Claims
- 1. A lubricant additive having antiwear and antioxidant properties comprising a reaction product of (1) at least one of an aliphatic amine represented by the structural formula:
- R.sub.7 NH.sub.2
- where R.sub.7 is an aliphatic hydrocarbon group which contains from about 1 to 100 carbon atoms; an aliphatic hydroxy compound represented by the structural formula:
- R.sub.6 OH
- in which R.sub.6 is an aliphatic hydrocarbon group which contains about 1 to 100 carbon atoms; or a trialkyl phosphite represented by the structural formula:
- (R.sub.8 O).sub.3 P
- where R.sub.8 is an alkyl group which contains from about 1 to 60 carbon atoms and (2) a reaction product made by reacting an etheramine having the structural formula:
- H.sub.2 N--R.sub.1 --O--R.sub.2
- where R.sub.1 and R.sub.2 are the same or different hydrocarbyl radicals containing from about 1 to about 50 carbon atoms and optionally, R.sub.1 and R.sub.2 contain at least one oxygen atom and/or nitrogen atom and a sulfur-containing carboxylic acid having the following structural formula: ##STR3## where n=0-2,
- a=0-1,
- b=0-1,
- c=0-1, and
- d=0-1, X is H, SH or CH.sub.2 CO.sub.2 H; provided that when n=O, c+d=1 and X is SH and if n is not O, then X is not SH, R.sub.3 is a hydrogen atom or a hydrocarbyl radical which contains from about 1 to about 60 carbon atoms, R.sub.4 and R.sub.5 are the same or different hydrocarbyl radicals containing from about 1 to 30 carbon atoms.
- 2. The additive of claim 1 in which the aliphatic group of the aliphatic amine contains from about 10 to 20 carbon atoms.
- 3. The additive of claim 2 in which the aliphatic group of the aliphatic amine is a tert-C.sub.12 to C.sub.14 alkyl group.
- 4. The additive of claim 1 in which the aliphatic hydrocarbon group of the hydroxy compound contains from about 10 to 20 carbon atoms.
- 5. The additive of claim 4 in which the aliphatic hydrocarbon group is decene, dodecene or octadecene and isomers thereof.
- 6. The additive of claim 1 in which the alkyl group of the trialkyl phosphite contains from 2 to 8 carbon atoms.
- 7. The additive of claim 6 in which the alkyl group of the trialkyl phosphite is methyl, ethyl, propyl, butyl or pentyl.
- 8. A lubricant composition comprising a major proportion of a lubricant and a minor wear and oxidation inhibiting amount of an additive comprising a reaction product of an aliphatic hydroxy compound, an aliphatic amine or a trialkylphosphite and immediate reaction product formed by reacting (1) an etheramine having the structural formula:
- H.sub.2 N--R.sub.1 --O--R.sub.2
- where R.sub.1 and R.sub.2 are the same or different hydrocarbyl radicals containing from about 1 to about 50 carbon atoms and, optionally R.sub.1 and R.sub.2 contain at least one oxygen atom and/or nitrogen atom and (2) a sulfur-containing carboxylic acid having the structural formula: ##STR4## where n=0-2,
- a=0-1,
- b=0-1,
- c=0-1, and
- d=0-1, X is H, SH or CH.sub.2 CO.sub.2 H; provided that when n=O, c+d=1 and X is SH and if n is not O, then X is not SH, R.sub.3 is a hydrogen atom or a hydrocarbyl radical which contains from about 1 to about 60 carbon atoms, R.sub.4 and R.sub.5 are the same or different hydrocarbyl radicals containing from about 1 to about 30 carbon atoms.
- 9. The composition of claim 8 in which the aliphatic hydroxy compound is oleyl alcohol.
- 10. The composition of claim 8 in which the aliphatic amine is a tertiary aliphatic amine.
- 11. The composition of claim 10 in which the aliphatic group of the aliphatic amine contains from 12 to 14 carbon atoms.
- 12. The composition of claim 8 in which the trialkylphosphite compound is tributylphosphite.
- 13. The composition of claim 8 in which the lubricant is a mineral or synthetic oil or a mixture thereof.
- 14. The composition of claim 8 in which the lubricant is a grease comprising a thickening agent and a mineral or a synthetic oil or a mixture thereof.
- 15. The additive of claim 1 in which the sulfur-containing carboxylic acid is selected from the group consisting of 3,3'-thiodipropionic acid, thiodiglycolic acid, thiodisuccinic acid, thioglycolic acid, thiolactic acid, thiomalic acid, dithiodiglycolic acid, dithiodipropionic acid and carbomethoxymercaptosuccinic acid.
- 16. The lubricant composition of claim 8 in which the sulfur-containing carboxylic acid is selected from the group consisting of 3,3'-thiodipropionic acid, thiodiglycolic acid, thiodisuccinic acid, thioglycolic acid, thiolactic acid, thiomalic acid, dithiodiglycolic acid, dithiodipropionic acid and carbomethoxymercaptosuccinic acid.
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of U.S. application Ser. No. 08/236,867 filed on May 2, 1994, now U.S. Pat. No. 5,405,545, which is a continuation of U.S. Ser. No. 08/024,015, filed on Mar. 2, 1993, now abandoned, which are incorporated herein by reference in their entireties.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4091024 |
Ondetti |
May 1978 |
|
4105789 |
Ondetti et al. |
Aug 1978 |
|
5405545 |
Horodysky et al. |
Apr 1995 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
24015 |
Mar 1993 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
236867 |
May 1994 |
|