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US 6,583,092 B1Granted
Lubricating oil composition
AssigneeThe Lubrizol Corporation
InventorsVirginia A. Carrick, Gordon D. Lamb, Ewa A. Bardasz, William D. Abraham
Life of this patent
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Abstract
This invention relates to a lubricating oil composition, comprising: (A) a base oil; (B) an alkali or alkaline earth metal salt of a saligenin derivative; (C) an alkali or alkaline earth metal salt of a hydrocarbon-substituted salicylic acid, and (D) a metal salt of a phosphorus-containing compound.
Claims30
A lubricating oil composition, comprising:
- (A) a base oil;
- (B) an alkali or alkaline earth metal salt of a saligenin derivative represented by the formula
- wherein in formula (B-I):
- each X independently is —CHO or —CH2OH;
- each Y independently is —CH2— or —CH2OCH2—;
- wherein the —CHO groups comprise at least about 10 mole percent of the X and Y groups;
- each M is independently the valance of an alkali or alkaline earth metal ion;
- each R is independently a hydrocarbyl group containing 1 to about 60 carbon atoms;
- m is 0 to about 10;
- n is 0 or 1 provided that when n is 0 the M is replaced with H;
- and each p is independently 0, 1, 2, or 3;
- provided that at least one aromatic ring contains an R substituent and that the total number of carbon atoms in all R groups is at least 7;
- and further provided that one of the X groups can be H;
- (C) an alkali or alkaline earth metal salt of a hydrocarbon-substituted salicylic acid;
- and
- (D) a metal salt of a phosphorus-containing compound represented by the formula
- wherein in formula (D-I), X1, X2, X3 and X4 are independently O or S;
- a and b are independently zero or 1;
- and R1 and R2 are independently hydrocarbyl groups.
16 more elements
A lubricating oil composition, comprising:
- (A) a base oil;
- (B) an alkali or alkaline earth metal salt of a saligenin derivative represented by the formula
- wherein in formula (B-I):
- each X independently is —CHO or —CH2OH;
- each Y independently is —CH2— or —CH2OCH2—;
- wherein the —CHO groups comprise at least about 10 mole percent of the X and Y groups;
- each M is independently the valance of an alkali or alkaline earth metal ion;
- each R is independently a hydrocarbyl group containing 1 to about 60 carbon atoms;
- m is 0 to about 10;
- n is 0 or 1 provided that when n is 0 the M is replaced with H;
- and each p is independently 0, 1, 2, or 3;
- provided that at least one aromatic ring contains an R substituent and that the total number of carbon atoms in all R groups is at least 7;
- and further provided that one of the X groups can be H;
- (C) an alkali or alkaline earth metal salt of a hydrocarbon-substituted salicylic acid;
- (D) a metal salt of a phosphorus-containing compound represented by the formula
- wherein in formula (D-I), X1, X2, X3 and X4 are independently O or S;
- a and b are independently zero or 1;
- and R1 and R2 are independently hydrocarbyl groups;
- and
- (E) an acylated nitrogen-containing compound having a substituent of at least about 10 aliphatic carbon atoms.
17 more elements
A lubricating oil composition, comprising:
- (A) a base oil;
- (B) a calcium or magnesium salt of a saligenin derivative represented by the formula
- wherein in formula (B-I):
- each X independently is —CHO or —CH2OH;
- each Y independently is —CH2— or —CH2OCH2—;
- wherein the —CHO groups comprise at least about 10 mole percent of the X and Y groups;
- each M is independently the valance of a calcium or magnesium metal ion;
- each R is independently a hydrocarbyl group containing 1 to about 60 carbon atoms;
- m is 0 to about 10;
- n is 0 or 1 provided that when n is 0 the M is replaced with H;
- and each p is independently 0, 1, 2, or 3;
- provided that at least one aromatic ring contains an R substituent and that the total number of carbon atoms in all R groups is at least 7;
- and further provided that one of the X groups can be H;
- (C) a calcium or magnesium salt of a hydrocarbon-substituted salicylic acid;
- (D) a zinc dialkyl dithiophosphate;
- and
- (E) a polyisobutene substituted succinimide containing at least about 50 aliphatic carbon atoms in the polyisobutene group.
14 more elements
A lubricating oil composition made by combining:
- (A) a base oil;
- (B) an alkali or alkaline earth metal salt of a saligenin derivative represented by the formula
- wherein in formula (B-I):
- each X independently is —CHO or —CH2OH;
- each Y independently is —CH2— or —CH2OCH2—;
- wherein the —CHO groups comprise at least about 10 mole percent of the X and Y groups;
- each M is independently the valance of an alkali or alkaline earth metal ion;
- each R is independently a hydrocarbyl group containing 1 to about 60 carbon atoms;
- m is 0 to about 10;
- n is 0 or 1 provided that when n is 0 the M is replaced with H;
- and each p is independently 0, 1, 2, or 3;
- provided that at least one aromatic ring contains an R substituent and that the total number of carbon atoms in all R groups is at least 7;
- and further provided that one of the X groups can be H;
- (C) an alkali or alkaline earth metal salt of a hydrocarbon-substituted salicylic acid;
- and
- (D) a metal salt of a phosphorus-containing compound represented by the formula
- wherein in formula (D-I), X1, X2, X3 and X4 are independently O or S;
- a and b are independently zero or 1;
- and R1 and R2 are independently hydrocarbyl groups.
16 more elements
A lubricating oil composition made by combining:
- (A) a base oil;
- (B) a calcium or magnesium salt of a saligenin derivative represented by the formula
- wherein in formula (B-I):
- each X independently is —CHO or —CH2OH;
- each Y independently is —CH2— or —CH2OCH2—;
- wherein the —CHO groups comprise at least about 10 mole percent of the X and Y groups;
- each M is independently the valance of a calcium or magnesium metal ion;
- each R is independently a hydrocarbyl group containing 1 to about 60 carbon atoms;
- m is 0 to about 10;
- n is 0 or 1 provided that when n is 0 the M is replaced with H;
- and each p is independently 0, 1, 2, or 3;
- provided that at least one aromatic ring contains an R substituent and that the total number of carbon atoms in all R groups is at least 7;
- and further provided that one of the X groups can be H;
- (C) a calcium or magnesium salt of a hydrocarbon-substituted salicylic acid;
- (D) a zinc dialkyl dithiophosphate;
- and
- (E) a polyisobutene substituted succinimide containing at least about 50 aliphatic carbon atoms in the polyisobutene group.
14 more elements
Dependencies are inferred from the claim text.