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

Claim 0:
1. A method for fabricating a porous polymer membrane, comprising:
mixing a biodegradable elastomeric polymer with a water-soluble moisture absorbent in an organic solvent to prepare a mixture solution; and
applying the mixture solution to a substrate in a closed chamber, followed by spin coating at a relative humidity of 65 to 90%,
wherein the biodegradable elastomeric polymer is poly(L-lactide-co-caprolactone),
wherein a molar ratio of the L-lactide to the caprolactone in the poly(L-lactide-co-caprolactone) is 1-9:9-1,
wherein the poly(L-lactide-co-caprolactone) has
a number average molecular weight (Mn) of 50,000 to 500,000 g/mol, and
a weight average molecular weight (Mw) of 50,000 to 800,000 g/mol,

wherein a strain of the porous polymer membrane is 30 to 60% at a stretching temperature of 20 to 40° C.