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    • 3. 发明授权
    • Process for making submicron particles
    • 制造亚微米颗粒的方法
    • US06299906B1
    • 2001-10-09
    • US09287409
    • 1999-04-06
    • Alexander BauschPirmin Hidber
    • Alexander BauschPirmin Hidber
    • A61K914
    • B01F3/1214A61K9/14A61K9/145A61K9/1688B01F3/1271B01F5/0287B01F2003/0064B01F2003/125B01F2215/0032B01J2/04B01J3/008B01J13/02Y02P20/544Y10S977/906
    • The present invention relates to a process for manufacturing a pulverous preparation of a submicron-sized biologically active compound comprising the steps of dissolving a biologically active compound under elevated pressure in a compressed gas, liquid or supercritical fluid containing a surface modifier; and rapidly expanding the compressed solution thereby precipitating the dissolved compound. An alternative process comprises dissolving the biologically active compound in compressed dimethylether, which may optionally contain a surface modifier; and spraying the compressed solution into an antisolvent phase, optionally containing a surface modifier, under vacuum, atmospheric pressure or elevated pressure. An optional third step involves converting the antisolvent phase into a pulverous preparation using conventional powder processing.
    • 本发明涉及一种制造亚微米尺寸生物活性化合物的粉末制剂的方法,包括以下步骤:将生物活性化合物在升高的压力下溶解在含有表面改性剂的压缩气体,液体或超临界流体中; 并迅速膨胀压缩溶液从而使溶解的化合物沉淀。 一种替代方法包括将生物活性化合物溶解在可任选地含有表面改性剂的压缩二甲醚中; 并在真空,大气压或升高的压力下将压缩的溶液喷雾到任选含有表面改性剂的抗溶剂相中。 可选的第三步涉及使用常规粉末处理将抗溶剂相转变成粉状制剂。