| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing process of porous beads which does not necessitate the irradiation of energy radiations and improves manufacturing efficiency. SOLUTION: The polymer solution storage 2 contains at least two kinds of polymers having a number-average molecular weight of≥10,000 and different coagulation values and dissolved in a solvent compatible with both of the polymers. The coagulation liquid tank 4 contains a coagulation liquid containing a non-solvent. The polymer solution is dripped from the polymer solution storage 2 into the coagulation liquid tank 4 through the nozzle 3. The polymer solution coagulates in the form of a drop in the coagulation liquid to produce the porous beads. COPYRIGHT: (C)2007,JPO&INPIT
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