Method for coating surface of fine particles with a layer of fin

Details Method for coating surface of fine particles with a layer of fin Method for coating surface of fine particles with a layer of fin

1991-03-22

1992-09-08

Beck, Shrive

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

4274192, 428403, B05D 724

Patent

active

051457199

ABSTRACT:
Minute particles having the surface thereof coated with a dense layer of extremely fine particles of a metal oxide are produced by dispersing the fine particles having water adsorbed in advance on the surface thereof in a hydrophobic organic solvent having an alcohol and optionally an amine dissolved therein and adding to the resultant dispersion a hydrophobic organic solvent having a metal alkoxide dissolved therein, thereby inducing hydrolysis of the metal alkoxide on the surface of the fine particles and consequent deposition of a metal oxide on the surface of the fine particles.

REFERENCES:
patent: 4713233 (1987-12-01), Marsh et al.
patent: 5011725 (1991-04-01), Foster
Progress of Chemical Industry 23 Molecule Chemical Industry Chapter 7, pp. 106-113, S. Hirano, et al. (undated).
Journal of Color Material Society, vol. 55, 1982, pp. 657-666, Y. Kawashima.
Abstracts of Papers Read at Granule Formulation and Design Symposium, pp. 67-70, F. Yokoyama, et al. (undated).

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