Process for producing a ferrofluid, and a composition thereof

Details Process for producing a ferrofluid, and a composition thereof Process for producing a ferrofluid, and a composition thereof

1986-10-16

1988-01-05

Demers, Arthur P.

Compositions

Magnetic

Flaw detection or magnetic clutch

252 6251, 252 6256, H01F 125, C10M 300

Patent

active

RE0325732

ABSTRACT:
The invention relates to a process for producing a ferrofluid, and a composition thereof. More particularly, fine particles of the ferromagnetic materials such as magnetite, ferrite, iron, cobalt alloy, etc. are dispersed stably and uniformly in one dispersing medium selected out of an oil group, an ester group or an ether group, whereby a ferrofluid composition having a high magnetizing capacity is produced effectively.

REFERENCES:
patent: 3700595 (1972-10-01), Kaiser
patent: 3843540 (1974-10-01), Reimers
patent: 3917538 (1975-11-01), Rosenweig
patent: 4094804 (1978-06-01), Shimoiizaka
patent: 4315827 (1982-02-01), Bottenberg
patent: 4430239 (1984-02-01), Wyman

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