Claims
- 1. A grease composition comprising a major amount of a grease and from about 0.01% to about 10% by weight of the composition of:
- (a) a boronated diol compound consisting essentially of the reaction product made by reacting a diol of the formula
- R(OH).sub.2
- wherein R is a hydrocarbyl group containing from 8 to 30 carbon atoms with a boron compound selected from the group consisting of boric acid, boric oxide, metaborate and an alkyl borate of the formula
- (R.sup.1 O).sub.y B(OH).sub.z
- wherein y is 1 to 3, z is 0 to 2, their sum being 3, and R.sup.1 is an alkyl group having 1 to 6 carbon atoms, and
- (b) a thickener containing at least 15% by weight of a hydroxy-containing soap thickener.
- 2. The composition of claim 1 additionally containing from about 0.01% to about 10% by weight of the composition of a phosphorus and sulfur compound or a mixture of phosphorus-containing and sulfur-containing compounds to supply an equivalent amount of phosphorus and sulfur.
- 3. The composition of claim 1 wherein the thickener is an alkali metla, alkaline earth metal or amine soap of a hydroxy-containing fatty acid, fatty glyceride or fatty ester containing 12 to 30 carbon atoms.
- 4. The composition of claim 3 wherein the metal is sodium, lithium, calcium or barium.
- 5. The composition of claim 1 wherein R is octyl, decyl, dodecyl, tetradecyl, pentadecyl, octadecyl, eicosyl, triacontyl, 1,2-mixed C.sub.15 to C.sub.18 alkyls, or is derived from propylene or butylene oligomers or is a mixture of any of these.
- 6. The composition of claim 3 wherein the thickener is derived from 12-hydroxystearic acid, 14-hydroxystearic acid or 16-hydroxystearic acid or 6-hydroxystearic acid or the ester or glyceride thereof.
- 7. The composition of claim 6 wherein the diol is a 1,2-mixed C.sub.15 to C.sub.18 diol.
- 8. The composition of claim 1 wherein the boron compound is boric acid.
- 9. The composition of claim 2 wherein the phosphorus and sulfur moieties are supplied by a phosphorothioate of the formula ##STR2## wherein R.sup.2 is a hydrocarbyl group containing 3 to 18 carbon atoms, M is a metal or non-metal, n is the valence of M and Z is oxygen or sulfur, at least one of the Z atoms being sulfur.
- 10. The composition of claim 9 wherein R.sup.2 is an alkyl group or an alkaryl group.
- 11. The composition of claim 9 wherein R.sup.2 is a propyl, butyl, pentyl, hexyl, octyl, dodecyl, tetradecyl, octadecyl, oleyl, butylphenyl, octylphenyl, nonylphenyl or dodecylphenyl group or mixtures thereof.
- 12. The composition of claim 11 wherein R.sup.2 is derived from isopropanol, butanol, isobutanol, sec-butanol, 4-methyl-2-pentanol, 2-ethylhexanol or mixtures thereof.
- 13. The composition of claim 9 wherein M is a metal from Group IA, IB, IIA, IIB, VIB or VIII of the Periodic Table.
- 14. The composition of claim 13 wherein the metal is lithium, sodium, calcium, zinc, cadmium, molybdenum or gold.
- 15. The composition of claim 14 wherein the metal is zinc.
- 16. The composition of claim 14 wherein the metal is molybdenum.
- 17. The composition of claim 9 wherein M is derived from vinyl acetate, butyl vinyl ether, propylene oxide, 1,2-epoxydodecane or hydrocarbylamine.
- 18. The composition of claim 1 wherein the phosphorus and sulfur moieties are supplied by a combination of (1) a dihydrocarbyl phosphite having 2 to 10 carbon atoms in each hydrocarbyl group, mixtures of such phosphites, or a dihydrocarbyl phosphate ester having 4 to 20 carbon atoms in each hydrocarbyl group and (2) a sulfide selected from sulfurized isobutylene, dibenzyl disulfide, sulfurized terpenes, phosphorodithionyl disulfide and sulfurized jojoba oil.
- 19. The composition of claim 18 wherein the phosphite is a dibutyl, dihexyl, dioctyl or didecyl phosphite or mixtures thereof.
- 20. The composition of claim 18 wherein the phosphate ester is a tributyl, tridecyl or tricresyl phosphate or mixtures thereof.
- 21. The composition of claim 9 wherein the diol is 1,2-mixed pentadecanediol-octadecanediol, the boron compound is boric acid and the phosphorus- and sulfur-containing compound is zinc dialkyl phosphorodithioate wherein the alkyl group is derived from mixed C.sub.3 secondary and C.sub.6 primary alcohols.
- 22. The composition of claim 1 wherein the grease vehicle is a mineral oil.
- 23. The composition of claim 1 wherein the grease vehicle is a synthetic oil.
- 24. The composition of claim 1 wherein the grease vehicle is a mixture of mineral and synthetic oils.
- 25. A method of improving the dropping point of a grease composition comprising a major proportion of a grease and from about 0.01% to about 10% by weight of the composition of a reaction product consisting essentially of the reaction product made by made by reacting a diol of the formula
- R(OH).sub.2
- wherein R is a hydrocarbyl group containing from 8 to 30 carbon atoms with a boron compound, the improvement comprising thickening said grease with a thickener containing at least about 15% by weight of a hydroxy-containing soap thickener.
- 26. The method of claim 25 in which the grease composition additionally contains from about 0.01% to about 10% by weight of the composition of a phosphorus and sulfur compound or a mixture of phosphorus-containing and sulfur-containing compounds to supply an equivalent amount of phosphorus and sulfur.
- 27. A method of making a grease composition comprising mixing a major proportion of a grease with
- (a) about 0.01% to about 10% by weight of the composition of a boronated diol compound consisting essentially of the reaction product made by recting a diol of the formula
- R(OH).sub.2
- wherein R is a hydrocarbyl group containing from 8 to 30 carbon atoms with a boron compound selected from the group consisting of boric acid, boric oxide, metaborate and an alkyl borate of the formula
- (R.sup.1 O).sub.y B(OH).sub.z
- wherein y is 1 to 3, z is 0 to 2, their sum being 3, and R.sup.1 is an alkyl group having 1 to 6 carbon atoms, and
- (b) a thickener containing at least about 15% by weight of a hydroxy-containing soap thickener.
Parent Case Info
This is a continuation-in-part of copending application Ser. No. 054,104, filed on May 20, 1987, which is a continuation of application Ser. No. 894,072, filed Aug. 11, 1986, which is a continuation of application Ser. No. 792,168, filed Oct. 25, 1985, which is a continuation of application Ser. No. 643,347, filed on Aug. 22, 1984 all now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4743386 |
Doner et al. |
May 1988 |
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4759873 |
Audeh |
Jul 1988 |
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Continuations (3)
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Number |
Date |
Country |
Parent |
894072 |
Aug 1986 |
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Parent |
792168 |
Oct 1985 |
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Parent |
643347 |
Aug 1984 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
54104 |
May 1987 |
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