U.S. 8,211,225 B2
Sun Chemical Corp. has been awarded a patent for a pigment comprised of a substrate and a layer, wherein the layer has regions of y-Fe2O3 and a-Fe2O3, wherein the region of y-Fe2O3 is further from the substrate than the region of a-Fe2O3.
Sun Chemical Patents Magnetic Pigments
Published May 8, 2013
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