| abstract |
An aqueous dispersion of amphiphilic oligomers for oiling leather or skins wherein the dispersion contains anionically modified urethane fatty oligomers containing long-chain hydrocarbon fatty groups containing from 8 to 40 carbon atoms, together with salt-forming carboxylic acid groups, sulfonic acid groups and mixtures thereof, which form urethane fatty oligomers having an at least predominantly linear basic structure of the oligomer molecule. |