Patents by Inventor Yasumichi Miyagawa

Yasumichi Miyagawa 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: 9777199
    Abstract: To provide an amine catalyst for curing a polyisocyanate which can satisfy both initial moldability before a thermal compression step and high reactivity at the time of thermal compression molding, and an adhesive composition containing it. A catalyst comprising an amine compound (1) represented by the formula (1) and an amine compound (2) represented by the formula (2) is used as an amine catalyst for curing a polyisocyanate compound. wherein each of R1 and R2 which are independent of each other, is a C1-4 hydrocarbon group, and R3 is a C1-4 hydrocarbon group having a hydroxy group or an amino group; wherein each of R4 and R5 which are independent of each other, is a C1-4 hydrocarbon group, R6 is a C1-4 hydrocarbon group or a C1-4 hydrocarbon group having a hydroxy group or an amino group, R7 is a C1-4 hydrocarbon group having a hydroxy group or an amino group, and m is an integer of from 2 to 6.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: October 3, 2017
    Assignee: TOSOH CORPORATION
    Inventors: Yasumichi Miyagawa, Hiroyuki Kiso
  • Publication number: 20150203727
    Abstract: To provide an amine catalyst for curing a polyisocyanate which can satisfy both initial moldability before a thermal compression step and high reactivity at the time of thermal compression molding, and an adhesive composition containing it. A catalyst comprising an amine compound (1) represented by the formula (1) and an amine compound (2) represented by the formula (2) is used as an amine catalyst for curing a polyisocyanate compound. wherein each of R1 and R2 which are independent of each other, is a C1-4 hydrocarbon group, and R3 is a C1-4 hydrocarbon group having a hydroxy group or an amino group; wherein each of R4 and R5 which are independent of each other, is a C1-4 hydrocarbon group, R6 is a C1-4 hydrocarbon group or a C1-4 hydrocarbon group having a hydroxy group or an amino group, R7 is a C1-4 hydrocarbon group having a hydroxy group or an amino group, and m is an integer of from 2 to 6.
    Type: Application
    Filed: July 26, 2013
    Publication date: July 23, 2015
    Inventors: Yasumichi Miyagawa, Hiroyuki Kiso
  • Patent number: 6025043
    Abstract: A chlorosulfonated ethylene-.alpha.-olefin copolymer composition comprising a chlorosulfonated ethylene-.alpha.-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar joint boot obtained by molding and vulcanizing the chlorosulfonated ethylene-.alpha.-olefin copolymer composition. The copolymer composition is excellent in the tensile characteristics at room temperature and low temperature, in the compression set under a low-temperature atmosphere, and in the fatigue resistance.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: February 15, 2000
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Mitsuhiro Kamezawa, Hideyoshi Nakamura, Masahiro Watanuki
  • Patent number: 5916977
    Abstract: A chlorosulfonated ethylene-.alpha.-olefin copolymer composition comprising a chlorosulfonated ethylene-.alpha.-olefin copolymer, a thiuram compound, a bismaleimide compound, a nickel dialkyldithiocarbamate, and a diarylmonoamine compound, and a motorcar joint boot obtained by molding and vulcanizing the chlorosulfonated ethylene-.alpha.-olefin copolymer composition. The copolymer composition is excellent in the tensile characteristics at room temperature and low temperature, in the compression set under a low-temperature atmosphere, and in the fatigue resistance.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 29, 1999
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Mitsuhiro Kamezawa, Hideyoshi Nakamura, Masahiro Watanuki
  • Patent number: 5912079
    Abstract: A treating agent for bonding a polyester fiber and a chlorosulfonated polyolefin compound, which consists of a resorcinol/formaldehyde/latex mixture, wherein:1) the molar ratio of the resorcinol to the formaldehyde is from 1/0.1 to 1/5,2) the polymer component of the latex is a 2,3-dichlorobutadiene-containing polymer,3) the weight ratio of the solid content of the latex to the sum of the resorcinol and the formaldehyde is from 1/100 to 1/1,4) the amount of the 2,3-dichlorobutadiene-containing polymer solid content of the latex in the resorcinol/formaldehyde/latex mixture is from 5 to 50 wt %, and5) the amount of a surfactant in the resorcinol/formaldehyde/latex mixture is from 0.5 to 2.5 wt %.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: June 15, 1999
