Patents by Inventor Masao Karouji

Masao Karouji 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).

  • Adhesive compositions
    Patent number: 4792584
    Abstract: An adhesive composition comprising100 parts by weight of a block copolymer (a) containing of at least one polymer block composed mainly ofa vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which(i) the vinyl aromatic hydrocarbon content [S] is 10 to 30% by weight,(ii) the 1,2-vinyl content of butadiene portion [V] is 20 to 50%, and(iii) the relationship between said vinyl aromatic hydrocarbon content [S] and said 1,2-vinyl content of butadiene portion [V] satisfies the formula,:40.ltoreq.[S]+[V].ltoreq.7040 to 200 parts by weight of a tackifier (b), and, optionallyvarious stabilizers, and a process for producing said composition.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: December 20, 1988
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Toshinori Shiraki, Yasuo Hattori, Masao Karouji