| 摘要 |
PCT No. PCT/EP95/01720 Sec. 371 Date Nov. 13, 1996 Sec. 102(e) Date Nov. 13, 1996 PCT Filed May 6, 1995 PCT Pub. No. WO95/31576 PCT Pub. Date Nov. 23, 1995Water-soluble or water-dispersible graft polymers which are obtainable by free-radical-initiated polymerization of (A) a monomer or monomer mixture comprising (a) from 20 to 100% by weight of acrylic acid or methacrylic acid or a mixture thereof or alkali metal, alkaline earth metal or ammonium salts thereof, (b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which can be copolymerized with the monomers (a), and (c) from 0 to 5% by weight of monomers containing at least 2 ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of proteins (B) in an A:B weight ratio of from (95 to 10):(5 to 90), are used as tanning agents for self-tanning, pretanning and assist tanning of pelts and skin pelts and for the retanning of leather and skin.
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