Patents

GONIOCHROMATIC BRIGHT

GONIOCHROMATIC BRIGHT
PIGMENTS FROM BASF
Patent No. U.S. 7,300,510 B2
BASF has been granted a patent
for goniochromatic luster pigments
comprised of at least one dielectric
low-refractive interference-colored
layer comprised of a polar organic solvent
which can interact with the layer
material via hydroxyl or amide
groups; the layer having a geometric
layer thickness in the range from 80
to 800 nm

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