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PROCESS FOR PRODUCTION OF POROUS BODY AND USES THEREOF

  • US 20090319016A1
  • Filed: 03/24/2008
  • Published: 12/24/2009
  • Est. Priority Date: 03/30/2007
  • Status: Active Grant
First Claim
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1. A process for producing a porous body with different physical properties in desired regions,wherein the process comprises the following processes (A) to (D):

  • (A) providing at least two raw materials having different compositions, each of which contains a polymer and a solvent,(B) freezing the respective raw materials into desired shapes to form frozen bodies of the respective raw materials,(C) forming an assembly of the frozen bodies, where at least one of the following processes (C1) and (C2) is included,(C1) forming the assembly of the frozen bodies and then exposing the assembly to a condition under which the frozen bodies begin to melt, and(C2) exposing the respective frozen bodies to a condition under which the frozen bodies begin to melt and then forming the assembly of the frozen bodies, and(D) freeze-drying the assembly after the process (C) to form a porous body.

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