Process for preparing magnetically responsive microparticles

Details Process for preparing magnetically responsive microparticles Process for preparing magnetically responsive microparticles

1995-05-22

1997-07-15

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

427129, 427130, 427131, 427190, 427203, 427205, 42721333, 42721336, 427214, 427222, 427322, 4273855, 4274121, 4274192, 4274301, B05D 104

Patent

active

056481241

ABSTRACT:
Magnetically responsive microparticles and a method for their production are described. Oppositely charged core particles and magnetite are heterocoagulated, redispersed and optionally coated. The microparticles are colloidally stable and have negligible retentivity.
Having now fully described the invention, it will be apparent to one of ordinary skill in the art that many changes and modifications can be made thereto without departing from the spirit or scope of the invention as set forth herein.

REFERENCES:
patent: 4695392 (1987-09-01), Whitehead et al.
patent: 5091206 (1992-02-01), Wang et al.

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