Patents by Inventor Arthur B. Pruiksma

Arthur B. Pruiksma 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: 5981627
    Abstract: This invention relates to stable one-part latex compositions prepared by aqueous emulsion polymerization wherein a core-shell polymer is formed, the core formed by emulsion polymerization of an ethylenically unsaturated monomer in the presence of an epoxy resin and the shell polymer formed by emulsion polymerization of a hydroxy carboxyl containing monomer composition in the presence of the core, providing that the monomers in both the core and the shell do not contain amino functional groups, and post-adding to the formed core-shell polymer an organic compound having at least one amino functional group which is available for later reaction with the epoxy resin upon drying to produce a crosslinked polymer product.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: November 9, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Yen-Jer Shih, Arthur B. Pruiksma
  • Patent number: 4762866
    Abstract: A two-part aqueous-based adhesive suitable for dry-bonding a polyether urethane foam to a rigid or semi-rigid substrate consists essentially of (a) an aqueous latex of an anionic emulsion polymer having a Tg of 0.degree. C. or below, preferably -5.degree. to -30.degree. C., an effective amount of a diepoxide or polyepoxide curing agent, and optionally, but preferably, an effective amount of a fugitive plasticizer. The polymer consists essentially of about 10-30% ethylene, 40 to 80% of vinyl acetate, 5-35% of a C.sub.4 -C.sub.8 -dialkyl maleate, and 4-10% of an ethylenically unsaturated acid monomer (e.g., acrylic acid). Suitable substrates include styrene board and fiberglass board.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: August 9, 1988
    Assignee: National Starch and Chemical Corporation
    Inventors: Yen-Jer Shih, Arthur B. Pruiksma, Paul R. Mudge