Bioresorbable porous film
First Claim
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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),
x/y/z
x+y+z=100%, x=30-70%, y+z=70-30%,
(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%.
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Abstract
A bioresorbable porous film, including a blend mixture of polylactic acid and at least two kinds of polyethylene glycol, wherein the at least two kinds of polyethylene glycol include 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 is provided. The film has a porosity of 10%-90%.
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Citations
11 Claims
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1. A bioresorbable porous film, comprising:
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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),
x/y/z
x+y+z=100%, x=30-70%, y+z=70-30%,
(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%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification