Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Reexamination Certificate
2006-01-24
2008-12-02
Fortuna, Ana M (Department: 1797)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
C419S005000, C419S058000, C210S500250, C210S500230, C210S323200, C055S523000, C428S052000
Reexamination Certificate
active
07459108
ABSTRACT:
The present invention relates to a method for preparing a metallic membrane, more particularly to a method for preparing metallic membranes, which comprises dissolving a transition metal of Period 3 and its alloy particle powder and synthetic polymer in a fixed ratio; radiating or casting to prepare a membrane precursor; oxidizing the synthetic polymer on the membrane precursor under a mixed gaseous atmosphere of nitrogen and hydrogen; and sintering the membrane precursor at a predetermined temperature. The metallic membrane prepared by the process of the present invention has excellent mechanical and chemical properties and enables to maintain a relatively small pore size and high porocity than traditional membranes. Therefore, it is useful for water treatment.
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Choi In-Hwan
Kim In-Chul
Lee Kew-Ho
Lee Soo-Min
Fortuna Ana M
Frommer Lawrence & Haug; LLP
Korea Research Institute of Chemical Technology
Samwon Engineering Co., Ltd.
Santucci Ronald R.
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