Alkoxy group containing copolymers and their use in retanning le

Details Alkoxy group containing copolymers and their use in retanning le Alkoxy group containing copolymers and their use in retanning le

1996-10-25

1999-02-23

Smith, Jeffrey

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 9419R, C14C 322

Patent

active

058739084

ABSTRACT:
The present invention relates to alkoxy-groups-containing copolymers of a) 1 to 99%-wt. water soluble ethylenically unsaturated, acid-groups-containing monomers, b) 1 to 50%-wt. monomers having a polyalkoxy sequence and c) 0 to 60%-wt. water soluble monomers which are copolymerizable with a) and b); and to the use of said copolymers for retanning leathers previously tanned by a mineral or combined method. The leathers treated with the retanning agents according to the invention in particular stand out for an improved fullness and good grain tightness.
The acid groups of monomers a) preferably are carboxyl groups.

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Hawley's Condensed Chemical Dictionary, 11th ed., 1987, p. 437; Van Nostrand Reinhold.
Abstract of Published German Patent Application No. DE 3,248,485.

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