Patents by Inventor Richard D. Porter

Richard D. Porter 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).

  • Azidoformyl antioxidants
    Patent number: 3991131
    Abstract: Azidoformyl compounds containing a hindered phenolic antioxidant moiety have been found to provide built-in antioxidant protection. They add to and protect polymers, including saturated, unsaturated, linear, crystalline and non-linear-amorphous hydrocarbon polymers, copolymers, terpolymers, etc., including especially polyethylene, polypropylene, polystyrene, and the rubbers, such as natural rubbers, polybutadienes, polyisoprenes, butadiene-isoprene copolymer, butyl rubber, ethylene-propylene copolymer, ethylene-propylene-dicyclopentadiene terpolymer, etc. and blends thereof.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: November 9, 1976
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Richard D. Porter, Samuel W. Waisbrot