Method of preserving wood with lanthanide derivatives

The invention is a method for pressure treatment of wood using compositions comprising aqueous solutions of one or more lanthanide derivatives. Wood is immersed in a pressure vessel containing a lanthanide derivative composition, and hydrostatic pressure is applied. The treatment is carried out at t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DAVISON, JOHN F, GRADEFF, PETER S
Format:	Patent
Sprache:	eng
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:	The invention is a method for pressure treatment of wood using compositions comprising aqueous solutions of one or more lanthanide derivatives. Wood is immersed in a pressure vessel containing a lanthanide derivative composition, and hydrostatic pressure is applied. The treatment is carried out at temperatures not exceeding about 95 DEG C., and more preferably at between about 20 DEG C. and about 30 DEG C. Pressure should be greater than about atmospheric, and preferably about 10 psi to about 300 psi.