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Antiwear composition and method of lubricating driveline device

a technology of lubricating composition and anti-wear, which is applied in the direction of lubricant composition, liquid carbonaceous fuel, additives, etc., can solve the problems of wear on the ring/pinion of the lubricating device, and achieve the effects of reducing or preventing emissions of waste oil, reducing or preventing oxidation, and improving fuel economy/efficiency

Inactive Publication Date: 2015-08-13
THE LUBRIZOL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The composition effectively reduces wear, improves fuel efficiency, controls oxidation, and minimizes sulfur emissions, while maintaining performance across various operating conditions without causing corrosion or deposit formation.

Problems solved by technology

The wear may be observed on a ring and / or pinion of a driveline device.

Method used

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  • Antiwear composition and method of lubricating driveline device
  • Antiwear composition and method of lubricating driveline device
  • Antiwear composition and method of lubricating driveline device

Examples

Experimental program
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examples

[0104]Lubricant Example 1 (EX1) is a 80W-90 gear oil lubricant containing 0.4 wt % of a Primene®81-R amine salt of oleyl phosphate and 0.15 wt % of 2-ethylhexyl tartrate.

[0105]Comparative Lubricant Example 1 (CLE1) is a gear oil lubricant similar to EX1, except it does not contain the tartrate.

[0106]Lubricant Example 2 (EX2) is a 80W-90 gear oil lubricant containing 0.4 wt % of a dibutyl phosphite and 0.15 wt % of 2-ethylhexyl tartrate.

[0107]Comparative Lubricant Example 2 (CLE2) is a gear oil lubricant similar to EX2, except it does not contain the tartrate.

[0108]Comparative Lubricant Example 3 (CLE3) is a gear oil lubricant similar to EX1, except it contains 0.15 wt % of 2-ethyl hexyl tartrate and 0.18 wt % of an amine salt of a thiophosphate as described by preparative examples 6 to 8 of International Patent application WO U.S. Ser. No. 09 / 036,623 as described in paragraph [0107] of said application.

[0109]Comparative Lubricant Example 4 (CLE4) is a gear oil lubricant similar to E...

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Abstract

The present invention relates to an antiwear agent and lubricating compositions thereof. The invention further provides for a method of lubricating a driveline device application by employing a lubricating composition containing the antiwear agent.

Description

FIELD OF INVENTION[0001]The present invention relates to an antiwear agent and lubricating compositions thereof. The invention further provides for a method of lubricating a driveline device by employing a lubricating composition described herein.BACKGROUND OF THE INVENTION[0002]One of the important parameters influencing durability or wear resistance of devices employing a lubricating composition is the effectiveness of phosphorus antiwear or extreme pressure additives at providing devices with appropriate protection under various conditions of load and speed. However, many of the phosphorus antiwear or extreme pressure additives contain sulphur. Due to increasing environmental concerns, the presence of sulphur in antiwear or extreme pressure additives is becoming less desirable. In addition, many of the sulphur-containing antiwear or extreme pressure additives evolve volatile sulphur species, resulting in lubricating compositions containing antiwear or extreme pressure additives h...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10M161/00
CPCC10M161/00C10M141/10C10M2207/289C10M2215/28C10M2219/08C10M2219/106C10M2223/043C10M2223/047C10M2223/049C10N2030/06C10N2030/76C10N2040/04C10M2207/282C10M2215/223C10N2030/10C10N2030/54
Inventor NAJMAN, MOREY N.BAKER, MARK R.MARSIC, VERA M.
Owner THE LUBRIZOL CORP
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