Traction fluid lubricants derived from coal tar
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United States of America Patent
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-
Jun 7, 1983
Grant Date -
N/A
app pub date -
Sep 2, 1980
filing date -
Sep 2, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A traction fluid having a lubricant basestock comprising hydrogenated coal tar containing a saturated fraction having a major portion made up of multiring components of at least three rings and an aromatic fraction which comprises at least 12% by weight of said fluid and contains at least 50% by volume of multiring components.
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