Basf Aktiengesellschaft

Claus Kaliba

Norbert Mronga

Werner Ostertag

Raimund Schmid

Helmut Schmidt

Juan A Gomez

Hermann Bidlingmaier

Raymond Ellinghoven

Heinz Friedrich Sutoris

Jacques Dupuis

Konrad Mitulla

Mixture of substances containing compounds with vinyl groups and stabilizers

Luster pigments obtainable by treating titania-coated silicate-based platelets at from 400.degree. to 900.degree. C. with a gas mixture comprising a vaporized organic compound and ammonia are useful for coloring paints, inks, including printing inks, plastics, glasses, ceramic products and decorative cosmetic preparations.

Luster pigments based on reduced titania-coated silicate-based platelets

Interference pigments containing reduced titanium oxide layers for

Preparation of bluish luster pigments by treating titania-coated silicatic platelets with a reducing gas mixture, which comprises treating titania-coated silicatic platelets whose titania coating has a geometric layer thickness of from 10 to 60 nm at from 800.degree. to 900.degree. C. with a gas mixture comprising a vaporized organic compound and ammonia, and also bluish luster pigments based on silicatic platelets comprising a reduced titania coating with a geometric layer thickness of from 10 to 60 nm and CIELAB color coordinates -2.ltoreq.a*.ltoreq.2 and b*.ltoreq.-20 (measuring angle 20.degree., standard illuminant D65).

Preparation of bluish luster pigments

Growing community of inventors

Neuhofen, Germany

Claus Kaliba