Lubricating oil compositions
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United States of America Patent
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Apr 10, 2012
Grant Date -
Apr 1, 2010
app pub date -
Sep 30, 2008
filing date -
Sep 30, 2008
priority date (Note) -
Expired
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Abstract
A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity, and (b) an oil-soluble tetra-functional hydrolyzable silane compound of the general formula Si—X4 or a hydrolysis product thereof, wherein each X is independently a hydroxyl-containing group, hydrocarbyloxy-containing group, acyloxy-containing group, amino-containing group, monoalkyl amino-containing group or a dialkyl amino-containing group, and further wherein the lubricating oil composition is free of any zinc dialkyl dithiophosphate.
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