Fatliquoring solution dispersion or emulsion and a process...

Details Fatliquoring solution dispersion or emulsion and a process... Fatliquoring solution dispersion or emulsion and a process...

C - Chemistry, Metallurgy

14

C

8/65

C14C 9/02 (2006.01) D06N 3/14 (2006.01)

Patent

CA 1257453

A FATLIQUORING SOLUTION DISPERSION OR EMULSION AND A PROCESS FOR TREATING LEATHER THEREWITH ABSTRACT OF THE DISCLOSURE Aqueous fatliquoring solutions, dispersions or emulsions are made with (a) polyethers having at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or (b) polyesters containing at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or (c) polycarbonates containing at least two hydroxyl groups and a molecular weight of from 200 to 20,000 and/or mixtures thereof. These fatliquoring agents are used to treat tanned leathers until from 0.1 to 20 wt % has been taken up. The thus-treated leather is particularly useful in the production of leather- polyurethane compositions such as shoes without the use of an adhesive.

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