Patents by Inventor Yasuyuki Mimura
Yasuyuki Mimura 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: 9376532Abstract: The present invention provides a novel quaternary ammonium salt compound that is excellent in atomization of a pigment dispersion and storage stability, a dispersant containing the quaternary ammonium salt compound, a use of the quaternary ammonium salt compound, and a process for producing the quaternary ammonium salt compound. The present invention relates to [1] a quaternary ammonium salt compound represented by the general formula (I); [2] a dispersant containing the compound of the above [1]; [3] a use of the compound of the above [1] for dispersing a pigment; and [4] a process for producing a quaternary ammonium salt compound represented by the general formula (I), including a step of reacting a halogenated alkyl ester compound represented by the general formula (II) with a polyamine compound represented by the general formula (III).Type: GrantFiled: December 27, 2013Date of Patent: June 28, 2016Assignee: KAO CORPORATIONInventors: Kyoichi Shirota, Tsuyoshi Egawa, Katsuhisa Inoue, Yasuyuki Mimura
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Publication number: 20150329674Abstract: The present invention provides a novel quaternary ammonium salt compound that is excellent in atomization of a pigment dispersion and storage stability, a dispersant containing the quaternary ammonium salt compound, a use of the quaternary ammonium salt compound, and a process for producing the quaternary ammonium salt compound. The present invention relates to [1] a quaternary ammonium salt compound represented by the general formula (I); [2] a dispersant containing the compound of the above [1]; [3] a use of the compound of the above [1] for dispersing a pigment; and [4] a process for producing a quaternary ammonium salt compound represented by the general formula (I), including a step of reacting a halogenated alkyl ester compound represented by the general formula (II) with a polyamine compound represented by the general formula (III).Type: ApplicationFiled: December 27, 2013Publication date: November 19, 2015Applicant: KAO CORPORATIONInventors: Kyoichi SHIROTA, Tsuyoshi EGAWA, Katsuhisa INOUE, Yasuyuki MIMURA
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Patent number: 7947853Abstract: The present invention relates to a process for producing an aliphatic primary amine or an aliphatic secondary amine from an aliphatic alcohol with a high catalytic activity and a high selectivity. In the process for producing an aliphatic amine according to the present invention, a linear, branched, or cyclic aliphatic alcohol having 6 to 22 carbon atoms is contacted with ammonia and hydrogen in the presence of a catalyst formed by supporting a ruthenium component on at least one material selected from the group consisting of (B) a zirconia-containing composite oxide and (C) zirconia surface-treated with a metal by hydrolysis of (A) a ruthenium compound.Type: GrantFiled: November 5, 2007Date of Patent: May 24, 2011Assignee: Kao CorporationInventors: Yuuta Suzuki, Yasuyuki Mimura, Tetsuaki Fukushima
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Publication number: 20100029988Abstract: The present invention relates to a process for producing an aliphatic primary amine or an aliphatic secondary amine from an aliphatic alcohol with a high catalytic activity and a high selectivity. In the process for producing an aliphatic amine according to the present invention, a linear, branched, or cyclic aliphatic alcohol having 6 to 22 carbon atoms is contacted with ammonia and hydrogen in the presence of a catalyst formed by supporting a ruthenium component on at least one material selected from the group consisting of (B) a zirconia-containing composite oxide and (C) zirconia surface-treated with a metal by hydrolysis of (A) a ruthenium compound.Type: ApplicationFiled: November 5, 2007Publication date: February 4, 2010Applicant: KAO CORPORATIONInventors: Yuuta Suzuki, Yasuyuki Mimura, Tetsuaki Fukushima
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Patent number: 6080891Abstract: The present invention provides a process for preparing a high-quality aliphatic nitrile in a high yield at a low cost without the dissolution of a catalyst in the product, which comprises reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a solid catalyst which exhibits a high activity even at a reaction temperature of as low as 300.degree. C. or below and is difficultly soluble in the reaction fluid; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process. Namely, the present invention provides a process for the preparation of an aliphatic nitrile by reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a composite oxide catalyst comprising titanium oxide as the main component; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process.Type: GrantFiled: August 20, 1999Date of Patent: June 27, 2000Assignee: Kao CorporationInventors: Michio Terasaka, Yasuyuki Mimura, Hiroshi Abe
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Patent number: 6054620Abstract: The present invention provides a process for producing a tertiary aliphatic amine having high quality having little non-amines such as esters and alcohols, which is less colored, and which can be converted into a derivative without turbidity.That is, the present invention provides the process which comprises the steps of adding at least one alkali substance of potassium hydroxide and sodium hydroxide or an aqueous solution thereof to the crude tertiary amine product mixture and distilling the mixture to obtain the tertiary amine having a high quality.In addition, the tertiary amine has the formula: R.sub.1 R.sub.2 N--R.sub.3, wherein R.sub.1 and R.sub.2 being a saturated or unsaturated hydrocarbon having 6 to 28 carbon atoms, R.sub.3 being a saturated or unsaturated hydrocarbon having 1 to 5 carbon atoms.Type: GrantFiled: September 28, 1998Date of Patent: April 25, 2000Assignee: Kao CorporationInventors: Hideki Taniguchi, Yasuyuki Mimura, Hiroshi Abe
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Patent number: 6005134Abstract: The present invention provides a process for preparing a high-quality aliphatic nitrile in a high yield at a low cost without the dissolution of a catalyst in the product, which comprises reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a solid catalyst which exhibits a high activity even at a reaction temperature of as low as 300.degree. C. or below and is difficultly soluble in the reaction fluid; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process. Namely, the present invention provides a process for the preparation of an aliphatic nitrile by reacting an aliphatic carboxylic acid, a lower alkyl ester thereof or a fatty acid glyceride with ammonia in the presence of a composite oxide catalyst comprising titanium oxide as the main component; and a process for the preparation of amines by hydrogenating the aliphatic nitrile prepared by the above process.Type: GrantFiled: May 19, 1999Date of Patent: December 21, 1999Assignee: Kao CorporationInventors: Michio Terasaka, Yasuyuki Mimura, Hiroshi Abe