Low sediment friction modifiers
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United States of America Patent
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Issued Date -
Jun 9, 2005
app pub date -
Dec 9, 2003
filing date -
Dec 9, 2003
priority date (Note) -
Abandoned
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Abstract
An additive mixture for lubricant oils includes an overbased alkaline earth metal sulfonate, and at least one friction modifier selected from the group consisting of an overbased alkaline earth carboxylate, the reaction product of an alkanolamine with a fatty acid or a fatty acid ester and the reaction product of thiodiglycol or a dialkylene glycol with a fatty acid or a fatty acid ester. The additive mixture, when combined with a lubricant stock, provides a lubricant composition characterized by less sedimentation during storage.
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