Claims
- 1. A grease composition comprising a lubricating component, a thickener including at least in part a hydroxy-containing thickener, and a borated mercaptan amine aldehyde condensation product having the structural formula, before being borated, ##STR8## wherein R is H or a C.sub.1 to C.sub.20 hydrocarbyl group, R.sup.1 is a C.sub.2 to C.sub.5 alkylene group, R.sup.2 is H or a C.sub.1 to C.sub.8 hydrocarbyl group and R.sup.3 is a C.sub.8 to C.sub.30 straight-chain or branched chain hydrocarbyl group, the hydroxy-containing thickener and borated mercaptan, amine aldehyde condensation product being present in sufficient quantities to effect an increase in the dropping point of said grease.
- 2. The composition of claim 1 wherein said borated condensation product is present in said grease composition in an amount of between about 0.2 and about 10 percent by weight.
- 3. The composition of claim 1 wherein the total amount of thickener added is between about 3 and about 20 percent by weight of the total composition.
- 4. The composition of claim 3 wherein the thickener contains at least 15 percent by weight of hydroxy-containing thickener.
- 5. The composition of claim 1 wherein said grease contains between about 0.2 and about 10 percent by weight of phosphorus and sulfur containing compounds.
- 6. The composition of claim 5 wherein said phosphorus and sulfur compound is zinc dialkyldithiophosphate or zinc diaryldithiophosphate.
- 7. The composition of claim 1 wherein said amine has the formula
- R.sup.7 NH.sub.2
- where R.sup.7 is a hydrocarbyl group having 4 to 20 carbon atoms.
- 8. The composition of claim 7 wherein R.sup.7 also contains sulfur, oxygen, or nitrogen.
- 9. The composition of claim 1 wherein the lubricating component is mineral oil, synthetic oil, or a mixture thereof.
- 10. The composition of claim 9 wherein the synthetic oils are polyglycols, synthetic hydrocarbons, alkyl benzenes, dibasic acid esters, polyol esters, phosphate esters or mixtures thereof.
- 11. The composition of claim 1 wherein the amine is a polyethylene amine selected from the group consisting of ethylenediamine, diethylenetriamine, triethylenetetraamine, tetraethylenepentamine, and mixtures thereof.
- 12. A grease composition comprising a lubricating component, a hydroxy-containing thickener and a borated condensation product obtained by reacting an amine selected from the group consisting of etheramines having the structural formula, R.sup.7 OR.sup.9 NH.sub.2, amines of the structural formula ##STR9## and ether diamines of the structural formula ##STR10## where R.sup.7 is a hydrocarbyl group having from 4 to 20 carbon atoms, R.sup.9 is a hydrocarbyl group of 1 to 6 carbon atoms, and Z is 1 to 4 with an aldehyde and a phenol having a substituent hydrocarbyl group of about 4 to about 20 carbon atoms or mercaptan and subsequently reacting the resulting product with a boron compound, the hydroxy-containing thickener and borated amine condensation product being present in sufficient quantities to effect an increase in the dropping point of said grease.
- 13. A method for elevating the dropping point of a grease composition comprising incorporating into said grease (1) the borated condensation product resulting from the reaction of a boron compound with a condensation product produced by reacting an aldehyde and an amine selected from the group consisting of etheramines having the structural formula, R.sup.7 OR.sup.9 NH.sub.2, amines of the structural formula ##STR11## and ether diamines of the structural formula ##STR12## where R.sup.7 is a hydrocarbyl group having from 4 to 20 carbon atoms, R.sup.9 is a hydrocarbyl group of 1 to 6 carbon atoms, and Z is 1 to 4 with a mercaptan or phenol having a hydrocarbyl substituent group of about 4 to about 20 carbon atoms and (2) a thickener including at least in part a hydroxy-containing soap thickener.
- 14. The method of claim 13 wherein a sulfur-phosphorus containing material is also included in the grease compositions.
- 15. The method of claim 13 wherein the hydroxy-containing soap thickener is at least 15% by weight of the total thickener in said grease composition.
- 16. The method of claim 13 and adding to said grease composition one or more compounds containing sulfur and phosphorus.
