基本信息:
- 专利标题： LOW BACK PRESSURE POROUS HONEYCOMB AND METHOD FOR PRODUCING THE SAME
- 专利标题（中）：多孔WABE低压JAM及其制造方法
- 申请号：EP09755273.1 申请日：2009-05-29
- 公开(公告)号：EP2315733A1 公开(公告)日：2011-05-04
- 发明人： BEALL, Douglas, Munroe , HEIBEL, Achim, Karl-Erich , TANDON, Pushkar , THOMPSON, David, John
- 申请人： Corning Incorporated
- 申请人地址： 1 Riverfront Plaza Corning, NY 14831 US
- 专利权人： Corning Incorporated
- 当前专利权人： Corning Incorporated
- 当前专利权人地址： 1 Riverfront Plaza Corning, NY 14831 US
- 代理机构： Anderson, James Edward George
- 优先权： US57295P 20080530
- 国际公布： WO2009145910 20091203
- 主分类号： C04B35/195
- IPC分类号： C04B35/195 ; C04B38/00 ; C04B38/06 ; F01N3/022 ; B01D46/24
摘要：
Disclosed are ceramic honeycomb articles which possess a unique microstructure characterized by porosity between 40% and 70%, and the presence of coarse pores exhibiting a depth equivalent to the thickness of the cell wall and a dimensional width, in the plane of the cell wall, exhibiting a diameter that is at least as large as the thickness of the cell wall. The articles exhibits reduced filtration efficiency coupled with low pressure drop across the filter, and a reduced regeneration need. Such ceramic articles are particularly well suited for filtration applications, such as off-road and retro-fit diesel exhaust filters or DPFs. Also disclosed is a method for manufacturing the ceramic article wherein the pore former is capable of forming coarse pores.