Thermoplastic compatible lubricant for plastic conveyor systems
AssigneeEcolab Inc.
InventorsDavid A. Halsrud, Timothy A. Gutzmann
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Abstract
A method of lubricating plastic conveyor tracks or belts is herein described wherein the lubricant composition contains a block copolymer of ethylene oxide and propylene oxide; also described are methods of manufacture of such lubricant compositions in both concentrate and diluted form. The compositions may also comprise an anionic and a nonionic surfactant as well as a neutralizing agent.
Claims24
A method of lubricating a continuously moving plastic conveyor system for transporting a container, comprising the step of applying an aqueous thermoplastic compatible lubricant composition to the surface of a plastic belt or track, the aqueous lubricant composition comprising a block copolymer of ethylene oxide and propylene oxide.
A method of lubricating a continuously moving plastic conveyor system for transporting a container, comprising the step of applying an aqueous thermoplastic compatible lubricant composition to the surface of a plastic belt or track, the aqueous lubricant composition comprising:
- (a) from about 100 ppm to about 7,500 ppm of a block copolymer of ethylene oxide and propylene oxide;
- (b) from about 10 ppm to about 5,000 ppm of an anionic surfactant;
- (c) from about 10 ppm to about 5,000 ppm of a nonionic surfactant;
- and
- (d) from about 1 ppm to about 1,500 ppm of a neutralizing agent.
An aqueous thermoplastic compatible lubricating composition suitable for use in continuously moving plastic conveyor belts or tracks, the aqueous lubricating composition consisting of:
- (a) about 100 to 7,500 ppm of a block copolymer of ethylene oxide and propylene oxide having a molecular weight of about 4,000 to 15,000;
- (b) about 10 to 5,000 ppm of an anionic surfactant;
- (c) about 10 to 5,000 ppm of a nonionic surfactant;
- and
- (d) about 1 to 1,500 ppm of a neutralizing agent.
Dependencies are inferred from the claim text.