Production method of resin porous material
AssigneePrime Planet Energy & Solutions, Inc.
InventorKohei Matsunobu
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Abstract
Provided is a method that can produce a resin porous material from a water-insoluble polymer in a small number of steps while suppressing the formation of skin layers. The production method of a resin porous material disclosed herein includes preparing a solution of a water-insoluble polymer in a mixed solvent including a good solvent of the water-insoluble polymer and a poor solvent of the water-insoluble polymer, and drying the solution to remove the mixed solvent. The poor solvent has a higher boiling point than the good solvent. The drying the solution is performed using superheated water vapor.
Claims3
A production method of a resin porous material, the method comprising:
- preparing a solution of a water-insoluble polymer in a mixed solvent including a good solvent of the water-insoluble polymer and a poor solvent of the water-insoluble polymer and
- drying the solution to remove the mixed solvent, wherein
- the poor solvent has a higher boiling point than the good solvent,
- the drying the solution is performed using superheated water vapor, wherein the superheated water vapor has a temperature above 100° C., and
- the water-insoluble polymer is an ethylene-vinyl alcohol copolymer.
Dependencies are inferred from the claim text.