Mounting mat for mounting monolith in a pollution control device

摘要

The present invention provides a multilayer mounting mat for mounting a pollution control monolith. The mounting mat comprises a layer of intumescent material between two non-intumescent layers of inorganic fibers defining opposite major sides of the mounting mat. The mounting mat in accordance with the present invention is suitable for mounting a pollution control monolith in a pollution control device and is in particular suitable for mounting fragile monolith such as thin-wall and ultra thin-wall monoliths. Also, the mounting mats conveniently exhibit a good or excellent holding pressure over a wide temperature range and can be formulated in an inexpensive way. The invention also provides a pollution control device comprising a pollution control monolith arranged in a metallic casing with the mounting mat disposed between the metallic casing and pollution control monolith.