Compositions – Magnetic – Flaw detection or magnetic clutch
Patent
1985-09-12
1986-11-25
Demers, Arthur P.
Compositions
Magnetic
Flaw detection or magnetic clutch
252 6251, 252 6255, C09D 523, C10M 344, H01F 125
Patent
active
046247971
ABSTRACT:
A magnetic fluid comprising metal fine particles of cobalt, a nonionic or oil-soluble anionic surface-active agent, and a low-volatile solvent exhibits remarkably high saturation magnetization.
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patent: 4315827 (1982-02-01), Bottenberg
patent: 4356098 (1982-10-01), Chagnon
patent: 4430239 (1984-02-01), Wyman
Ito et al., Chem. Abstracts, 87 (1977), #145014.
Winkler et al., Chem. Abstracts, 86 (1977), #132462.
Mehta et al., J. Mag. & Mag. Mat., 39 (1983), pp. 35-38.
Harada Hiraku
Wakayama Katsuhiko
Demers Arthur P.
TDK Corporation
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