Patent ID: 6245301
Filing Date: 2001-06-12
Classification: F01N,F02B,Y02T,Y10S

Abstract:
A catalytic converter comprising:(a) a metallic casing having a gas inlet and a gas outlet;(b) a catalytic converter element disposed within said metallic casing, said catalytic converter element having a gas inlet end and a gas outlet end;(c) intumescent mounting mat having first and second opposed major surfaces, a leading edge, and a trailing edge mat being disposed between said catalytic converter element and said metallic casing for positioning the catalytic converter element within said metallic casing and for absorbing mechanical vibration; and(d) an edge protectant material positioned between said metallic casing and said catalytic converter element, and positioned with respect to at least one of the leading or the trailing edges of said mounting mat such that erosion of said at least one of the leading or the trailing edges is reduced when exposed to hot, impinging gases when said catalytic converter is in use, said edge protectant material comprising binder material in the range from about 5 to about 85 percent by weight and dispersed therein glass particles in the range from about 95 to about 15 percent by weight, based on the total weight of said binder material and said glass particles, and said glass particles being capable of forming and being arranged to form a cohesive mass during said use of said catalytic converter, the cohesive mass being capable of forming at a temperature not greater than 950.degree. C., wherein said glass particles are made of a glass having a softening point of at least about 350.degree. C., and wherein the combined weight of said binder material and said glass particles is at least 20 percent by weight of the total weight of said edge protectant material.