Pigment for safety applications

Details Pigment for safety applications Pigment for safety applications

2006-07-18

2006-07-18

Lorengo, J. A. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

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

C106S416000, C106S417000

Reexamination Certificate

active

07077897

ABSTRACT:
The invention relates to a multilayered interference pigment consisting of a transparent carrier material which is coated with alternating layers of colorless, non-absorbent metal oxides having a high and a low refractive index, the difference between the refractive indices being at least 0.1. The inventive pigment can be obtained by alternately coating the transparent carrier material with a metal oxide having a high refractive index and a metal oxide having a low refractive index according to the wet method, by hydrolysing the corresponding water-soluble, inorganic metal compounds, and separating, drying and optionally calcinating the obtained pigment.

REFERENCES:
patent: 5693135 (1997-12-01), Schmid et al.
patent: 6500251 (2002-12-01), Andes et al.
patent: 6689205 (2004-02-01), Bruckner et al.
patent: 4419089 (1995-12-01), None
patent: 19618566 (1997-11-01), None
patent: 19618569 (1997-11-01), None

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