Rust converting-and-inhibiting water-thinnable paint primer
OwnerAdolf Heissinventor
Life of this patent
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Abstract
A water-thinnable primer effectively adherent to rusted metal and other substrates and to a variety of top coats has the form of an aqueous emulsion or aqueous suspension of a vinylidene chloride-vinylchloride copolymer and an alkyd resin, the alkyd resin being present in the amount of about 1/6 to 1/4 by weight of the vinylidene chloride-vinyl chloride copolymer, about 3 to 5% by weight of triethanolamine oleate as ionic surfactant, a drying accelerator composed of at least one polyvalent metal salt in an amount of about 1 to 4% by weight, about 8 to 15% by weight of a coalescing agent, and about 30 to 70% by weight of a pigment, all based on the weight of the total resin content of the primer.
Claims16
A paint primer which can be water thinned and is effectively adherent to rusted metal and other substrates and to a variety of top coats, comprising:
- an aqueous emulsion or aqueous suspension of a vinylidene chloride-vinylchloride copolymer and an alkyd resin, the aqueous emulsion or aqueous suspension having a pH of about 7 and the alkyd resin being present in an amount of about 1/6 to 1/4 by weight of the vinylidene chloride-vinylchloride copolymer, about 3 to 5% by weight of a triethanolamine salt as ionic surfactant, a drying accelerator composed of at least one polyvalent metal salt in an amount of about 1 to 4% by weight, about 8 to 15% by weight of a coalescing agent, and about 30 to 70% by weight of a pigment, all based on the weight of the total resin content of the primer.
Dependencies are inferred from the claim text.