Composition Useful for Providing Nox Removing Coating On Material Surface
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United States of America Patent
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Issued Date -
Jan 3, 2008
app pub date -
Sep 14, 2004
filing date -
Sep 14, 2004
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Abstract
The presente invention relates to a composition having photocatalytic self-cleaning properties for use as a NO.sub.x removing coating on material surface, comprising at least: a) photocatalytic titanium dioxide particles having at least a de-NO.sub.x activity, b) particles having a de-HNO.sub.3 activity, c) an opacifying agent, and d) a silicon based-material in which said particles are dispersed, wherein said photocatalytic particles have a crystalline size ranging from 1 to 50 nm.
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