Honeycomb structure comprising a cement skin composition with crystalline inorganic fibrous material
Disclosed is a honeycomb support structure comprising a honeycomb body and an outer layer or skin formed of a cement that includes an inorganic filler material having a first coefficient of thermal expansion from 25 C to 600 C and a crystalline inorganic fibrous material having a second coefficient of thermal expansion from 25 C to 600 C. Skin cement composition controls level of cement liquid/colloid components, for example water, colloidal silica, and methylcellulose migration into the substrate during the skin application process to form barrier to skin wetting and staining during the washcoating process.
Corning Incorporated
B B C F B B B C C F B C C Y F B C C F B C C C C B C C C B
B01J B01J C04B F01N B01D B01J B01D C04B C04B F01N B01J C04B C04B Y10T F01N B01J C04B C04B F01N B01D C04B C04B C04B C04B B01J C04B C04B C04B B01J
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Thomas Richard Robert John Huthavahana Kuchibhotla Mark Alan Keith Norman Christopher Lane Kenneth Joseph Todd Parrish
Chapman Locker Sarma Lewis Bubb Kerr Drury St Clair