Patents by Inventor Yoshikiyo Kinoshita

Yoshikiyo Kinoshita 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 of production of acrylic resin for film use and an acrylic resin obtained therefrom
    Patent number: 4115480
    Abstract: A method of producing acrylic resin for use as a film and having reduced tendency to stress whitening and acrylic resins produced by such method. An elastomer is prepared by copolymerizing a cross-linking monomer with a monomer mixture comprising a major proportion of acrylic acid alkyl ester containing 1 to 8 carbon atoms in the alkyl group and having gel content of more than 60%, degree of swelling of less than 15 and mean particle size of 500 to 2000 A. A resin component comprising a major proportion of methacrylic acid alkyl ester containing 1 to 4 carbon atoms in the alkyl group is graft polymerized to a degree of grafting of over 30% in an emulsion of the elastomer to produce the desired resin.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: September 19, 1978
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshikiyo Kinoshita, Takashi Aoi, Yoshihiro Kimura, Yumiko Amisaki