The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 28, 2019

Filed:

Dec. 18, 2017
Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Shuji Ueda, Nagoya, JP;

Shungo Nagai, Nagoya, JP;

Takayoshi Shibayama, Nagoya, JP;

Yoshihiro Sato, Nagoya, JP;

Makoto Murai, Nagoya, JP;

Kojiro Hayashi, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 35/04 (2006.01); B01D 53/94 (2006.01); B01J 37/02 (2006.01); B01J 21/08 (2006.01);
U.S. Cl.
CPC ...
B01J 35/04 (2013.01); B01D 53/94 (2013.01); B01J 21/08 (2013.01); B01J 37/0215 (2013.01);
Abstract

A circumferential coating material which is coated on a circumferential surface of a honeycomb structure monolithically formed by extrusion, to form a circumferential coating layer, the circumferential coating material containing fused silica in a range of 20 to 75 mass %, containing a color developing agent in a range of 5 to 50 mass %, containing colloidal silica in a range of 5 to 30 mass %, and further containing a silicon based water repellent agent in a range of 1 to 10 mass % to a total mass of the fused silica, the color developing agent, and the colloidal silica.


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