METHOD FOR REMOVING HORN SUBSTANCES FROM ANIMAL SKIN

    公开(公告)号:AU2003273997A1

    公开(公告)日:2004-05-13

    申请号:AU2003273997

    申请日:2003-10-14

    Applicant: BASF AG

    Abstract: Horny substances are removed from animal hides by a process wherein animal hides are treated in a liquor comprising from 0.05 to 5% by weight, based on the salted weight, of one or more compounds of the formula I or the corresponding alkali metal or alkaline earth metal or ammonium or phosphonium salts thereof, the variables being defined as follows: R 1 is selected from hydrogen and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more S-H or O-H groups; X 1 to X 4 are identical or different and are selected from hydrogen, C 1 -C 4 -alkyl, O-H, S-H and N-HR 2 , R 2 is hydrogen or C 1 -C 12 -alkyl or a C 1 -C 4 -alkyl-C-O group, at least one of the radicals X 1 to X 4 being S-H, and, if R 1 contains neither O-H nor S-H, at least one further radical from among X 1 to X 4 is selected from S-H, OH and NH-R 2 , and furthermore with at least one compound which catalyzes the hydrolysis of peptide bonds.

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