IP Library › Granted Patent US 9,079,328
Granted Patent B2
US 9,079,328 · App. 14/263,568 · Granted Jul 14, 2015

Micronized wood preservative formulations

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Quick Facts
Patent No.
US 9,079,328
App. No.
14/263,568
Granted
Jul 14, 2015
Kind
B2
Abstract

The present invention provides wood preservative compositions comprising micronized particles. In one embodiment, the composition comprises dispersions of micronized metal or metal compounds. In another embodiment, the wood preservative composition comprises an inorganic component comprising a metal or metal compound and organic biocide. When the composition comprises an inorganic component and an organic biocide, the inorganic component or the organic biocide or both are present as micronized particles. When compositions of the present invention are used for preservation of wood, there is minimal leaching of the metal and biocide from the wood.

Claims (11)

1. A wood product comprising:

(a) a dispersion in water of a biocidally effective amount of particles of copper carbonate or basic copper carbonate having a particle size of between 0.001 and 25 microns; and

(b) a biocidally effective amount of one or more organic biocides selected from cyproconazole, propiconazole, and tebuconazole,

wherein the particles of the copper carbonate or basic copper carbonate are distributed within the wood product and render the wood product resistant to fungal decay.

2. The wood product of claim 1 , wherein the particles of the copper compound have a particle size of between 0.001 and 10.0 microns.

3. The wood product of claim 1 , wherein the particles of the copper compound have a particle size of between 0.001 and 1.0 microns.

4. The wood product of claim 1 , wherein the particles of the copper compound have a particle size of between 0.05 and 1.0 microns.

5. The wood product of claim 1 , wherein the one or more organic biocides is tebuconazole.

6. The wood product of claim 1 , wherein the one or more organic biocides is solid.

7. The wood product of claim 1 , wherein the particles of the copper carbonate or basic copper carbonate have a particle size of between 0.05 and 1.0 microns, and the one or more organic biocides is tebuconazole.

8. The wood product of claim 1 , wherein the wood product is particleboard.

Assignments (5)
RELEASE OF PATENT SECURITY INTERESTS Recorded Jun 20, 2022
From: PNC BANK, NATIONAL ASSOCIATION
To: KOPPERS DELAWARE, INC.; KOPPERS PERFORMANCE CHEMICALS INC. (F/K/A OSMOSE, INC.); KOPPERS UTILITY AND INDUSTRIAL PRODUCTS INC. (F/K/A COX INDUSTRIES, INC.); KOPPERS INC. (F/K/A KOPPERS INDUSTRIES, INC.)
Reel/Frame 060390/0207 →
SECURITY AGREEMENT Recorded Jun 20, 2022
From: KOPPERS DELAWARE, INC.; KOPPERS PERFORMANCE CHEMICALS INC.
To: PNC BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 060390/0246 →
SECOND AMENDMENT TO CREDIT AGREEMENT AND JOINDER TO PATENT, TRADEMARK AND COPYRIGHT SECURITY AGREEMENT Recorded May 18, 2018
From: KOPPERS INC.; KOPPERS HOLDINGS INC.; KOPPERS DELAWARE, INC.; KOPPERS ASIA LLC; KOPPERS CONCRETE PRODUCTS, INC.; CONCRETE PARTNERS, INC.; KOPPERS PERFORMANCE CHEMICALS, INC.; KOPPERS RAILROAD STRUCTURES INC.; KOPPERS WORLD-WIDE VENTURES CORPORATION; M.A. ENERGY RESOURCES, LLC; KOPPERS VENTURES INC.; KOPPERS-NEVADA LIMITED-LIABILITY COMPANY; KOPPERS NZ LLC; WOOD PROTECTION MANAGEMENT LLC; WOOD PROTECTION LP; COX INDUSTRIES, INC.; COX WOOD PRESERVING COMPANY
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 046188/0895 →
CHANGE OF NAME Recorded Oct 14, 2014
From: OSMOSE, INC.
To: KOPPERS PERFORMANCE CHEMICALS INC.
Reel/Frame 033987/0445 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2014
From: LEACH, ROBERT M.; ZHANG, JUN
To: OSMOSE, INC.
Reel/Frame 033411/0512 →