VERFAHREN ZUM FLAMMFESTMACHEN VON HOLZ MIT ANORGANISCHEN AMMONIUMSALZEN UND DICYANDIAMID-FORMALDEHYD-UMSETZUNGSPRODUKTEN

VERFAHREN ZUM FLAMMFESTMACHEN VON HOLZ MIT ANORGANISCHEN AMMONIUMSALZEN UND DICYANDIAMID-FORMALDEHYD-UMSETZUNGSPRODUKTEN

A process for flameproofing wood is claimed, which comprises treating the wood with aqueous preparations which contain (a) at least one water-soluble ammonium salt of a non-volatile inorganic acid, e.g. ammonium sulfate or ammonium phosphate, (b) at least one water-soluble cationic reaction product...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROHRINGER,PETER, WEGMUELLER,HANS,DR
Format: Patent
Sprache:ger
Schlagworte:
CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW ORSIMILAR MATERIALS
NAILING OR STAPLING MACHINES IN GENERAL
PERFORMING OPERATIONS
PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FORIMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILARMATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITHPERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
TRANSPORTING
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:A process for flameproofing wood is claimed, which comprises treating the wood with aqueous preparations which contain (a) at least one water-soluble ammonium salt of a non-volatile inorganic acid, e.g. ammonium sulfate or ammonium phosphate, (b) at least one water-soluble cationic reaction product of dicyandiamide, formaldehyde, optionally an ammonium salt and/or an alkylenepolyamine containing at most 18 carbon atoms, or the acid salt thereof. Components (a) and (b) are applied in succession or preferably simultaneously and the wood is subsequently dried. The flameproof finish obtained is resistant to rinsing. The wood provided with the flameproof finish is used in particular as mine timber.