Patents by Inventor Hiroyuki Ome

Hiroyuki Ome 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).

  • Method for producing aliphatic polyester resin, and an aliphatic polyester resin composition
    Patent number: 8173753
    Abstract: A method for producing an aliphatic polyester resin including a melt polymerization step and a subsequent solid phase polymerization step, using a sulfonic acid group-containing compound as a catalyst, wherein the addition amount of the sulfonic acid group-containing compound during melt polymerization is 300 to 3000 ppm with respect to a raw material monomer calculated as sulfur atoms, the content of the sulfonic acid group-containing compound during melt polymerization is 300 to 3000 ppm with respect to a produced polymer calculated as sulfer atoms, and a residual rate of the sulfonic acid group-containing compound after solid phase at polymerization is more than 50.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: May 8, 2012
    Assignee: Toray Industries, Inc.
    Inventors: Tatsuya Nagano, Tomoko Nasuno, Hiroyuki Ome, Yong He, Bo Yu, Kexin Zhu, Xiao Guo, Pujing Zuo
  • METHOD FOR PRODUCING CRYSTALLIZED POLYESTER
    Publication number: 20120065342
    Abstract: A method for producing a crystallized polyester comprises the crystallization step of applying a shear and/or a pressure to a polyester selected from an aliphatic polyester and a polyalkylene terephthalate at a temperature of (Tm?70° C.) to (Tm+20° C.), where Tm is a melting point of the polyester, thereby converting the polyester into a state having a crystallinity of 10% or more and fluidity.
    Type: Application
    Filed: June 17, 2010
    Publication date: March 15, 2012
    Applicant: Toray Industries, Inc.
    Inventors: Mitsushige Hamaguchi, Takuma Naotsuka, Yoshitake Takahashi, Toru Takahashi, Hiroyuki Ome
  • METHOD FOR PRODUCING ALIPHATIC POLYESTER RESIN, AND AN ALIPHATIC POLYESTER RESIN COMPOSITION
    Publication number: 20110065871
    Abstract: A method for producing an aliphatic polyester resin including a melt polymerization step and a subsequent solid phase polymerization step, using a sulfonic acid group-containing compound as a catalyst, wherein the addition amount of the sulfonic acid group-containing compound during melt polymerization is 300 to 3000 ppm with respect to a raw material monomer calculated as sulfer atoms, the content of the sulfonic acid group-containing compound during melt polymerization is 300 to 3000 ppm with respect to a produced polymer calculated as sulfer atoms, and a residual rate of the sulfonic acid group-containing compound after solid phase at polymerization is more than 50%.
    Type: Application
    Filed: May 19, 2009
    Publication date: March 17, 2011
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Tatsuya Nagano, Tomoko Nasuno, Hiroyuki Ome, Yong He, Bo Yu, Kexin Zhu, Xiao Guo, Pujing Zuo