Fluid responsive to a magnetic field
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United States of America Patent
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Feb 12, 1991
Grant Date -
N/A
app pub date -
Sep 22, 1989
filing date -
Sep 22, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rheological fluid composition which is responsive to a magnetic field. The composition comprises magnetizable particulate, silica gel as a dispersant and a vehicle. A preferred magnetizable particulate is insulated, reduced carbonyl iron.
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