Provided is a polymersome composition that has skin disorder remedying effects, that is safe, that provides a pleasant feel upon use and a fresh feel without any stickiness, and that has excellent base-agent stability. The disclosed polymersome contains, as a membrane component, a block-type alkylene oxide derivative represented by the following formula (I): R1O-[(EO)l(AO)m(EO)n]-R2. (In the formula, AO represents an oxyalkylene group having 3 or 4 carbons; EO represents an oxyethylene group; m represents an average addition mole number of the oxyalkylene group and satisfies 1=m=70; and 1+n represents an average addition mole number of the oxyethylene group and satisfies 1=1+n=70. The percentage of the oxyethylene group to the sum of the oxyalkylene group having 3 or 4 carbons and the oxyethylene group is 20% to 80% by mass. The oxyalkylene group having 3 or 4 carbons and the oxyethylene group are added blockwise. R1 and R2 each represent a hydrocarbon group having 1 to 4 carbons, which may be the same or different from each other.)
本发明提供了一种聚合体组合物,该组合物具有治疗皮肤疾病的效果,安全可靠,使用时感觉舒适清爽,无任何粘腻感,并且具有极佳的基剂稳定性。所公开的聚合物组含有下式(I)代表的块状环氧亚烷基衍
生物作为膜成分:R1O-[(
EO)l(AO)m(
EO)n]-R2。(式中,AO 代表具有 3 或 4 个碳原子的氧亚烷基;
EO 代表氧
乙烯基;m 代表氧亚烷基的平均加成摩尔数,满足 1=m=70;1+n 代表氧
乙烯基的平均加成摩尔数,满足 1=1+n=70。氧
乙烯基团占具有 3 或 4 个碳原子的氧亚烃基团和氧
乙烯基团总和的质量百分比为 20% 至 80%。具有 3 或 4 个碳原子的氧亚烃基团和氧
乙烯基团按顺时针方向添加。R1 和 R2 分别代表具有 1 至 4 个碳原子的烃基,它们之间可以相同或不同)。