Patents by Inventor Steven Nicholas Semerak

Steven Nicholas Semerak 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).

  • Aoueous vinyl polymer dispersions
    Patent number: 5731368
    Abstract: Aqueous dispersions of vinyl polymers are disclosed. The polymers are copolymers of a vinyl halide, a vinyl ester, e.g., vinyl acetate, and a poly(alkylene glycol)-based macromonomer, e.g., poly(ethylene glycol)-maleic anhydride. Also disclosed are processes for the preparation of the aqueous dispersions which comprise forming the copolymer by solution polymerization, converting the dissolved polymer into an aqueous dispersion and removing the solvent from the aqueous dispersion.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: March 24, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: James Preston Stanley, Eric Jay Nagel, Richard Jude Burns, Walter Paul Mayer, Steven Nicholas Semerak