Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Autogenously or by activation of dry coated particles
Patent
1995-12-28
1997-07-29
Reifsnyder, David A.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Autogenously or by activation of dry coated particles
264299, 2105101, 21050027, 21050028, B29C 4302
Patent
active
056519311
ABSTRACT:
A method for making a biocompatible filter whereby a biocompatible powder is sintered to form a disk-shaped filter. The biocompatible powder is first sized to obtain a preselected average particle size. Next, the powder is introduced to a die in which the powder is pressed to a predetermined force to form "cakes." The pressed powder "cakes" are then placed into an oven or furnace, which is heated to a preselected temperature. The powder cakes are held at the elevated temperature to sinter the particles in the powder together. After a preselected amount of time, the now-sintered powder cakes are removed and allowed to cool. This method produces biocompatible filters useful in liquid chromatography and other applications.
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Bailey Michael L.
German Randall M.
Raman Rajkumar
Reifsnyder David A.
Upchurch Scientific, Inc.
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