Patents by Inventor Shinsuke Haraguchi
Shinsuke Haraguchi 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: 11767446Abstract: Provided is a coating material composition that enables an efficient repair operation of a coating film after coating, a (meth)acrylic copolymer that is suitable for obtaining the coating material composition, and a coated article and a method for forming a multilayer coating film using the coating material composition. The (meth)acrylic copolymer includes: a constituent unit derived from a macromonomer (a); and a constituent unit derived from a vinyl monomer (b), a hydroxyl value of the (meth)acrylic copolymer is equal to or greater than 120 mgKOH/g and equal to or less than 260 mgKOH/g, and the content of a constituent unit that has a primary hydroxyl group of the (meth)acrylic copolymer is equal to or less than 30 parts by mass with respect to 100 parts by mass of the constituent unit derived from the macromonomer (a) and the constituent unit derived from the vinyl monomer (b).Type: GrantFiled: May 2, 2019Date of Patent: September 26, 2023Assignee: Mitsubishi Chemical CorporationInventors: Takuhiro Ishii, Junichi Nakamura, Shinsuke Haraguchi
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Patent number: 11421101Abstract: An aqueous resin dispersion with which excellent adhesiveness to a polyolefin base material such as a polypropylene base material can be easily obtained, which can be baked at low temperature, and which is for producing an aqueous coating material; and an aqueous coating material and an adhesive which contain the aqueous resin dispersion, are provided. In an aqueous resin dispersion (C) of the present invention, an olefin polymer (A) and a polymer (B) containing a constitutional unit derived from a radically polymerizable monomer (b1) having a reactive functional group are dispersed in an aqueous medium, a median diameter of the aqueous resin dispersion (C) measured by a dynamic light scattering method is 300 nm or less, and a dry product of the aqueous resin dispersion (C) contains 1 mass % or more of an insoluble component (D) that is insoluble in tetrahydrofuran.Type: GrantFiled: June 1, 2020Date of Patent: August 23, 2022Assignee: Mitsubishi Chemical CorporationInventors: Akira Harada, Shinsuke Haraguchi, Motomi Tanaka, Jun Itou
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Patent number: 11384188Abstract: The invention provides an aqueous resin dispersion which can form a coating film excellent in adhesion to a polypropylene base material, and water resistance, and has excellent particle stability. Specifically, it provides an aqueous resin dispersion in which an olefin polymer (A), and a polymer (C) containing a constituent unit derived from a radically polymerizable monomer (B) represented by the following general formula (1) are dispersed in an aqueous medium. (In the general formula (1), R is a hydrogen atom or a methyl group, and X is a straight chain or branched alkylene group having 3 to 5 carbon atoms; and n is an integer of 1 to 20.Type: GrantFiled: December 6, 2018Date of Patent: July 12, 2022Assignee: Mitsubishi Chemical CorporationInventors: Akira Harada, Shinsuke Haraguchi, Motomi Tanaka
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Publication number: 20210040340Abstract: Provided is a water-based ink which has high dispersibility of a pigment and imparts high smoothness and glossiness to a coating film obtainable from the water-based ink. Water-based ink of the present invention is a water-based ink containing a pigment, a vehicle, and water, in which the vehicle contains an alkali-soluble resin (I) and a composite resin (II), and the composite resin (II) is a composite resin of a urethane polymer (e) and an acrylic polymer (f).Type: ApplicationFiled: September 16, 2020Publication date: February 11, 2021Applicant: Mitsubishi Chemical CorporationInventors: Etsu OU, Akira SATO, Shinsuke HARAGUCHI, Hiroshi TOKUE, Masashi SERIZAWA
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Patent number: 10851248Abstract: The invention is to provide a method for producing an aqueous resin dispersion capable of forming a coating film superior in adhesion to a polypropylene base material, and water resistance. Specifically, the invention provides a method for producing an aqueous resin dispersion, including a step of mixing and polymerizing a polyolefin dispersion (A), a radically polymerizable monomer (B), and a surfactant for emulsion polymerization (C), wherein the amount of the radically polymerizable monomer (B) mixed is 0.5 to 2 times the solid component of the polyolefin dispersion (A) in terms of parts by mass, and the amount of the solid component of the surfactant for emulsion polymerization (C) mixed is 0 to 3 parts by mass with respect to 100 parts by mass of the radically polymerizable monomer (B).Type: GrantFiled: December 6, 2018Date of Patent: December 1, 2020Assignee: Mitsubishi Chemical CorporationInventors: Akira Harada, Shinsuke Haraguchi, Motomi Tanaka
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Publication number: 20200291212Abstract: An aqueous resin dispersion with which excellent adhesiveness to a polyolefin base material such as a polypropylene base material can be easily obtained, which can be baked at low temperature, and which is for producing an aqueous coating material; and an aqueous coating material and an adhesive which contain the aqueous resin dispersion, are provided. In an aqueous resin dispersion (C) of the present invention, an olefin polymer (A) and a polymer (B) containing a constitutional unit derived from a radically polymerizable monomer (b1) having a reactive functional group are dispersed in an aqueous medium, a median diameter of the aqueous resin dispersion (C) measured by a dynamic light scattering method is 300 nm or less, and a dry product of the aqueous resin dispersion (C) contains 1 mass % or more of an insoluble component (D) that is insoluble in tetrahydrofuran.Type: ApplicationFiled: June 1, 2020Publication date: September 17, 2020Applicant: Mitsubishi Chemical CorporationInventors: Akira HARADA, Shinsuke Haraguchi, Motomi Tanaka, Jun Itou
