Patents by Inventor Akihiro Gotou
Akihiro Gotou 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: 20220186015Abstract: A method of producing a resin modifier, the method comprising a process of polymerizing an ethylene unsaturated monomer in the presence of a cellulose nanofiber, the cellulose nanofiber being reacted with an amine or a quaternary ammonium salt compound.Type: ApplicationFiled: February 26, 2020Publication date: June 16, 2022Inventors: Daisuke KAMIYA, Akihiro GOTOU, Shun NAKANO, Shiroshi MATSUKI, Shuji FUJISAWA, Tsuguyuki SAITO, Ryo SAITO
-
Publication number: 20220074131Abstract: A water repellent agent composition contains a compound represented by the following General Formula (1) and a silicone resin: wherein in Formula (1), R31 represents a monovalent hydrocarbon group having 4 to 30 carbon atoms, R32 represents a hydrogen, a monovalent hydrocarbon group having 1 to 30 carbon atoms, or an organic group represented by —R36—N(R37)—R38 (in the formula, R36 represents a divalent hydrocarbon group having 1 to 30 carbon atoms, and R37 and R38 each independently represent a hydrogen or a monovalent hydrocarbon group having 1 to 30 carbon atoms), R33 represents a divalent hydrocarbon group having 1 to 30 carbon atoms, R34 and R35 each independently represent a hydrogen or a monovalent hydrocarbon group having 1 to 30 carbon atoms, a represents an integer of 0 to 2, and when a is 2, the plurality of R32 and R33 each may be identical or different.Type: ApplicationFiled: December 17, 2019Publication date: March 10, 2022Inventors: Akihiro GOTOU, Kazuhiko KOJIMA, Seiji HORI
-
Publication number: 20210403836Abstract: A semiconductor cleaning agent containing a sulfonic acid group-containing polymer, wherein a content of at least one metal selected from the group consisting of Na, Al, K, Ca and Fe is 0.7 ppm or less.Type: ApplicationFiled: October 30, 2019Publication date: December 30, 2021Applicant: TOAGOSEI CO., LTD.Inventors: Ryosuke YAMAUCHI, Akihiro GOTOU
-
Publication number: 20210380739Abstract: A fluorine-containing elastomer including a vinylidene fluoride unit and an unsaturated ether unit selected from a unit based on a monomer (1) represented by the general formula (1): CH2?CFCF2—O—Rf1 and a unit based on a monomer (2) represented by the general formula (2): CH2?CF—O—Rf2, and having a glass transition temperature of 20° C. or lower, a crosslinkable composition including the fluorine-containing elastomer, and a molded article obtained from the fluorine-containing elastomer or the crosslinkable composition.Type: ApplicationFiled: October 18, 2019Publication date: December 9, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro FURUTANI, Akihiro GOTOU, Masaki IRIE
-
Publication number: 20210284593Abstract: An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound.Type: ApplicationFiled: June 26, 2019Publication date: September 16, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Naoyuki HOSHIYA, Akihiro GOTOU, Yosuke KISHIKAWA
-
Publication number: 20210269383Abstract: An object of the present invention is to provide a novel method for producing an ?-fluoroacrylic acid ester compound. This problem is solved by a method for producing a compound represented by formula (1), wherein R1 and R2 are identical or different, and each represents an alkyl group or the like; and R3 is an alkyl group or the like, the method comprising step A of reacting a compound represented by formula (2) with R3—OH (3) and carbon monoxide in the presence of palladium, a double bond-containing compound (?), a diphosphine compound (?), and a base, to obtain the compound represented by formula (1) above.Type: ApplicationFiled: June 21, 2019Publication date: September 2, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro GOTOU, Yosuke KISHIKAWA, Naoyuki HOSHIYA, Makoto MATSUURA
-
Patent number: 10941315Abstract: The first water repellent agent composition contains amino-modified silicone, a silicone resin, and a polyfunctional isocyanate compound. The second water repellent agent composition comprising dimethylpolysiloxane having a hydroxyl group and/or an alkoxy group having 1 to 3 carbon atoms, an amino group-containing silane coupling agent, a silicone resin, and a polyfunctional isocyanate compound.Type: GrantFiled: April 17, 2017Date of Patent: March 9, 2021Assignees: NICCA Chemical Co., Ltd., Dow Toray Co., Ltd.Inventors: Akihiro Gotou, Kousuke Maeda, Yoshiki Tsuge, Kazuhiko Kojima, Seiji Hori
-
Publication number: 20200332148Abstract: A water repellent agent composition contains amino-modified silicone, a silicone resin, and alkylpolysiloxane. An amount of the alkylpolysiloxane mixed is 500 to 15,000 parts by mass with respect to 100 parts by mass of an amount of the amino-modified silicone mixed. A method for producing a water-repellent textile product includes a step of treating fibers with a treatment liquid including the water repellent agent composition.Type: ApplicationFiled: December 20, 2018Publication date: October 22, 2020Inventors: Akihiro GOTOU, Kousuke MAEDA, Yoshiki TSUGE, Kazuhiko KOJIMA, Seiji HORI
-
Publication number: 20190375897Abstract: The first water repellent agent composition contains amino-modified silicone, a silicone resin, and a polyfunctional isocyanate compound. The second water repellent agent composition comprising dimethylpolysiloxane having a hydroxyl group and/or an alkoxy group having 1 to 3 carbon atoms, an amino group-containing silane coupling agent, a silicone resin, and a polyfunctional isocyanate compound.Type: ApplicationFiled: April 17, 2017Publication date: December 12, 2019Applicants: NICCA Chemical Co., Ltd., Dow Corning Toray Co., Ltd.Inventors: Akihiro GOTOU, Kousuke MAEDA, Yoshiki TSUGE, Kazuhiko KOJIMA, Seiji HORI
