High-temperature-resistant coated fiber layer and particulate trap with the coated fiber layer
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United States of America Patent
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Jul 21, 2009
Grant Date -
Oct 20, 2005
app pub date -
Jun 6, 2005
filing date -
Dec 5, 2002
priority date (Note) -
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Abstract
A high-temperature-resistant fiber layer for an open particulate trap for purifying exhaust gases from mobile internal combustion engines includes metal fibers. At least a section of the fiber layer has a catalytically active and/or adsorbent coating, in particular such as that of an oxidation catalyst and/or a three-way catalyst and/or an SCR catalyst. A longitudinal section, which is substantially perpendicular to a largest outer surface, has openings formed therein with an average size of 0.01 mm to 0.5 mm, in particular 0.05 mm to 0.25 mm. A particulate trap with the coated fiber layer is also provided.
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