Wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method treating a wood substrate therewith, and a wood product produced therefrom
AssigneeKoppers Performance Chemicals Inc.
InventorsMin Kuang, Jun Zhang
Life of this patent
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Abstract
A wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method of treating a wood substrate therewith, and a wood product produced therefrom are provided. The wood preservative composition comprises at least 0.5% by weight of DCOI based on the total weight of the composition and a retaining additive comprising a solvent-borne polymeric resin, N a wax, or a combination thereof. A weight ratio of the DCOI to the retaining additive in the composition is in a range of 1:5 to 5:1.
Claims20
A wood preservative composition comprising:
- 1% by weight to 5% by weight of 4,5-dichloro-2-octylisothiazol-3-one (DCOI) based on a total weight of the wood preservative composition;
- 0.5% by weight to 10% by weight of a retaining additive comprising a wax, wherein a weight ratio of the DCOI to the retaining additive is in a range of 1:4 to 4:1;
- and
- at least 80% by weight of an organic solvent, wherein the organic solvent comprises a flash point of at least 60 degrees Celsius.
A wood preservative composition consisting essentially of:
- 1% by weight to 5% by weight of 4,5-dichloro-2-octylisothiazol-3-one (DCOI) based on a total weight of the wood preservative composition;
- 1% by weight to 5% by weight of a retaining additive comprising a wax, wherein a weight ratio of the DCOI to the retaining additive is in a range of 1:1.5 to 1.5:1;
- at least 90% by weight of a hydrocarbon solvent, wherein the hydrocarbon solvent comprises a flash point of at least 60 degrees Celsius and wherein the retaining additive has a solubility in the hydrocarbon solvent of at least 1% by weight;
- and
- optionally a colorant, an ultraviolet (UV) stabilizer, a UV absorber, a de-foamer, a water repellent, an additional biocide, a fungicide, a termiticide, a fire retardant, or a combination.
A wood preservative composition consisting essentially of:
- 1% by weight to 5% by weight of 4,5-dichloro-2-octylisothiazol-3-one (DCOI) based on a total weight of the wood preservative composition;
- 1% by weight to 5% by weight of a retaining additive comprising a wax, wherein a weight ratio of the DCOI to the retaining additive is in a range of 1:1.5 to 1.5:1;
- at least 90% by weight of an organic solvent, wherein the organic solvent comprises diesel, biodiesel, or a combination thereof, and wherein the retaining additive has a solubility in the organic solvent of at least 1% by weight;
- and
- optionally a colorant, an ultraviolet (UV) stabilizer, a UV absorber, a de-foamer, a water repellent, an additional biocide, a fungicide, a termiticide, a fire retardant, or a combination.
Dependencies are inferred from the claim text.