Low-vapor-pressure ferrofluids and method of making same

Details Low-vapor-pressure ferrofluids and method of making same Low-vapor-pressure ferrofluids and method of making same

C - Chemistry, Metallurgy

09

K

31/135

C09K 3/00 (2006.01)

Patent

CA 1164643

ABSTRACT OF THE DISCLOSURE A stable ferrofluid composition is described which comprises a colloidal dispersion of finely-divided magnetic particles in a liquid, low-pressure, polyphenyl ether carrier and a dispersing amount of a surfactant, which surfactant comprises a polyphenyl ether surfactant containing a functional group, such as an acidic group, and an aromatic tail group which is soluble in the polyphenyl ether carrier, to provide a stable ferrofluid composition.

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