Title:
OUTER CIRCUMFERENCE COATING MATERIAL AND OUTER CIRCUMFERENCE-COATED HONEYCOMB STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2016/152693
Kind Code:
A1
Abstract:
This outer circumference coating material contains colloidal silica, silicon carbide and titanium oxide having a particle diameter different from that of the silicon carbide, and is applied to the outer circumferential surface of a honeycomb structure 10 so as to form an outer circumferential layer 20, said honeycomb structure 10 being integrally formed by extrusion molding and being mainly composed of a cordierite having a porosity of 50-75%. An outer circumference-coated structure 30 comprises: a honeycomb structure 10 that is provided with a grid-like porous partition wall 33 which defines and forms a plurality of polygonal cells 32 that constitute flow channels and extend from one end face 31a to the other end face 31b; and an outer circumferential layer 20 that is formed by applying the outer circumference coating material to at least a part of the outer circumferential surface 11 of the honeycomb structure 10.
Inventors:
MURAI MAKOTO (JP)
SATO YOSHIHIRO (JP)
AKITA KAZUNARI (JP)
SATO YOSHIHIRO (JP)
AKITA KAZUNARI (JP)
Application Number:
PCT/JP2016/058402
Publication Date:
September 29, 2016
Filing Date:
March 16, 2016
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
C04B41/85; B01D39/20; B01D46/00; B01J33/00; B01J35/04; C04B38/00
Domestic Patent References:
| WO2007072694A1 | 2007-06-28 | |||
| WO2009014200A1 | 2009-01-29 |
Foreign References:
| JP2011206764A | 2011-10-20 | |||
| JP2011084448A | 2011-04-28 |
Other References:
See also references of EP 3279176A4
Attorney, Agent or Firm:
WATANABE, Kazuhira (JP)
Ippei Watanabe (JP)
Ippei Watanabe (JP)
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