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Kenji Kuwata
  • Patent number: 5766762
    Abstract: A treating agent for bonding a polyester fiber and a chlorosulfonated polyolefin compound, which consists of a resorcinol/formaldehyde/latex mixture, wherein:1) the molar ratio of the resorcinol to the formaldehyde is from 1/0.1 to 1/5,2) the polymer component of the latex is a 2,3-dichlorobutadiene-containing polymer,3) the weight ratio of the solid content of the latex to the sum of the resorcinol and the formaldehyde is from 1/100 to 1/1,4) the amount of the 2,3-dichlorobutadiene-containing polymer solid content of the latex in the resorcinol/formaldehyde/latex mixture is from 5 to 50 wt %, and5) the amount of a surfactant in the resorcinol/formaldehyde/latex mixture is from 0.5 to 2.5 wt %.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: June 16, 1998
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Kenji Kuwata
  • Patent number: 5691415
    Abstract: A reinforced elastic body is disclosed, which comprises a chlorosulfonated polyolefin reinforced with polyester fibers having an adhesive containing an isocyanate compound and/or an epoxy compound and an adhesive composed of a mixture of a resorcin-formaldehyde resin and a 2,3-dichlorobutadiene-containing polymer. Also, a production process of the reinforced elastic body is disclosed, which comprises vulcanizing-adhering polyester fibers treated with an adhesive containing an isocyanate compound and/or an epoxy compound and then treated with an adhesive composed of a mixture of a resorcin-formaldehyde resin and a 2,3-dichlorobutadiene-containing polymer to a chlorosulfonated olefin compounded material.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: November 25, 1997
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Kenji Kuwata
  • Patent number: 5449833
    Abstract: A novel process for the preparation of a chlorinated polyolefin having excellent low temperature characteristics and brightness is provided which comprises allowing a polyolefin dissolved or suspended in a solvent to undergo chlorination reaction with chlorine gas or chlorinated sulfuryl in the presence of a radical initiator as a catalyst, characterized in that as said solvent there is used 1,1,2-trichloroethane and the temperature is controlled to 90.degree. C. or lower at the process for removing hydrogen chloride and/or sulfur dioxide by-produced during the reaction from the reaction system.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: September 12, 1995
    Assignee: Tosoh Corporation
    Inventors: Nobuyuki Ito, Katsushige Okayama, Yoshinori Karasuda, Yasumichi Miyagawa
  • Patent number: 5378766
    Abstract: A novel process for the preparation of a chlorinated polyolefin having excellent low temperature characteristics and brightness is provided which comprises allowing a polyolefin dissolved or suspended in a solvent to undergo chlorination reaction with chlorine gas or chlorinated sulfuryl in the presence of a radical initiator as a catalyst, characterized in that as said solvent there is used 1,1,2-trichloroethane and the temperature is controlled to 90.degree. C. or lower at the process for removing hydrogen chloride and/or sulfur dioxide by-produced during the reaction from the reaction system.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: January 3, 1995
    Assignee: Tosoh Corporation
    Inventors: Nobuyuki Ito, Katsushige Okayama, Toshinori Karasuda, Yasumichi Miyagawa
  • Patent number: 5219967
    Abstract: An acrylic copolymer rubber which is a random copolymer of(A) a cyano group-containing acrylate or methacrylate of the following formula (I): ##STR1## wherein R.sup.1 is hydrogen or methyl, and R.sup.2 is --C.sub.n H.sub.2n -- or --CH.sub.2 CH.sub.2 --0--CH.sub.2 CH.sub.2 --, wherein n is an integer of from 2 to 4,(B) at least one of ethyl acrylate and n-butyl acrylate, and(C) at least one of glycidyl methacrylate and allyl glycidyl ether, or vinyl chloroacetate,wherein the amounts of units derived from the above (A), (B) and (C) in said copolymer are from 5 to 70% by weight, from 20 to 94.5% by weight and from 0.5 to 10% by weight, respectively, and which has a Mooney viscosity ML.sub.1+4 (100.degree. C.) of at least 5.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: June 15, 1993
    Assignee: Tosoh Corporation
    Inventors: Yasumichi Miyagawa, Mitsuhiro Kamezawa, Toshiya Higashino, Takashi Yamamoto, Shinji Ozoe