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, 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.
Claims27
A wood preservative composition comprising:
- 40% by weight to 60% by weight 4,5-dichloro-2-octylisothiazol-3-one (DCOI) based on a total weight of the composition;
- and
- 40% by weight to 60% by weight of a retaining additive comprising a wax based on the total weight of the composition,
- wherein a weight ratio of the DCOI to the retaining additive is in a range of 1:5 to 5:1.
A wood preservative composition consisting essentially of:
- 45% by weight to 55% by weight 4,5-dichloro-2-octylisothiazol-3-one (DCOI) based on a total weight of the composition;
- and
- 45% by weight to 55% by weight of a retaining additive comprising a first petroleum wax and a second petroleum wax comprising a paraffin wax, wherein the retaining additive comprises a melting point in a range of 75 degrees Celsius to 100 degrees Celsius.
A wood preservative composition comprising:
- 40% by weight to 60% by weight 4,5-dichloro-2-octylisothiazol-3-one (DCOI) based on a total weight of the composition;
- and
- 40% by weight to 60% by weight of a retaining additive based on the total weight of the composition, wherein the retaining additive comprises a microcrystalline wax,
- wherein a weight ratio of the DCOI to the retaining additive is in a range of 1:1.5 to 1.5:1.
Dependencies are inferred from the claim text.