Titanium dioxide pigment particles with doped, dense SiO 2...

Details Titanium dioxide pigment particles with doped, dense SiO 2... Titanium dioxide pigment particles with doped, dense SiO 2...

2011-03-15

2011-03-15

Hailey, Patricia L (Department: 1732)

Compositions: coating or plastic

Materials or ingredients

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

C106S442000, C106S443000, C106S446000, C428S403000, C428S143000, C428S144000, C428S145000

Reexamination Certificate

active

07905953

ABSTRACT:
A method of predicting photostability of coatings with various dopants on titanium dioxide pigment particles is disclosed. Calculations of the density of states show that a doped coating which reduces the density of states near the band edge or increases the density of states within the band gap of the pigment particles increases the photostability of the doped pigment.

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