Patents by Inventor Kazumi Mizutani

Kazumi Mizutani 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: 20110288240
    Abstract: A phosphazene-supported catalyst in which a support is bonded to a group represented by the general formula (1): wherein n, Zn?, a, b, c, d, R, R1 and D are all defined. The phosphazene-supported catalyst is highly effective to catalyze various organic reactions, and further has no reduction of activity even after recovery and reuse of the catalyst, thus it being economically advantageous. In addition, the polymerization of cyclic monomers, substitution of substituents, carbon-carbon bond forming reactions and the like can be conducted with extremely high efficiency.
    Type: Application
    Filed: August 4, 2011
    Publication date: November 24, 2011
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Naritoshi YOSHIMURA, Shinji Kiyono, Kazumi Mizutani, Isao Hara, Takaomi Hayashi, Tadahito Nobori, Yoshihiro Yamamoto, Miyuki Konno, Yoshihisa Inoue, Akira Matsuura, Tuneyuki Ohkubo
  • Patent number: 7714087
    Abstract: A polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith, a process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof. The polar group-containing olefin copolymer comprises a constituent unit derived from an ?-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation. The polar group-containing olefin copolymer can be prepared by polymerizing the ?-olefin with the polar group-containing monomer and/or the macromonomer in the presence of a metallocene catalyst.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: May 11, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Junichi Imuta, Norio Kashiwa, Seiji Ota, Satoru Moriya, Tadahito Nobori, Kazumi Mizutani
  • Publication number: 20090137757
    Abstract: A polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith, a process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof. The polar group-containing olefin copolymer comprises a constituent unit derived from an ?-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation. The polar group-containing olefin copolymer can be prepared by polymerizing the ?-olefin with the polar group-containing monomer and/or the macromonomer in the presence of a metallocene catalyst.
    Type: Application
    Filed: May 12, 2008
    Publication date: May 28, 2009
    Inventors: Junichi Imuta, Norio Kashiwa, Seiji Ota, Satoru Moriya, Tadahito Nobori, Kazumi Mizutani
  • Publication number: 20080318767
    Abstract: A phosphazene-supported catalyst in which a support is bonded to a group represented by the general formula (1): wherein n, Zn?, a, b, c, d, R, R1 and D are all defined. The phosphazene-supported catalyst is highly effective to catalyze various organic reactions, and further has no reduction of activity even after recovery and reuse of the catalyst, thus it being economically advantageous. In addition, the polymerization of cyclic monomers, substitution of substituents, carbon-carbon bond forming reactions and the like can be conducted with extremely high efficiency.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 25, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Naritoshi Yoshimura, Shinji Kiyono, Kazumi Mizutani, Isao Hara, Takaomi Hayashi, Tadahito Nobori, Yoshihiro Yamamoto, Miyuki Konno, Yoshihisa Inoue, Akira Matsuura, Tuneyuki Ohkubo
  • Patent number: 7393907
    Abstract: The present invention is a polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith. A process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof are also described. The polar group-containing olefin copolymer comprises a constituent unit derived from an ?-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: July 1, 2008
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Junichi Imuta, Norio Kashiwa, Seiji Ota, Satoru Moriya, Tadahito Nobori, Kazumi Mizutani
  • Patent number: 6936684
    Abstract: A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): wherein n stands for an integer of from 1 to 8, Zn? represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. In addition, a simple and efficient process is provided for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: August 30, 2005
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Tadahito Nobori, Masahiro Kouno, Toshiaki Suzuki, Kazumi Mizutani, Shinji Kiyono, Yoshiho Sonobe, Usaji Takaki
  • Publication number: 20040256743
    Abstract: A method for producing an organic compound having Q, the method including a step of reacting a compound represented by general formula (2) with an organic starting material having at least one halogen atom bonded to a carbon atom having four &sgr; bonds so as to replace the halogen atom in the organic starting material with Q:
    Type: Application
    Filed: June 10, 2004
    Publication date: December 23, 2004
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Setsuko Funaki, Yoshiteru Taniguchi, Tadahito Nobori, Yoshihiro Yamamoto, Isao Hara, Takaomi Hayashi, Kazumi Mizutani, Shinji Kiyono
  • Patent number: 6762259
    Abstract: The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are accurately controlled in producing method of (co)polymer by the polymerization of polar unsaturated compound, and provide living polymerized (co)polymer obtained according to the producing method. For the purpose, polymerization catalyst composition which comprises the composition comprising organic oxysalt compound and hydroxycarbonyl compound having at least both an alcoholic hydroxyl group and a carbonyl group in the same molecule is provided and the polar unsaturated compound is polymerized by using the polymerization catalyst composition. The composition containing the obtained (co)polymer were able to provide thermosetting powder coating composition having particularly excellent characteristics.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: July 13, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Katsuhiko Funaki, Atsushi Shibahara, Makoto Suzuki, Kazumi Mizutani, Hiromi Jouyama, Isao Hara, Takaomi Hayashi, Shinji Kiyono, Setsuko Fujiyoshi, Hiroyuki Sakayama, Mitsuyuki Mizoguchi, Tsuyoshi Matsumoto, Yoshiharu Hirose
  • Publication number: 20040122192
    Abstract: The present invention is a polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith. A process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof are also described. The polar group-containing olefin copolymer comprises a constituent unit derived from an &agr;-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation.
