Environmentally acceptable lubricant compositions
AssigneePolnox Corporation
InventorsAshok L. Cholli, Murat Tonga, Sreenivasa Ramana
Life of this patent
Estimating the term…
Abstract
Compositions comprise first antioxidants and first additives, such as surface, performance-enhancing, lubricant protective, and optionally second and/or second antioxidants. The compositions are useful for improving environmentally acceptable lubricants, lubricant oils, and other lubricant materials. The compositions and methods generally provide longer shelf lives, increased oxidative resistance, improved quality, and/or enhanced performance to lubricants, lubricant oils, hydraulic fluid, and turbine oils.
Claims29
A lubricant composition comprising:
- a) a bio-oil;
- b) a first antioxidant represented by a mixture of the following compounds:
- wherein each R′ is independently H, a C1-C10 alkyl, or styrene
- and
- n′ is 1 or 2;
- wherein R″ is a C1-C10 alkyl
- c) a multifunctional additive represented by
- wherein R1 is H, CH3, OCH3, or a linear or branched C1-C9 alkyl chain;
- i=1, 2, or 3;
- n is an integer from 1 to 15;
- R is
- and
- Rd is a C1-C24 linear or branched alkyl chain;
- and
- d) at least one first additive selected from the group consisting of:
- i) a surface additive;
- ii) a performance-enhancing additive;
- and
- iii) a lubricant protective additive;
- wherein the concentration of the first antioxidant is from about 0.05 wt. % to about 5 wt. % of the lubricant composition, and the concentration of the first additive is from about 0.05 wt. % and to about 5 wt. % of the lubricant composition.
A method of forming a lubricant composition, the method comprising combining:
- a) a bio-oil;
- b) a first antioxidant represented by a mixture of the following compounds:
- wherein each R′ is independently H, a C1-C10 alkyl, or styrene
- and
- n′ is 1 or 2;
- wherein R″ is a C1-C10 alkyl
- and
- c) a multifunctional additive represented by a mixture of isomeric mixtures
- wherein R is H, CH3, OCH3, or a linear or branched C1-C9 alkyl chain;
- I=1, 2, or 3;
- n is an integer from 1 to 15;
- R is
- and
- Rd is a C1-C24 linear or branched alkyl chain;
- and
- d) at least one first additive selected from the group consisting of:
- i) a surface additive;
- ii) a performance-enhancing additive;
- and
- iii) a lubricant protective additive;
- wherein the concentration of the first antioxidant is from about 0.05 wt. % to about 5 wt. % of the lubricant composition, and the concentration of the first additive is from about 0.05 wt. % and to about 5 wt. % of the lubricant composition.
A kit for forming a lubricant, the kit comprising:
- a) a carrier oil having dissolved therein:
- i) a first antioxidant represented by a mixture of the following compounds:
- wherein each R′ is independently H, a C1-C10 alkyl, or styrene
- and
- n′ is 1 or 2;
- wherein R″ is a C1-C10 alkyl
- ii) a multifunctional additive represented by
- wherein:
- R1 is H, CH3, OCH3, or a linear or branched C1-C9 alkyl chain;
- i=1, 2, or 3;
- n is an integer from 1 to 15;
- R is
- and
- Rd is a C1-C24 linear or branched alkyl chain;
- and
- iii) at least one first additive selected from the group consisting of:
- 1) A surface additive;
- 2) A performance-enhancing additive;
- and
- 3) A lubricant protective additive.
Dependencies are inferred from the claim text.