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Patent Searching and Data


Title:
METHOD FOR PRODUCING CYLINDRICAL HONEYCOMB STRUCTURE WITH FILM AND METHOD FOR PRODUCING CATALYST
Document Type and Number:
WIPO Patent Application WO/2017/208794
Kind Code:
A1
Abstract:
Provided is a production method with which it is possible to produce, stably, inexpensively, and in mass quantities, a cylindrical honeycomb structure with a film that can prevent leaching of a catalyst slurry to an outer skin portion during washcoating and can assure breathability of the outer skin portion when used as a GPF. The invention is a method for producing a cylindrical honeycomb structure with a film by forming a film by a coating solution on an outer skin portion of a cylindrical honeycomb structure having partition walls forming a plurality of cells and an outer skin portion serving as a circumferential side surface, the method for producing a cylindrical honeycomb structure with a film characterized in that the cylindrical honeycomb structure is placed between at least two rollers so that the circumferential side surfaces are in contact with each other, coating solution supplied from an application site is applied to the cylindrical honeycomb structure while rotating, and a film is then formed on the outer skin portion by drying or curing.

Inventors:
YAMADA, Takashi (C/O N.E. CHEMCAT CORPORATION, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 24, 〒1056124, JP)
ISHIKAWA, Shingo (C/O N.E. CHEMCAT CORPORATION, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 24, 〒1056124, JP)
SEKIYAMA, Kazuhiro (C/O N.E. CHEMCAT CORPORATION, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 24, 〒1056124, JP)
OISHI, Ryoma (C/O N.E. CHEMCAT CORPORATION, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 24, 〒1056124, JP)
TAKAHASHI, Yoshinori (C/O N.E. CHEMCAT CORPORATION, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 24, 〒1056124, JP)
Application Number:
JP2017/018172
Publication Date:
December 07, 2017
Filing Date:
May 15, 2017
Export Citation:
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Assignee:
N.E. CHEMCAT CORPORATION (4-1 Hamamatsu-cho 2-chome, Minato-ku Tokyo, 24, 〒1056124, JP)
International Classes:
C04B41/85; B01D53/94; B01J35/04; B01J37/02; B05D1/28; B05D7/00
Foreign References:
JP2016055282A2016-04-21
JPS5156845A1976-05-18
JPH11253859A1999-09-21
JPH01312801A1989-12-18
JPS60225652A1985-11-09
JP2000000809A2000-01-07
JP2003340332A2003-12-02
JP2004113887A2004-04-15
Attorney, Agent or Firm:
NISHI, Kazuya et al. (Higashi-ikebukuro Orimoto Bldg. 6F, 3-9-7 Higashi-ikebukuro Toshima-k, Tokyo 13, 〒1700013, JP)
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