Patent ID: 7192534

Claim:
A fatliquoring agent for the production and/or treatment of leather and hides comprising A) at least one modified natural oil and B) at least one stabilizer L n R in which L— is R a is H or methyl; R b is methyl, ethyl or tert-butyl, R c is methyl, tert-butyl, cyclohexyl or methylcyclohexyl, R is an n-valent, saturated or unsaturated, linear aliphatic C 3 - to C 30 - or branched aliphatic C 4 - to C 30 - or (hetero)cycloaliphatic C 4 - to C 30 - or (hetero)aromatic C 4 - to C 30 - hydrocarbon radical which is unsubstituted or substituted by carbonyl, alkylcarbonyloxy, alkylcarbamoyl and/or alkoxycarbonyl groups and/or contains O, N(H) and/or S units, and n is an integer from 1 to 10, the stabilizer L n R having altogether at least 20 carbon atoms and where n is 2, —R— also being —S—, —O—, —N(H)—, —CH 2 —, —(CH 2 ) 2 —, —CH(CH 3 )—, —(CH 2 ) 3 —, —CH(C 2 H 5 )— or —C(CH 3 ) 2 —.