Leather production and aqueous formulations suitable therefor
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United States of America Patent
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Feb 4, 2014
Grant Date -
Jun 7, 2012
app pub date -
Nov 30, 2011
filing date -
Dec 2, 2010
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Abstract
A process for producing leather comprises treating part-processed hides, crust leathers or pelts with at least one aqueous float comprising
- (A) at least one amphiphilic organic copolymer,(B) at least one silicone compound having at least one carboxylic acid group or at least one carboxylic anhydride group per molecule,(C) at least one surface-active compound selected from emulsifiers having at least one phosphorus atom per molecule,(D) at least one surface-active compound selected from N-acylated amino acids,(E) at least one surface-active compound comprising at least one C10-C30-alkyl radical, branched or unbranched, or at least one polyisobutene moiety, and at least one ionic or aqueous-ionizable group, other than amphiphilic copolymer (A) and surface-active compound (C),and which is free of waxes and oils.
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