Toyo color patents
metallic pigment
Patent No. U.S. 7,045,212 B2
Toyo Aluminum Kabushiki Kaisha has obtained a patent for a color metallic pigment comprised of metal particles and a single layer or multilayer coat covering the surface of each metal particle. It further comprises a molybdenum-phosphorus coat consisting of an oxide film elementally containing molybdenum and/or phosphorus on the surface of