Compositions – Magnetic – Flaw detection or magnetic clutch
Patent
1996-12-03
1998-03-24
Bonner, Melissa
Compositions
Magnetic
Flaw detection or magnetic clutch
252 6254, H01F 144
Patent
active
057308934
ABSTRACT:
A novel magnetic colloid composition containing a polar ester carrier liquid, magnetic particles, and an acid terminated poly (12-hydroxystearic acid) dispersant of the Formula I: ##STR1## where "R" is selected from the group consisting of alkyls, aralkyls, and aryls, substituted or unsubstituted, and "n" is an integer from 0 to 4, or mixtures thereof where "R" and "n" may be the same or different.
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Tsuda Shiro
Wyman John E.
Bonner Melissa
Ferrotec Corporation
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