Lubricant compositions

Details Lubricant compositions Lubricant compositions

1996-05-08

1997-12-23

McAvoy, Ellen M.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Sulfurized compound of indeterminate structure, which is a...

508339, 508422, 508436, 508437, 508527, C10M14110, C10M14108

Patent

active

057007640

ABSTRACT:
Lubricants and additive packages that give exceptional performance as heavy duty gear lubricants are described. Four essential oil-soluble additive components are used in combination, viz., a metal-free sulfur-containing antiwear and/or extreme pressure agent having a copper corrosion test activity of not more than 65; a metal-free phosphorus- and nitrogen-containing antiwear and/or extreme pressure agent; an organic carboxylic acid; and an organic amine. Tests comparing the performance of the invention against a commercial premium API GL-5 gear oil additive package selected as the best available package by a well-known OEM have shown the superiority of the present compositions under a number of test conditions.

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patent: 5342531 (1994-08-01), Walters et al.
patent: 5552068 (1996-09-01), Griffith

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