Water-based hydraulic fluid
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United States of America Patent
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-
Nov 6, 1984
Issued Date -
N/A
app pub date -
Jun 29, 1983
filing date -
May 3, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Water-based hydraulic fluid for use in industrial hydraulic systems comprising (1) a polyether-based thickener, (2) a lubricant modifier (3) a dispersant, (4) an EP additive, and (5) water. Preferably, the thickener is a polyether polyol capped with an alpha olefin oxide; the lubricant modifier is a combination of a hydrocarbon oil, a fatty alcohol and a glycol; the dispersant is the reaction product of an alkenyl succinic anhydride and a dialkyl alkanolamine, and the EP additive is a dialkyl dithiophosphate.
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