Patents by Inventor Kurt Sorg

Kurt Sorg 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: 5080746
    Abstract: This system for thermoplastic adhesives includes (A) a first composition without anhydride groups, containing: a) at least one polymer chosen from the thermoplastic polymers and the synthetic rubbers; b) at least one compound containing at least one group which can react with anhydride groups; c) at least one tackifying resin; and d) if desired, at least one plasticizer; (B) a second composition containing constituents Ba, Bc and Bd which are respectively analogous to the constituents Aa, Ac and Ad, and b) at least one polymer containing anhydride groups; and (C) at least one activator of the reaction between the reactive groups of Ab and the anhydride functions of Bb. Advantageously the activator (C) is wholly incorporated in the composition A and/or in the composition B, so as to form a two-component system.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: January 14, 1992
    Assignee: Societe Chimique Des Charbonnages S.A.
    Inventor: Kurt Sorg
  • Patent number: 4954550
    Abstract: System for thermoplastic cross-linking adhesive, preparation thereof and corresponding method of gluing.This system for thermoplastic adhesives includes (A) a first composition without anhydride groups, containing: (a) at least one polymer chosen from the thermoplastic polymers and the synthetic rubbers; (b) at least one compound containing at least one group which can react with anhydride groups; (c) at least one tackifying resin; and (d) if desired, at least one plasticizer; (B) a second composition containing constituents Ba, Bc and Bd which are respectively analogous to the constituents Aa, Ac and Ad, and (b) at least one polymer containing anhydride goups; and (C) at least one activator of the reaction between the reactive groups of Ab and the anhydride functions of Bb. Advantageously the activatior (C) is wholly incorporated in the composition A and/or in the composition B, so as to form a two-component system.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: September 4, 1990
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventor: Kurt Sorg