ALKYLENE OXIDE DERIVATIVE AND SKIN EXTERNAL PREPARATION CONTAINING THE SAME

摘要

Novel compounds as a component that has rough skin remedying effects, ensuring safety, application feeling especially free of sensation of stickiness and favorable freshness and that is capable of enhancing a base agent stability. There are disclosed alkylene oxide derivatives characterized by being represented by the general formula: Z-{O-[(AO)a-(EO)b]-R}2 (I) (in the formula, Z is a residue of dimer diol devoid of hydroxyls; EO is an oxyethylene group; AO is a C3-C4 oxyalkylene group; the mode of addition of these groups is a block; a and b are the average addition molar quantities of the oxyalkylene group and oxyethylene group, respectively; 1=2xa=150 and 1=2xb=150; the ratio of oxyethylene group to the sum of C3-C4 oxyalkylene group and oxyethylene group is in the range of 10 to 99 mass%; and each of Rs independently is a C1-C4 hydrocarbon group.)