Patents by Inventor Kunai Atsutaka

Kunai Atsutaka 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 the chlorination of a silicon compound
    Patent number: 5258535
    Abstract: A novel method is proposed for the chlorination of a silicon compound having, in a molecule, at least one hydrogen atom directly bonded to the silicon atom. The method comprises the step of reacting the starting silicon compound with anhydrous copper (II) chloride as a chlorinating agent in the presence of copper (I) iodide as a catalyst so as to substitute a chlorine atom for the silicon-bonded hydrogen atom. When the starting silicon compound has two or more of silicon-bonded hydrogen atoms, the chlorination reaction proceeds stepwise so that the inventive method provides a possibility of selective chlorination.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: November 2, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Mitsuo Ishikawa, Kunai Atsutaka, Yasushi Yamamoto