Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By gas forming or expanding
Reexamination Certificate
2011-03-29
2011-03-29
Lorengo, Jerry (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By gas forming or expanding
C264S051000, C264S628000, C501S080000, C501S084000
Reexamination Certificate
active
07914718
ABSTRACT:
Porous ceramic articles may be produced by using a gas as a pore former, where the gas is injected into a ceramic precursor batch material and mixed. Pressure is then applied to mixture such that the gas liquefies. The pressure is maintained during formation of a green body, maintaining the gas in a liquefied state. After formation of the green body, the pressure is removed whereby the gas returns to a gaseous state, creating pores in the green body. The green body may then be fired to produce a porous ceramic article.
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Brundage Kevin Robert
Bush Robert Leonard
Rose Roger A
Tang Yuxin
Corning Incorporated
Douglas Walter M.
Lorengo Jerry
Wiese Noah S
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