Fiber mat containing an organosilicon compound and pollution control device using it

摘要

A fiber mat, preferably a non-intumescent, polycrystalline, needle-punched or stitchbonded aluminia-silica fiber mat, which contains an organosilicon compound. The fiber mat comprises a fiber blanket, preferably an alumina-silica fiber blanket, which is essentially free of organic binder and which is impregnated with an organosilicon compound selected from siloxane compounds, alkoxy group-containing silanes, hydrolysates and condensates of these compounds, and combinations thereof. The preferred organosilicon compound is (3-(2-aminoethyl)aminopropyl)methylsilsesquioxane. Also, a pollution control device containing such a fiber mat. In particular, a catalytic converter 10 comprises a metal housing 4, a monolithic solid catalyst element 1 arranged within the metal housing and a fiber mat 2 arranged between said metal housing 4 and catalyst element 1. An exhaust gas inlet 12 and an exhaust gas outlet 13 are attached to the catalytic converter 10.