Effect coatings whose perceived color depends on the viewing ang

Details Effect coatings whose perceived color depends on the viewing ang Effect coatings whose perceived color depends on the viewing ang

1997-04-01

1998-11-10

Cameron, Erma

Coating processes

With post-treatment of coating or coating material

Heating or drying

4273935, 427409, 4274121, 428 1, 2522994, 2522995, 25229961, 25229963, B05D 302, B05D 716, C09K 1902, C09K 1942

Patent

active

058340645

ABSTRACT:
A process for preparing an effect coating having a perceived color which is dependent on the viewing angle, which comprises applying one or more non-curable cholesteric liquid-crystalline polymers, or at least one non-curable nematic liquid-crystalline polymer and at least one non-curable cholesteric liquid-crystalline polymer, in the form of a melt or in solution, to the article that is to be coated, and converting the applied polymer by temperature treatment into a film having a perceived color which is dependent on the viewing angle.

REFERENCES:
patent: 4410570 (1983-10-01), Kreuzer et al.
patent: 4980081 (1990-12-01), Ringsdorf et al.
patent: 5093025 (1992-03-01), Koide et al.
patent: 5362315 (1994-11-01), Muller-Rees et al.
Translation of EP699722, Mar. 1996.

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