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    1.
    发明专利
    未知

    公开(公告)号：AT250892B

    公开(公告)日：1966-12-12

    申请号：AT246364

    申请日：1964-03-20

    Applicant: BASF AG

    Inventor： EBEL FRIEDRICH DR ,  GULBINS KLAUS DR ,  HAHN ERWIN DR ,  LANGE GUENTER DR ,  SCHUBERT RUDOLF DR ,  WILHELM HANS DR ,  WOLF HANS DR ,  WUERTELE LOTHAR DR

    IPC: D06P3/32

    Abstract: Leather is simultaneously dyed and finished using a coloured polymer in which the dye is bound to the polymer by a covalent bond. The polymer may be obtained by copolymerizing a dye bearing at least one polymerizable olefinically unsaturated group with one or more polymerizable monomers (many listed) or the polymer may be one on to which a copolymerizable dye has been grafted or the polymer may be attached to the dye by way of reactive groups both on the polymer and the dye. The polymers may be in solution or dispersion, preferably aqueous dispersion. The coloured polymers may contain reactive groups, e.g. by using N-methylolacryl- or methacrylamide as a comonomer, through which cross-linking may be effected. The coloured polymers may be applied by brushing, dipping or spraying or in a drum. The so-treated leather may afterwards be glazed or plated. Examples are given. Specifications 877,402, 914,282, 946,472, 964,757 and 965,627 are referred to.

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