公开(公告)号：DE19752436A1

公开(公告)日：1999-05-27

申请号：DE19752436

申请日：1997-11-26

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  KIRCHNER WERNER DR ,  MALTRY WERNER ,  BONALDI LUIZ CARLOS ,  MARTINHO MINORU OI

IPC: C14C11/00

Abstract: Leather preparations are prepared from copolymer dispersions containing hydrolyzable silyl groups Leather preparations (I) having good substrate adhesion, good flow and heat resistance properties are prepared by treatment of the leather surface with a copolymer (II) as a binding agent and optionally pigments and conventional additives. 0.05-10 wt.% of (II) contains a hydrolyzable silyl group of formula (1) bonded to a C atom. R = 1-12C alkyl, aryl or alkaryl; R = methoxy, ethoxy, 2-methoxyethoxy, 2 ethoxyethoxy, 2-polyethoxyethoxy and/or acetoxy; and x = 0 or 1. The copolymer (II) may be formed in situ from a copolymer/silane mixture by reaction of a polymer analogue of a copolymer containing functional groups with a silane to introduce silyl groups of formula (1) into the copolymer.