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Low sulfur, low ash, and low phosphorus lubricant additive package using an alkylamine salt of dialkylmonothiophosphate

a dialkylmonothiophosphate and additive package technology, applied in the field of lubricating oil compositions, can solve the problems of phosphorus present in the lubricating oil that interferes with catalytic efficiency, affecting the efficiency of catalytic converters or particulate traps, and generating emissions that can pollute the environment. , to achieve the effect of reducing sulfur

Inactive Publication Date: 2005-02-03
AFTON CHEM INTANGIBLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0003] An object of the present invention is to provide an oil soluble lubricating additive package that can be used to formulate a low sulfur, low ash, and low phosphorus content oil for use in either gasoline or diesel engines. Further, a second object of the present invention is to provide lubricating oils that contain minimal sulfur, ash, and phosphorus levels.

Problems solved by technology

Combustion engines generate emissions that can pollute our environment.
However, the lubricating oil used in the engine is oftentimes detrimental to devices such as catalytic converters or particulate traps.
For example, phosphorus present in the lubricating oil is believed to interfere with catalytic efficiency.

Method used

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Examples

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Embodiment Construction

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[0039] In accordance with the foregoing summary, the following presents a detailed description of the preferred embodiment of the invention that is currently considered to be the best mode.

[0040] We begin with a discussion of the various components employed in the present invention. Then we shall present an example of an oil formulation based upon the oil soluble additive package of the present invention. Finally, we conclude with a comparison of an inventive oil formulation against a control formulation in the CAT 1N engine test.

Base Oil

[0041] The base oils useful herein include natural lubricating oils, synthetic lubricating oils and mixtures thereof. Suitable lubricating oils also include basestocks obtained by isomerization of synthetic wax and slack wax, as well as basestocks produced by hydrocracking the aromatic and polar components of the crude. In general, both the natural and synthetic lubricating oils will each have a kinematic viscosity ranging from about 1 to about ...

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Abstract

The present invention provides an oil soluble lubricant additive package comprising at least one alkylamine salt of a dialkylmonothiophosphate. Further, the present invention provides lubricating oils based on the lubricant additive package and methods of use.

Description

TECHNICAL FIELD OF THE INVENTION [0001] The present invention relates to lubricating oil compositions, their method of preparation, and use. More specifically, this invention relates to an oil soluble lubricating additive package to achieve low sulfur, low ash, and low phosphorus levels in fully formulated oil. BACKGROUND OF THE INVENTION [0002] Combustion engines generate emissions that can pollute our environment. In response to increasing regulation and environmental concerns, engine manufacturers have recognized the need to reduce engine emissions. In an effort to reduce emissions in exhaust gases, manufacturers have used particulate traps and catalytic converters. However, the lubricating oil used in the engine is oftentimes detrimental to devices such as catalytic converters or particulate traps. For example, phosphorus present in the lubricating oil is believed to interfere with catalytic efficiency. Further, it is believed that sulfur present in the lubricating oil, after ox...

Claims

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Application Information

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IPC IPC(8): C10M129/10C10M129/54C10M133/12C10M135/04C10M135/10C10M135/30C10M137/10C10M159/16C10M159/20C10M159/22C10M163/00C10M169/04C10N20/00C10N30/00C10N30/04C10N40/04C10N40/25
CPCC10M141/10C10M163/00C10N2240/10C10N2230/04C10N2230/06C10M2223/047C10N2030/04C10N2030/06C10N2040/25
Inventor ESCHE, CARL K.
Owner AFTON CHEM INTANGIBLES
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