    Type: Application
    Filed: November 17, 2003
    Publication date: June 24, 2004
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Junichi Imuta, Norio Kashiwa, Seiji Ota, Satoru Moriya, Tadahito Nobori, Kazumi Mizutani
  • Patent number: 6664365
    Abstract: The present invention provides a novel salt useful as an active species in an organic reaction and represented by the following chemical formula (1): wherein n stands for an integer of from 1 to 8, Zn− represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. Also disclosed is a simple and efficient process for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: December 16, 2003
    Inventors: Tadahito Nobori, Masahiro Kouno, Toshiaki Suzuki, Kazumi Mizutani, Shinji Kiyono, Yoshiho Sonobe, Usaji Takaki
  • Publication number: 20030225244
    Abstract: The present invention provides a novel salt useful as an active species in an organic reaction and represented by the following chemical formula (1): 1
    Type: Application
    Filed: June 11, 2003
    Publication date: December 4, 2003
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Masahiro Kouno, Toshiaki Suzuki, Kazumi Mizutani, Shinji Kiyono, Yoshiho Sonobe, Usaji Takaki
  • Publication number: 20030105361
    Abstract: The present invention provides a novel salt useful as an active species in an organic reaction and represented by the following chemical formula (1): 1
    Type: Application
    Filed: August 2, 1999
    Publication date: June 5, 2003
    Inventors: TADAHITO NOBORI, MASAHIRO KOUNO, TOSHIAKI SUZUKI, KAZUMI MIZUTANI, SHINJI KIYONO, YOSHIHO SONOBE, USAJI TAKAKI
  • Patent number: 6528599
    Abstract: The present invention provides a method of preparing a polymer, which comprises subjecting a monomer containing at least a polar unsaturated compound to anionic polymerization in the presence of a phosphazenium compound represented by the formula (1): (wherein Z− is an anion of an active hydrogen compound in the form where a proton is eliminated from the active hydrogen compound and transferred to the anion; a, b, c and d each represents 1 or 0, but all of them are not simultaneously 0; and R may the same or different and each represents a hydrocarbon group having 1 to 10 carbon atoms, and two R(s) on the same nitrogen atom are optionally combined each other to form a cyclic structure), or in the presence of the phosphazenium compound and the active hydrogen compound. The resulting polymer is characterized by narrow molecular weight distribution.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: March 4, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Atsushi Shibahara, Shinji Kiyono, Takaomi Hayashi, Katsuhiko Funaki, Isao Hara, Kazumi Mizutani, Usaji Takaki
  • Publication number: 20030023003
    Abstract: The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are accurately controlled in producing method of (co)polymer by the polymerization of polar unsaturated compound, and provide living polymerized (co)polymer obtained according to the producing method. For the purpose, polymerization catalyst composition which comprises the composition comprising organic oxysalt compound and hydroxycarbonyl compound having at least both an alcoholic hydroxyl group and a carbonyl group in the same molecule is provided and the polar unsaturated compound is polymerized by using the polymerization catalyst composition. The composition containing the obtained (co)polymer were able to provide thermosetting powder coating composition having particularly excellent characteristics.
