Lubricant for magnetic recording medium, magnetic recording medium, manufacturing method of magnetic recording medium, and magnetic recording and reproducing device
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United States of America Patent
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May 24, 2016
Grant Date -
Jul 16, 2015
app pub date -
Dec 3, 2014
filing date -
Jan 16, 2014
priority date (Note) -
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Abstract
A lubricant for a magnetic recording medium of the present invention includes an organic compound having a fullerene skeleton, and the organic compound having the fullerene skeleton is expressed by the general formula (i), and at least one hydroxyl group on a terminal of the organic compound having the fullerene skeleton is substituted by any one of hydrogen, a methyl group, and a trifluoro methyl group, in which A is a group in which any one hydroxyl group on a terminal of a fluoro compound is not included, and R1 is an organic group having 1 to 24 carbon atoms.
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