Enzymatic depolymerization process of polylactic acid, and producing process of polylactic acid using depolymerization product
AssigneeKeio University
InventorShuichi Matsumura
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Abstract
A depolymerizing process of polylactic acid, wherein the polylactic acid is depolymerized in the presence of a hydrolase in an organic solvent or a supercritical fluid, thereby producing a re-polymerizable oligomer. A producing process of polylactic acid, wherein the re-polymerizable oligomer obtained by the above-mentioned depolymerization process is polymerized in the presence of a hydrolase or a polymerization catalyst.
Claims9
A depolymerizing process of polylactic acid, wherein the polylactic acid is depolymerized in the presence of a hydrolase that is a lipase in an organic solvent, thereby producing a re-polymerizable oligomer.
A depolymerizing process of polylactic acid, wherein the polylactic acid is depolymerized in the presence of a hydrolase in a supercritical fluid, thereby producing a re-polymerizable oligomer.
Dependencies are inferred from the claim text.