Wood preservative composition, process for treating wood with the same, wood treated with the same
AssigneeKabushiki Kaisha Koshii Preserving
InventorKazunobu Shiozawa
Life of this patent
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Abstract
A wood preservative composition includes a first solution having: a copper compound selected from the group consisting of copper borate, copper hydroxide, copper acetate, copper chloride, and copper sulfate; a zinc compound selected from the group consisting of zinc borate, zinc acetate, zinc hydroxide, zinc oxide, zinc chloride, and zinc sulfate; and/or a boron compound selected from the group consisting of boric acid and borax; sodium silicate, and a second solution having rare earth chloride or alkaline earth chloride.
Claims12
A wood preservative composition comprising:
- a preservative component selected from the group consisting of copper compound, zinc compound, boron compound, and mixtures thereof, said preservative component being present in an amount of 0.1 to 10 wt. %;
- water;
- a volatile basic compound, said volatile basic compound having the formula R.sub.3 N, R being selected from the group consisting of a hydrogen atom and a lower alkyl group, said volatile basic compound being present in an amount effective to dissolve the preservative component in water;
- sodium silicate, said sodium silicate being present in an amount of 0.1 to 50 wt. %;
- and
- an aqueous solution including neutral salt, said neutral salt being at least one compound selected from the group consisting of a rare earth chloride and an alkaline earth salt, and said neutral salt being present in an amount of 1 to 50 wt. %.
A process for treating wood comprising the steps of:
- impregnating wood with a solution including:
- a preservative component selected from the group consisting of copper compound, zinc compound, boron compound, and mixtures thereof, said preservative component being present in an amount of 0.1 to 10 wt. %;
- water;
- a volatile basic compound, said volatile basic compound having the formula R.sub.3 N, R being selected from the group consisting of a hydrogen atom and a lower alkyl group, said volatile basic compound being present in an amount effective to dissolve the preservative component in water;
- sodium silicate, said sodium silicate being present in an amount of 0.1 to 50 wt. %;
- and
- impregnating the wood impregnated with the solution with another solution including a neutral salt, said neutral salt being at least one compound selected from the group consisting of a rare earth chloride and an alkaline earth salt.
A wood preservative composition comprising:
- a preservative component selected from the group consisting of copper compound, zinc compound, boron compound, and mixtures thereof, said preservative component being present in an amount of 0.1 to 10 wt. %;
- water;
- a volatile basic compound, said volatile basic compound having the formula R.sub.3 N, R being selected from the group consisting of a hydrogen atom and a lower alkyl group, said volatile basic compound being present in an amount effective to dissolve the preservative component in water;
- and
- a neutral salt, said neutral salt being present in an amount of 0.1 to 50 wt. %
Dependencies are inferred from the claim text.