Title:
MAT MATERIAL, EXHAUST GAS PURIFICATION DEVICE, AND METHOD FOR PRODUCING MAT MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/163007
Kind Code:
A1
Abstract:
A mat material comprising inorganic fibers and having multiple interlaced points formed by needling on the front surface and/or back surface thereof, the mat material being characterized in that: the density ρ of the interlaced points is in the range of 0.5/cm2≤ρ<18/cm2; in a 25 mm×25 mm region, a first region, which is a 4 mm×4 mm region in which there are no interlaced points, and/or a second region, which is a 3 mm×8 mm region in which there are no interlaced points, is disposed; an inorganic binder is included; the shear modulus is at least 0.20; and the surface pressure after baking is at least 50 kPa.
Inventors:
KOGO YUTA (JP)
KAWABE TAKAYUKI (JP)
YAMAZAKI TOMOHISA (JP)
KAWABE TAKAYUKI (JP)
YAMAZAKI TOMOHISA (JP)
Application Number:
PCT/JP2023/006346
Publication Date:
August 31, 2023
Filing Date:
February 22, 2023
Export Citation:
Assignee:
IBIDEN CO LTD (JP)
International Classes:
D04H1/488; B01D46/00; B01D53/94; D06M11/45; D06M11/79; D06M15/263; F01N3/28
Domestic Patent References:
| WO2015045636A1 | 2015-04-02 | |||
| WO2015170610A1 | 2015-11-12 |
Foreign References:
| JP2001065337A | 2001-03-13 | |||
| JP2014190191A | 2014-10-06 | |||
| JP2003266572A | 2003-09-24 | |||
| US20140248814A1 | 2014-09-04 |
Attorney, Agent or Firm:
WISEPLUS IP FIRM (JP)
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