Claims
- 1. A two-cycle engine lubricant comprising from about 10% to about 30% low ash detergent inhibitor; from about 10% to about 45% bio-based ester selected from castor oil, a synthetic polyol-based ester, and mixtures thereof; from about 14% to about 37% polyalphaolefin; from about 7% to about 18% synthetic ester; from 2% to about 10% surfactant; and from about 2% to about 5% pour point depressant, by weight of the lubricant.
- 2. The lubricant of claim 1, further comprising up to about 20 vol. % of a compatible solvent.
- 3. The lubricant of claim 2, comprising about 10 vol. % solvent.
- 4. The lubricant of claim 2 wherein the lubricant viscosity is not less than about 6.5 cSt at 100° C.
- 5. The lubricant of claim 2 wherein the solvent is Stoddard Solvent.
- 6. The lubricant of claim 1, comprising from about 10 wt. % to about 25 wt. % low ash detergent inhibitor.
- 7. The lubricant of claim 6, comprising about 20 wt. % low ash detergent inhibitor.
- 8. The lubricant of claim 1 wherein the detergent inhibitor is ashless.
- 9. The lubricant of claim 1, comprising from about 15 wt. % to about 40 wt. % of a bio-based ester selected from castor oil, synthetic polyol-based ester, and mixtures thereof.
- 10. The lubricant of claim 9, comprising from about 20 wt. % to about 40 wt. % castor oil.
- 11. The lubricant of claim 9, comprising from about 20 wt. % to about 40 wt. % synthetic polyol-based ester.
- 12. The lubricant of claim 9, comprising a mixture of about 20 wt. % castor oil and about 20 wt. % synthetic polyol-based ester.
- 13. The lubricant of claim 9, further comprising up to about 20 vol. % solvent.
- 14. The lubricant of claim 13 comprising about 10 vol. % solvent.
- 15. The lubricant of claim 13 wherein in the solvent is Stoddard Solvent.
- 16. The lubricant of claim 1 wherein the polyalphaolefin is a synthetic oil comprising hydrogenated trimer and homopolymer of 1-decene.
- 17. The lubricant of claim 9 wherein the polyalphaolefin is a synthetic oil comprising hydrogenated trimer and homopolymer of 1-decene.
- 18. The lubricant of claim 1 comprising about 25 wt. % polyalphaolefin.
- 19. The lubricant of claim 1 wherein the polyalphaolefin has a viscosity ranging between about 2 and about 6 cSt at 100° C.
- 20. The lubricant of claim 19 wherein the polyalphaolefin has a viscosity ranging between about 2 cSt and about 4 cSt at 100° C.
- 21. A biodegradable lubricant having the composition of claim 20.
- 22. The lubricant of claim 1 wherein the synthetic ester comprises 2-ethylhexyl 2-ethylhexanonate.
- 23. The lubricant of claim 1 wherein the pour point depressant comprises diethylhexyl adipate.
- 24. The lubricant of claim 9 wherein the pour point depressant comprises diethylhexyl adipate.
- 25. The lubricant of claim 1 wherein the surfactant is a polyolefin derivative that comprises a highly branched succinic acid that can be neutralized with potassium hydroxide and amine.
- 26. The lubricant of claim 1 in combination with gasoline.
- 27. The combination of claim 26 wherein the lubricant and gasoline are premixed and packaged.
- 28. The combination of claim 27 wherein the gasoline and lubricant are packaged in a ratio of about 50 to 1 by volume.
- 29. The combination of claim 27 wherein the gasoline and lubricant are packaged in a ratio of about 100 to 1 by volume.
- 30. The combination of claim 27 wherein the lubricant is diluted with a solvent before premixing with gasoline.
- 31. The combination of claim 26 wherein the lubricant is biodegradable.
- 32. A method for making a two-cycle engine lubricant comprising the steps of:
preparing a first premixture by combining a first set of components comprising from about 10 wt. % to about 30 wt. % of a low ash detergent inhibitor and from about 14 wt. % to about 37 wt. % polyalphaolefin, by weight of the lubricant, and mixing the combined first set of components under high shear conditions for about 10 to about 15 minutes; preparing a second premixture by combining a second set of components comprising from about 10 wt. % to about 45 wt. % bio-based ester selected from the group consisting of castor oil, a synthetic polyol-based ester and mixtures thereof, from about 7 wt. % to about 18 wt. % synthetic ester, from 2 wt. % to about 10 wt. % surfactant and from about 2 wt. % to about 5 wt. % pour point depressant, by weight of the lubricant, and mixing the combined second set of components under high shear conditions for a period ranging from about 20 to about 40 minutes; and thereafter adding the first premixture to the second premixture and mixing under high shear conditions for a period ranging from about 30 to about 35 minutes to form the lubricant composition.
- 33. The method of claim 32 wherein mixing takes place at a temperature ranging between about 120° and about 125° F.
- 34. The method of claim 32 wherein the first and second premixtures are further combined with up to about 20 vol. % solvent.
- 35. The method of claim 34 wherein the first and second premixtures are combined with about 10 vol. % solvent.
- 36. The method of claim 34 wherein the solvent is Stoddard Solvent.
- 37. The method of claim 34 wherein the viscosity of the resultant lubricant is not reduced below about 6.5 cSt at 100° C.
- 38. The method of claim 32 wherein the lubricant is then cooled to ambient temperature.
- 39. The method of claim 38 wherein the cooled lubricant is then packaged.
- 40. The method of claim 34 wherein the cooled lubricant is mixed with gasoline and then packaged.
- 41. The method of claim 40 wherein the gasoline and cooled lubricant are mixed in a ratio of about 50 to 1 by volume.
- 42. The method of claim 40 wherein the gasoline and cooled lubricant are mixed in a ratio of about 100 to 1 by volume.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. provisional patent application Serial No. 60/364,277, filed Mar. 13, 2002, as to all common subject matter contained herein.
Provisional Applications (1)
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Number |
Date |
Country |
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60364277 |
Mar 2002 |
US |