MOUNTING MAT WITH FLEXIBLE EDGE PROTECTION AND EXHAUST GAS TREATMENT DEVICE INCORPORATING THE MOUNTING MAT

PROBLEM TO BE SOLVED: To provide a mounting mat for mounting a fragile structure within the housing of an exhaust gas treatment device, such as a catalytic converter or diesel particulate trap and to provided the exhaust gas treatment device including a fragile structure mounted in the housing by the mounting mat disposed in a gap between the housing and the fragile structure.SOLUTION: The mounting mat for an exhaust gas treatment device includes first and second major opposite facing surfaces, leading and trailing edges, and opposite lateral edges. At least a portion of one or both of the opposite lateral edges includes an edge protectant that protects the mounting mat against erosion from hot gases encountered during the normal operation of the exhaust gas treatment device. The edge protectant remains flexible after it has been applied to the mounting mat and substantially dried. Also disclosed is the exhaust gas treatment device that includes a housing and a fragile structure mounted within the housing by the mounting mat. Additionally disclosed are methods of making the mounting mat and the exhaust gas treatment device. 【課題】触媒コンバータまたはディーゼル微粒子トラップ等の排気ガス処理装置のハウジング内に脆弱構造体を取付ける装着マット、およびハウジングと脆弱構造体との間のギャップ内に配置される装着マットによりハウジング内に取付けられる脆弱構造体を備えた排気ガス処理装置を提供する。【解決手段】対向する第１および第２主面と、前縁部および後縁部と、対向側縁部とを備えた排気ガス処理装置用装着マット。対向側縁部の一方または両方の少なくとも一部に、排気ガス処理装置の通常の作動中に生じる高温ガスから生じる侵食から装着マットを保護する縁保護剤が設けられている。縁保護剤は、装着マットに塗布されかつ乾燥された後もフレキシビリティを維持する。また、ハウジングと、装着マットによりハウジング内に取付けられた脆弱構造体を備えた排気ガス処理装置、および装着マットおよび排気ガス処理装置の製造方法も開示する。【選択図】図３