Patents by Inventor Hugh K. Edwards

Hugh K. Edwards 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: 3962168
    Abstract: A new coating is composed of a compatible mixture of styrene acrylate polymers and polyvinyl acetate-acrylic co-polymers in a compatible organic-aqueous solvent system. The composition may contain extenders, fillers and pigments. A particularly useful application uses pulverized natural or synthetic rubbers to increase the resilience and skid resistance of the surface of the coated material. The coating is prepared by forming a solution of a styrene acrylate polymer in an organic solvent and blending the solution of styrene acrylate polymers in with an aqueous emulsion of a vinyl copolymer. Various pigments, fillers and extenders, such as clays, carbon blacks and pulverized rubber may be added to the mixture and the subsequent mixture is milled under conditions effective to produce a compatible, stable coating composition.
    Type: Grant
    Filed: January 24, 1974
    Date of Patent: June 8, 1976
    Inventor: Hugh K. Edwards