申请人:KAO CORPORATION
公开号:EP1803439A2
公开(公告)日:2007-07-04
The present invention relates to a composition for external application, containing a diamide derivative represented by the following formula (1) :
(wherein R1a and R1b are the same or different and each represents a C1-23 hydrocarbon group, R2a and R2b are the same or different and each represents a divalent C1-6 hydrocarbon group, R3s are the same or different and each represents a divalent C2-6 hydrocarbon group and n stands for 1 to 100).
The composition for external application basically improves the water retaining ability and barrier functions of the horny layer, is excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.
本发明涉及一种外用组合物,其中含有由下式(1)表示的二酰胺衍生物:
(其中 R1a 和 R1b 相同或不同,各自代表一个 C1-23 烃基;R2a 和 R2b 相同或不同,各自代表一个二价 C1-6 烃基;R3s 相同或不同,各自代表一个二价 C2-6 烃基;n 代表 1 至 100)。
外用组合物基本上提高了角质层的保水能力和阻隔功能,具有优异的混溶性和混合稳定性,并能以低成本高效制备。