Patent ID: 7718587

Claim:
A stable, non-precipitating, non-soap based lubricant composition for use in lubricating a conveyor track, said composition comprising, by weight: (a) from about 5% to about 30% by weight of a phosphate ester of the formula R1-(OCH2CH2)n-O—P(O)(OH) 2 wherein n is from 0 to about 10, and R 1 is a C 9 to C 20 saturated or unsaturated alkyl group or a mixture of such alkyl groups; (b) from about 40% to about 70% of water; (c) from about 2% to about 15% of an acid selected from the group consisting of phosphoric acid and C 1 -C 6 substituted or unsubstituted carboxylic acids; (d) from about 10% to about 30% of an anionic synthetic surfactant; and (e) from about 1% to about 5% of a sodium or potassium benzoate biocidal agent; said composition having a pH of from about 1 to about 2.0; wherein the pH of the composition when diluted with water to a concentration of from about 0.1% to about 5% is less than 3.6, and wherein said composition does not form precipitates when contacted by acidic beverages washed from or spilled from containers moving on the conveyor track.