Novel Color Pigments Based On AM12O19 Oxides


Technology Description


Colors available for these new pigments are different shades of blue, pink, rosy, golden brown, turquoise and more. Specifically, this technology describes a nontoxic, inexpensive and stable blue pigment superior to commercially available ones based on CoAl2O4.


Features & Benefits


  • New blue colors are durable, nontoxic, and inexpensive
  • Demonstrate better Near Infrared Reflectance (NIR) than Co blue pigment CoAl2O4
  • Can be easily prepared through traditional ceramic powder processing techniques in air


Background of Invention


Many existing pigments are unstable, toxic and expensive to make. The pigments we have discovered contain mainly Ca, Al, Ni, Mn, Fe, Zn, Mg, Sn, Ti, V, La etc. but no toxic elements. They are thermally stable and are resistant to attack by acid and alkaline environments.


Novel Color Pigments Based On AM12O19 (A=Ca, Sr, Ba, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, In; and M=Al, Ni, Ti, V, Cr, Mn, Fe, Co, Cu, Zn Ga, Ge, Si, In, Sn, Mg, Zr, Nb, Ta, Sb, Te) Oxides



US Patent 9,758,385

Patent Information:
Tech ID:
Chris Stoner
Oregon State University
Munirpallam (mas) Subramanian
Jun Li
Arthur Sleight
Dyes and Colorants
Materials Science
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