Coated silicate particles

Details Coated silicate particles Coated silicate particles

1988-03-15

1989-11-28

Morris, Theodore

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C04B 1420

Patent

active

048835390

ABSTRACT:
The invention relates to platey silicate particles coated with a metal oxide insoluble in mineral acids, by means of which a nacreous effect is obtained. In the method there is prepared a preliminary-stage product of coated silicate particles, and the particles thus obtained are leached by using a mineral acid, possibly together with some oxidant, whereupon the substrate dissolve selectively so that only the silica skeleton is left.

REFERENCES:
patent: 3340006 (1967-09-01), Mochel
patent: 4192691 (1980-03-01), Armanini

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