Use of carboxyamide-polysiloxanes for water proofing leather

摘要

PCT No. PCT/EP97/06348 Sec. 371 Date Jul. 16, 1999 Sec. 102(e) Date Jul. 16, 1999 PCT Filed Nov. 13, 1997 PCT Pub. No. WO98/21369 PCT Pub. Date May 22, 1998Specific carboxyamide-polysiloxanes of the formula IV or the formula IVa having a carboxyl content of from 0.02 to 1.0 mmol/g and an average molar mass (number average) [Mn] in the range from 2x103 to 60x103 g/mol are used for hydrophobicizing materials of fibrous structure, especially leather or fur skins.