Sulfited fats

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C - Chemistry, Metallurgy

07

C

8/64, 260/465.8

C07C 301/00 (2006.01) C07B 45/02 (2006.01) C11C 3/00 (2006.01) C14C 9/02 (2006.01)

Patent

CA 1297887

ABSTRACT OF THE DISCLOSURE Sulfited fats prepared by oxidation of fats with oxygen-containing gas mixtures and simultaneous or subsequent sulfitation using alkali and/or ammonium hydrogen sulfites, wherein the fats used are mixtures containing A) fats having iodine numbers below about 100 and B) fatty acid esters having iodine numbers of from about 60 to about 100 and containing from 12 to 24 carbon atoms in the linear or branched, natural and/or synthetic fatty acid residue and from 1 to 5 carbon atoms in the monofunctional alcohol residue, the ratio by weight of A) to B) being from about 9:1 to about 1:4. The use of these sulfited fats as oiling agents is described as well as a method for the treatment of leather or skins using such agents.

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