Gas separation – Specific media material – Ceramic or sintered
Reexamination Certificate
2011-07-19
2011-07-19
Griffin, Walter D (Department: 1774)
Gas separation
Specific media material
Ceramic or sintered
C055S522000, C055S524000, C060S297000, C502S303000, C422S169000, C422S170000, C422S171000, C422S172000, C422S177000, C422S178000, C422S179000, C422S180000, C422S181000, C422S182000
Reexamination Certificate
active
07981188
ABSTRACT:
A porous ceramic honeycomb filter manufactured from an oxide-based ceramic material having a pore size distribution with d1≧7.0 microns. Preferably, the oxide-based material is cordierite or aluminum titanate. Alternatively, the filter contains a cordierite-containing ceramic body with a narrow pore size distribution with db≦1.00, wherein db=(d90−d10)/d50. Also disclosed is a batch mixture, method and honeycomb green body made from mixture of inorganic source materials selected from the group of magnesia sources, alumina sources, and silica sources, and a pore former having a narrow particle size distribution with dps≦0.90, wherein dps={(dp90−dp10)/dp50}. The pore former is preferably selected from a group consisting of canna starch, sago palm starch, green mung bean starch, and single-mode potato starch.
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Miao Weiguo
Shustack Paul John
Skolny Jennifer Lynn
Wang Jianguo
Xie Yuming
Corning Incorporated
Griffin Walter D
Mason Matthew J.
McNutt Matthew B.
Orlando Amber
LandOfFree
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