Functional fluids and liquid cleaning compositions and suspending media
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United States of America Patent
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Sep 15, 1998
Issued Date -
N/A
app pub date -
Jun 1, 1995
filing date -
Aug 24, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Aqueous structured surfactants, e.g., lamellar, or preferably spherulitic systems optionally containing suspended solids are used as functional fluids, such as drilling fluids, cutting fluids, hydraulic fluids, heat transfer fluids, construction muds and lubricants. A composition consisting essentially of: water; a surfactant or mixture of surfactants present in a concentration sufficient to form a mobile spherulitic or dispersed lamellar phase in the absence of an electrolyte; and a substantially water insoluble functional material, suspended in the composition, the composition being substantially free from electrolyte.
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