Process for the preparation of aqueous emulsions, stable in storage, of N.alkyl-N-alkylol-ureas and their application for the softening of leather

Abstract

An agent for conditioning and imparting water repellency to leather comprises a homogeneous mixture of (a) 10 to 35% by weight of a compound of the formula ##STR1## wherein R is linear or branched alkyl or alkenyl each having 14 to 22 carbon atoms, m is a number average from 1.0 to 1.5 and n is 2 minus m; (b) 0 to 10% by weight of non-ionic emulsifiers; (c) 0 to 3% by weight of anionic emulsifiers with the proviso that the sum of (b) and (c) is 0.5 to 10%; (d) 0 to 5% by weight of an epoxide of the formula ##STR2## wherein R' is alkyl or alkenyl having 15 to 40 carbon atoms; (e) 0 to 25% by weight of fat liquors; and (f) 25 to 89.5% by weight of water or a water-miscible organic solvent.

Dependencies are inferred from the claim text.