Aqueous fluids
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United States of America Patent
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-
Jul 3, 1990
Issued Date -
N/A
app pub date -
Jul 12, 1989
filing date -
Sep 1, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Aqueous fluids having a good combination of anti-bacterial properties, stability in hard water, a reduced foaming tendency in soft water and at times a reduced boron content are obtained by the use as additive of a combination of a water-soluble hydroxy di- or tri- carboxylic acid an an excess of an alkanolamine, additive concentrates for incorporation into the aqueous fluids and the aqueous fluids themselves.
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