Composition for external application

Details Composition for external application Composition for external application

2004-10-19

2009-06-23

Yu, Gina C. (Department: 1611)

Drug, bio-affecting and body treating compositions

Live hair or scalp treating compositions

Polymer containing

C424S070100, C424S047000, C424S401000, C514S438000

Reexamination Certificate

active

07550135

ABSTRACT:
The present invention relates to a composition for external application, a humectant and a skin barrier function reinforcing agent, each containing a diamide derivative represented by the following formula (1):(wherein, R1aand R1bare the same or different and each represents a C1-23hydrocarbon group, R2aand R2bare the same or different and each represents a divalent C1-6hydrocarbon group, R3s are the same or different and each represents a divalent C2-6hydrocarbon group and n stands for 1 to 100).The composition for external application, humectant and skin barrier function reinforcing agent basically improve the water retaining ability and barrier functions of the horny layer, are excellent in miscibility and mixing stability and can be prepared efficiently at a low cost.

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