Bio-oil preservatives
AssigneeEnsyn Technologies, Inc.
InventorsBarry Freel, Robert G. Graham
Life of this patent
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Abstract
The present invention is directed to bio-oil compositions, derived from fast pyrolysis of wood feedstocks, that exhibit properties of a preservative. The bio-oil may be used alone, in formulations with either a waterbased, or an oilbased, or a combination of a water based and an oil based preservatives. This invention also includes a method of preparing a wood preservative composition comprising, processing treated wood containing a preservative using a fast pyrolysis reactor, and obtaining the bio-oil fraction. The application of wood products with the bio-oil of the present invention is also disclosed.
Claims32
A bio-oil composition comprising derivatized lignin, alcohol, natural organic acids, carbonyls and at least one compound selected from the group consisting of:
- 1-(or 2-)methylnapthalene
- 1,1′-biphenyl, or acenaphthalene, or 2-ethenyl-naphthalene,
- 3-hydroxy-4-methoxy (or 4-hydroxy-3-methoxy)-phenol,
- dibenzofuran,
- 4-hydroxy-3-methoxy-benzeneacetic acid,
- 9H-fluorene or 1H-phenalene,
- phenanthrene or anthracene,
- fluoranthene or pyrene, and;
- wherein said bio-oil is a wood preservative, and is liquid at room temperature.
A method of preserving wood comprising, applying a bio-oil to said wood, said bio-oil comprising derivatized lignin, alcohol, natural organic acids, and carbonyls, wherein said bio-oil is liquid at room temperature, and is not an adhesive resin.
A method of increasing the strength of a wood product comprising, applying a bio-oil to said wood, said bio-oil comprising derivatized lignin, alcohol, natural organic acids, and carbonyls, wherein said bio-oil is liquid at room temperature, and is not an adhesive resin.
Dependencies are inferred from the claim text.