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.:
Date of Patent:
Feb. 15, 2011
Filed:
Aug. 27, 2008
Yanxia LU, Painted Post, NY (US);
Jennifer Lynn Lyon, Corning, NY (US);
Jianguo Wang, Horseheads, NY (US);
John Forrest Wight, Jr., Corning, NY (US);
Yuming Xie, Sugar Land, TX (US);
Yanxia Lu, Painted Post, NY (US);
Jennifer Lynn Lyon, Corning, NY (US);
Jianguo Wang, Horseheads, NY (US);
John Forrest Wight, Jr., Corning, NY (US);
Yuming Xie, Sugar Land, TX (US);
Corning Incorporated, Corning, NY (US);
Abstract
Disclosed are ceramic honeycomb articles which are composed predominately of a crystalline phase cordierite composition. The porous cordierite ceramic honeycomb articles has a plurality of cell channels and intersecting porous walls and possess a microstructure characterized by a pore size distribution wherein greater than or equal to 75% of the pore size distribution of the porosity of the porous walls, by volume, have a pore diameter (d) wherein d<10.0 μm and less than or equal to 35% of the pore size distribution have d≦4.0 μm. Additionally, the pore diameter d≦14.0 μm, and CTE≦12.0×10/° C. from 25° C. to 800° C. The articles exhibits high filtration efficiency coupled with low pressure drop across the filter. Additionally, high porosity articles having porosity greater than or equal to 40% and low surface roughness of Ra<4.0 μm are described. Additionally, a method for manufacturing the ceramic honeycomb articles wherein fine talc, fine silica-forming source and a fine pore former are disclose.