METHOD FOR THE MANUFACTURE OF SEMI-FINISHED PRODUCTS OF LEATHER OR FUR

The invention relates to a method for the production of semi-finished leather or fur products, characterized in that skins or furs are treated in the presence of a condensation product of component a), the structural units of which are derived from phenolsulfonic acid, dihydroxydiphenylsulfone and f...

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Bibliographische Detailangaben
Hauptverfasser:	BLEY, Matthias, REINERS, Juergen, TYSOE, Christopher, KONRAD, Michael
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 HIDES LEATHER MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PELTS SKINS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a method for the production of semi-finished leather or fur products, characterized in that skins or furs are treated in the presence of a condensation product of component a), the structural units of which are derived from phenolsulfonic acid, dihydroxydiphenylsulfone and formaldehyde, at a pH value of 6.5 - 8.5, preferably 7 - 8.