Patent ID: 11920118
Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. The method according to claim 1, wherein the biodegradable elastomeric polymer is poly(L-lactide-co-caprolactone), poly(L-lactide-co-glycolide) or a mixture thereof, the water-soluble moisture absorbent is LiCl, the organic solvent is tetrahydrofuran, the biodegradable elastomeric polymer is mixed with the water-soluble moisture absorbent in a weight ratio of 1:0.1-0.3 in the organic solvent to prepare the mixture solution, the relative humidity is adjusted to 74 to 76% with a supersaturated salt solution, the spin coating is performed at a speed of 2800 to 3400 rpm for 20 seconds to 40 seconds, and the porous polymer membrane has a thickness of 700 nm to 960 nm, a pore size of 900 nm to 1.2 μm, and a porosity of 35 to 45%.