Patents by Inventor Takao Kadota

Takao Kadota 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).

  • Polymeric composition comprising transient foam control agent
    Patent number: 5189071
    Abstract: A foamable composition comprising an alkenyl aromatic polymer, blowing agent and a transient foam control agent that is effective to reduce polymer melt viscosity in the melt phase but nonmiscible and nondetrimental to the solid polymer.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: February 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Timothy W. Rhoads, Kyung W. Suh, Takao Kadota, William G. Stobby
  • Polymeric composition comprising transient foam control agent
    Patent number: 5189072
    Abstract: A foamable composition comprising an alkenyl aromatic polymer, blowing agent and a transient foam control agent that is effective to reduce polymer melt viscosity in the melt phase but nonmiscible and nondetrimental to the solid polymer.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: February 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Timothy W. Rhoads, Takao Kadota, Kyung W. Suh, William G. Stobby
  • Rigid thermoplastic resin foam and process for preparation thereof
    Patent number: 4585605
    Abstract: The foam of the present invention, which has a multi-cellular structure including many wrinkles having one end in the boundary portion where at least three cells are adjacent to one another and extending toward the central portion of the cell wall, is a rigid thermoplastic resin foam having an ultra-low density, a high sound-insulating property, a high heat-insulating property and a high flexibility, and it is suitable for adaption for building construction. The process of the present invention is to provide the aforesaid foam of the present invention by subjecting the foam of a rigid thermoplastic resin to expansion, contraction and aging.
    Type: Grant
    Filed: September 25, 1985
    Date of Patent: April 29, 1986
    Assignee: Dow Chemical Company
    Inventors: Takao Kadota, Masayuki Hashimoto, Itsuo Hamada
  • Rigid thermoplastic resin foam and process for preparation thereof
    Patent number: 4552904
    Abstract: The foam of the present invention, which has a multi-cellular structure including many wrinkles having one end in the boundary portion where at least three cells are adjacent to one another and extending toward the central portion of the cell wall, is a rigid thermoplastic resin foam having an ultra-low density, a high sound-insulating property, a high heat-insulating property and a high flexibility, and it is suitable for adaption for building construction. The process of the present invention is to provide the aforesaid foam of the present invention by subjecting the foam of a rigid thermoplastic resin to expansion, contraction and aging.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: November 12, 1985
    Assignee: The Dow Chemical Company
    Inventors: Takao Kadota, Masayuki Hashimoto, Itsuo Hamada