-
Patent number: 10173960Abstract: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein Ra represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluorine, alkyl, perfluoroalkyl, or hydrogen); and (B) aldehyde, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.Type: GrantFiled: April 8, 2016Date of Patent: January 8, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito Hamada, Makoto Matsuura, Asako Yoshiyama, Akihiro Gotou, Manaho Miyazaki, Yosuke Kishikawa
-
Patent number: 9950984Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R1 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).Type: GrantFiled: June 6, 2017Date of Patent: April 24, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
-
Publication number: 20180099922Abstract: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein Ra represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluorine, alkyl, perfluoroalkyl, or hydrogen); and (B) aldehyde, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.Type: ApplicationFiled: April 8, 2016Publication date: April 12, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomohito HAMADA, Makoto MATSUURA, Asako YOSHIYAMA, Akihiro GOTOU, Manaho MIYAZAKI, Yosuke KISHIKAWA
-
Publication number: 20170267626Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).Type: ApplicationFiled: June 6, 2017Publication date: September 21, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro GOTOU, Manaho MIYAZAKI, Sumi ISHIHARA, Takashi NAMIKAWA, Tatsuya OHTSUKA, Yosuke KISHIKAWA
-
Patent number: 9738589Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).Type: GrantFiled: June 15, 2016Date of Patent: August 22, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya Ohtsuka, Akihiro Gotou, Sumi Ishihara, Yoshihiro Yamamoto, Akinori Yamamoto, Yoshichika Kuroki, Yuzo Komatsu, Yousuke Kishikawa
-
Patent number: 9732027Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R1 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).Type: GrantFiled: December 26, 2014Date of Patent: August 15, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
-
Patent number: 9701614Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R1 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).Type: GrantFiled: December 26, 2014Date of Patent: July 11, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro Gotou, Manaho Miyazaki, Sumi Ishihara, Takashi Namikawa, Tatsuya Ohtsuka, Yosuke Kishikawa
-
Publication number: 20160318842Abstract: An object of the present invention is to provide a process for producing ?-fluoroacrylic acid esters at a high starting material conversion and a high yield. The present invention provides, as a means to achieve the object, a process for producing a compound represented by formula (1): wherein R2 and R2 are the same or different and each represent alkyl, fluoroalkyl, aryl optionally substituted with at least one substituent, halogen, or hydrogen; and R3 represents alkyl, fluoroalkyl, or aryl optionally substituted with at least one substituent, the process comprising step A of reacting a compound represented by formula (2): wherein the symbols are as defined above, with carbon monoxide and an alcohol represented by formula (3): R3—OH ??(3) wherein the symbol is as defined above, in the presence of a transition metal complex catalyst containing at least one bidentate phosphine ligand and a base to thereby obtain the compound represented by formula (1).Type: ApplicationFiled: December 26, 2014Publication date: November 3, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Akihiro GOTOU, Manaho MIYAZAKI, Sumi ISHIHARA, Takashi NAMIKAWA, Tatsuya OHTSUKA, Yosuke KISHIKAWA
-
Publication number: 20160297740Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).Type: ApplicationFiled: June 15, 2016Publication date: October 13, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya OHTSUKA, Akihiro GOTOU, Sumi ISHIHARA, Yoshihiro YAMAMOTO, Akinori YAMAMOTO, Yoshichika KUROKI, Yuzo KOMATSU, Yousuke KISHIKAWA
-
Patent number: 9388117Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).Type: GrantFiled: August 30, 2013Date of Patent: July 12, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya Ohtsuka, Akihiro Gotou, Sumi Ishihara, Yoshihiro Yamamoto, Akinori Yamamoto, Yoshichika Kuroki, Yuzo Komatsu, Yousuke Kishikawa
-
Publication number: 20150191413Abstract: The object of the present invention is to provide a process for producing ?-fluoroacrylic acid ester at a high starting material conversion, high selectivity, and high yield. The present invention provides a process for producing the compound represented by the formula (1) wherein R represents alkyl optionally substituted with one or more fluorine atoms, the process comprising step A of reacting a compound represented by the formula (2) wherein X represents a bromine atom or a chlorine atom with an alcohol represented by the formula (3) wherein the symbol is as defined above, and carbon monoxide in the presence of a transition metal catalyst and a base to thereby obtain the compound represented by the formula (1).Type: ApplicationFiled: August 30, 2013Publication date: July 9, 2015Inventors: Tatsuya Ohtsuka, Akihiro Gotou, Sumi Ishihara, Yoshihiro Yamamoto, Akinori Yamamoto, Yoshichika Kuroki, Yuzo Komatsu, Yousuke Kishikawa