Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Reexamination Certificate
2005-11-01
2005-11-01
Dixon, Merrick (Department: 1774)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
C428S087000, C428S105000, C428S312200, C428S318800, C428S113000, C428S340000, C428S364000, C029S890000
Reexamination Certificate
active
06960386
ABSTRACT:
An object of the invention is to provide a holding and sealing mat material of a catalytic converter for purifying an exhaust gas which can prevent inorganic fibers from flying in all directions from a surface of the holding and sealing mat material, and can keep a working environment at a time of assembling good. In the holding and sealing mat material of a catalytic converter for purifying an exhaust gas, which is arranged between a catalyst carrier and a shell covering the catalyst carrier from the outside thereof, the holding and sealing mat material includes a mat-like material consisting of inorganic fibers and being formed in a mat shape and a binder of 0.5 to 20 weight % of an organic binder or an inorganic binder, which is attached to the mat-like material, wherein a filling bulk density of the holding and sealing mat material after being assembled is within a range between 0.1 and 0.6 g/cm3, and wherein in the case of estimating distribution rates of solids constituents in the binder attached to the mat-like material by dividing the mat-like material into three equal parts of an upper portion, a middle portion and a lower portion in a thickness direction, the distribution rates of the upper portion and the lower portion are higher than that of the middle portion.
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Dixon Merrick
Ibiden Co. Ltd.
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