Patents by Inventor Futoshi Kitatani

Futoshi Kitatani 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: 6756414
    Abstract: This invention provides a polymer polyol composition (I) comprising a polyol (A) and polymer particles (B) dispersed in (A), the polymer particles (B) being formed by polymerizing an ethylenically unsaturated compound (b) in a polyol, wherein the content of (B) in (I) is from 35 to 75 mass %, based on the mass of (I), and the amount of soluble polymers (P) dissolved in (A) is not more than 5 mass %, based on the mass of (A), and provides methods for producing the polymer polyol composition (I). Further, this invention provides a method for producing a foamed or non-foamed polyurethane resin, which method comprises reacting a polyol component with a polyisocyanate component in the presence or absence of a blowing agent, wherein the above polymer polyol composition is used at least as a portion of the polyol component.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: June 29, 2004
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Tetsuji Kawamoto, Tomio Kawazoe, Kiyoshi Ikeda, Munekazu Satake, Futoshi Kitatani, Tsuyoshi Tomosada, Takeshi Furuta, Takayuki Tsuji
  • Publication number: 20030216486
    Abstract: This invention provides a polymer polyol composition (I) comprising a polyol (A) and polymer particles (B) dispersed in (A), the polymer particles (B) being formed by polymerizing an ethylenically unsaturated compound (b) in a polyol, wherein the content of (B) in (I) is from 35 to 75 mass %, based on the mass of (I), and the amount of soluble polymers (P) dissolved in (A) is not more than 5 mass %, based on the mass of (A), and provides methods for producing the polymer polyol composition (I). Further, this invention provides a method for producing a foamed or non-foamed polyurethane resin, which method comprises reacting a polyol component with a polyisocyanate component in the presence or absence of a blowing agent, wherein the above polymer polyol composition is used at least as a portion of the polyol component.
    Type: Application
    Filed: June 17, 2003
    Publication date: November 20, 2003
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Tetsuji Kawamoto, Tomio Kawazoe, Kiyoshi Ikeda, Munekazu Satake, Futoshi Kitatani, Tsuyoshi Tomosada, Takeshi Furuta, Takayuki Tsuji
  • Patent number: 6624209
    Abstract: This invention provides a polymer polyol composition (I) comprising a polyol (A) and polymer particles (B) dispersed in (A), the polymer particles (B) being formed by polymerizing an ethylenically unsaturated compound (b) in a polyol, wherein the content of (B) in (I) is from 35 to 75 mass %, based on the mass of (I), and the amount of soluble polymers (P) dissolved in (A) is not more than 5 mass %, based on the mass of (A), and provides methods for producing the polymer polyol composition (I). Further, this invention provides a method for producing a foamed or non-foamed polyurethane resin, which method comprises reacting a polyol component with a polyisocyanate component in the presence or absence of a blowing agent, wherein the above polymer polyol composition is used at least as a portion of the polyol component.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: September 23, 2003
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Tetsuji Kawamoto, Tomio Kawazoe, Kiyoshi Ikeda, Munekazu Satake, Futoshi Kitatani, Tsuyoshi Tomosada, Takeshi Furuta, Takayuki Tsuji
  • Publication number: 20030004217
    Abstract: This invention provides a polymer polyol composition (I) comprising a polyol (A) and polymer particles (B) dispersed in (A), the polymer particles (B) being formed by polymerizing an ethylenically unsaturated compound (b) in a polyol, wherein the content of (B) in (I) is from 35 to 75 mass %, based on the mass of (I), and the amount of soluble polymers (P) dissolved in (A) is not more than 5 mass %, based on the mass of (A), and provides methods for producing the polymer polyol composition (I). Further, this invention provides a method for producing a foamed or non-foamed polyurethane resin, which method comprises reacting a polyol component with a polyisocyanate component in the presence or absence of a blowing agent, wherein the above polymer polyol composition is used at least as a portion of the polyol component.
    Type: Application
    Filed: February 6, 2002
    Publication date: January 2, 2003
    Applicant: SANYO CHEMICAL INDUSTRIES, Ltd.
    Inventors: Tetsuji Kawamoto, Tomio Kawazoe, Kiyoshi Ikeda, Munekazu Satake, Futoshi Kitatani, Tsuyoshi Tomosada, Takeshi Furuta, Takayuki Tsuji
  • Patent number: 5459172
    Abstract: The present invention is directed to flexible polyurethane foams useful as seat cushioning material for vehicles, aircraft, furniture and the like. The polyurethane foams are characterized by improved wet compression set properties, improved firmness, resilience and elongation. The foams are made by a process which comprises reacting a polyol having a hydroxyl equivalent of from 800-10,000, a glycerin derivative having oxyethylene groups thereon but characterized by having a significant number of unreacted secondary hydroxyl groups of glycerin, (c) water and (d) an organic polyisocyanate.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: October 17, 1995
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Motonao Kaku, Hidefumi Ohta, Futoshi Kitatani, Kozaburo Nagata