer having an ion donor group in addition to the repeating units formed from the monomers (a) and (b). Also disclosed is an oil-resistant paper having an oil-resistant layer including the oil-resistant agent for paper, and starch or modified starch, on a surface of the paper as well as a method of treating paper.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 26, 2023
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki Yamamoto, Michio Matsuda, Tetsuya Uehara, Hirotoshi Sakashita
  • Publication number: 20230250589
    Abstract: An oil-resistant agent and an oil-resistant composition, which are capable of imparting excellent oil-resistance to paper. The oil-resistant composition contains a polysaccharide (1) and an oil-resistant polymer (2). The polysaccharide (1) is preferably starch. The oil-resistant polymer (2) preferably has (a) a repeating unit formed from an acrylic monomer that has a long-chain hydrocarbon group having 7-40 carbon atoms, and (b) a repeating unit formed from an acrylic monomer that has a hydrophilic group. A polyvinyl alcohol or glucose may be present as an additive.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 10, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Michio MATSUDA, Hirotoshi SAKASHITA, Nozomi YAMAGUCHI, Tetsuya UEHARA, Daisuke NOGUCHI, Shun SHIBATA
  • Patent number: 11634867
    Abstract: A method for producing a paper, which includes applying at least one of ionizing radiation and plasma to at least one of a paper base and a compound (A) selected from: a compound having a carbon-carbon unsaturated bond and containing no fluorine atom in a molecular structure, and a compound containing no fluorine atom in a molecular structure in which radicals are generated by irradiation of an electron beam to the compound, to introduce a layer formed from the compound (A) on a surface of the paper base.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: April 25, 2023
    Assignees: OSAKA UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro Oshima, Yoshikage Ohmukai, Yuko Shiotani, Kazuyuki Satou, Michio Matsuda, Tomohiro Yoshida, Ikuo Yamamoto
  • Publication number: 20230096888
    Abstract: A non-fluorinated copolymer composition containing (1) a fluorine-free copolymer and (2) acetylene alcohol. The non-fluorinated copolymer (1) has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group having 7 to 40 carbon atoms; and a repeating unit formed from (c) an acrylic monomer having an olefinic carbon-carbon double bond and an ion donating group. Also disclosed is an oil-resistant agent containing a fluorine-free composition including (1) a fluorine-free copolymer, and (2) an acetylene alcohol, wherein the fluorine-free copolymer (1) has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group having 7 to 40 carbon atoms; an oil-resistant agent kit; a method for producing the fluorine-free copolymer; an oil-resistant paper; and a method for eliminating foam during treatment of paper with the fluorine-free copolymer composition.
    Type: Application
    Filed: September 16, 2022
    Publication date: March 30, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Michio MATSUDA, Hirotoshi SAKASHITA, Tetsuya UEHARA, Daisuke NOGUCHI
  • Patent number: 11434606
    Abstract: A molded pulp product including: a pulp, a water- and oil-resistant agent, and a water soluble polymer that does not dissolve in an aqueous medium at 40° C. or lower, wherein a content of the water soluble polymer is 1 to 50% by mass, based on the pulp.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: September 6, 2022
    Assignee: DAIKEN INDUSTRIES, LTD.
    Inventors: Tetsuya Uehara, Michio Matsuda, Takashi Enomoto
  • Publication number: 20220081842
    Abstract: A paper oil-resistant agent which is added to the interior of paper and includes (1) a non-fluorine polymer and (2) at least one type of particles selected from inorganic particles or organic particles, the amount of the particles (2) being 1-99.9 wt % of the total weight of the non-fluorine polymer (1) and the particles (2). Also disclosed is an oil-resistant paper including the paper oil-resistant agent and a method for producing the oil-resistant paper.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tetsuya UEHARA, Michio MATSUDA, Hirotoshi SAKASHITA, Yuuki YAMAMOTO, Daisuke NOGUCHI
  • Publication number: 20210164165
    Abstract: An oil-resistant agent for paper, which contains a non-fluorine copolymer that has a repeating unit formed from (a) an acrylic monomer having a long-chain hydrocarbon group with 7-40 carbon atoms and a repeating unit formed from (b) an acrylic monomer having a hydrophilic group. The oil-resistant agent for paper also contains a liquid medium that is composed of water and/or an organic solvent, preferably of water or a mixture (aqueous medium) of water and an organic solvent. The non-fluorine copolymer preferably has a repeating unit formed from (c) a monomer having an ion donor group in addition to the repeating units formed from the monomers (a) and (b). Also disclosed is an oil-resistant paper having an oil-resistant layer including the oil-resistant agent for paper, and starch or modified starch, on a surface of the paper as well as a method of treating paper.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuuki YAMAMOTO, Michio Matsuda, Tetsuya Uehara, Hirotoshi Sakashita
  • Publication number: 20210108371
    Abstract: A method for producing a paper, which includes applying at least one of ionizing radiation and plasma to at least one of a paper base and a compound (A) selected from: a compound having a carbon-carbon unsaturated bond and containing no fluorine atom in a molecular structure, and a compound containing no fluorine atom in a molecular structure in which radicals are generated by irradiation of an electron beam to the compound, to introduce a layer formed from the compound (A) on a surface of the paper base.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 15, 2021
    Applicants: OSAKA UNIVERSITY, DAIKIN INDUSTRIES, LTD.
    Inventors: Akihiro OSHIMA, Yoshikage OHMUKAI, Yuko SHIOTANI, Kazuyuki SATOU, Michio MATSUDA, Tomohiro YOSHIDA, Ikuo YAMAMOTO
  • Publication number: 20210102020
    Abstract: Provided are a fluorine-free soil resistant agent and a soil resistant treatment method which give excellent water-repellency and excellent antifouling property to a substrate, especially a carpet. The soil resistant agent contains (1) a fluorine-free copolymer having (a) a repeating unit formed from an acrylic monomer having a hydrocarbon group containing 7 to 40 carbon atoms, and (b) a repeating unit formed from an acrylic monomer having a hydrophilic group, and (2) water or a mixture of water and an organic solvent dispersing the fluorine-free copolymer (1). A method of treating the substrate, includes applying the soil resistant agent to the substrate.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 8, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hisako NAKAMURA, Michio Matsuda, Hirotoshi Sakashita
  • Publication number: 20210054569
    Abstract: A molded pulp product including: a pulp, a water- and oil-resistant agent, and a water soluble polymer that does not dissolve in an aqueous medium at 40° C. or lower, wherein a content of the water soluble polymer is 1 to 50% by mass, based on the pulp.
    Type: Application
    Filed: December 6, 2018
    Publication date: February 25, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tetsuya UEHARA, Michio MATSUDA, Takashi ENOMOTO
  • Patent number: 9540470
    Abstract: Disclosed is a treatment agent for paper comprising a fluorine-containing copolymer having a repeat unit (a) derived from a fluorine-containing monomer represented by general formula (I): CH2?C(—X)—C(?O)—Y—[—CH2)m—Z—]p—(CH2)n—Rf; a repeat unit (b) derived from at least one amino monomer represented by general formula (II-1): or a derivative thereof; and a repeat unit (c) derived from a pyrrolidone monomer represented by general formula (III): The treatment agent for paper provides paper having high oil resistance and high water resistance.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: January 10, 2017
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Michio Matsuda, Tetsuya Uehara, Norimasa Uesugi, Ikuo Yamamoto, Kayo Kusumi
  • Patent number: 9464384
    Abstract: A water-resistant/oil-resistant agent for paper containing (I) a fluorine-containing copolymer including repeating units derived from: (a) a fluorine-containing monomer that has a fluoroalkyl group and that is represented by general formula (1): CH2?C(—X)—C(?O)—Y—Z—Rf (where X is a hydrogen atom, a linear or branched alkyl group having 1-21 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or the like; Y is —O— or —NH—; Z is an aliphatic group having 1-10 carbon atoms, an aromatic group having 6-10 carbon atoms, a cycloaliphatic group, or the like; and Rf is a linear or branched fluoroalkyl group having 1-6 carbon atoms), and (b) a (meth)acrylate monomer containing no fluorine atoms; and (II) a polypropylene glycol compound. Also disclosed is a method for treating paper, a treated paper and a composition for treating paper containing the water-resistant/oil resistant agent.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 11, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tetsuya Uehara, Kayo Kusumi, Michio Matsuda
  • Patent number: 9249540
    Abstract: Disclosed is a water and oil resistant agent comprising a fluorine-containing copolymer obtained by copolymerizing a (meth)acrylate monomer having a polyfluoroalkyl group having 1-6 carbon atoms, hydrophilic monomer, and monomer having an anion-donating group, which agent affords a superior water and oil resistance to a paper. The invention also discloses a process for treating a paper by the water and oil resistant agent and a treated paper thereby.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 2, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Eiji Masuda, Michio Matsuda, Kayo Kusumi, Tetsuya Uehara
  • Publication number: 20150096699
    Abstract: A water-resistant/oil-resistant agent for paper containing (I) a fluorine-containing copolymer including repeating units derived from: (a) a fluorine-containing monomer that has a fluoroalkyl group and that is represented by general formula (1): CH2?C(—X)—C(?O)—Y—Z—Rf (where X is a hydrogen atom, a linear or branched alkyl group having 1-21 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or the like; Y is —O— or —NH—; Z is an aliphatic group having 1-10 carbon atoms, an aromatic group having 6-10 carbon atoms, a cycloaliphatic group, or the like; and Rf is a linear or branched fluoroalkyl group having 1-6 carbon atoms), and (b) a (meth)acrylate monomer containing no fluorine atoms; and (II) a polypropylene glycol compound. Also disclosed is a method for treating paper, a treated paper and a composition for treating paper containing the water-resistant/oil resistant agent.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 9, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tetsuya Uehara, Kayo Kusumi, Michio Matsuda
  • Patent number: 8992733
    Abstract: Disclosed is a water and oil resistant agent comprising a fluorine-containing copolymer obtained by copolymerizing a (meth)acrylate monomer having a polyfluoroalkyl group having 1 to 6 carbon atoms, the agent being able to afford a superior water and oil resistance to a paper. The invention also discloses a composition comprising the water and oil resistant agent, a process for treating a paper thereby and a treated paper thereby.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: March 31, 2015
    Assignee: Daikin Industries, Ltd.
    Inventors: Tetsuya Uehara, Kensuke Mohara, Eiji Masuda, Kayo Kusumi, Michio Matsuda