Method of making open cell material
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United States of America Patent
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-
Dec 9, 2003
Grant Date -
Mar 6, 2003
app pub date -
Aug 27, 2001
filing date -
Aug 16, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The porous material of the present invention is produced by heating a dry powder mixture, containing mainly an organic solid binder and inorganic particles. The mixture is foamed while the organic binder is melted. Foaming comes from a foaming agent in the powder mixture. The solid foamed structure comprising inorganic particles embedded in an organic binder is then heated to eliminate the organic binder and finally to sinter the remaining inorganic tri-dimensional network into a rigid structure having interconnected porosity.
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