Compositions and methods for wood preservation
AssigneeBoard of Control of Michigan Technological University
InventorsPeter Laks, Patricia A. Heiden
Life of this patent
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Abstract
The invention provides a method for incorporating biocides into wood or a wood product. The method comprises incorporating an additive into a nanoparticle, applying the nanoparticle to wood or a wood particle and applying sufficient pressure to force the nanoparticle to penetrate the wood or wood particle.
Claims18
A method for incorporating additives into wood or a wood product, the method comprising:
- synthesizing a nanoparticle having an additive incorporated therein without using a surfactant;
- applying the nanoparticle to wood or a wood particle;
- and
- applying sufficient pressure to force the nanoparticle to penetrate the wood or wood product.
The method of claim wherein the biocide comprises at least one of a quaternary ammonium salt, pentachlorophenol, chlorothalonil (CTL), chlorpyrifos, an isothiazolone, a pyrethroid, an insecticide, imidichloprid, oxine copper and a combination thereof.
The method of claim wherein the biocide comprises a fungicide.
The method of claim wherein the metallic salt comprises copper naphthenate, zinc naphthenate, a zinc salt, a copper salt and a combination thereof.
A method of inhibiting decomposition of wood or a wood product, the method comprising:
- using a polymer to incorporate a biocide into a nanoparticle, the polymer being modified in such a way that a surfactant is substantially not needed to incorporate the biocide into the nanoparticle;
- applying the nanoparticle having the biocide incorporated therein to wood or a wood product;
- and
- applying sufficient pressure to force the nanoparticle to penetrate the wood wood particle.
A method for incorporating a biocide into wood or a product, the method comprising:
- incorporating a biocide into a nanoparticle, the biocide selected from the group consisting of at least one of a quaternary ammonium salt, pentachlorophenol, chlorpyrifos, an isothiazolone, a pyrethroid, an insecticide, imidichloprid, oxine copper, boric acid, a sodium borate salt, zinc borate, propiconazole, a triazole, copper naphthenate, zinc naphthenate, zinc salt, copper salt and a combination thereof;
- applying the nanoparticle to wood or a wood particle;
- and
- applying sufficient pressure to force the nanoparticle to penetrate the wood or wood particle.
A method for incorporating additives into wood or a wood product, the method comprising:
- incorporating a biocide into a nanoparticle using a polymer, the polymer selected from the group consisting of at least one of polymethacrylate, polystyrene, polyester, polyethylene, polypropylene, polyvinylchloride, a combination thereof and a blend thereof with acrylic acid;
- applying the nanoparticle to wood or a wood particle;
- and
- applying sufficient pressure to force the nanoparticle to penetrate the wood or wood particle.
A method for incorporating additives into wood, the method comprising:
- synthesizing a nanoparticle having a biocide incorporated therein, with the proviso that the biocide is not tebuconazole or chlorothalonil;
- applying the nanoparticle to wood;
- and
- applying sufficient pressure to force the nanoparticle to penetrate the wood.
Dependencies are inferred from the claim text.