Patents by Inventor Vazken Alexanian

Vazken Alexanian 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).

  • Preparation of a novel diisocyanate from norbornadiene
    Patent number: 5344965
    Abstract: Novel bicyclic alkyl dicarbamates are prepared from norbornadiene and other simple starting materials, and these are subsequently thermally cracked to novel diisocyanate norbornyl derivatives, which are, among others, useful for crosslinking active hydrogen compounds.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: September 6, 1994
    Assignee: Cytec Technology Corp.
    Inventors: Vazken A. Alexanian, Laurence J. Nummy
  • Room temperature curing, alternating isopropenyl-dimethylbenzylisocyanate copolymers having high isocyanate functionality
    Patent number: 5254651
    Abstract: Substantially alternating, organic solvent soluble copolymers of 2000 to 4000 molecular weight useful as crosslinking agents and containing monomeric units derived from monomers comprising (i) 40 to 50 mole percent of an isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate, and (ii) 60 to 45 mole percent of an unsaturated ester are described together with processes for their preparation. Curable compositions containing the copolymer and an isocyanate reactive material are also described.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: October 19, 1993
    Assignee: American Cyanamid Company
    Inventors: Vazken Alexanian, Robert G. Lees, Denise E. Fiori
  • Manufacture of isocyanates
    Patent number: 4379767
    Abstract: A process for the production of tertiary benzyl isocyanates by reaction of the corresponding olefin with a carbamoyl halide to form the benzyl halide followed by the reaction of the benzyl halide with an excess of isocyanic acid to form the isocyanate and carbamoyl halide which can be recovered and recycled.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: April 12, 1983
    Assignee: American Cyanamid Company
    Inventors: Vazken A. Alexanian, Peter S. Forgione, Laurence W. Chang