Patent ID: 7854905
Filing Date: 2010-12-21
Classification: B01D,B01J,B82Y,C04B,F01N,Y02A,Y02T

Abstract:
1. A holding material for a pollution control element, which is to be wound about and hold the pollution control element inside a casing and disposed between the casing and the pollution control element, said holding material comprising: an inorganic fiber material mat having a thickness, an outer peripheral surface and an inner peripheral surface; and at least one friction layer comprising inorganic colloidal particles adhered to one of the inner and outer peripheral surface of said mat, and said inorganic colloidal particles comprising fine particles of an inorganic material, wherein said friction layer contacts at least one of the casing and the pollution control element, when said holding material is disposed in a pollution control apparatus between the casing and the pollution control element.