A Method and Formulation for the Treatment of Timber
AssigneeArch Wood Protection Pty Ltd
InventorsDavid Humphrey, Brett Skewes, Shane McFarling
Life of this patent
Estimating the term…
Abstract
According to the present invention there is provided a method of treating timber with a creosote-containing preservative formulation adapted for use at substantially ambient temperature. The formulation comprises: creosote; one or more surfactants such that when diluted with a predetermined quantity of water, the creosote is present as an oil-in-water macroemulsion or microemulsion; and optionally, an anti-foaming agent and/or a fire retardant. It is found empirically that the inventive concentrate allows for the use of creosote, a known-effective biocide, without many of the drawbacks inherent in such use.
Claims25
A method of treating timber, the method comprising the steps of:
- selecting a timber substrate;
- and
- applying to the substrate an effective amount of a preservative formulation comprising an oil-in-water macroemulsion or microemulsion of creosote in water and one or more surfactants comprising a non-ionic surfactant,
- wherein the preservative formulation is at substantially ambient temperature.
A preservative concentrate for the treatment of timber at substantially ambient temperature, the concentrate comprising:
- creosote;
- and
- one or more surfactants comprising a non-ionic surfactant, such that when the concentrate is diluted with a predetermined quantity of water, the creosote is present as an oil-in-water macroemulsion or microemulsion.
Dependencies are inferred from the claim text.