| 摘要 |
A multilayer mat ( 10 ) for mounting a pollution control element ( 40 ) in a pollution control device ( 60 ). The mat comprises at least one non-intumescent layer comprising ceramic fibers and having a width defined by opposite lateral edges, and at least one intumescent layer comprising an intumescent material and having a width defined by opposite lateral edges. The width of the intumescent layer is less than the width of the non-intumescent layer. The intumescent layer can have an exposed major surface.
|
