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Patents

Absorbent Low-Refractive

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

Patent No. U.S. 6,533,857 B1
BASF has received a patent for luster pigments based on multiply coated reflecting platelet-shaped substrates and comprising at least one layer packet comprising a low refractive coating which selectively absorbs visible light and has a refractive index of 1.8 and a reflective coating which is at least partially transparent to visible light and also, if desired, an outer protective layer.

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