Method for preparing microparticles having a selected polymer molecular weight
    1.
    发明申请
    Method for preparing microparticles having a selected polymer molecular weight 审中-公开
    具有选择的聚合物分子量的微粒的制备方法

    公开(公告)号:US20080058502A1

    公开(公告)日:2008-03-06

    申请号:US11826693

    申请日:2007-07-17

    IPC分类号: C08F6/06

    摘要: A method for preparing microparticles having a selected polymer molecular weight. The hold time and temperature of a solution containing a nucleophilic compound and a polymer having a starting molecular weight are controlled in order to control the molecular weight of the polymer in the finished microparticle product. In this manner, a selected polymer molecular weight in the finished microparticle product can be achieved from a variety of starting material molecular weights.

    摘要翻译: 一种制备具有选定的聚合物分子量的微粒的方法。 控制包含亲核化合物和具有起始分子量的聚合物的溶液的保持时间和温度以控制成品微粒产物中的聚合物的分子量。 以这种方式,可以从各种原料分子量获得成品微粒产物中所选择的聚合物分子量。

    Preparation of injectable suspensions having improved injectability
    2.
    发明申请
    Preparation of injectable suspensions having improved injectability 有权
    具有改进的注射性的可注射悬浮液的制备

    公开(公告)号:US20080044485A1

    公开(公告)日:2008-02-21

    申请号:US11826994

    申请日:2007-07-19

    IPC分类号: A61K9/14 A61K47/30

    摘要: Injectable compositions having improved injectability. The injectable compositions include microparticles suspended in an aqueous injection vehicle having a viscosity of at least 20 cp at 20° C. The increased viscosity of the injection vehicle that constitutes the fluid phase of the suspension significantly reduces in vivo injectability failures. The injectable compositions can be made by mixing dry microparticles with an aqueous injection vehicle to form a suspension, and then mixing the suspension with a viscosity enhancing agent to increase the viscosity of the fluid phase of the suspension to the desired level for improved injectability.

    摘要翻译: 具有改进的注射性的可注射组合物。 可注射组合物包括悬浮在20摄氏度粘度至少为20cp的含水注射用载体中的微粒。构成悬浮液相的注射载体的增加的粘度显着降低体内注射性失败。 可注射组合物可以通过将干燥微粒与水性注射载体混合以形成悬浮液,然后将悬浮液与粘度增强剂混合以将悬浮液的流体相的粘度增加至所需水平以改善注射性,从而制备。