Micronized wood preservative formulations
AssigneeKoppers Performance Chemicals Inc.
InventorsRobert M. Leach, Jun Zhang
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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.
Claims14
A wood product comprising:
- a) a dispersion in water of particles of a copper compound selected from the group consisting of copper-8-hydroxyquinolate, copper dimethyldithiocarbamate, copper omadine, and copper borate, the particles of the copper compound having a particle size of from 0.05 to 1.0 microns;
- b) one or more emulsifying agents, or one or more dispersants, or one or more alkoxylated diamines or trialkylamine oxides, or a combination thereof;
- and
- c) tebuconazole, cyproconazole, or a quaternary ammonium compound,
- wherein the particles of the copper compound are distributed within the wood product and render the wood product resistant to fungal decay.
Dependencies are inferred from the claim text.