Patent ID: 9227880
Filing Date: 2016-01-05
CPC Classification: C04B

Claim Text:
1. A batch composition for manufacturing a porous cordierite ceramic article comprising: a quantity including substantially nonfibrous inorganic components sufficient to yield an article including cordierite (Mg a quantity of non-crosslinked pore former configured to facilitate porosity development in a cordierite ceramic article, the quantity of pore former comprising a superaddition of about 20% or less of a dry weight of the quantity of inorganic components, wherein upon firing, the cordierite ceramic article includes a porosity of at least 50%, wherein the quantity of substantially nonfibrous inorganic components comprises relatively coarse silica and relatively fine silica; wherein the relatively coarse silica comprises silica having 95% of particles with sizes less than about 75 μm and with a median particle size of about 35 μm or less; and wherein the relatively fine silica comprises silica having 95% of particles with sizes less than about 40 μm and with a median particle size of about 15 μm or less.