02.19.08
Patent No. U.S. 7,226,503 B2
Merck Patent GmbH has obtained a patent for an effect pigment comprised of a glass flake with a thickness of <1.0 μm coated with one or more layers and the softening point of the glass flake being >800°C
Merck Patent GmbH has obtained a patent for an effect pigment comprised of a glass flake with a thickness of <1.0 μm coated with one or more layers and the softening point of the glass flake being >800°C