Claims
- 1. An environmentally friendly lubricant, comprising:
a) a transesterified triglycerol oil; and b) a first ester different from the triglycerol oil; wherein the environmentally friendly lubricant is at least 60% biodegradable and has a gelation index less than about 12.
- 2. The environmentally friendly lubricant of claim 1 further comprising:
c) a second ester as a polar viscosity index improver; and d) a hydrogenated copolymer as a non-polar viscosity index improver wherein the second ester is different from the first ester and the triglycerol oil.
- 3. The environmentally friendly lubricant of claim 2 further comprising:
e) a dispersant/inhibitor package; and f) at least one additive.
- 4. The environmentally friendly lubricant of claim 2 wherein the hydrogenated olefin copolymer is a hydrogenated ethylene-propene viscosity index improver.
- 5. The environmentally friendly lubricant of claim 1 wherein the triglyceride is in the amount from about 30 to about 85 wt %.
- 6. The environmentally friendly lubricant of claim 1 wherein the first ester is in the amount from about 10 to about 30 wt %.
- 7. The environmentally friendly lubricant of claim 2 wherein the second ester is in the amount from about 0.1 to about 3 wt %.
- 8. The environmentally friendly lubricant of claim 2 wherein the hydrogenated olefin copolymer is in the amount from about 0.1 to about 6 wt %.
- 9. The environmentally friendly lubricant of claim 3 wherein the dispersant/inhibitor package is in the amount from about 8 to about 14 wt %.
- 10. The environmentally friendly lubricant of claim 3 wherein the at least one additive is a pour point depressant, antioxidant, friction modifier, rust inhibitor, corrosion inhibitor anti-foaming agent or a combination thereof in the amount from about 0.1 to about 5 wt %.
- 11. The environmentally friendly lubricant of claim 2 further comprising mineral oil or synthetic oil.
- 12. The environmentally friendly lubricant of claim 11 wherein the mineral oil or synthetic oil is in the amount from about 0.1 to about 30 wt %.
- 13. The environmentally friendly lubricant of claim 1, wherein the transesterified triglycerol oil is a mixture of a glycerol polyol ester and a non-glycerol polyol ester.
- 14. The environmentally friendly lubricant of claim 1, wherein the transesterified triglycerol oil comprises a glycerol polyol ester but not a non-glycerol polyol ester.
- 15. The environmentally friendly lubricant of claim 1, wherein the transesterified triglycerol oil comprises a non- glycerol polyol ester but not a glycerol polyol ester.
- 16. The environmentally friendly lubricant of claim 1, wherein the transesterified triglycerol oil is obtained by transesterifying a vegetable oil with an ester of short-chain fatty acids.
- 17. The environmentally friendly lubricant of claim 1, wherein the transesterified triglycerol oil is obtained by transesterifying a vegetable oil with a polyol ester.
- 18. The environmentally friendly lubricant of claim 1, wherein the first ester is dibasic ester.
- 19. The environmentally friendly lubricant of claim 1, wherein the first ester is tribasic ester.
- 20. The environmentally friendly lubricant of claim 1, wherein the first ester is polyol ester.
- 21. The environmentally friendly lubricant of claim 1, wherein the lubricant is an automobile engine oil.
- 22. An environmentally friendly automobile engine oil, comprising:
a) from about 0.1 to about 6 wt % of an ester as a polar viscosity index improver or a hydrogenated olefin copolymer as a non-polar viscosity index improver or a blend thereof; b) from about 15 to about 25 wt % of a synthetic ester different from the ester viscosity index improver; c) from about 20 to about 30 wt % of an mineral oil or a blend thereof; and d) the balance is made up with a transesterified triglycerol oil, wherein the environmentally friendly automobile engine oil is at least 60% biodegradable and has a gelation index less than about 12 and the synthetic ester is capable of lowering the gelation index of the engine oil.
- 23. The environmentally friendly automobile engine oil of claim 22 further comprising: from about 0.1 to about 5% of at least one additive.
- 24. The environmentally friendly automobile engine oil of claim 22 wherein the at least one additive is a pour point depressant, antioxidant, friction modifier, rust inhibitor, corrosion inhibitor anti-foaming agent or a combination thereof.
- 25. The environmentally friendly automobile engine oil of claim of claim 22 wherein the automobile engine oil has a viscosity grade of from 0W-20 to 15W-75.
- 26. A method of making an environmentally friendly lubricant, the method comprising:
blending a transesterified triglycerol oil and a first ester wherein the environmentally friendly lubricant is at least 60% biodegradable and has a gelation index less than about 12.
PRIOR RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Application Serial No. 60/324,723 filed Sep. 25, 2001, which is incorporated herein by reference in its entirety.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60324723 |
Sep 2001 |
US |