Titanium dioxide pigment composition
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United States of America Patent
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Nov 8, 2005
Grant Date -
May 20, 2004
app pub date -
Mar 12, 2002
filing date -
Mar 28, 2001
priority date (Note) -
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Abstract
The invention relates to a titanium dioxide pigment mixture comprising a pigment having high greying stability (pigment type A) and a pigment having increased SiO2 and Al2O3 content in flaky precipitation (pigment type B). Said mixture provides, for example in paper, a high level of opacity for sufficient greying stability. If necessary, the light-fastness of the paper can be further increased by means of known production-conditioned measures on pigment type B.
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