COMPOSITION AND PROCESS FOR WATERPROOFING LEATHER

The present invention relates to a novel composition for waterproofing leather, hides and/or pelts comprising a carboxyl-functional polysiloxane or an epoxide-functional polysiloxane and a polymer dispersion that contains 2 to 35 weight % of carboxylic groups, preferably a polyacrylate dispersion, t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	D ANVERS, Frédéric François Bert, DANISCH, Peter, QIANG, Guoqiang, GAMARINO, Roberta
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS FOR TANNING COMPOSITIONS OF MACROMOLECULAR COMPOUNDS HIDES LEATHER METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PELTS SKINS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a novel composition for waterproofing leather, hides and/or pelts comprising a carboxyl-functional polysiloxane or an epoxide-functional polysiloxane and a polymer dispersion that contains 2 to 35 weight % of carboxylic groups, preferably a polyacrylate dispersion, to obtain leather that has a good water resistance according to ISO DIN EN ISO 5403-2 and DIN EN ISO 5403-1.