Title: Alkoxy groups containing copolymers and their use in the retanning of leather
Application Number: 93118332 Application Date: 1993.08.26
Publication Number: 1088589 Publication Date: 1994.06.29
Approval Pub. Date: 1999.10.27 Granted Pub. Date: 1999.10.27
International Classifi-cation: C08F220/02;C08F222/06;C14C3/22
Applicant(s) Name: Chemische Fabrik Stockhausen GmbH Address:
Inventor(s) Name: Kurt Dahmen;Richard Mertens;Helmeet Brehm
Attorney & Agent: YANG HOUCHANG
Abstract:
    Alkoxy group-containing copolymers made of (a) 1 to 99 % by weight water-soluble, ethylenically unsaturated, acid groups-containing monomers, (b) 1 to 50 % by weight monomers with a polyalkoxy sequence and (c) to 60 % by weight water-soluble monomers capable of being copolymerized with (a) and (b) are disclosed, as well as the use of these copolymers to retan leathers tanned with mineral or combined substances. The leathers treated with said retanning substances are characterized in particular by an improved fullness and a resistant grain. The acid groups of the monomers (a) are preferably carboxyl groups.
Time: 6