公开(公告)号：DE102005029627A1

公开(公告)日：2007-01-04

申请号：DE102005029627

申请日：2005-06-23

Applicant: BASF AG

Inventor： PETROVIC SUSANNE ,  SEITZ ANDREAS ,  DANISCH PETER ,  BETHGE HARTMUT ,  JANSON WERNER ,  BELL HUBERTUS PETER

IPC: C08L31/06 ,  C08L83/04 ,  C09D5/02 ,  C14C3/22 ,  C14C9/00

Abstract: A process for the production of leather, wherein tanned animal hides are treated in step (A) with an aqueous liquor which comprises (a) at least one copolymer obtainable by copolymerization of (a1) at least one ethylenically unsaturated C4-C8-dicarboxylic acid or at least one derivative of an ethylenically unsaturated C4-C8-dicarboxylic acid and (a2) at least one C8-C100-α-olefin and, if appropriate, hydrolysis and/or at least partial neutralization, (b) at least one paraffin which is liquid at room temperature, (c) at least one synthetic nonionic emulsifier, the aqueous liquor being free of silicones, and furthermore silicone-free aqueous formulations and their use.