Accession Number : ADD015870

Title :   Polyurethane Self-Priming Topcoats.

Descriptive Note : Patent, Filed 20 Dec 91, patented 17 Aug 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hegedus, Charles R ; Hirst, Donald J ; Eng, Anthony T

Report Date : 17 Aug 1993

Pagination or Media Count : 6

Abstract : A corrosion-resistant coating which can be applied directly to a surface as a self-priming topcoat comprising a polyurethane binder and a combination of pigments consisting essentially of an alkaline earth metal phosphosilicate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment and up to about 3.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic solvent.

Descriptors :   *BARIUM, *BENZOIC ACIDS, *COATINGS, *CORROSION, *ORGANIC SOLVENTS, *PHOSPHATES, *TITANIUM DIOXIDE, *ZINC, *PATENTS, *POLYURETHANE RESINS, *PRIMERS, *SILICATES, ADDITION, ALKALINE EARTH METALS, BINDERS, METALS, OILS, PIGMENTS, SALTS, SOLVENTS, SURFACES, WEIGHT, SOLUBILITY, SURFACE ACTIVE SUBSTANCES

Subject Categories : Coatings, Colorants and Finishes
      Properties of Metals and Alloys
      Inorganic Chemistry
      Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE