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    • 9. 发明公开
    • Method of preparing microspheres by using polymer having sol-gel transition property and microspheres prepared thereby
    • 一种用于通过具有溶胶 - 凝胶转变特性的聚合物的制备微球的过程
    • EP2781213A1
    • 2014-09-24
    • EP14160555.0
    • 2014-03-18
    • CJ Cheiljedang Corporation
    • Kim, Yi MiPark, Young JoonBaek, Seung HeeLim, Sun Kyung
    • A61K9/16A61K38/09
    • A61K9/1652A61K9/1641A61K9/1647A61K9/1694A61K38/09
    • The present invention relates to a method of preparing microspheres by using a polymer having a sol-gel transition property and microspheres prepared thereby, and more particularly, to a method of preparing microspheres by using a polymer having a sol-gel transition property and microspheres prepared thereby capable of preventing a solvent in a polymer solution for a carrier from being rapidly diffused to the aqueous medium before formation of the microspheres to reduce porosity of the microspheres and reduce surface roughness of the microspheres in order to obtain microspheres having a sphere shape, and increasing an encapsulation ratio of a bioactive substance, by using a polymer having a sol-gel transition property as a surfactant included in an aqueous medium into which a primary emulsion is injected and gelating a secondary emulsion formed after injecting the primary emulsion using the sol-gel transition property of the polymer used as the surfactant.
    • 本发明涉及一种通过使用具有溶胶 - 凝胶转变特性和微球从而制备,并且更具体地,涉及通过使用具有制备的溶胶 - 凝胶转变特性和微球体的聚合物制备的微球的方法的聚合物制备的微球的方法 从而能够从被迅速地扩散到wässrige介质形成微球体之前,以减少微球的孔隙率和降低为了得到具有球形形状的微球的微球的表面粗糙度在聚合物溶液中防止溶剂的载体,和 增加的生物活性物质的包封率,通过使用聚合物具有溶胶 - 凝胶转变特性如在wässrige介质包括在表面活性剂加入其中初级乳液注入并凝胶化使用溶胶注入初级乳液后形成的二级乳液 用作表面活性剂的聚合物的凝胶转变特性。