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US 11,140,901 B2Granted
Wood preservative and method for producing same
AssigneeKoppers Performance Chemicals Inc.
InventorsJun Zhang, Peter Tham, John Horton
Life of this patent
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Abstract
A synergistic aqueous wood preservative composition comprising a copper compound and penflufen. The copper compounds of the compositions of the invention may be soluble, partially solubilized or micronized particles. The penflufen of the compositions of the invention may be solubilized, emulsified or particulate. The wood preservative compositions of the present invention are surprisingly provided as stable dispersions and confer surprising and unexpected resistance to treated wood and wood products.
Claims27
A wood or wood product comprising:
- a. a copper compound, wherein the copper compound is micronized and the copper compound is basic copper carbonate;
- and
- b. penflufen;
- in a copper:
- penflufen ratio from 5:1 to 200:1 , and wherein the wood or the wood product contains the penflufen in an amount between about 4 to 200 g/m3;
- wherein the wood or wood product is resistant to fungal decay.
3 more elements
Dependencies are inferred from the claim text.