MAT MATERIAL, EXHAUST GAS PURIFICATION APPARATUS, AND METHOD FOR MANUFACTURING EXHAUST GAS PURIFICATION APPARATUS

WIPO Patent Application WO/2023/238591

A1

A mat material that is substantially rectangular in plan view and includes inorganic fibers, the mat material characterized by having a first main surface and a second main surface that face away from each other in the thickness direction, a first end surface and a second end surface that face away from each other in the longitudinal direction serving as a wrapping direction, and a first side surface and a second side surface that face away from each other in the width direction orthogonal to both the thickness direction and the longitudinal direction, the mat material moreover being characterized in that: a projecting section that protrudes toward the second end surface during wrapping, and non-protruding sections that are disposed on both width-direction sides of the projecting section and do not protrude toward the second end surface, are formed on the first end surface; a recessed section that corresponds to the shape of the projecting section of the first end surface during wrapping, and non-sunken sections that are disposed on both width-direction sides of the recessed section and correspond to the shapes of the non-protruding sections of the first end surface, are formed on the second end surface; and the ratio (D/C) of the width-direction length (D) of the non-sunken sections to the longitudinal-direction length (C) of the non-sunken sections is 1.0 or greater.

MIYAZAKI SHINTARO (JP)
TARUYA KOUTARO (JP)

PCT/JP2023/017666

December 14, 2023

May 11, 2023

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IBIDEN CO LTD (JP)

B01J33/00; F01N3/28

JP2016108987A	2016-06-20
JP2015063925A	2015-04-09
JP2009024615A	2009-02-05
JP2015045338A	2015-03-12

WISEPLUS IP FIRM (JP)

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