Lubricating compositions
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United States of America Patent
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-
Jan 27, 1987
Grant Date -
N/A
app pub date -
Jul 8, 1985
filing date -
Jul 8, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Lubricating oils having improved antioxidant and anti-wear properties are obtained by adding a minor amount of a reaction product made by reacting at least one aliphatic olefinically unsaturated hydrocarbon containing from about 8 to 36 carbon atoms (preferably an .alpha.-olefin) concurrently with sulfur and at least one fatty acid ester (preferably an oil such as cottonseed oil) to obtain a reaction intermediate and reacting this intermediate with additional sulfur and a dimer of cyclopentadiene or lower C.sub.1-4 alkyl substituted cyclopentadiene dimers, such as methylcyclopentadiene dimer.
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