Aqueous functional fluid having improved resistance to micro-organisms
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United States of America Patent
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Apr 30, 1996
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app pub date -
Mar 28, 1995
filing date -
Dec 22, 1993
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Abstract
An aqueous functional fluid composition free of formaldehyde and formaldehyde producing agents, more especially an aqueous metalworking fluid composition, having improved resistance to attack by microorganisms is provided. This fluid comprises a) water, b) a water soluble or dispersible functioning agent (e.g. water soluble or dispersible organic lubricant) and c) an antimicrobial effective amount of the combination of d) a water soluble or dispersible nitrogen bearing organic compound (e.g. monoethanolamine) and e) a water soluble or dispersible haloalkynylalkyl carbamate (e.g. 1-iodo-3-propynylbutyl carbamate).
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