Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas L. Harper0
Allan Rosenberg0
Boris Reznikov0
Date of Patent
December 2, 2008
0Patent Application Number
118431400
Date Filed
August 22, 2007
0Patent Primary Examiner
Patent abstract
An aqueous wood preservation composition containing inorganic polymers of one or more of the following metals is disclosed; aluminum (approximately 3.8%-7.0% as Al2O3), zirconium (approximately 5.25%-9.1% as ZrO2), copper (approximately 0.7%-8.8% as CuO) and a fixing agent such as acetic acid or sodium acetate. The pH is adjusted to be between 2.0-4.0 using an inorganic base such as copper carbonate. The invention includes wood and cellulose fibers treated by the composition of the present invention as well as methods of preserving wood and cellulose fibers using the compositions.
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