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US 2010/0144566 A1Published application
Lubricant Compositions
AssigneeThe Lubrizol Corporation
InventorsJames H. Bush, James N. Vinci, David Price
Life of this patent
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Abstract
The present invention relates to a lubricating composition containing (a) an ester-containing viscosity index improver; and (b) a polyoxyalkylene polyol. The invention further provides a method for lubricating a mechanical device with the lubricating composition.
Claims15
A lubricating composition comprising:
- (a) an ester-containing viscosity index improver;
- and (b) about 30 wt % or more of a polyoxyalkylene polyol.
A lubricating composition comprising:
- (a) about 1.5 wt % to about 30 wt % of an ester-containing viscosity index improver;
- (b) about 55 wt % to about 98.29 wt % of a polyoxyalkylene polyol;
- (c) about 0.1 wt % to about 5 wt % of a phosphorus-containing acid, salt or ester;
- (d) about 0.1 wt % to about 5 wt % of a non-phosphorus extreme pressure agent;
- and
- (e) about 0.01 wt % to about 5 wt % of at least one other performance additive.
3 more elements
Dependencies are inferred from the claim text.