Patents by Inventor Kazuo Kooya

Kazuo Kooya 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).

  • Process for the preparation of tetrachloroalkanes
    Patent number: 4243607
    Abstract: An ethylenic hydrocarbon is reacted with carbon tetrachloride in the presence of an alkyl phosphite, an iron chloride and a nitrile compound. According to this process, tetrachloroalkanes having more than two carbon atoms can be obtained in high yields.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: January 6, 1981
    Assignee: Shin-Etsu Chemical Co. Ltd.
    Inventors: Minoru Takamizawa, Haruo Okamoto, Mitsuo Umemura, Kazuo Kooya
  • Method of preparing fluoroalkyl-containing organosilanes
    Patent number: 4089882
    Abstract: Fluoroalkylsilanes of the general formula R'CH.sub.2 CH.sub.2 SiR.sub.n X.sub.3-n are prepared by reaction of an organohydrogensilane of the general formula R.sub.n SiHX.sub.3-n with a fluoroolefin of the general formula R'CH.dbd.CH.sub.2, where R is an alkyl or aryl group, R' is a perfluoroalkyl group, X is a halogen atom or an alkoxy group and n is 0, 1 or 2 in the presence of a binary catalyst composed of a platinum compound and stannous chloride under relatively mild conditions of temperature and pressure, at a very high yield.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: May 16, 1978
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Minoru Takamizawa, Mitsuo Umemura, Kazuo Kooya