Back to results
US 2006/0090393 A1Published application
Epoxidized ester additives for reducing lead corrosion in lubricants and fuels
OwnerRobert Rowland, Cyril Migdalinventors
Life of this patent
Estimating the term…
Abstract
Fuels, especially hydrocarbon fuels, and lubricants, especially lubricating oils, contain a class of anti-corrosion, anti-fatigue, and anti-wear additives that are derived epoxidized esters of fatty acids. Epoxidized 2-ethylhexyl tallate is particularly effective.
Claims20
A composition comprising:
- (A) a lubricant or a hydrocarbon fuel, and
- (B) at least one epoxidized ester of the formula:
- wherein:
- m is 1 to 36;
- R1 and R2 are independently selected hydrocarbyl groups, optionally substituted with alkyl, cycloalkyl, alkenyl, aryl or alkoxy groups, and optionally containing OH, ether, or epoxide functionalities,
- or R1 is a polyol residue selected from the group consisting of
- wherein:
- n is O to about 12;
- R4, R5, and R9 are independently selected from the group consisting of hydrogen and hydrocarbyl;
- R6 is selected from the group consisting of linear alkylene, branched alkylene, linear alkenyl, and branched alkenyl;
- and
- R3, R7, and R8 are independently selected from the group consisting of hydrogen and an acyl group of the form:
- wherein R10 is hydrocarbyl, which may be further substituted.
10 more elements
A method for improving the anti-corrosive, anti-fatigue, and anti-wear properties of lubricants and hydrocarbon fuels comprising adding to said lubricants and hydrocarbon fuels a functional property-improving amount of at least one at least one epoxidized ester of the formula:
- wherein:
- m is 1 to 36;
- R1 and R2 are independently selected hydrocarbyl groups, optionally substituted with alkyl, cycloalkyl, alkenyl, aryl or alkoxy groups, and optionally containing OH, ether, or epoxide functionalities,
- or R1 is a polyol residue selected from the group consisting of
- wherein:
- n is 0 to about 12;
- R4, R5, and R9 are independently selected from the group consisting of hydrogen and hydrocarbyl;
- R6 is selected from the group consisting of linear alkylene, branched alkylene, linear alkenyl, and branched alkenyl;
- and
- R3, R7, and R8 are independently selected from the group consisting of hydrogen and an acyl group of the formula:
- wherein R10 is hydrocarbyl, which may be further substituted.
8 more elements
Dependencies are inferred from the claim text.