| 摘要 |
A nonionic surfactant useful in a cosmetic composition has the formula <IMAGE> (IV) wherein R is an aliphatic, cycloaliphatic or alkylaryl radical containing 8-30 carbon atoms; Y is a trivalent radical selected <IMAGE> <IMAGE> wherein m ranges from 1 to 20; X is -O-, -S- or -S=O; p, q and v represent 0 or 1 with the proviso that the sum p+q=0 or 1; and with the further provisos that when Y is <IMAGE> R is a saturated linear aliphatic radical and when Y is <IMAGE> and p=1, v is 0; A represents +548 C2H3O(CH2OCH2-CHOH-CH2OH)+547 aH and B represents +548 C2H3O(CH2OCH2CHOH-CH2OH)+547 bH wherein a+b=n and n ranges from 1.5 to 8.
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