Preparation of particularly bluish pearl luster pigments

Details Preparation of particularly bluish pearl luster pigments Preparation of particularly bluish pearl luster pigments

1989-03-09

1990-08-14

Lusignan, Michael

Coating processes

Coating remains adhesive or is intended to be made adhesive

Application to opposite sides of base

106417, B05D 700

Patent

active

049486314

ABSTRACT:
Particularly bluish pearl luster pigments are produced by treating titanium dioxide coated mica pigments where the optical thickness of the titanium dioxide coating is from 50 to 100 nm or from 300 to 340 nm with ammonia at from 750 to 850.degree. C. with constant agitation.

REFERENCES:
patent: 4623396 (1986-11-01), Kimura et al.
H. B. Weiser, "The Journal of Physical Chemistry", vol. 45, pp. 1227-1234, ('41).

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