Invention Grant
US08128722B2 Honeycomb filter for purifying exhaust gases, adhesive, coating material, and manufacturing method of honeycomb filter for purifying exhaust gases
有权
用于净化废气的蜂窝过滤器,粘合剂,涂料,以及用于净化废气的蜂窝过滤器的制造方法
- Patent Title: Honeycomb filter for purifying exhaust gases, adhesive, coating material, and manufacturing method of honeycomb filter for purifying exhaust gases
- Patent Title (中): 用于净化废气的蜂窝过滤器,粘合剂,涂料,以及用于净化废气的蜂窝过滤器的制造方法
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Application No.: US12116503Application Date: 2008-05-07
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Publication No.: US08128722B2Publication Date: 2012-03-06
- Inventor: Atsushi Kudo , Masafumi Kunieda
- Applicant: Atsushi Kudo , Masafumi Kunieda
- Applicant Address: JP Ogaki-shi
- Assignee: Ibiden Co., Ltd.
- Current Assignee: Ibiden Co., Ltd.
- Current Assignee Address: JP Ogaki-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2002-028644 20020205; JP2003-004119 20030110; JP2003-012634 20030121
- Main IPC: B01D39/14
- IPC: B01D39/14 ; B01D46/00

Abstract:
An object of the present invention is to provide a honeycomb filter for purifying exhaust gases which makes it possible to alleviate a thermal stress generated due to occurrence of a local temperature change and which is less likely to generate cracks and superior in strength and durability, an adhesive that has a low thermal capacity and is capable of alleviating the thermal stress, a coating material that has a low thermal capacity with a superior heat insulating property and is capable of alleviating the thermal stress, and a manufacturing method of the honeycomb filter for purifying exhaust gases that can improve precision in the outside dimension, and reduce damages in the manufacturing processes.The present invention relates to a honeycomb filter for purifying exhaust gases, having a structure in that a plurality of column-shaped porous ceramic members, each having a number of through holes that are placed side by side in the length direction with partition wall interposed therebetween, are combined with one another through adhesive layers so that the partition wall that separate the through holes are allowed to function as a filter for collecting particulates, and in this structure, the thermal expansion coefficient αL of the adhesive layer and the thermal expansion coefficient αF of the porous ceramic member are designed to have the following relationship: 0.01
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