- 17. In a method for making grease wherein a liquid lubricant is mixed with a thickening agent, the iprovement comprising adding to said grease a hydroxy-containing thickener and a borated mercaptan amine aldehyde condensation product having the structural formula before being borated of ##STR13## wherein R is H or a C.sub.1 to C.sub.20 hydrocarbyl group, R.sup.1 is a C.sub.2 to C.sub.5 alkylene group, R.sup.2 is H or a C.sub.1 to C.sub.8 hydrocarbyl group and R.sup.3 is a C.sub.8 and C.sub.30 straight-chain or branched chain hydrocarbyl group, the hydroxy-containing thickener and borated mercaptan, amine aldehyde condensation product being present in sufficient quantities to effect an increase in the dropping point of said grease.
- 18. The method of claim 12 and adding one or more compounds containing sulfur and phosphorus.
- 19. A grease composition comprising a lubricating component, a thickener including at least in part a hydroxy-containing thickener and the product obtained by borating the condensation product of an aldehyde, a mercaptan and an amine selected from the group consisting of etheramines having the structural formula, R.sup.7 OR.sup.9 NH.sub.2, amines of the structural formula ##STR14## and ether diamines of the structural formula ##STR15## where R.sup.7 is a hydrocarbyl group having from 4 to 20 carbon atoms, R.sup.9 is a hydrocarbyl group of 1 to 6 carbon atoms, and Z is 1 to 4.
- 20. The composition of claim 19 wherein said borated condensation product is present in said grease composition in an amount of between about 0.2 and about 10 percent by weight.
- 21. The composition of claim 19 wherein the total amount of thickener added is between about 3 and about 20 percent by weight of the total composition.
- 22. The composition of claim 21 wherein the thickener contains at least 15 percent by weight of hydroxy-containing or polyhydroxy-containing thickener.
- 23. The composition of claim 19 wherein said grease contains between about 0.2 and about 10 percent by weight of phosphorus and sulfur containing compounds.
- 24. The composition of claim 19 wherein said hydroxy-containing thickener is lithium hydroxystearate.
- 25. The composition of claim 23 wherein said phosphorus and sulfur compound is zinc dialkyldithiophosphate.
- 26. The composition of claim 19 wherein the amine is a polyethylene amine selected from the group consisting of ethylenediamine, diethylenetriamine, triethylenetetraamine, tetraethylenepentamine, and mixtures thereof.
- 27. A grease composition comprising a lubricating component, a thickener including at least in part a hydroxy-containing thickener and the product obtained by borating the condensation product of an aldehyde, a mercaptan and an amine of the structural formula
- RNH.sub.2
- where R is a hydrocarbyl group having 1 to 20 carbon atoms.
- 28. A grease composition comprising a lubricating component, a hydroxy-containing thickener, and a borated mercaptan polyethylene amine aldehyde condensation product wherein the polyethylene amine is selected from the group consisting of ethylenediamine, diethylenetriamine, triethylenetetraamine, tetraethylenepentamine, and mixtures thereof, the hydroxy-containing thickener and borated mercaptan, amine aldehyde condensation product being present in sufficient quantities to effect an increase in the dropping point of said grease.
- 29. The composition of claim 28 wherein the amine is a polyethylene amine.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of copending U.S. application Ser. No. 682,579, filed Dec. 17, 1984, now abandoned, which is a continuation of U.S. application Ser. No. 445,883, filed Dec. 1, 1982, now abandoned. The present application is also a continuation-in-part of copending U.S. application Ser. No. 638,609, filed Aug. 7, 1984, now U.S. Pat. No. 4,571,248, which is a division of U.S. application Ser. No. 456,880, filed Jan. 10, 1983, now U.S. Pat. No. 4,486,321. U.S. Pat. No. 4,486,321 and application Ser. No. 682,579 (12/17/84) are incorporated herein by reference.
US Referenced Citations (24)
Non-Patent Literature Citations (3)
Entry |
C. J. Boner, "Manufacture and Application of Lubricating Greases", 1954, pp. 435-437, 497-498, 157. |
C. V. Smalheer & R. K. Smith, "Lubricant Additives", 1967, Section 1, pp. 1-11, Chapter 1. |
G. G. Hawley, "The Condensed Chemical Dictionary", Ninth Edition, pp. 520 and 938. |
Divisions (1)
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Number |
Date |
Country |
Parent |
456880 |
Jan 1983 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
445883 |
Dec 1982 |
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Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
682579 |
Dec 1984 |
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Parent |
638609 |
Aug 1984 |
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