Condensation products of terphenylsulphonic acids, naphthalenesulphonic acids, bis-(4-hydroxyphenyl) sulphone and formaldehyde

Condensation products which are obtained by co-condensation, in an acid aqueous medium, of terphenylsulphonic acids, naphthalenesulphonic acid, bis-(4-hydroxyphenyl) sulphone and compounds which release formaldehyde are used as tanning agents for the production of leather and as re-tanning agents fo...

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Bibliographische Detailangaben
Hauptverfasser:	ZINZ, BRUNO, NEBELING, REINHARD, SCHADE, FRANZ
Format:	Patent
Sprache:	eng
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:	Condensation products which are obtained by co-condensation, in an acid aqueous medium, of terphenylsulphonic acids, naphthalenesulphonic acid, bis-(4-hydroxyphenyl) sulphone and compounds which release formaldehyde are used as tanning agents for the production of leather and as re-tanning agents for re-tanning mineral-tanned leather.