Patents by Inventor Anthony W. Yankowsky

Anthony W. Yankowsky 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).

  • Polyester yarn and adhesively activated with a quaternary ammonium salt of a polyepoxide
    Patent number: 4933236
    Abstract: A composition for the adhesive activation of polymeric material. The composition is comprised of a non-resinous quaternary ammonium salt of a polyepoxide wherein the nitrogen atom of the ammonium group is bonded directly to a carbon atom of the polyepoxide and wherein the composition is substantially free of free amine. The composition may be used as a spin finish or topcoat composition and is particularly useful in the preparation of polyethylene terephthalate tire cord which is ultimately incorporated into rubber.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: June 12, 1990
    Assignee: Celanese Corporation
    Inventors: Norman S. Anderson, Gunilla E. Gillberg-La Force, Edward J. Powers, Anthony W. Yankowsky
  • Process for bonding polyester reinforcement elements to rubber
    Patent number: 4462855
    Abstract: Polyester reinforcement fibers are treated to improve adhesion to rubber by applying a dissolved aromatic urethane coating to the fibers followed by coating the fibers with a resorcinol-formaldehyde latex and then heating the fibers sufficiently to convert the aromatic urethane to an aromatic isocyanate and applying to and curing a layer of rubber on said treated polyester fibers.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: July 31, 1984
    Assignee: Celanese Corporation
    Inventors: Anthony W. Yankowsky, Harry W. Stanhope, Darrell D. Hicks