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US 9,775,350 B2Granted
Micronized wood preservative formulations in organic carriers
AssigneeKoppers Performance Chemicals Inc.
InventorsJun Zhang, Robert M. Leach
Life of this patent
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Abstract
Provided is a composition for the preservation of wood and other cellulosic materials. The composition comprises a dispersion of micronized inorganic compounds and/or organic biocides in an organic carrier. Also provided is a method for making the composition.
Claims13
A method for preserving a wood product comprising the step of contacting the wood product with an organic liquid wood preservative composition consisting essentially of:
- (a) a carrier consisting essentially of one or more liquid organic components;
- (b) solid particles of copper and/or one or more copper compounds dispersed in said one or more organic liquid components;
- wherein the solid particles have a solubility in the carrier of less than or equal to 0.5 gram per 100 grams of carrier at 25° C., and greater than 80 weight percent of the solid particles have a diameter in the range of 0.001 to 25 microns;
- and wherein at least 50 weight percent of the solid particles have diameters less than 10 microns;
- and wherein less than 20 weight percent of the solid particles have diameters less than 0.001 micron;
- and
- (c) an organic biocide.
4 more elements
Dependencies are inferred from the claim text.