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US 4,544,688 AGranted
Metal-containing phenolic coating compositions
AssigneeUnion Carbide Corporation
InventorsGeorge A. Salensky, John S. Fry
Life of this patent
Estimating the term…
Abstract
Divalent metal complexes of novolacs act as modifiers for alkyds, drying oils, epoxy esters, epoxy resins and thermoplastic polyhydroxyethers. Lamellar, non-lamellar and spherical pigments improve corrosion and salt spray resistance of coatings made from these compositions.
Claims15
Coating composition expressed on a solvent free basis comprising:
- (A) an organic binder consisting essentially of:
- (1) about 4 to about 40 volume percent of a divalent metal complex of a para-substituted novolac phenol-aldehyde condensation product;
- (2) about 60 to about 96 volume percent product of an organic coating material selected from the group consisting of alkyd resins, drying oils, epoxy resins and thermoplastic polyhydroxyethers;
- and
- (B) based on the total coating composition, a pigment selected from the group consisting essentially of (i) aluminum-bronze lamellar pigments at a pigment volume concentration of about 7 to about 15 volume percent, (ii) about 20 to about 40 volume percent of a non-lamellar pigment selected from the group consisting of talc, titanium dioxide, zinc phosphate, calcium carbonate, manganese oxide and iron oxide, and (iii) about 50 to about 65 volume percent of particulate zinc metal.
2 more elements
Dependencies are inferred from the claim text.