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Publication number: 20190256733Abstract: Provided is a coating material composition that enables an efficient repair operation of a coating film after coating, a (meth)acrylic copolymer that is suitable for obtaining the coating material composition, and a coated article and a method for forming a multilayer coating film using the coating material composition. The (meth)acrylic copolymer includes: a constituent unit derived from a macromonomer (a); and a constituent unit derived from a vinyl monomer (b), a hydroxyl value of the (meth)acrylic copolymer is equal to or greater than 120 mgKOH/g and equal to or less than 260 mgKOH/g, and the content of a constituent unit that has a primary hydroxyl group of the (meth)acrylic copolymer is equal to or less than 30 parts by mass with respect to 100 parts by mass of the constituent unit derived from the macromonomer (a) and the constituent unit derived from the vinyl monomer (b).Type: ApplicationFiled: May 2, 2019Publication date: August 22, 2019Applicant: Mitsubishi Chemical CorporationInventors: Takuhiro ISHII, Junichi NAKAMURA, Shinsuke HARAGUCHI
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Publication number: 20190106575Abstract: The invention is to provide a method for producing an aqueous resin dispersion capable of forming a coating film superior in adhesion to a polypropylene base material, and water resistance. Specifically, the invention provides a method for producing an aqueous resin dispersion, including a step of mixing and polymerizing a polyolefin dispersion (A), a radically polymerizable monomer (B), and a surfactant for emulsion polymerization (C), wherein the amount of the radically polymerizable monomer (B) mixed is 0.5 to 2 times the solid component of the polyolefin dispersion (A) in terms of parts by mass, and the amount of the solid component of the surfactant for emulsion polymerization (C) mixed is 0 to 3 parts by mass with respect to 100 parts by mass of the radically polymerizable monomer (B).Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Applicant: Mitsubishi Chemical CorporationInventors: Akira HARADA, Shinsuke Haraguchi, Motomi Tanaka
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Publication number: 20190106591Abstract: The invention provides an aqueous resin dispersion which can form a coating film excellent in adhesion to a polypropylene base material, and water resistance, and has excellent particle stability. Specifically, it provides an aqueous resin dispersion in which an olefin polymer (A), and a polymer (C) containing a constituent unit derived from a radically polymerizable monomer (B) represented by the following general formula (1) are dispersed in an aqueous medium. (In the general formula (1), R is a hydrogen atom or a methyl group, and X is a straight chain or branched alkylene group having 3 to 5 carbon atoms; and n is an integer of 1 to 20.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Applicant: Mitsubishi Chemical CorporationInventors: Akira HARADA, Shinsuke HARAGUCHI, Motomi TANAKA
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Patent number: 8735478Abstract: The present invention relates to an aqueous coating material containing polymer (I), colloidal silica (II), and nonionic surfactant (III) with an HLB value of 16 or more. The polymer (I) is obtained by copolymerization of monomer mixture (M) that contains 0.2 to 10% by mass of monomer (a) having two or more radically polymerizable groups. The solid content of the colloidal silica (II) is 0.1 to 20 parts by mass with respect to 100 parts by mass of the polymer (I). The content of the nonionic surfactant (III) is 0.01 to 10 parts by mass with respect to 100 parts by mass of the polymer (I). The present invention also relates to a painted article where the aqueous coating material is applied. Therefore, an aqueous coating material and a painted article capable of expressing stain resistance and weather resistance can be provided by reducing a water contact angle.Type: GrantFiled: June 8, 2010Date of Patent: May 27, 2014Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Shinsuke Haraguchi, Motomi Tanaka, Junichi Nakamura, Daisuke Natsui
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Publication number: 20120077911Abstract: The present invention relates to an aqueous coating material containing polymer (I), colloidal silica (II), and nonionic surfactant (III) with an HLB value of 16 or more. The polymer (I) is obtained by copolymerization of monomer mixture (M) that contains 0.2 to 10% by mass of monomer (a) having two or more radically polymerizable groups. The solid content of the colloidal silica (II) is 0.1 to 20 parts by mass with respect to 100 parts by mass of the polymer (I). The content of the nonionic surfactant (III) is 0.01 to 10 parts by mass with respect to 100 parts by mass of the polymer (I). The present invention also relates to a painted article where the aqueous coating material is applied. Therefore, an aqueous coating material and a painted article capable of expressing stain resistance and weather resistance can be provided by reducing a water contact angle.Type: ApplicationFiled: June 8, 2010Publication date: March 29, 2012Applicant: MITSUBISHI RAYO CO., LTD.Inventors: Shinsuke Haraguchi, Motomi Tanaka, Junichi Nakamura, Daisuke Natsui