Patent ID: 7964262
Filing Date: 2011-06-21
Classification: B01D,C04B,Y10T

Abstract:
1. A cordierite honeycomb body comprising: a wt % (M a MOR/CFA ratio (psi) of at least about 3,500-40(%porosity); a porosity of at least 45%; a TSP of at least 500° C.; and wherein the porosity has a pore size distribution characterized by a value of (d where “wt % (M 2 O+CaO)” is the quantity (wt % Li 2 O+wt % Na 2 O+wt % K 2 O+wt % CaO+wt % Rb 2 O+wt % Cs 2 O), TSP is the thermal shock parameter defined as (MOR/E) 25°C. (CTE 500-900°C. ) −1 , MOR is the four-point modulus of rupture, E is the elastic modulus, CTE is the coefficient of thermal expansion, CFA is the closed frontal area, and the terms d 10 and d 50 denote the pore diameters, in micrometers, at which about 10% and about 50%, respectively, of the total pore volume are of a finer pore diameter.