Patents by Inventor Philip F. Murray

Philip F. Murray 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).

  • Rubber compounds containing zinc dimethacrylate
    Patent number: 4495326
    Abstract: Sulfur-curable, carbon black reinforced material rubber compounds having improved processing properties in the uncured state and improved strength and dynamic properties in the cured state are obtained by the addition of from about 0.2 to about 15 parts by weight per 100 parts by weight of natural rubber of a zinc dimethacrylate having a surface area of from about 3.7 to about 5.4 m.sup.2 /g or more to the compounds. The addition of the zinc dimethacrylate to the compounds permits the use of lower quantities of carbon black than would ordinarily be employed in the absence of the zinc dimethacrylate while still providing for the improved properties.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: January 22, 1985
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Thomas F. Donatelli, Philip F. Murray