Colorants comprising tin and rare earth elements

Details Colorants comprising tin and rare earth elements Colorants comprising tin and rare earth elements

2007-12-17

2010-11-23

Green, Anthony J (Department: 1793)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S426000, C423S593100, C423S594900, C423S598000

Reexamination Certificate

active

07837781

ABSTRACT:
A pigment of empirical compositionin-line-formulae description="In-line Formulae" end="lead"?(TiO2)a(ZnO)b(SnO)c(SnO2)d(RExOy)e(AEO)f(MuOv)gin-line-formulae description="In-line Formulae" end="tail"?whereinRE is a metal from transition group 3 or a rare earth metal,AE is an alkaline earth metal, andM is any other metal, wherea=0.8-3; b=0.5-1.3; c=0.5-1.3; d=0-0.5; e=0-0.3; f=0-0.3; and g=0-0.1,and e+f≧0.01.Preferably RE is selected from the elements Y, La, Ce, and Pr.The pigments are used as colorants for coloring paints, inks, plastics, and rubber.

REFERENCES:
patent: 4448608 (1984-05-01), Jenkins et al.
patent: 0 113 229 (1984-07-01), None
patent: 1 690 523 (2006-08-01), None

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