Patent No. U.S. 6,517,628 B1
Merck Patent has obtained a patent for pigment mixtures comprising at least two components: multilayer pigments based on mica, SiO2 flakes, glass flakes, Al2O3 flakes or polymer flakes and platelet-shaped, acicular or spherical colorants and/or fillers. The pigment mixture can be used in varnishes, paint, printing inks, powder coatings and plastics.
Pigment Mixture from Merck
Published August 10, 2005
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