| 摘要 |
PROBLEM TO BE SOLVED: To provide a semipermeable membrane having excellent water permeability and exhibiting low leakage of albumin. SOLUTION: This semipermeable membrane comprises a polysulfone-based resin and polyvinylpyrrolidone. The polysulfone-based resin is characterized in that a weight-average molecular weight of polyvinylpyrrolidone is of≥200,000 and≤900,000. COPYRIGHT: (C)2004,JPO
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