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    2.
    发明专利
    未知

    公开(公告)号：DE3865290D1

    公开(公告)日：1991-11-07

    申请号：DE3865290

    申请日：1988-10-18

    Applicant: BASF AG

    Inventor： LACH DIETRICH DR ,  ECKERT GUENTER DR ,  MALTRY WERNER ,  FISCHER KARL

    IPC: C14C11/00

    Abstract: A process for dressing leather by layerwise application to the leather of 2 to 6 coats of an aq. compsn. comprising (by wt., as solids) 2-15% of one or more polymeric binders, 2-10% casein, 2-15% of a crosslinking agent and a remainder to 100% water, to give a total amt. of 10-100g solids/m2 of the leather surface, drying at 20-80 deg.C and fixing the finish by a 1- to 3 times heat treatment at 150-220 deg.C with a total contact time of 0.1-5 sec.

    Leather preparations prepared from copolymer dispersions
    4.
    发明专利
    Leather preparations prepared from copolymer dispersions 未知

    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.

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