MULTI-PHASE EMULSIONS BASED ON AMPHIPHILIC BLOCK COPOLYMERS
    18.
    发明申请
    MULTI-PHASE EMULSIONS BASED ON AMPHIPHILIC BLOCK COPOLYMERS 审中-公开
    基于大分子嵌段共聚物的多相乳液

    公开(公告)号:US20110052633A1

    公开(公告)日:2011-03-03

    申请号:US12553086

    申请日:2009-09-02

    IPC分类号: A61K39/145 A61K8/86

    摘要: An composition comprises (a) a continuous aqueous phase; (b) an oily phase; and (c) an amphiphilic emulsifying system comprising a block copolymer having the formula (A)p-(B)q-(C)r, in which (B)q is a hydrophilic block and (C)r is a hydrophobic block; wherein p, q and r are integers with the proviso that: if p is 0, then A is other than hydroxyl or reactive functional groups and the block copolymer is a diblock copolymer; B and C are each individual repeating) units; if p is >1, then the block copolymer is a triblock copolymer, in which (A)p is a hydrophobic block; the hydrophobic blocks (A)p and (C)r are each homopolymers or heteropolymers; the repeating units A and C are the same or different; and wherein the ratio q/(p+r) is sufficient high so that the hydrophilic-lipophilic balance value of the block copolymer is >10.

    摘要翻译: 组合物包含(a)连续水相; (b)油相; 和(c)包含具有式(A)对 - (B)q-(C)r的嵌段共聚物的两亲乳化体系,其中(B)q是亲水性嵌段,(C)r是疏水性嵌段; 其中p,q和r是整数,条件是:如果p是0,则A不是羟基或反应性官能团,并且嵌段共聚物是二嵌段共聚物; B和C各自单独重复)单位; 如果p> 1,则嵌段共聚物是三嵌段共聚物,其中(A)p是疏水嵌段; 疏水嵌段(A)p和(C)r均为均聚物或杂聚物; 重复单元A和C相同或不同; 并且其中q /(p + r)的比例足够高,使得嵌段共聚物的亲水 - 亲油平衡值> 10。