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US 7,246,452 B1Granted
Method for treating preservative-treated wood
OwnerJacques Royinventor
Life of this patent
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Abstract
There is provided a method for treating preservative-treated wood such that the preservative is substantially prevented from leaching. The treatment comprises drying of the preservative-treated wood until the moisture content of the wood is below a level capable of supporting the diffusion of the preservative.
Claims10
A method for treating preservative-treated wood, said method comprising:
- providing preservative-treated wood containing a borate preservative;
- preheating said preservative-treated wood at a temperature close to a vaporization temperature of free water;
- heat-treating said preservative-treated wood until a moisture content of said preservative-treated wood is less than 1% which is below a level supporting diffusion of said borate preservative within said wood whereby leaching of said borate preservative from said wood is inhibited;
- and
- cooling said preservative-treated wood.
2 more elements
Dependencies are inferred from the claim text.