Hydraulic fluid compositions
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United States of America Patent
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Sep 11, 1984
Issued Date -
N/A
app pub date -
Apr 19, 1983
filing date -
Mar 11, 1982
priority date (Note) -
Expired
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Abstract
A hydraulic fluid comprising at least one polyethoxylated fatty amino carboxylate zwitterion. Preferred compositions contain polyethoxylated fatty amines and fatty amino carboxylates. Fatty acid quaternary ammonium salt-based biocides, polyethoxylated fatty amino corrosion inhibitors, polyhydroxy alcohol freezing-point depressants and dispersants may be included. Concentrates of the compositions and their method of preparation are disclosed.
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