Pink and violet pigments containing antimony oxide and/or niobium oxide, exhibiting thermal stability, resistance to acidic conditions and good light resistance

摘要

Few violet or pink commercial pigments exhibit high thermal stability, resistance to acidic conditions, or good light resistance. Due to this technique, the pigment is within the color space but exhibits improved chemical stability and weathering stability. Pigments based on this technology have a molar ratio of (A ₂ O) _x (BO) _y (C ₂ O ₅ ) _z (DO ₃ ) _w (EO ₂ ) _v , where 2x + y + 2z + w + v It is 100. Wherein A is Li or Li in combination with one or more of Cu, Na, or K, and B is Co or Co in combination with one or more of Ca, Cu, Fe, Mg, Mn, Ni, Sn, or Zn , C is Nb, Sb, or a combination thereof, D is Mo, W or a combination thereof, and E is Sn, Ti, Zr, or a combination thereof. The formulation can be modified by addition of a dopant of Al, B, Ba, Bi, Ca, Ce, Cr, La, P, Pr, Si, Sr, Ta, V, or Y, wherein the dopant concentration is component A + It represents 5 atomic% or less of the total number of moles of B + C + D + E.