Patents by Inventor Terufumi Adachi

Terufumi Adachi 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 preparation of a foam of chlorinated vinyl chloride polymer employing a lower aliphatic alcohol foaming agent
    Patent number: 4165415
    Abstract: A method for preparing foams of chlorinated vinyl chloride polymers is provided. The foams are prepared by impregnating the chlorinated vinyl chloride polymer with an aliphatic alcohol of from 1 to 5 carbon atoms and thereafter heating the impregnated polymer.
    Type: Grant
    Filed: October 28, 1976
    Date of Patent: August 21, 1979
    Assignee: Tokuyama Sekishi Kogyo Kabushiki Kaisha
    Inventors: Terufumi Adachi, Michifumi Tanga
  • Process for preparing chlorinated polymer or copolymer of vinyl chloride
    Patent number: 4049517
    Abstract: A process for preparing a chlorinated polymer or copolymer of vinyl chloride which comprises varying the amount of ultraviolet rays irradiated to a unit amount of the polymer or copolymer to control the reaction rate within the range from 0.75-0.25 mole/hour/kilogram of the polymer or copolymer until the rate of substitution of chlorine attains at least 1.6 moles/kilogram of the polymer or copolymer, the polymer or copolymer being chlorinated in an aqueous suspension under irradiation of ultraviolet rays. The polymers so produced have excellent thermal stability and excellent processability.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: September 20, 1977
    Assignee: Tokuyama Sekisui Kogyo Kabushiki Kaisha
    Inventors: Terufumi Adachi, Tatsuro Oda