Hydrogenated Natural Oils in Rust Preventative Coatings

摘要

A coating composition of a first triglyceride having a melting point of at least 35° C.; a second triglyceride having a melting point of less than 35° C.; a hydrocarbon-soluble ester-containing polymer; a carboxylic diacid or polyacid having at least 10 carbon atoms; and a metal salt of an alkylarylsulfonate in a hydrocarbon oil, provides good rust protection.

主权项

1. A coating composition comprising:
(a) a first triglyceride having a melting point of 35° C. to about 65° C.; (b) a second triglyceride having a melting point of less than 35° C.; (c) a hydrocarbon-soluble ester-containing polymer having at least one branch of about 10 to about 36 carbon atoms and having a number average molecular weight of about 5000 to about 300,000; (d) a carboxylic diacid or polyacid having at least 10 carbon atoms, provided that if the diacid or polyacid is a diacid having two carboxylic acid groups on adjacent carbon atoms, then said diacid will have at least 14 carbon atoms; (e) a salt of an alkylarylsulfonic acid, wherein the alkyl group thereof is of sufficient length to provide solubility of the salt in a hydrocarbon oil; and (f) a hydrocarbon oil in an amount sufficient to dissolve said salt; wherein the first and second triglycerides are present in a relative weight ratio of about 1:10 to about 10:1, and wherein the relative weight ratio of the sum of components (a) and (b), the triglycerides, to (c), the hydrocarbon-soluble ester-containing polymer, is about 1000:1 to about 5:1.