Patents by Inventor Katsusuke Kasahara

Katsusuke Kasahara 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: 4409267
    Abstract: The invention provides a novel method for the finishing treatment of a fabric material with a silicone-containing fabric treatment agent, according to which the treated fabric material is imparted with a very pleasant touch with softness and hydrophilicity in contrast to the conventional methods of fabric treatment with silicones in which the treated fabric material is always imparted with water repellency. The inventive method is characteristic in the use of an organopolysiloxane having, in a molecule, at least one polyoxyalkylene pendant group bonded to the silicon atom and at least one amino-containing group such as --O--CH.sub.2 --CHOH--CH.sub.2 --NH.sub.2 bonded to the silicon atoms, as the effective ingredient of the silicone-based fabric treatment agent. Preparation of such organopolysiloxane compounds is disclosed.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: October 11, 1983
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shoji Ichinohe, Katsusuke Kasahara
  • Patent number: 4370365
    Abstract: The invention provides a novel method for imparting water-repellency to a woven fabric such as velveteen by use of a silicone-based water-repellent agent. In addition to water-repellency, the fabric treated by the inventive method has many excellent characteristics required in a fancy fabric as well as susceptibility to bonding with a lining cloth by use of a hot-melt adhesive. The water-repellent agent used in the method comprises, in addition to an organohydrogenpolysiloxane, either one or a combination of a linear organopolysiloxane, in which at least 5% by moles of the organic groups are alkenyl, e.g. vinyl, groups, and a resinous organopolysiloxane composed of the monofunctional organosiloxane units and tetrafunctional siloxane units SiO.sub.2 in a limited molar proportion.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: January 25, 1983
    Assignees: Shin-Etsu Chemical Co., Ltd., Agehara Orimono Kogyo K.K.
    Inventors: Minoru Takamizawa, Akira Abe, Katsusuke Kasahara, Yukito Komeno, Akira Aoyama