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Sinterable structures and method

Invented by: James R. Johnson
Boca Raton, FL

Michael Edward Frencl
Monticello, MN

Originally Assigned to: Phillips Plastics Corporation
Prescott, WI
[Now assigned to . . .]

Issued:2009-01-27
Filed:2005-06-30
Application No:11170987
Examined by:Zemel; Irina S

A method of producing an open, porous structure having an outer surface defining a shape having a bulk volume and having interconnecting openings extending throughout said volume and opening through said surface, and products resulting from the method. The method comprises preparing a viscous mixture comprising a sinterable powder dispersed in a sol of a polymer in a primary solvent, replacing the primary solvent with a secondary liquid in which the polymer is insoluble to produce a gel comprising an open polymeric network having the sinterable powder arranged therein, removing the secondary liquid from the gel; removing the polymer network, and sintering the sinterable powder to form the open, porous structure. Also disclosed are shaped, porous products resulting from methods of the invention.

[pdf] U.S. Pat. No. 7,482,390

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