Ferrofluid having improved oxidation resistance
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United States of America Patent
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Aug 12, 1997
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N/A
app pub date -
Dec 15, 1994
filing date -
Dec 15, 1994
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Abstract
The present invention relates to a ferrofluid composition having improved oxidation resistance, which contains a carrier liquid, magnetic particles in a stable colloidal suspension, and from about 5% to about 50% by weight of an antioxidant.
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