Title:
HONEYCOMB SUBSTRATE FOR CATALYST SUPPORT, AND CATALYTIC CONVERTER FOR EXHAUST GAS PURIFICATION
Document Type and Number:
WIPO Patent Application WO/2018/159556
Kind Code:
A1
Abstract:
[Problem] The purpose of the invention is to improve adhesion of a catalyst layer and an oxide film in a honeycomb substrate for catalyst support. [Solution] A honeycomb substrate for catalyst support used in purification of exhaust gas is characterized by comprising a honeycomb body and an oxide film that is formed on the surface of the honeycomb body and that has α-alumina as a main component, and in that the oxide film includes multiple oxide projections that are formed to be dispersed on the film surface and that comprise a contracted shape in which the width becomes narrower near the honeycomb body, and the density of the projection formations on the film surface is 0.20 (pieces/μm2) – 3.00 (pieces/μm2).
Inventors:
KAWASOE SHINJI (JP)
INAGUMA TOORU (JP)
KAKO TAKUZO (JP)
INAGUMA TOORU (JP)
KAKO TAKUZO (JP)
Application Number:
PCT/JP2018/007035
Publication Date:
September 07, 2018
Filing Date:
February 26, 2018
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN MAT CO (JP)
International Classes:
B01J35/04; B01D53/94; B01J32/00; F01N3/28
Domestic Patent References:
| WO1997005238A1 | 1997-02-13 |
Foreign References:
| JPH09505238A | 1997-05-27 | |||
| JP2004169111A | 2004-06-17 | |||
| JP2003164760A | 2003-06-10 | |||
| JPS5696726A | 1981-08-05 | |||
| JP2008023518A | 2008-02-07 | |||
| JP2017039069A | 2017-02-23 | |||
| JPH03114547A | 1991-05-15 | |||
| JP2004216242A | 2004-08-05 | |||
| JPS57181B2 | 1982-01-05 |
Other References:
WU,XIAODONG ET AL.: "Influence of an aluminized intermediate layer on the adhesion of a y -Al2O3 washcoat on FeCrAl", SURFACE & COATINGS TECHNOLOGY, vol. 190, 14 May 2004 (2004-05-14), pages 434 - 439, XP004653630
KUNIO KATAOKASADABUMI ISSHIKI, PRODUCTION RESEARCH, vol. 12, no. 8
See also references of EP 3590599A4
KUNIO KATAOKASADABUMI ISSHIKI, PRODUCTION RESEARCH, vol. 12, no. 8
See also references of EP 3590599A4
Attorney, Agent or Firm:
MIZUNO, Katsufumi et al. (JP)
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