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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.

Patent No.:

US 10093808 B1

PDFFull Text
Date of Patent:
Oct. 09, 2018

Filed:

Sep. 19, 2016

Circumferential coating material and circumferentially coated honeycomb structure

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Makoto Murai, Nagoya, JP;

Yoshihiro Sato, Nagoya, JP;

Kazunari Akita, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Daniel J Schleis

Int. Cl.
CPC ...
C09D 1/00 (2006.01); C04B 38/00 (2006.01); B01D 46/24 (2006.01); B01D 39/20 (2006.01); B01D 46/00 (2006.01); B01J 33/00 (2006.01); B01J 35/04 (2006.01); C04B 41/85 (2006.01); C04B 41/00 (2006.01); C04B 41/50 (2006.01); F01N 3/021 (2006.01); F01N 3/022 (2006.01); B01J 37/02 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C09D 1/00 (2013.01); B01D 39/20 (2013.01); B01D 46/00 (2013.01); B01D 46/2444 (2013.01); B01J 33/00 (2013.01); B01J 35/04 (2013.01); B01J 37/0232 (2013.01); C04B 38/00 (2013.01); C04B 41/009 (2013.01); C04B 41/5089 (2013.01); C04B 41/85 (2013.01); F01N 3/021 (2013.01); F01N 3/0222 (2013.01); B01D 2046/2433 (2013.01); B01D 2046/2437 (2013.01); C04B 2111/0081 (2013.01); C04B 2111/00793 (2013.01); F01N 2260/24 (2013.01); F01N 2510/00 (2013.01); Y02T 10/20 (2013.01);
Abstract

A circumferential coating material contains colloidal silica, silicon carbide, and titanium oxide different in particle diameters from silicon carbide, coats a circumferential surface of a honeycomb structure monolithically formed by extrusion, including as a main component, cordierite having a porosity of 50 to 75%, and forms a circumferential coating layer. A circumferentially coated honeycomb structure has a honeycomb structure comprising latticed porous partition walls defining and forming a plurality of polygonal cells forming through channels and extending from one end face to the other end face, and a circumferential coating layer formed by coating at least a part of a circumferential surface of the honeycomb structure with the circumferential coating material.

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