C - Chemistry – Metallurgy – 14 – C
Patent
C - Chemistry, Metallurgy
14
C
8/53
C14C 11/00 (2006.01) C08F 261/00 (2006.01) C08F 289/00 (2006.01) C14C 3/00 (2006.01) C14C 3/22 (2006.01)
Patent
CA 1167608
- 29 - ABSTRACT OF THE DISCLOSURE Polymers suitable for the treatment of pelts and/or leathers in the form of solution or aqueous dispersion are disclosed. The polymers are based on monomeric units of esters of acrylic and/or methacrylic acid containing nitrogen groups, esters of acrylic and/or methacrylic acid and acrylic and/or methacrylic acid. The solutions or aqueous dispersions are especially suitable for use in improving the grain condition of leather during retanning, in levelling dyeing, as ampholytes for neutralising chrome leather, in improving the uptake of fat in conjunction with mineral tannins for dressing furskins and in restoring leather. Particularly preferred polymers are those grafted onto protein hydrolysates, e.g. of collagen, keratin or elastin, or polysaccharides, especially when the monomer units are butyl acrylate, methyl methacrylate, dimethylaminoethylmethacrylate and acrylic acid in appropriate proportions. A method for treating pelts and/or leathers is also disclosed.
375257
Bossler Hanns
Monsheimer Rolf
Pfleiderer Ernst
Siol Werner
Trabitzsch Hans
Fetherstonhaugh & Co.
Rohm G.m.b.h.
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