Hydraulic fluids
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United States of America Patent
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Jun 16, 1998
Grant Date -
N/A
app pub date -
Dec 2, 1996
filing date -
Dec 1, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Hydraulic fluid compositions and additive concentrates are described that provide improved wet filtrability. The additive components comprise a mixture formed from at least (a) a zinc dihydrocarbyl dithiophosphate anti-wear agent, (b) a succinimide compound, and optionally (c) one or more alkali metal or alkaline earth metal-containing detergents.
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