Patents by Inventor Katsuyuki Imigi

Katsuyuki Imigi 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: 6911497
    Abstract: A polypropylene resin composition having a melt flow rate of 70 to 120 g/10 min (at 230° C., 2.16 kgf-load), a flexural modulus of 1300 to 4000 MPa and an IZOD impact strength of 30 to 100 kJ/m2, wherein the composition is obtained by adding a small amount of an organic peroxide to a mixture comprising 60 to 80% by weight of a specific propylene-ethylene block copolymer made up of a propylene homopolymer portion and a propylene-ethylene random copolymer portion, a rubber which is a copolymer of ethylene and at least one ?-olefin having a melt flow rate of 2 to 10 g/10 min (at 190° C., 2.16 kgf-load), and inorganic filler (C), and kneading the combined ingredients at a temperature of 170 to 280° C.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: June 28, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Jun Satoh, Hiroyuki Tanimura, Katsuyuki Imigi
  • Publication number: 20040242773
    Abstract: A polypropylene resin composition having a melt flow rate of 70 to 120 g/10 min (at 230° C., 2.16 kgf-load), a flexural modulus of 1300 to 4000 MPa and an IZOD impact strength of 30 to 100 kJ/m2, wherein the composition is obtained by adding a small amount of an organic peroxide to a mixture comprising 60 to 80% by weight of a specific propylene-ethylene block copolymer made up of a propylene homopolymer portion and a propylene-ethylene random copolymer portion, a rubber which is a copolymer of ethylene and at least one &agr;-olefin having a melt flow rate of 2 to 10 g/10 min (at 190° C., 2.16 kgf-load), and inorganic filler (C), and kneading the combined ingredients at a temperature of 170 to 280° C.
    Type: Application
    Filed: March 23, 2004
    Publication date: December 2, 2004
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Jun Satoh, Hiroyuki Tanimura, Katsuyuki Imigi