| 摘要 |
Agents for the fatliquoring of, in particular, leathers and hides tanned in the absence of chromium comprise A) at least one modified natural oil and B) at least one stabilizer L<SUB>n</SUB>R where R<SUP>a </SUP>is H or methyl, R<SUP>b </SUP>is methyl, ethyl or tert-butyl, R<SUP>c </SUP>is methyl, tert-butyl, cyclohexyl or methylcyclohexyl, R is an n-valent C<SUB>3</SUB>- to C<SUB>30</SUB>-hydrocarbon radical which is unsubstituted or substituted and/or contains hetero atoms and n is an integer from 1 to 10, the stabilizer L<SUB>n</SUB>R having altogether at least 20, in particular altogether at least 28, carbon atoms, and, where n is 2, -R- also being -S-, -O-, -N(H)-, -CH<SUB>2</SUB>-, -(CH<SUB>2</SUB>)<SUB>2</SUB>-, -CH(CH<SUB>3</SUB>)-, -CH<SUB>2</SUB>)<SUB>3</SUB>-, -CH(C<SUB>2</SUB>H<SUB>5</SUB>)- or -C(CH<SUB>3</SUB>)<SUB>2</SUB>-. The novel fatliquoring agents are used in leather production and/or leather treatment, and leather is produced and/or treated using aqueous dispersions of these fatliquoring agents.
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