Fat liquefaction of agents with low VOC content, its use in the production and / or treatment of hides and Skins and the production and / or treatment of hides and Skins using these agents of Fat Liquefaction

摘要

Agents for liquefaction of Fat, in particular, of hides and Skins are tanned in the absence of Chromium.(a) at least one Natural Oil modified and (b) at least one Stabilizer NRL where l is of the formula (1) where r is H or Methyl, RB or Tert Butyl methyl, Ethyl, RC is Methyl ter butyl, Cyclohexyl or metilciclohexilo, R is a Hydrocarbon radical C3 to C30 N - that's insustituido or Valente Structures and / or containing heteroatoms and N is an integer from 1 to 10,Taking the Stabilizer NRL in total at least 20, in particular, in total at least 28 carbon Atoms and where n is 2, - R - S -, - O -, - N (H) -, - CH2 -, - (CH2) 2 - ch (CH3) - (CH2) 3, - - - - - ch (C2H5) or C (CH3) 2 -.New agents of liquefaction of Fat used in the production of Leather and / or treatment of Leather, and the leather is produced and / or treated using aqueous Dispersions of These agents of liquefaction of Fat.