Patents by Inventor Yoshiyuki Himeno
Yoshiyuki Himeno 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: 10793448Abstract: Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.Type: GrantFiled: September 5, 2018Date of Patent: October 6, 2020Assignee: Lucite International UK LimitedInventors: Yoshiyuki Himeno, Ken Ooyachi, Masahide Kondo
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Publication number: 20190062181Abstract: Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.Type: ApplicationFiled: September 5, 2018Publication date: February 28, 2019Inventors: Yoshiyuki Himeno, Ken Ooyachi, Masahide Kondo
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Patent number: 10093559Abstract: Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.Type: GrantFiled: February 18, 2013Date of Patent: October 9, 2018Assignee: LUCITE INTERNATIONAL UK LIMITEDInventors: Yoshiyuki Himeno, Ken Ooyachi, Masahide Kondo
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Publication number: 20150053616Abstract: Disclosed are methods for dehydrating a water containing source of formaldehyde in which water is separated from the water containing source of formaldehyde using a zeolite membrane. In certain aspects, the water containing source of formaldehyde includes a separation enhancer having a relative static permittivity ranging from 2.5 to 20, and the water containing source of formaldehyde may further include methanol. In certain aspects, (meth)acrylic acid alkyl ester may be produced using the dehydrated source of formaldehyde.Type: ApplicationFiled: February 18, 2013Publication date: February 26, 2015Inventors: Yoshiyuki Himeno, Ken Ooyachi, Masahide Kondo
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Patent number: 8389760Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: GrantFiled: November 8, 2011Date of Patent: March 5, 2013Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Publication number: 20120053363Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: ApplicationFiled: November 8, 2011Publication date: March 1, 2012Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Toshiya YASUKAWA, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Patent number: 8088945Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: GrantFiled: December 10, 2010Date of Patent: January 3, 2012Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Patent number: 8088946Abstract: The present invention provides: a palladium-containing supported catalyst which is used for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in high selectivity; a method for manufacturing the catalyst; and a method for producing an ?,?-unsaturated carboxylic acid in high selectivity. In particular, the present invention resides in a method for manufacturing a palladium-containing supported catalyst for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde, comprising the step of reducing palladium oxide contained in a catalyst precursor wherein at least the palladium oxide is supported on a carrier. By using such a palladium-containing supported catalyst, an ?,?-unsaturated carboxylic acid is produced through liquid-phase oxidation of an olefin or an ?,?-unsaturated aldehyde with molecular oxygen.Type: GrantFiled: November 14, 2005Date of Patent: January 3, 2012Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Wataru Ninomiya, Ken Ooyachi
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Patent number: 8058473Abstract: Disclosed is a method for producing an ?, ?-unsaturated carboxylic acid from an olefin or an ?, ?-unsaturated aldehyde, while suppressing dissolution of a silica carrier, which is a carrier for a silica-supported noble metal-containing catalyst, in a water-containing solvent. Specifically disclosed is a method for producing an ?, ?-unsaturated carboxylic acid through oxidation of an olefin or an ?, ?-unsaturated aldehyde in a water-containing solvent in the presence of a silica-supported noble metal-containing catalyst in a reactor, in which at least one of silicic acid and ions thereof is supplied into the reactor.Type: GrantFiled: December 26, 2007Date of Patent: November 15, 2011Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Toshiki Matsui, Yoshiyuki Himeno, Kazunori Matake
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Patent number: 7994091Abstract: Disclosed is a palladium-containing catalyst for producing an ?, ?-unsaturated carboxylic acid from an olefin or an ?, ?-unsaturated aldehyde in high productivity. Also disclosed are a method for producing such a catalyst, and a method for producing an ?, ?-unsaturated carboxylic acid in high productivity. Specifically, a palladium-containing catalyst is produced by a method containing a step in which palladium in an oxidation state is reduced by a compound (A) which is represented by the following formula (1).Type: GrantFiled: December 26, 2006Date of Patent: August 9, 2011Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Ken Ooyachi, Toshiya Yasukawa
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Publication number: 20110082315Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: ApplicationFiled: December 10, 2010Publication date: April 7, 2011Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Toshiya YASUKAWA, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Publication number: 20100234639Abstract: Disclosed is a palladium-containing catalyst for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in high productivity. Also disclosed are a method for producing such a catalyst, and a method for producing an ?,?-unsaturated carboxylic acid in high productivity. Specifically, a palladium-containing catalyst is produced by a method containing a step in which palladium in an oxidation state is reduced by a compound (A) which is represented by the following formula (1).Type: ApplicationFiled: December 26, 2006Publication date: September 16, 2010Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Ken Ooyachi, Toshiya Yasukawa
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Publication number: 20100137638Abstract: Disclosed is a method for producing an ?, ?-unsaturated carboxylic acid from an olefin or an ?, ?-unsaturated aldehyde, while suppressing dissolution of a silica carrier, which is a carrier for a silica-supported noble metal-containing catalyst, in a water-containing solvent. Specifically disclosed is a method for producing an ?, ?-unsaturated carboxylic acid through oxidation of an olefin or an ?, ?-unsaturated aldehyde in a water-containing solvent in the presence of a silica-supported noble metal-containing catalyst in a reactor, in which at least one of silicic acid and ions thereof is supplied into the reactor.Type: ApplicationFiled: December 26, 2007Publication date: June 3, 2010Inventors: Toshiki Matsui, Yoshiyuki Himeno, Kazunori Matake
