Dual-purpose hydraulic fluid
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United States of America Patent
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-
Jun 24, 1980
Issued Date -
N/A
app pub date -
Feb 26, 1979
filing date -
Mar 13, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A synthetic dual-purpose fluid for use as a hydraulic fluid and in metal cutting operations, particularly where hydraulic fluid leakage cannot be tolerated in hydraulically operated machines designed for metal cutting purposes. The fluid contains in combination 50-70% of an alkylene glycol, 10 to 25% of an alkanol amine, up to 10% boric acid, and 2 to 25% of a phosphate-modified condensation product of a fatty acid and a dialkanolamine.
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