专利检索 ap:("Evonik Operations GmbH") AND inv:"Michael Damm" 第 1 页

1.

发明授权
Process for preparing nano-or microparticles comprising a carrier-polymer and one or more biologically active ingredients 有权

公开(公告)号：US11819576B2

公开(公告)日：2023-11-21

申请号：US17758554

申请日：2020-10-29

申请人： Evonik Operations GmbH

发明人： Michael Damm , Andrea Engel , Melanie Liefke

IPC分类号： A61K9/16 , A61K31/41 , A61K31/536 , A61K31/635 , A61K31/045 , A61K31/4184 , A61K31/496

CPC分类号： A61K9/1694 , A61K9/1635 , A61K31/045 , A61K31/41 , A61K31/4184 , A61K31/496 , A61K31/536 , A61K31/635

摘要： A process can be used for preparing nano- or microparticles containing a carrier-polymer and a biologically active ingredient. The process is a solvent emulsion process involving an organic phase (OP) and an aqueous phase (AP) to form an emulsion. In the case of an oil-in-water emulsion (O/W), the organic phase (OP) contains the biologically active ingredient dissolved or dispersed therein. Alternatively, in the case of a water-in-oil emulsion (W1/O), the aqueous phase (AP) contains the biologically active ingredient dissolved or dispersed therein. The organic phase (OP) is saturated with the salt-containing aqueous phase (AP) and vice versa.