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Patent number: 7498462Abstract: The object of the present invention is to provide a method for producing an ?,?-unsaturated carboxylic acid in higher selectivity. The present invention resides in a method for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in liquid phase by using a noble metal-containing catalyst and by causing a compound (A) having an acid dissociation exponent (pKa) of less than 4 to be present in the liquid phase.Type: GrantFiled: February 7, 2005Date of Patent: March 3, 2009Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Himeno, Akio Takeda, Seiichi Kawato, Wataru Ninomiya
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Publication number: 20090023952Abstract: Disclosed is a palladium-containing catalyst which enables to produce an ?,?-unsaturated carboxylic acid in high selectivity from an olefin or an ?,?-unsaturated aldehyde. Also disclosed are a method for producing such a catalyst and a method for producing an ?,?-unsaturated carboxylic acid using such a catalyst. Specifically disclosed is a palladium-containing catalyst containing 0.001 to 0.25 mole of antimony element to 1 mole of palladium element or a palladium-containing catalyst containing palladium element which composes a metal, tellurium element, and bismuth element.Type: ApplicationFiled: February 17, 2006Publication date: January 22, 2009Applicant: Mitsubishi Rayon co., Ltd.Inventors: Toshiya Yasukawa, Toshiki Matsui, Ken Ooyachi, Yoshiyuki Himeno, Wataru Ninomiya
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Publication number: 20080306298Abstract: The present invention provides: a palladium-containing supported catalyst which is used for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in high selectivity; a method for manufacturing the catalyst; and a method for producing an ?,?-unsaturated carboxylic acid in high selectivity. In particular, the present invention resides in a method for manufacturing a palladium-containing supported catalyst for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde, comprising the step of reducing palladium oxide contained in a catalyst precursor wherein at least the palladium oxide is supported on a carrier. By using such a palladium-containing supported catalyst, an ?,?-unsaturated carboxylic acid is produced through liquid-phase oxidation of an olefin or an ?,?-unsaturated aldehyde with molecular oxygen.Type: ApplicationFiled: November 14, 2005Publication date: December 11, 2008Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Yoshiyuki Himeno, Wataru Ninomiya, Ken Ooyachi
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Patent number: 7446223Abstract: The present invention provides: a palladium-containing catalyst which is used for highly selectively or highly productively producing an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an olefin or in that way producing an ?,?-unsaturated carboxylic acid from an ?,?-unsaturated aldehyde; a method for producing the catalyst; and a method for highly selectively or highly productively producing an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an olefin or in that way producing an ?,?-unsaturated carboxylic acid from an ?,?-unsaturated aldehyde. In particular, the present invention resides in a palladium-containing catalyst comprising 0.001 to 0.40 mole of tellurium metal to 1.0 mole of palladium metal. This catalyst can be preferably produced by a method having a step of reducing a compound containing palladium atom in its oxidized state and tellurium atom in its oxidized state by a reducing agent.Type: GrantFiled: June 2, 2005Date of Patent: November 4, 2008Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Wataru Ninomiya, Yoshiyuki Himeno, Yuji Fujimori
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Publication number: 20080064899Abstract: The present invention provides a method for producing an ?,?-unsaturated carboxylic acid in high yield. In particular, the present invention resides in a method for producing an ?,?-unsaturated carboxylic acid by oxidation of an olefin or an ?,?-unsaturated aldehyde with molecular oxygen in liquid phase in the presence of a catalyst containing at least palladium, wherein at least one compound selected from the group consisting of p-methoxyphenol, 4,4?-dihydroxytetraphenylmethane, 1,1,1-tris(p-hydroxyphenyl)ethane, compounds having an N-oxyl group in the molecule and compounds having an N-nitrosyl group in the molecule is caused to be coexistent.Type: ApplicationFiled: May 30, 2005Publication date: March 13, 2008Inventors: Seiichi Kawato, Akio Takeda, Yoshiyuki Himeno
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Publication number: 20070238903Abstract: The present invention provides: a palladium-containing catalyst which is used for highly selectively or highly productively producing an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an olefin or in that way producing an ?,?-unsaturated carboxylic acid from an ?,?-unsaturated aldehyde; a method for producing the catalyst; and a method for highly selectively or highly productively producing an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid from an olefin or in that way producing an ?,?-unsaturated carboxylic acid from an ?,?-unsaturated aldehyde. In particular, the present invention resides in a palladium-containing catalyst comprising 0.001 to 0.40 mole of tellurium metal to 1.0 mole of palladium metal. This catalyst can be preferably produced by a method having a step of reducing a compound containing palladium atom in its oxidized state and tellurium atom in its oxidized state by a reducing agent.Type: ApplicationFiled: June 2, 2005Publication date: October 11, 2007Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Wataru Ninomiya, Yoshiyuki Himeno, Yuji Fujimori
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Publication number: 20070142666Abstract: The object of the present invention is to provide a method for producing an ?,?-unsaturated carboxylic acid in higher selectivity. The present invention resides in a method for producing an ?,?-unsaturated carboxylic acid from an olefin or an ?,?-unsaturated aldehyde in liquid phase by using a noble metal-containing catalyst and by causing a compound (A) having an acid dissociation exponent (pKa) of less than 4 to be present in the liquid phase.Type: ApplicationFiled: February 7, 2005Publication date: June 21, 2007Applicant: Mitsubishi Rayon Co., LtdInventors: Yoshiyuki Himeno, Akio Takeda, Seiichi Kawato, Wataru Ninomiya