ASHLESS LUBRICANT COMPOSITION
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United States of America Patent
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Issued Date -
Aug 5, 2010
app pub date -
Jan 28, 2010
filing date -
Feb 2, 2009
priority date (Note) -
Abandoned
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Abstract
A lubricant composition with improved antioxidant capability is provided by way of an additive composition containing a metal free sulfur-containing compound, an aromatic amine, and a hindered amine. Particularly effective metal-free sulfur-containing compounds include ashless dithiocarbamates, such as methylenebis(dibutyldithiocarbamate), and sulfurized fatty acids.
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