Antioxidant synergist for lubricating compositions

Details Antioxidant synergist for lubricating compositions Antioxidant synergist for lubricating compositions

2011-03-08

2011-03-08

McAvoy, Ellen M (Department: 1771)

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

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

C508S189000, C508S198000, C508S287000, C508S486000, C508S487000, C508S555000, C508S563000

Reexamination Certificate

active

07902131

ABSTRACT:
Molybdenum-free lubricating compositions are provided, having an antioxidation additive composition based on a combination of (1) alkylated diphenylamine (APDA), (2) polyamine dispersant, and (3) monoglyceride, ethoxylated amide, or mixtures thereof. Further synergy is achieved when component (3) is borated, allowing a reduction in phosphorus levels to below 0.08% or even a phosphorus-free composition.

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Vanderbilt Technical Data Vanlube 289.
Yao, Junbing; “The Interaction of Organic Borate Ester with Other Lubricant Additives”; 2005 Annual Meeting of the Lube Scientific and Technical Information Center, Nanchang, China, Sep. 21-23, 2005, pp. 157-163.
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