Single step creosote/borate wood treatment
AssigneeStella-Jones Inc.
InventorGordon Murray
Life of this patent
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Abstract
Disclosed is a method of reducing insect and microbial decay in wood. The method comprises the steps of: a) immersing the wood in a treatment solution comprising i) a C1-C6monoalkanolamine ester of boric acid (e.g., monoethanolamine ester of boric acid) and ii) creosote; and b) exposing the immersed wood from step a) to conditions which cause the release of boron from the C1-C6 monoalkanolamine ester of boric acid (monoethanolamine ester of boric acid) and which cause the boron to migrate into the interior of the wood.
Claims23
A wood treatment composition comprising:
- (1) at least about 3% w/w of a reaction product of C2-C6 monoalkanolamine and boric acid;
- and 2) at least about 90% w/w creosote;
- wherein the reaction product comprises a C2-C6 monoalkanolamine ester of boric acid;
- and the composition is greater than 98% free of water and is a homogeneous mixture.
A wood treatment composition comprising:
- (1) at least about 3% w/w of a reaction product of monoethanolamine and boric acid, wherein the reaction product comprises boric acid and a monoethanolamine ester of boric acid;
- 2) at least about 90% w/w creosote;
- and
- 3) biodiesel;
- wherein the composition is a homogeneous mixture and is greater than 98% free of water.
A wood treatment composition consisting essentially of:
- (1) at least about 3% w/w of a reaction product of monoethanolamine and boric acid, wherein the reaction product comprises boric acid and a monoethanolamine ester of boric acid;
- (2) about 90 to 97% w/w creosote;
- and
- (3) biodiesel;
- wherein the reaction product is formed from a mixture which includes 23-43 wt. % monoethanolamine and 40-60 wt. % boric acid;
- and the reaction product and the biodiesel are present in a ratio of 0.5:0.5 to 0.9:0.1;
- the composition is greater than 98% free of water and is a homogeneous mixture;
- the composition comprises at least 3% by weight of the monoethanolamine ester of boric acid.
Dependencies are inferred from the claim text.