    Type: Application
    Filed: June 12, 2002
    Publication date: January 30, 2003
    Inventors: Tadahito Nobori, Katsuhiko Funaki, Atsushi Shibahara, Makoto Suzuki, Kazumi Mizutani, Hiromi Jouyama, Isao Hara, Takaomi Hayashi, Shinji Kiyono, Setsuko Fujiyoshi
  • Publication number: 20020161227
    Abstract: A substituted aromatic compound substituted with Q is obtained by reacting a phosphazenium compound represented by formula (1) 1
    Type: Application
    Filed: December 20, 2001
    Publication date: October 31, 2002
    Inventors: Tadahito Nobori, Setsuko Fujiyoshi, Isao Hara, Takaomi Hayashi, Atsushi Shibahara, Katsuhiko Funaki, Kazumi Mizutani, Shinji Kiyono
  • Publication number: 20020156207
    Abstract: The present invention is intended to provide a polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith, a process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof. The polar group-containing olefin copolymer comprises a constituent unit derived from an &agr;-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation. The polar group-containing olefin copolymer can be prepared by polymerizing the &agr;-olefin with the polar group-containing monomer and/or the macromonomer in the presence of a metallocene catalyst.
    Type: Application
    Filed: September 7, 2001
    Publication date: October 24, 2002
    Inventors: Junichi Imuta, Nori Kashiwa, Seiji Ota, Satoru Moriya, Tadahito Nobori, Kazumi Mizutani
  • Patent number: 6469224
    Abstract: A substituted aromatic compound substituted with Q is obtained by reacting a phosphazenium compound represented by formula (1) (in the formula, Q− represents an anion in a form derived by elimination of a proton from an inorganic acid, or an active hydrogen compound having an active hydrogen on an oxygen atom, a nitrogen atom or a sulfur atom; a, b, c and d, each independently, is 0 or 1, but all of them are not 0 simultaneously; and R groups represent the same or different hydrocarbon groups having 1 to 10 carbon atoms, or two Rs on each common nitrogen atom may be bonded together to form a ring structure) with a halogenated aromatic compound having halogen atoms; whereby, at least one halogen atom in the halogenated aromatic compound is substituted with Q (where, Q represents an inorganic group or an organic group in a form derived by elimination of one electron from Q− in formula (1)).
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: October 22, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Setsuko Fujiyoshi, Isao Hara, Takaomi Hayashi, Atsushi Shibahara, Katsuhiko Funaki, Kazumi Mizutani, Shinji Kiyono
  • Patent number: 6444847
    Abstract: A process for preparing phosphine oxides by reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield. Specifically, phosphine oxides are prepared in such a manner that iminophosphoranes are reacted with phosphorus oxytrichloride using an aprotic organic solvent with permittivity 2.2 or more at 20° C. as a solvent under special reaction conditions to give a liquid reaction product containing phosphine oxides and aminophosphonium chlorides which are yielded as a by-product at the same time as the phosphine oxides, and the above described chlorides are removed from the above described liquid reaction product by a solid-liquid separation process, and the solution having been subjected to the solid-liquid separation process is washed with water.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: September 3, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
  • Publication number: 20020016504
    Abstract: To provide a process for preparing phosphine oxides comprising reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield.
    Type: Application
    Filed: August 24, 2001
    Publication date: February 7, 2002
    Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
  • Patent number: 6303815
    Abstract: A process for preparing phosphine oxides by reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield. Specifically, phosphine oxides are prepared in such a manner that iminophosphoranes are reacted with phosphorus oxytrichloride using an aprotic organic solvent with permittivity 2.2 or more at 20° C. as a solvent under special reaction conditions to give a liquid reaction product containing phosphine oxides and aminophosphonium chlorides which are yielded as a by-product at the same time as the phosphine oxides, and the above described chlorides are removed from the above described liquid reaction product by a solid-liquid separation process, and the solution having been subjected to the solid-liquid separation process is washed with water.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: October 16, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki