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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 10099166 B1

PDFFull Text
Date of Patent:
Oct. 16, 2018

Filed:

Mar. 25, 2015

Porous body, honeycomb filter, method for producing porous body, and method for producing honeycomb filter

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Satoshi Sakashita, Yokkaichi, JP;

Hiroyuki Nagaoka, Kakamigahara, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Erin Snelting

Int. Cl.
CPC ...
C04B 38/00 (2006.01); C04B 38/06 (2006.01); B01D 46/24 (2006.01); C04B 35/565 (2006.01); C04B 35/626 (2006.01); C04B 35/636 (2006.01); B01D 53/94 (2006.01); B01J 35/04 (2006.01); B01J 35/10 (2006.01); B01D 46/00 (2006.01); B29D 99/00 (2010.01); C04B 28/24 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01D 46/2425 (2013.01); B01D 46/0001 (2013.01); B01D 46/2429 (2013.01); B01D 53/94 (2013.01); B01J 35/04 (2013.01); B01J 35/10 (2013.01); B29D 99/0089 (2013.01); C04B 28/24 (2013.01); C04B 35/565 (2013.01); C04B 35/62625 (2013.01); C04B 35/6365 (2013.01); C04B 38/0006 (2013.01); C04B 38/009 (2013.01); C04B 38/06 (2013.01); B01D 2046/2433 (2013.01); B01D 2046/2496 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); C04B 2111/0081 (2013.01); C04B 2111/00793 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/428 (2013.01); C04B 2235/606 (2013.01); C04B 2235/6022 (2013.01); C04B 2235/6026 (2013.01);
Abstract

A porous body constituting a porous partition wallof a honeycomb filterhas a porosity P of 20% to 60%, a permeability k of 1 μmor more and satisfies k≥0.2823 P−10.404. The porous body is obtained by a method for producing, for example, includes (a) a step of acquiring porous body data representing a temporary porous body having porosity higher than target porosity, (b) a step of deriving information about a flow rate for each space voxel during passage of a fluid through inside of the porous body, (c) a step of preferentially replacing the voxel having a low flow rate among the space voxels with the object voxel, and adjusting the porosity of the porous body data to the target porosity, and (d) a step of forming a porous body based on the porous body data after replacement.

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