Composition and method for lubricating conveyor track
AssigneeLynx Enterprises, Inc.
InventorWilliam Charles Schmidt, IV
Life of this patent
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Abstract
A lubricant composition is provided for use in lubricating a conveyor track for bottles, cans, kegs and other containers for beverages and foodstuffs. The composition comprises a phosphate ester of the formula R1—(OCH2CH2)n—O—P(O)(OH)2 where n is in the range of from 0 to 10, and R1 is a C9 to C20 saturated or unsaturated alkyl group or a mixture of such alkyl groups; and water. The composition has a pH of from about 1 to about 3.5. The composition optionally further comprises a biocidal agent, an acid, and a synthetic surfactant. Also disclosed is a method for lubricating a conveyor track by applying an effective amount of such a lubricating composition.
Claims16
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 R1 is a C9 to C20 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 C1-C6 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.
A method for lubricating a conveyor track by applying to the track an effective amount of a stable, non-precipitating, non-soap based lubricating 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 R1 is a C9 to C20 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 C1-C6 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.
Dependencies are inferred from the claim text.