Title:
セラミック物品用の網状の孔隙形成剤
Document Type and Number:
Japanese Patent JP2009544570
Kind Code:
A
Abstract:
The present invention relates to reticulated pore formers and ceramic articles including reticulated pore structures. The pore former of the present invention provides open pores having an interconnected generally three-dimensional structure and are useful in the manufacture of porous ceramic articles, such as honeycomb diesel particulate filters and catalyzed filters. The reticulated pore formers of the present invention provide controlled pore size and reticulated channel morphology in the finished ceramic articles. The pore size and the length of the pore channel may be controlled by using the desired foam structure and size. The pore formers may be mixed into a ceramic batch and extruded through a forming die resulting in a ceramic article that has semi-continuous reticulated channels throughout the entire body after firing to remove the pore former. The pore formers of the present invention are flexible and highly elastic, which inhibits rupture of the particle during the extrusion process. The use of reticulated pore formers enables the manufacture of highly permeable ceramic filters with controlled pore size distribution.
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Inventors:
De Rosa, Michael Yee
Wight, John F. Jr.
Wight, John F. Jr.
Application Number:
JP2009522773A
Publication Date:
December 17, 2009
Filing Date:
July 18, 2007
Export Citation:
Assignee:
CORNING INCORPORATED
International Classes:
C04B38/06; B01D39/20; B01J35/04; C04B38/00
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma
Go Sakuma