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US 2006/0135379 A1Published application
Anti-wear additive composition and lubricating oil composition containing the same
AssigneeChevron Oronite Company LLC
InventorJuan Buitrago
Life of this patent
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Abstract
An anti-wear additive composition comprising at least one acid phosphite compound and at least one neutral phosphite compound, wherein the ratio of the acid phosphite to the neutral phosphite is from about 1.0:10.7 to about 2.0:1.0, and lubricating oil compositions containing the same.
Claims29
An anti-wear additive composition comprising:
- (a) at least one acid phosphite compound;
- (b) at least one neutral phosphite compound;
- and wherein the ratio of (a) to (b) is from about 1.0:10.7 to about 2.0:1.0.
A lubricating oil composition comprising:
- (a) at least one acid phosphite compound;
- (b) at least one neutral phosphite compound;
- (c) an oil of lubricating viscosity;
- and
- wherein the weight ratio of (a) to (b) is from about 1.0:10.7 to about 2.0:1.0.
2 more elements
A method of making an anti-wear additive package comprising:
- mixing at least one acid phosphite compound with at least one neutral phosphite compound;
- and
- wherein the ratio of the acid phosphite compound to the neutral phosphite compound is from about 1.0:10.7 to about 2.0:1.0.
A method of making a lubricating oil composition comprising:
- sequentially or concurrently mixing an oil of lubricating viscosity with at least one acid phosphite compound and at least one neutral phosphite compound;
- wherein the ratio of the acid phosphite compound to the neutral phosphite compound is from about 1.0:10.7 to about 2.0:1.0.
Dependencies are inferred from the claim text.