Patent ID: 9107979
Filing Date: 2015-08-18
Classification: A61K,A61L

Abstract:
1. A bioresorbable porous film, comprising: a blend mixture of polylactic acid and at least two kinds of polyethylene glycol; wherein the at least two kinds of polyethylene glycol comprise a first polyethylene glycol, which is in a solid form under ambient temperature and atmospheric pressure, and a second polyethylene glycol, which is in a liquid form under ambient temperature and atmospheric pressure; wherein the first polyethylene glycol has a molecular weight in a range of 6000-9000 Da (PEG(6000-9000)), and the second polyethylene glycol has a molecular weight in a range of 300-600 Da (PEG(300-600)); wherein the film is prepared by a blend mixture according to weight ratio of Formula (I), wherein x, y, and z represent the weight percentages of PLA, PEG(6000-9000), and PEG(300-600), respectively; and wherein the film has a porosity of 58.40%-90.80%.