Low SAP engine lubricant additive and composition containing non-corrosive sulfur and organic borates
First Claim
1. A composition, comprising:
- a. a lubricating oil basestock;
b. an organic boron containing additive present in an amount of at least 0.01 and less than 8.0 weight percent of the composition;
c. a dispersant-detergent-inhibitor system of less than 15 weight percent of the composition;
d. a non-corrosive ashless sulfur additive present in an amount of at least 0.1 and less than 4.0 weight percent of the composition;
e. a zinc dithiophosphate additive present in an amount of at least 0.2 weight percent of the composition and less than 2.0 weight percent of the composition; and
f. the composition having at least 100 PPM and less than 630 PPM phosphorus, at least 105 PPM and less than 710 PPM zinc, at least 1,000 PPM and less than 3,000 PPM sulfur, at least 80 PPM and less than 450 PPM Boron.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is directed to a lubricating oil composition comprising a lubricating oil basestock, a boron-containing additive of at least 0.1 weight percent of the composition and less than 8.0 weight percent, and ashless sulfur additive of at least 0.1 weight percent of the composition and less than 4.0 weight percent, a dispersant-detergent-inhibitor system of less than 15 percent weight percent of the composition, a zinc dithiophosphate additive of at least 0.2 weight percent of the composition and less than 2.0 weight percent of the composition. The elements in the formulated oil composition having at least 100 and less than 630 PPM phosphorus, at least 1,000 PPM and less than 3,000 PPM, at least 100 and less than 630 ppm Phosphorous, and at least 105 PPM and less than 710 PPM zinc. In a second embodiment, an additive composition for lubricating oils is disclosed. In a third embodiment, a method to obtain favorable lubricating properties is disclosed.
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Citations
20 Claims
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1. A composition, comprising:
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a. a lubricating oil basestock; b. an organic boron containing additive present in an amount of at least 0.01 and less than 8.0 weight percent of the composition; c. a dispersant-detergent-inhibitor system of less than 15 weight percent of the composition; d. a non-corrosive ashless sulfur additive present in an amount of at least 0.1 and less than 4.0 weight percent of the composition; e. a zinc dithiophosphate additive present in an amount of at least 0.2 weight percent of the composition and less than 2.0 weight percent of the composition; and f. the composition having at least 100 PPM and less than 630 PPM phosphorus, at least 105 PPM and less than 710 PPM zinc, at least 1,000 PPM and less than 3,000 PPM sulfur, at least 80 PPM and less than 450 PPM Boron. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lubricant additive system for a lubricant composition, comprising:
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a. an organic boron containing additive of at least 0.4 weight percent and less than 32 weight percent of the additive; b. a detergent-dispersant system of less than 60 percent weight percent of the additive; c. a zinc dithiophosphate additive of at least 0.8 weight percent of the composition and less than 8.0 weight percent of the additive; and d. a non-corrosive ashless sulfur additive of at least 0.4 and less than 16.0 weight percent of the additive. - View Dependent Claims (15, 16, 17, 18)
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19. A method comprising
a. obtaining a composition comprising a lubricating oil basestock, an organic boron containing additive present in the amount of at least 0.1 and less than 8 weight percent of the composition, a dispersant-detergent-inhibitor system of less than 15 percent weight percent of the composition, a zinc dithiophosphate additive present in the amount of at least 0.2 weight percent of the composition and less than 2.0, weight percent of the composition, a non corrosive ashless sulfur additive present in the amount of at least 0.1 and less than 4.0 weight percent of the composition wherein the composition has at least 100 PPM and less than 630 PPM phosphorus, at least 105 PPM and less than 710 PPM zinc, at least 1,000 PPM and less than 30,000 PPM sulfur, at least 80 PPM and less than 450 PPM Boron; - and
b. lubricating an engine with the composition to achieve favorable anti-wear, oxidation and cleanliness.
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20. A method for reducing sulfur in exhaust gasses in an internal combustion engine, comprising:
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a. obtaining a composition comprising a lubricating oil basestock, an organic boron containing additive present in the amount of at least 0.1 and less than 8 weight percent of the composition, a dispersant-detergent-inhibitor system of less than 15 percent weight percent of the composition, zinc dithiophosphate additive present in the amount of at least 0.2 weight percent of the composition and less than 2.0, weight percent of the composition, a non corrosive ashless sulfur additive present in the amount of at least 0.1 and less than 4.0 weight percent of the composition wherein the composition has at least 100 PPM and less than 630 PPM phosphorus, at least 105 PPM and less than 710 PPM zinc, at least 1,000 PPM and less than 30,000 PPM sulfur, at least 80 PPM and less than 450 PPM Boron; b. lubricating the internal combustion engine with the composition.
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Specification