Titanium dioxide pigment treated to suppress yellowing in polymers
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United States of America Patent
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Mar 22, 1983
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N/A
app pub date -
Dec 10, 1981
filing date -
Jul 30, 1981
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Expired
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Abstract
A titanium dioxide pigment is provided for use in polymeric compositions comprising a pyrogenic titanium dioxide pigment which has been treated with a composition comprising an organophosphate/alkanolamine addition product. This invention provides for a novel method for treating a pyrogenic titanium dioxide pigment in order to reduce yellowing when such pigment is incorporated into a polymeric composition comprising adding to such pigment a composition which comprises an organophosphate/alkanolamine addition product.
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