Patents Assigned to Oakite Products, Inc.
  • Composition and method for treatment of conversion coated metal surfaces with an aqueous solution of 3-aminopropyltriethoxy silane and titanium chelate
    Patent number: 5053081
    Abstract: A final rinse composition, for enhancing the siccative coating adhesion and corrosion resistance properties of conversion coated metal surfaces, comprising an aqueous solution of a selected organosilane and a selected organotitanate, and a method of use thereof.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: October 1, 1991
    Assignee: Oakite Products, Inc.
    Inventor: Savarimuthu M. Jacob
  • No-rinse pre-paint coating composition and method
    Patent number: 4227946
    Abstract: An acid aqueous coating composition and concentrate of chromic acid and chromium phosphate derived from phosphoric acid resulting from the oxidation of hypophosphorous acid in reacting with the chromic acid. The chromic acid is present in a stoichiometrically equivalent amount from about one percent to about one hundred percent over that needed to oxidize hypophosphorous acid to phosphoric acid. The composition may also contain a non-foaming wetting agent and particulate silica.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: October 14, 1980
    Assignee: Oakite Products, Inc.
    Inventor: Stanley C. Williamson
  • Metal protective coating compositions, their preparation and use
    Patent number: 3985584
    Abstract: Disclosed is an acid, aqueous metal surface treating composition comprising chromium phosphate, chromic acid, a phosphate ion providing compound and a polyvinyl alcohol polymer hydrolyzed to at least 99%. Also present is a phosphate of a water soluble amine.
    Type: Grant
    Filed: October 25, 1972
    Date of Patent: October 12, 1976
    Assignee: Oakite Products, Inc.
    Inventors: Francis Chee Keung Chan, Edward Heinzelman, Jr.