Water-soluble or water-dispersible polyurethanes as polyurethanes auxiliary in cosmetic and pharmaceutical preparations and polyols containing polylactic acid copolymerized.

摘要

POLIURETANOS soluble or dispersible compounds WATER A) at least one compound containing at least TWO OR MORE active hydrogen atoms per molecule, B) at least one diol containing acid or salt group, c) at least one diisocyanate, WITH acid numbers 12 TO 150 or salts of these polyurethanes, which comprises within its structure POLYMER as compounds of group A) AT LEAST 5% molar polycondensate lactic acid and a polyol of general formula wherein Y is the residue of an alcohol BI- A QUADRIVALENT, n is 1-50, m is 1 to 4, process for their preparation and their use.