Composition for impregnating porous materials, preparation and use thereof
AssigneeMonash University Act 1958
InventorJohn Bernard Watkins
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Abstract
Composition for impregnating porous materials, in which the composition contains at lease one component having preservative properties or which release a component having preservative properties on heating, the composition comprising an emulsion of water and oil containing a primary surfactant and an amphoteric additive, the pH of the emulsion being equal or approximately equal to the iso-electric point of the amphoteric additive. The compositions of the invention are particularly useful in the preservation of timber.
Claims17
Composition for impregnating porous materials, in which the composition contains at least one component having preservative properties or which releases a component having preservative properties on heating, the composition comprising an emulsion of water and oil containing a primary surfactant and an amphoteric additive, the pH of the emulsion being equal or approximately equal to the iso-electric point of the amphoteric additive.
Process for preparing a composition for impregnating porous materials, the process comprising forming an emulsion of water and oil containing a primary surfactant and an amphoteric additive and adjusting the pH of the emulsion to be equal or approximately equal to the iso-electric point of the amphoteric additive.
A process for preserving timber which comprises impregnating the timber with a composition containing at least one component having preservative properties or which releases a component having preservative properties upon heating, said composition comprising an emulsion of water and oil containing a primary surfactant and an amphoteric additive wherein said emulsion has a pH which is equal to or approximately equal to the iso-electric point of the amphoteric additive.
Dependencies are inferred from the claim text.