Accession Number : ADD016265

Title :   Polyurethane Self-Priming Topcoats.

Descriptive Note : Patent, Filed 29 Sep 92, patented 1 Mar 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

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

Report Date : 01 Mar 1994

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 resin binder and a combination of pigments consisting essentially of an alkaline earth metal metaborate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains from 5-40 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant and up to about 50 parts by weight of at least one organic solvent.

Descriptors :   *COATINGS, *POLYURETHANE RESINS, *PATENTS, ALKALINE EARTH METALS, BARIUM, BENZOIC ACIDS, BINDERS, DISPERSANTS, METALS, OILS, ORGANIC SOLVENTS, PHOSPHATES, PIGMENTS, PLASTICS, SALTS, SURFACES, TITANIUM DIOXIDE, WEIGHT, ZINC, PRIMERS, CORROSION RESISTANCE, BORATES, SOLUBILITY

Subject Categories : Plastics
      Coatings, Colorants and Finishes
      Properties of Metals and Alloys
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE