Abstract: The leather is treated with a resin, quaternary ammonium compound, amine or polymer before the impregnation with the fluoro chemicals. With these auxiliaries, a uniform effectiveness of the fluoro chemicals which act on the surface is achieved, regardless of the procedure or the chemicals previously introduced into the leather. These auxiliaries can optionally also be applied to the leather together with the fluoro chemicals.

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.

Abstract: Conditioning and water-repellent compositions containing agents for cellulose-containing textiles or leather comprising sulphonylureas of the formula ##STR1## wherein R is alkyl or alkenyl having 10-30 carbon atoms; B is a member selected from the group comprising ##STR2## wherein R.sup.1 is alkyl having 1-4 carbon atoms, R.sup.2 is hydrogen or alkyl having 1-4 carbon atoms and n is 2, 3 or 4;And X is .beta.-halogenoalkyl or alkenyl with 2 to 4 carbon atoms each. Also disclosed are novel sulphonylureas per se and a method of use for sulphonylureas as conditioning and water repellent compositions.