Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials
Reexamination Certificate
2006-03-07
2006-03-07
Walls, Dionne A. (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Of inorganic materials
C264S624000, C264S628000, C264S050000, C501S080000
Reexamination Certificate
active
07008576
ABSTRACT:
Microporous ceramic materials used in structural materials, high-temperature filters, electrode materials or preform materials for infiltration by homogeneously mixing and molding a ceramic precursor powder polymer. The powder is saturated by introducing fluid to a pressure vessel. The fluid is super saturated by adjusting pressure in the vessel. Micropores are formed in the molded bodies by evolving the fluid from the molded bodies by heating and hardening the molded bodies. The hardened molded bodies are heated to pyrolysis. Pore characteristics (e.g., pore size and pore size distribution) suitable to target materials are controlled by adjusting pressure at a non-critical state without requiring additional processes or devices.
REFERENCES:
patent: 4136250 (1979-01-01), Mueller et al.
patent: 4248814 (1981-02-01), Yajima et al.
patent: 5283019 (1994-02-01), Atwell et al.
patent: 5563212 (1996-10-01), Dismukes et al.
patent: 5759460 (1998-06-01), Niihara et al.
patent: 5872070 (1999-02-01), Dismukes et al.
patent: 2002/0043734 (2002-04-01), Ohji et al.
Hearle, High Performance Fibers, Copyright 2001, Woodhead Publishing, p. 240, 244-245.
Kim Hai-Doo
Kim Young-Wook
Park Chul Bum
Herring Lisa L.
Korea Institute of Machinery and Materials
Lowe Hauptman & Berner LLP
Walls Dionne A.
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