Patents by Inventor Nobuhisa Miyake

Nobuhisa Miyake 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).

  • Patent number: 10968168
    Abstract: An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: April 6, 2021
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Nobuhisa Miyake, Koichi Nakaoka, Tsubasa Uematsu, Yusuke Sakurai, Yusuke Ishii, Kazuhiro Takagaki, Takeharu Sasaki, Yuji Kosugi, Atsushi Ohkubo, Masaaki Shinohata
  • Publication number: 20200216387
    Abstract: An isocyanate production method is characterized by having: a carbamation step in which a carbonic acid ester, an inorganic acid salt of an amino acid derivative, and a basic compound are reacted to obtain a reaction mixture containing a carbamic acid ester derived from the carbonic acid ester, a hydroxy compound derived from the carbonic acid ester, and the carbonic acid ester; and a thermal decomposition step in which the carbamic acid ester is subjected to a thermal decomposition reaction to obtain an isocyanate.
    Type: Application
    Filed: May 15, 2018
    Publication date: July 9, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Nobuhisa MIYAKE, Yuji KOSUGI, Yusuke SAKURAI, Masaaki SHINOHATA
  • Publication number: 20200115327
    Abstract: An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.
    Type: Application
    Filed: May 15, 2018
    Publication date: April 16, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Nobuhisa MIYAKE, Koichi NAKAOKA, Tsubasa UEMATSU, Yusuke SAKURAI, Yusuke ISHII, Kazuhiro TAKAGAKI, Takeharu SASAKI, Yuji KOSUGI, Atsushi OHKUBO, Masaaki SHINOHATA
  • Publication number: 20200048405
    Abstract: The present invention provides an isocyanate composition including an isocyanate compound having an ethylenically unsaturated bond, a compound represented by formula (1) (in the formula, R1 represents an a-valent organic group, R2 represents a monovalent organic group, a represents an integer of 1 or 2), and/or a compound having a UV absorption in a spectral region of a decamer or higher isocyanate measured by gel permeation chromatography; and an isocyanate composition including an isocyanate compound having an ethylenically unsaturated bond, or a compound having at least one unsaturated bond other than an unsaturated bond constituting an aromatic ring or an inert compound such as a hydrocarbon compound or the like and having a carbon-carbon unsaturated bond other than an unsaturated bond constituting an aromatic ring; or the like.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 13, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Nobuhisa MIYAKE, Masaaki SHINOHATA, Atsushi OHKUBO, Koichi NAKAOKA, Yuji KOSUGI
  • Publication number: 20200048403
    Abstract: An isocyanate composition according to the present invention contains an isocyanate compound of formula (1) and/or (2) (wherein R1 represents a hydrogen or a monovalent organic group, and R2 represents a monovalent organic group), and, relative to the total mass of the isocyanate compound in the composition, 1.0 ppm by mass to 10% by mass of a compound of formula (3): R13—(COO—R14)a (wherein R13 represents an organic group with a valence of a, R14 represents a monovalent organic group, and a represents an integer of 1 or 2), which is different from the isocyanate compound, and/or, 1.0 ppm by mass to 10% by mass of a compound having an UV absorption in an area of decamer or higher isocyanates in a measurement spectrum of gel permeation chromatography.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 13, 2020
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Nobuhisa MIYAKE, Masaaki SHINOHATA, Atsushi OHKUBO, Koichi NAKAOKA, Yuji KOSUGI
  • Publication number: 20190233371
    Abstract: The present invention relates to an isothiocyanate production method using an organic primary amine and thiourea as starting materials; to a composition for transporting and storing an N-substituted O-substituted thiocarbamate that includes an N-substituted O-substituted thiocarbamate and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the carbamate groups of the N-substituted O-substituted thiocarbamate being in the range of 1 to 100; to a composition for transporting and storing a compound with a thioureido group that includes a compound with a thioureido group and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the thioureido groups of the compound with a thioureido group being in the range of 1 to 100; and to an isothiocyanate composition containing an isothiocyanate and a compound with a specific functional group.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Shinohata, Yuji Kosugi, Nobuhisa Miyake
  • Publication number: 20190225739
    Abstract: An isocyanate composition according to the present invention contains: a difunctional or more-functional isocyanate compound; and 1.0 ppm by mass to 1.0×104 ppm by mass, based on the isocyanate compound, of a compound having at least one unsaturated bond excluding unsaturated bonds constituting an aromatic ring, the compound being different from the isocyanate.
