Colored pigments

Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing

Patent

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Details

106304, 106300, 106308B, 106299, 424 63, C09C 100

Patent

active

039516792

ABSTRACT:
Blue colored mica flake pigments are provided by coating mica flakes, or mica flakes optionally coated with a uniform metallic oxide layer, with a uniform layer of a low-solubility iron compound convertible into Berlin blue [ferric hexacyanoferrate(II)], and then converting this layer into Berlin blue.

REFERENCES:
patent: 3711308 (1973-01-01), Brand et al.
patent: 3874890 (1975-04-01), Bernhard

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