Patents by Inventor Julian M. Mitchell

Julian M. Mitchell 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 sidewall composition
    Patent number: 4973627
    Abstract: Tires having a sidewall composed of a composition formed by curing a blend comprised of (A) high molecular weight (6.times.10.sup.5 Mu) ethylene/alphaolefin/nonconjugated polyene terpolymer; (B) a highly unsaturated rubber; and (C) a curative system comprised of sulfur and/or a sulfur-donor compound, an organic(hydro)peroxide curative and a sulfur cure accelerator exhibit desirable reduced internal heat buildup and improved adhesion to adjacent rubber carcass and tread portions of the tire.
    Type: Grant
    Filed: October 13, 1989
    Date of Patent: November 27, 1990
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Julian M. Mitchell
  • Tire having tread composition comprised of EPDM/unsaturated rubber blend
    Patent number: 4814384
    Abstract: Tires having a tread composed of a composition formed by curing a blend comprised of (A) ethylene/alpha-olefin/nonconjugated polyene terpolymer; (B) a highly unsaturated rubber; and (C) a curative system comprised of sulfur and/or a sulfur-donor compound, an organic (hydro)peroxide curative and a sulfur cure accelerator exhibit desirable high strength, low rolling resistance, high skid resistance and good traction.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: March 21, 1989
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Julian M. Mitchell, Donald E. Wingrove, Charles F. Eckert
  • Painted exterior automotive body parts
    Patent number: 4137350
    Abstract: Painted exterior automotive body parts made of blends of EPM or EPDM type elastomers with highly unsaturated rubbers, vulcanized to provide vulcanizates having high flexural modulus (from 7,000 to 45,000 psi), using high sulfur levels (6 to 12 parts per 100 parts by weight of elastomers).
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: January 30, 1979
    Assignee: Uniroyal, Inc.
    Inventors: Arthur A. Blaskiewicz, Julian M. Mitchell
  • Adhesion of polyurethane to EPDM elastomer
    Patent number: 3991255
    Abstract: The adhesion of a polyurethane, such as a polyurethane paint, to an EPDM surface, is greatly improved if the EPDM is first chemically modified by mixing it with a halogen donating material, such as an N,N-dihalosulfonamide or a cyclic N-haloamide (e.g., a halogenated hydantoin), and subjecting the mixture to elevated temperature.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: November 9, 1976
    Assignee: Uniroyal Inc.
    Inventors: Arthur A. Blaskiewicz, Julian M. Mitchell