    Type: Application
    Filed: October 13, 2017
    Publication date: July 25, 2019
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Nobuhisa MIYAKE, Masaaki SHINOHATA, Atsushi OHKUBO
  • Patent number: 10308601
    Abstract: The present invention relates to an isothiocyanate production method using an organic primary amine and thiourea as starting materials; to a composition for transporting and storing an N-substituted O-substituted thiocarbamate that includes an N-substituted O-substituted thiocarbamate and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the carbamate groups of the N-substituted O-substituted thiocarbamate being in the range of 1 to 100; to a composition for transporting and storing a compound with a thioureido group that includes a compound with a thioureido group and a hydroxy compound, the equivalent weight ratio of hydroxy groups of the hydroxy compound with respect to the thioureido groups of the compound with a thioureido group being in the range of 1 to 100; and to an isothiocyanate composition containing an isothiocyanate and a compound with a specific functional group.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: June 4, 2019
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Yuji Kosugi, Nobuhisa Miyake
  • Patent number: 10301417
    Abstract: The present invention relates to a polyisocyanate composition comprising, on the basis of the total mass of the polyisocyanate composition, 97 mass % or more of a polyisocyanate; and 2.0 mass ppm to 1.0×104 mass ppm of a compound represented by the formula (1): wherein R1 is an aliphatic group having 6 to 70 carbon atoms, R2 is an aromatic ring, a is an integer of 1 to 5, b is an integer of 0 to 4, and the sum of a and b is 2 to 5.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 28, 2019
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Patent number: 10125212
    Abstract: The present invention relates to a polyisocyanate composition comprising, on the basis of the total mass of the polyisocyanate composition, 97 weight % or more of a polyisocyanate, and 2.0 mass ppm or more and 1.0×104 mass ppm or less of a compound having at least one unsaturated bond in which the compound is a different compound from the polyisocyanate, or 5.0 mass ppm or more and 2.0×104 mass ppm or less of at least one inactive compound selected from the group consisting of a hydrocarbon compound, an ether compound, a sulfide compound, a halogenated hydrocarbon compound, a Si-containing hydrocarbon compound, a Si-containing ether compound, and a Si-containing sulfide compound.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 13, 2018
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Patent number: 10118110
    Abstract: The present invention relates to a reaction method comprising a step of supplying a liquid containing at least one raw material compound and a low-boiling compound having a standard boiling point lower than a standard boiling point of the raw material compound to a flow channel, a step of heating the liquid to produce a liquid reaction product and a gas component by a reaction of the raw material compound, and a step of separating a liquid phase containing the reaction product from a gas phase containing the gas component and the low-boiling compound.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: November 6, 2018
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Takeharu Sasaki, Nobuhisa Miyake
  • Patent number: 9950273
    Abstract: The present invention provides a separation method of separating (A) and (B), comprising: a step of separating at least either an active hydrogen-containing compound (A) or a compound (B) that reversibly reacts with (A) from a mixture containing (A) and (B) by distillation in a multistage distillation column; and a step of supplying the mixture to an inactive region formed within the multistage distillation column.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: April 24, 2018
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Publication number: 20180105489
    Abstract: Disclosed is a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).
    Type: Application
    Filed: December 13, 2017
    Publication date: April 19, 2018
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Patent number: 9884810
    Abstract: Disclosed is a method for separating, with a multi-stage distillation column, a mixture containing an active hydrogen-containing compound (A) and a compound (B) that reversibly reacts with the active hydrogen containing compound (A), the method comprising distillation-separating the active hydrogen-containing compound (A) and the compound (B) with the multi-stage distillation column in the presence of an intermediate-boiling-point inactive compound (C) that has a normal boiling point between a normal boiling point of the active hydrogen-containing compound (A) and a normal boiling point of the compound (B) and is chemically inactive for both of the (A) and the compound (B).
