Preventative treatment of wood
AssigneePerma-Chink Systems, Inc.
InventorsRichard C. Dunstan, John F. Bartlett
Life of this patent
Estimating the term…
Abstract
Methods and compositions for protecting wooden members (components) against attack by destructive insects and fungi. The wood preservative is formulated as a paste and is applied in that form to an exposed surface of the member. The active ingredient is released by that same moisture which creates conditions conducive to destructive attacks on the wood. Boron-based active ingredients are preferred as are polyethylene glycol carriers for the active ingredient.
Claims9
A controlled release wood preservative which is effective against insects and fungi and which comprises a boron-based pesticide dispersed in a carrier, said carrier comprising both a solid polyethylene glycol and a liquid polyethylene glycol and said pesticide being present in an amount such that said preservative is effective to protect wood against insecticidal and fungal attack.
Dependencies are inferred from the claim text.