Patents Assigned to Sumitomo Chemical Industries, Ltd.
  • 4-Homoisotwistane-aminoacid amides
    Patent number: 4277473
    Abstract: Compounds having the formula ##STR1## wherein a is 0 or 1, R.sub.1 is hydrogen or lower alkyl, A is lower alkylene or lower alkylidene, and R.sub.2 and R.sub.3, which can be the same or different, are hydrogen, lower alkyl, cycloalkyl, benzyl or substituted benzyl, or ##STR2## is a saturated heterocyclic ring, and acid addition salts thereof, possess anti-viral activity and reduced activity on the central nervous system.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: July 7, 1981
    Assignees: Kao Soap Co., Ltd., Sumitomo Chemical Industries Ltd.
    Inventors: Yoshiaki Inamoto, Motoyoshi Osugi, Eiji Kashihara
  • Novel tricycloundecane aminoacid amide
    Patent number: 4272536
    Abstract: A compound having the formula ##STR1## wherein a is 0 or 1, R.sub.1 is hydrogen or lower alkyl, A is lower alkylene or lower alkylidene, and R.sub.2 and R.sub.3, which can be the same or different, are hydrogen, lower alkyl, cycloalkyl, benzyl or substituted benzyl, or ##STR2## form a saturated heterocyclic ring, and pharmacologically acceptable acid addition salt thereof, exhibits anti-viral activity and is free from significant effect on the central nervous system.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: June 9, 1981
    Assignees: Kao Soap Co., Ltd., Sumitomo Chemical Industries Ltd.
    Inventors: Yoshiaki Inamoto, Motoyoshi Osugi, Eiji Kashihara
  • 1-(1-Aminoalkyl)tricyclo[4,3,1,1.sup.2,5 ]undecanes
    Patent number: 4248891
    Abstract: Compounds having the formula ##STR1## in which R is lower alkyl, and acid addition salts of said compounds. The compounds possess anti-RNA-viral activity and also an antiviral activity against herpes virus.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: February 3, 1981
    Assignees: Kao Soap Co., Ltd., Sumitomo Chemical Industries, Ltd.
    Inventors: Yoshiaki Inamoto, Motoyoshi Osugi, Eiji Kashihara
  • Apparatus for treatment of rubber and plastic wastes
    Patent number: 4208252
    Abstract: An apparatus for treatment of rubber and plastic wastes, comprising in series an extruder for heating and melting rubber and plastic wastes to extrude the molten wastes, a decomposing section for heating the molten wastes to prepare decomposed products while optionally separating residues therefrom, a dry-distilling section for gasifying the decomposed products by dry-distillation, and a cooling section for cooling the dry-distilled products to separate gaseous materials from liquid materials.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: June 17, 1980
    Assignee: Sumitomo Chemical Industries, Ltd.
    Inventors: Masaaki Yoshida, Masao Watanabe, Kimio Tohma, Mitsuhiko Noda