Patents by Inventor Paul Hary Sandstrom

Paul Hary Sandstrom 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).

  • PROMOTING UNCURED TACK AND CURED ADHESION FOR TIRE COMPONENT RUBBER COMPOSITIONS INCLUDING A TREAD SPLICE
    Publication number: 20120128994
    Abstract: This invention relates to promoting building tack for an uncured rubber composition and promoting cured adhesion between rubber compositions as components for a tire and a tire prepared thereby. The uncured building tack and cured adhesion is observed to be promoted, for example, by application of a composition containing rosin ester or hydrogenated rosin ester and at least one of uncured sulfur curable rubber, sulfur based rubber curative, reinforcing filler, tackifier resin and high boiling organic solvent. In one embodiment, the invention relates to a tire rubber tread splice.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 24, 2012
    Inventors: Ramendra Nath Majumdar, Paul Hary Sandstrom, Erik Paul Sandstrom, Michelle L. Sandstrom