Claims
- 1. An adhesive composition, comprising:
at least one lignin component; at least one amine compound; and at least one boron compound.
- 2. The composition according to claim 1 wherein the lignin component is derived from decayed lignocellulosic material.
- 3. The composition according to claim 1 wherein the lignin component comprises an industrial lignin preparation.
- 4. The composition according to claim 1 wherein the composition is substantially formaldehyde-free.
- 5. The composition according to claim 1 wherein the composition comprises from about 0.1% to about 5% of at least one boron compound or plural boron compounds by weight of the lignin component.
- 6. The composition according to claim 1 wherein the amine compound comprises a polyamine.
- 7. A substantially formaldehyde-free adhesive composition, comprising:
solubilized decayed lignocellulosic material; and at least one polyamine.
- 8. The composition according to claim 7 wherein the solubilized decayed lignocellulosic material is mixed with a boron compound to produce boron-modified solubilized decayed wood.
- 9. The composition according to claim 8 wherein the boron-modified solubilized decayed lignocellulosic material comprises a reaction product of sodium borohydride and solubilized decayed lignocellulosic material.
- 10. The composition according to claim 7 wherein the composition further comprises a borate.
- 11. The composition according to claim 7 wherein the polyamine comprises polyethyleneimine.
- 12. The composition according to claim 7 wherein the solubilized decayed lignocellulosic material comprises a lignin.
- 13. A method for making a lignocellulosic composite, comprising:
contacting an adhesive composition according to claim 1 with at least a first lignocellulosic substrate; and bonding the first lignocellulosic substrate to at least a second lignocellulosic substrate.
- 14. The method according to claim 13 wherein the method comprises
forming a pre-bonded assembly of the first lignocellulosic substrate, the adhesive composition, and the second lignocellulosic substrate; and heating the adhesive composition to at least about 100° C.
- 15. The method according to claim 13 wherein the first and second lignocellulosic substrates comprise lignocellulosic particles, and the contacting comprises mixing the adhesive composition with the lignocellulosic particles to form a pre-bonded assembly.
- 16. A method for making a lignocellulosic composite, comprising:
contacting an adhesive composition according to claim 7 with at least a first lignocellulosic substrate; and bonding the first lignocellulosic substrate to at least a second lignocellulosic substrate.
- 17. A lignocellulosic composite, comprising at least a first and a second lignocellulosic substrate, the first and second substrates being bonded together by an adhesive according to claim 1.
- 18. A lignocellulosic composite, comprising at least a first and a second lignocellulosic substrate, the first and second substrates being bonded together by an adhesive according to claim 7.
- 19. An adhesive composition comprising a batch of the following ingredients that includes:
solubilized decayed lignocellulosic material; at least one boron compound; and at least one polyamine.
- 20. An adhesive composition comprising a batch of the following ingredients that includes:
solubilized decayed lignocellulosic material; at least one reducing agent; and at least one polyamine.
- 21. An adhesive composition produced by:
mixing decayed lignocellulosic material with at least one boron compound; and contacting the resulting mixture with at least one polyamine.
- 22. An adhesive composition produced by:
mixing decayed lignocellulosic material with at least one reducing agent; and contacting the resulting mixture with at least one polyamine.
- 23. The composition according to claim 2, wherein the decayed lignocellulosic material comprises decayed wood.
- 24. The composition according to claim 19, wherein the decayed lignocellulosic material comprises decayed wood.
- 25. An adhesive composition comprising:
a mixture of at least one decayed lignocellulosic material and an alkaline aqueous solution; and at least one polyamine.
- 26. The composition according to claim 1, wherein the boron compound is selected from boric acid, a boron salt, a borate ester, or a mixture thereof.
- 27. The composition according to claim 1, wherein the lignin component comprises demethylated lignin.
- 28. The composition according to claim 26, wherein the lignin component comprises demethylated lignin.
- 29. An adhesive composition comprising a batch of the following ingredients that includes:
demethylated lignin; at least one boron compound; and at least one polyamine.
- 30. The adhesive composition according to claim 29, wherein the boron compound is selected from boric acid, a boron salt, a borate ester, or a mixture thereof, and the polyamine comprises polyethyleneimine.
- 31. A method for making a lignocellulosic composite, comprising:
contacting an adhesive composition according to claim 29 with at least a first lignocellulosic substrate; and bonding the first lignocellulosic substrate to at least a second lignocellulosic substrate.
- 32. A lignocellulosic composite, comprising at least a first and a second lignocellulosic substrate, the first and second substrates being bonded together by an adhesive according to claim 29.
Parent Case Info
[0001] This application claims the benefit of U.S. Provisional Application No. 60/456,568, filed Mar. 20, 2003, the entire disclosure of which is incorporated herein by reference.
ACKNOWLEDGEMENT OF GOVERNMENT SUPPORT
[0002] The United States government may have certain rights in the invention pursuant to grant number 2001-35504-10993, awarded by the National Research Initiative Competitive Grants Program of the USDA.
Provisional Applications (1)
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Number |
Date |
Country |
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60456568 |
Mar 2003 |
US |