Skin-conditioning succinic acid derivatives

摘要

PCT No. PCT/EP93/03044 Sec. 371 Date May 11, 1995 Sec. 102(e) Date May 11, 1995 PCT Filed Nov. 2, 1993 PCT Pub. No. WO94/11333 PCT Pub. Date May 26, 1994A skin-moisture-regulating composition for cosmetic or dermatological preparations, the composition containing succinic acid derivatives corresponding to formula I:R1O(CnH2nO)xCO-CHR2-CHR3-CO(OCnH2nO)yOR4(I)wherein R1 is an alkyl, alkenyl, mono-or dihydroxyalkyl or hydroxyalkenyl group containing 6 to 22 carbon atoms, one of R2 and R3 is hydrogen and the other is an alkyl or alkenyl group containing 12 to 22 carbon atoms, n=2 or 3, x and y are average degrees of alkoxylation and have values of 0 to 20 and 1 to 20, respectively, and R4 is hydrogen or a group R1O-(CnH2nO)x-CO-CHR2-CHR3-CO-, or an alkyl, alkenyl, mono- or dihydroxyalkyl or hydroxyalkenyl group containing 6 to 22 carbon atoms.