Accession Number : ADD017557

Title :   Polyurethane Self-Priming Topcoats.

Descriptive Note : Patent, Filed 7 Mar 94, patented 4 Apr 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

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

Report Date : 04 Apr 1995

Pagination or Media Count : 6

Abstract : A corrosion-resistant polyurethane coating for application directly to a surface as a self-priming topcoat comprising major amount of a polyurethane binder and minor amount of a combination of pigments consisting essentially of an aluminum phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 30 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic solvent. (AN)

Descriptors :   *CORROSION RESISTANCE, *PROTECTIVE COATINGS, *POLYURETHANE RESINS, *PATENTS, ALUMINUM COMPOUNDS, SURFACE FINISHING, SYNTHESIS(CHEMISTRY), CORROSION INHIBITION, BINDERS, ORGANIC SOLVENTS, PIGMENTS, TITANIUM DIOXIDE, PHOSPHATES, ALKALINITY, EPOXY COATINGS, BENZOIC ACIDS, ZINC COMPOUNDS

Subject Categories : Coatings, Colorants and Finishes

Distribution Statement : APPROVED FOR PUBLIC RELEASE