Food grade compressor lubricant
AssigneeThe Lubrizol Corporation
InventorsBryan W. Dole, Jasween Jagjit, Michael G. Foster, Kenneth C. Lilje
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Abstract
The invention relates to an improved food-grade-lubricant useful as hydraulic oil, circulating oil, drip oil, general purpose oil, grease base oil, cable oil, chain oil, spindle oil, gear oil, and compressor oil for equipment in the food service industry. Specifically, it relates to a composition comprising at least one polyalphaolefin base fluid, at least one food grade polyolester base fluid, and at least one food grade performance additive.
Claims13
A food grade lubricant composition consisting of:
- (a) at least one polyalphaolefin base fluid;
- (b) at least one food grade polyolester base fluid comprising the reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid;
- (c) at least one food grade performance additive excluding lubricity additives;
- and
- (d) optionally at least one food grade oil consisting of at least one of the following:
- a synthetic ester, a white petroleum oil, and a severely hydro-treated petroleum oil.
A method for preparing a food-grade-lubricant composition consisting the steps of:
- a) providing at least one polyalphaolefin base fluid;
- b) providing at least one polyolester base fluid comprising the reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid;
- and c) providing at least one performance additive excluding lubricity additves;
- and, d) optionally at least one food grade oil consisting of at least one of the following:
- a synthetic ester, a white petroleum oil, and a severely hydro-treated petroleum oil;
- and e) blending the components to form the composition.
A method for lubricating a food industry mechanical device, the method comprising the steps of:
- lubricating the device with a composition consisting of:(a) at least one polyalphaolefin base fluid;
- (b) at least one polyolester base fluid comprising the reaction product of at least one neopentyl polyhydric alcohol and at least one monocarboxylic acid;
- and (c) at least one performance additive excluding ludricity additives;
- and (d) optionally at least one food grade oil consisting of at least one of the following:
- a synthetic ester, a white petroleum oil, and a severely hydro-treated petroleum oil;
- and e).
Dependencies are inferred from the claim text.