×

Process for Producing Porous Object and Porous Object Obtained By the Same

  • US 20070282024A1
  • Filed: 03/10/2006
  • Published: 12/06/2007
  • Est. Priority Date: 03/10/2006
  • Status: Abandoned Application
First Claim
Patent Images

1. A process for producing a porous object, the process comprising:

  • preparing a mixed solution containing;

    a polymer containing a copolymer of lactide and caprolactone;

    a solvent in which the polymer has a relatively low solubility; and

    a solvent in which the polymer has a relatively high solubility and that is compatible with the solvent in which the polymer has a relatively low solubility, freeze-treating the mixed solution; and

    drying the mixed solution that has been freeze-treated, under reduced pressure, wherein a pore size of the porous object to be produced is controlled by varying the content of the solvent in which the polymer has a relatively low solubility in the mixed solution in the process of preparing the mixed solution, and cooling the mixed solution at a rate of 300°

    C./hr or lower in the process of freeze-treating.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×