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: February 6, 2018
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Patent number: 9844775
    Abstract: An alkyl tin compound having an alkyl group bonded to a tin atom, wherein the alkyl group is a branched alkyl or cyclic group-substituted alkyl group, the branched alkyl group being an alkyl group branched at at least one carbon atom of the first to third carbon atoms counting from the tin atom, and the cyclic group-substituted alkyl group being an alkyl group having a cyclic group bonded at at least one carbon atom of the first to third carbon atoms counting from the tin atom.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: December 19, 2017
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Nobuhisa Miyake, Masaaki Shinohata, Budianto Nishiyama, Atsushi Okubo
  • Publication number: 20170298169
    Abstract: The present invention relates to a polyisocyanate composition comprising, on the basis of the total mass of the polyisocyanate composition, 97 weight % or more of a polyisocyanate, and 2.0 mass ppm or more and 1.0×104 mass ppm or less of a compound having at least one unsaturated bond in which the compound is a different compound from the polyisocyanate, or 5.0 mass ppm or more and 2.0×104 mass ppm or less of at least one inactive compound selected from the group consisting of a hydrocarbon compound, an ether compound, a sulfide compound, a halogenated hydrocarbon compound, a Si-containing hydrocarbon compound, a Si-containing ether compound, and a Si-containing sulfide compound.
    Type: Application
    Filed: May 8, 2017
    Publication date: October 19, 2017
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Patent number: 9714215
    Abstract: A method for producing an isocyanate, comprising: a carbamation step of generating an N-substituted carbamate from an organic primary amine, urea and an organic hydroxy compound according to a carbamation reaction, and then recovering a first gaseous phase component containing the urea and/or a compound having a carbonyl group derived from the urea, the organic hydroxy compound, and ammonia; a condensation step of condensing the first gaseous phase component with a condenser; an isocyanate production step of producing an isocyanate by subjecting the N-substituted carbamate to pyrolysis; an ammonia absorption step of allowing a second gaseous phase component containing ammonia recovered as a gaseous phase component from the condenser as a main component, to be absorbed by absorption water, and generating gas-absorbed water; and an ammonia stripping step of heating the gas-absorbed water to separate ammonia from the gas-absorbed water.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: July 25, 2017
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Kouji Takeuchi, Naoki Fujimoto, Nobuhisa Miyake
  • Patent number: 9637445
    Abstract: An object of the present invention is to provide an isocyanate production process, which is free of the various problems found in the prior art, and which uses a composition containing a carbamic acid ester and an aromatic hydroxy compound when producing isocyanate without using phosgene, as well as a carbamic acid ester composition for transferring or storing carbamic acid ester. The present invention discloses an isocyanate production process including specific steps and using a composition containing a carbamic acid ester and an aromatic hydroxy compound, as well as a composition for transfer or storage of carbamic acid ester comprising the carbamic acid ester and the specific aromatic hydroxy compound.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: May 2, 2017
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Nobuhisa Miyake
  • Publication number: 20160228863
    Abstract: An alkyl tin compound having an alkyl group bonded to a tin atom, wherein the alkyl group is a branched alkyl or cyclic group-substituted alkyl group, the branched alkyl group being an alkyl group branched at at least one carbon atom of the first to third carbon atoms counting from the tin atom, and the cyclic group-substituted alkyl group being an alkyl group having a cyclic group bonded at at least one carbon atom of the first to third carbon atoms counting from the tin atom.
    Type: Application
    Filed: September 22, 2014
    Publication date: August 11, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Nobuhisa Miyake, Masaaki Shinohata, Budianto Nishiyama, Atsushi Okubo
  • Publication number: 20160166950
    Abstract: The present invention relates to a reaction method comprising a step of supplying a liquid containing at least one raw material compound and a low-boiling compound having a standard boiling point lower than a standard boiling point of the raw material compound to a flow channel, a step of heating the liquid to produce a liquid reaction product and a gas component by a reaction of the raw material compound, and a step of separating a liquid phase containing the reaction product from a gas phase containing the gas component and the low-boiling compound.
    Type: Application
    Filed: July 30, 2014
    Publication date: June 16, 2016
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Masaaki Shinohata, Takeharu Sasaki, Nobuhisa Miyake