Method of manufacturing a wood preservative composition

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 Al 2 0 3 ), zirconium (approximately 5.25%-9.1% as ZrO 2 ), 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.

1 - 13 . (canceled)  
   
   
       14 . A method of manufacturing a wood preservative composition comprising an aqueous solution of inorganic polymers containing aluminum, zirconium, copper, and a fixing agent, the solution having a pH in the range of about 2.0-4.0, comprising the steps of: 
 (a) preparing an aqueous solution of a fixing agent;    (b) dissolving a zirconium salt in the solution;    (c) adjusting the solution pH to about 2.0 to about 4.0;    (d) cooling the solution if necessary;    (e) dissolving an aluminum salt in the solution;    (f) dissolving a copper salt in the solution; and    (g) if necessary, further adjusting the solution pH to about 2.0 to about 4.0.    
   
   
       15 - 24 . (canceled)