Patents by Inventor George T. McKenzie

George T. McKenzie 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).

  • Tire tread composition
    Patent number: 5569697
    Abstract: Tire tread compositions comprisinga) a first rubber component comprising about 60-90 parts of styrene butadiene rubber (SBR) comprising less than 20 percent by weight of styrene, per hundred parts of rubber (phr);b) a second rubber component comprising about 10-40 phr of nitrile-butadiene rubber (NBR);c) 30-80 phr of carbon black;d) 10-20 phr of silica;e) 1-3 phr of a silane coupling agent; and, optionally,f) a third rubber component comprising about 10-30 phr of a high cis polybutadiene rubber (cis BR). The tire tread compositions provide tires with excellent wet traction and low rolling resistance.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 29, 1996
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Mark P. Ferrandino, Sung W. Hong, George T. McKenzie