公开(公告)号：US20180222083A1

公开(公告)日：2018-08-09

申请号：US15874215

申请日：2018-01-18

Applicant: NGK INSULATORS, LTD.

Inventor： Shungo NAGAI ,  Hiroaki HAYASHI

IPC: B28B11/00 ,  B01D46/24 ,  B01D46/00

CPC classification number: B28B11/006 ,  B01D46/0001 ,  B01D46/2429 ,  B01D46/244 ,  B28B11/007 ,  B28B17/026 ,  C04B26/285 ,  C04B35/195 ,  C04B35/565 ,  C04B35/62635 ,  C04B38/0006 ,  C04B38/0012 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3218 ,  C04B2235/3418 ,  C04B2235/3481 ,  C04B2235/349 ,  F01N3/0222 ,  C04B38/068 ,  C04B38/067 ,  C04B38/0675 ,  C04B38/08 ,  C04B14/024 ,  C04B14/04 ,  C04B14/042 ,  C04B14/10 ,  C04B14/303 ,  C04B14/323 ,  C04B16/08 ,  C04B24/026

Abstract: A manufacturing method of a plugged honeycomb structure including a plugging material preparing step of mixing a ceramic raw material, a pore former, a thickener, an organic binder, a dispersing agent, and water and preparing the plugging material which is slurried, to form the plugging portions, wherein the plugging material preparing step includes: a powder mixing step of mixing the ceramic raw material, the pore former, the organic binder and the dispersing agent each of which is constituted of powder, at predetermined blend ratios, a thickener mixing step of adding and mixing the thickener to a powder mixture obtained by the powder mixing step, and a kneading step of adding the water to a thickener added mixture obtained by the thickener mixing step, to perform kneading.

公开(公告)号：US20210299646A1

公开(公告)日：2021-09-30

申请号：US17177377

申请日：2021-02-17

Applicant: NGK INSULATORS, LTD.

Inventor： Shuji UEDA ,  Shungo NAGAI ,  Hiroaki HAYASHI

IPC: B01J35/04 ,  B01J37/00 ,  C04B38/00 ,  B01D53/88 ,  B01D39/20 ,  B01D46/24

Abstract: A pillar-shaped honeycomb structure including an outer peripheral side wall, a plurality of first cells provided on an inner peripheral side of the outer peripheral side wall, the first cells extending from a first end surface to a second end surface, each opening on the first end surface and having a sealing portion with an average void ratio of 4% or less on the second end surface, and a plurality of second cells provided on the inner peripheral side of the outer peripheral side wall, the second cells extending from the first end surface to the second end surface, each having a sealing portion with an average void ratio of 4% or less on the first end surface and opening on the second end surface, the first cells and the second cells being alternately arranged adjacent to each other with a partition wall interposed therebetween.