Patents Assigned to Valvoline Oil & Chemicals Ltd.
  • Patent number: 4918113
    Abstract: A process for producing an unsaturated resin solution suitable for reaction with a catalyst, water, and a gas releasing salt and a gas-release control agent to produce plastic foam material includes providing an initial unsaturated resin solution with a predetermined relatively low acid value, and mixing the initial unsaturated resin solution with a half-ester to raise the acid value to a predetermined higher value.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: April 17, 1990
    Assignee: Valvoline Oil & Chemicals Ltd.
    Inventors: Otello U. Titti, Patrick P. Cesta, Alan G. Wheeler, John C. Collins
  • Patent number: 4689352
    Abstract: A process for the production of plastic foam material includes forming a liquid mixture by mixing an unsaturated resin, a catalyst operable to cause curing of the unsaturated resin, a promoter operable to activate the catalyst, a gas-releasing salt, and an acid operable to cause the release of gas from the salt so that the liquid mixture foams and cures by gelling and subsequent hardening. Included in the mixture is a volatile liquid gas-release control agent which volatilizes during curing to maintain gas release passages open in the foam and thereby permit release of gases from the foam during hardening after gellation at least until the foam is structurally stable.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: August 25, 1987
    Assignee: Valvoline Oil & Chemicals Ltd.
    Inventors: Otello U. Titti, Patrick P. Cesta, Thomas H. Mitsopoulos, Alan G. Wheeler
  • Patent number: 4686275
    Abstract: A saturated linear polyester resin composition suitable for coating a metal for anti-corrosion and/or decorative purposes contains a polyol, a dibasic acid and from about 4 to about 12% by weight solids of a C.sub.16 to C.sub.18 carbon chain oil function in the form of a fatty acid or derivative thereof.
    Type: Grant
    Filed: February 25, 1986
    Date of Patent: August 11, 1987
    Assignee: Valvoline Oil & Chemicals Ltd.
    Inventors: Collin J. Bryant, Tom Mitsopoulos
  • Patent number: 4366266
    Abstract: A binder composition for making molded products in conjunction with an aggregate includes in admixture a resin component comprising an organic solvent solution of a non-aqueous phenolic resin, a hardener component comprising a liquid polyisocyanate containing at least two isocyanate groups, the resin component and hardener component being curable by a curing agent, and an additional component comprising an oil-soluble phenolic resin dissolved in a drying oil and partially cross-linked therewith.
    Type: Grant
    Filed: July 14, 1981
    Date of Patent: December 28, 1982
    Assignee: Valvoline Oil & Chemicals Ltd.
    Inventors: Tom Mitsopoulos, Satish Jhaveri, Charles Lui