Controlled release, wood preserving composition for treating in-service utility poles, posts, pilings, cross-ties and other wooden structures
AssigneeOsmose Utilities Services, Inc.
InventorsDouglas J. Herdman, Jun Zhang, Thomas Pope, Randy C. Marquardt
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Abstract
Disclosed herein are compositions comprising a dispersion of solid particles of a substantially insoluble copper compound; a boron-containing compound, a fluoride-containing compound, or a combination thereof; wherein at least 20% of the particles of the composition comprise particles having particle size greater than 25 microns. Also disclosed herein are methods of making and using the same.
Claims20
A composition comprising:
- a dispersion of solid particles of a substantially insoluble copper compound;
- a boron-containing compound, a fluoride-containing compound, or a combination thereof;
- and
- wherein at least 20% of the particles of the composition comprise particles having particle size greater than 25 microns.
A method comprising blending particles of a substantially insoluble copper compound;
- and a boron-containing compound, a fluoride-containing compound, or a combination thereof;
- to produce a composition, wherein at least 20% of the particles of the composition comprise particles having particle size greater than 25 microns.
A method of delivering a fungitoxic amount of copper ion to an interior portion of a wooden product comprising:
- applying a composition comprising a dispersion of solid particles of a substantially insoluble copper compound;
- and a boron-containing compound, a fluoride-containing compound, or a combination thereof;
- wherein at least 20% of the particles of the composition comprise particles having particle size greater than 25 microns;
- and
- wherein applying the composition to the wooden structure produces penetration of copper ions into an interior portion of the wooden structure to a fungicidally effective level.
Dependencies are inferred from the claim text.