IP Library Granted Patent US 7,128,778
Granted Patent B2
US 7,128,778 · App. 10/297,398 · Granted Oct 31, 2006

Preservative compositions for wood products

Assignee: Woodholdings Environmental, Inc.
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Quick Facts
Patent No.
US 7,128,778
App. No.
10/297,398
Granted
Oct 31, 2006
Kind
B2
Abstract

Preservative compositions for wood products is described. The compositions include at least one boron-containing material, such as but not limited to boric anhydride, and at least one silane-containing material, such as but not limited to methyltrichlorosilane. Optionally, at least one solvent, such as tetrahydrofuran, pentane, or water, may also be employed in the compositions. The compositions impart protection to the treated wood products, especially damage caused by exposure to water and insects.

Claims (83)

1. A preservative composition for a wood product comprising:

boric anhydride;

methyltrichlorosilane; and

at least one solvent.

2. A preservative composition as set forth in claim 1 wherein the at least one solvent contains a hydrocarbon.

3. A preservative composition as set forth in claim 1 wherein the at least one solvent contains at least one of tetrahydrofuran, pentane, hexane, heptane, water, and combinations thereof.

4. A preservative composition as set forth in claim 3 wherein the boric anhydride is dissolved in water.

5. A preservative composition as set forth in claim 3 wherein the methyltrichlorosilane is dissolved in the at least one solvent.

6. A preservative composition as set forth in claim 1 wherein the boric anhydride is adapted to be present in the wood product at a concentration of 0.1 to 7 weight percent.

7. A preservative composition as set forth in claim 1 wherein the boric anhydride is adapted to be present in the wood product at a concentration of 0.1 to 1 weight percent.

8. A preservative composition as set forth in claim 1 wherein the boric anhydride is adapted to be present in the wood product at a concentration of 1 to 2 weight percent.

9. A preservative composition comprising:

boric anhydride;

methyltrichlorosilane;

at least one solvent; and

wherein the methyltrichlorosilane is present in the at least one solvent at a concentration of 1 to 3 volume percent.

10. A method for protecting a wood product, said method comprising the steps of:

providing a composition comprising at least one material containing silane and at least one hydrocarbon solvent;

contacting the wood product with the composition and penetrating and diffusing the silane into the wood product; and

wherein the at least one material containing silane is present in the hydrocarbon solvent at a concentration of 1 to 3 volume percent.

11. A method for protecting a wood product, said method comprising the steps of:

providing a composition comprising at least one material containing silane and at least one hydrocarbon solvent;

contacting the wood product with the composition and penetrating and diffusing the silane into the wood product; and

wherein the at least one material containing silane is methyltrichlorosilane.

12. A preservative composition comprising:

at least one material containing silane;

at least one hydrocarbon solvent that is liquid at room temperature; and

at least one material containing boron.

13. A preservative composition as set forth in claim 12 wherein the at least one material containing boron is boric anhydride.

14. A preservative composition as set forth in claim 12 wherein the at least one material containing boron is present at a concentration of 0.1 to 7 weight percent.

15. A method for protecting a wood product, comprising:

providing a composition comprising at least one material containing silane, at least one material containing boron, and at least one hydrocarbon solvent; and

contacting the wood product with the composition.

16. A method as set forth in claim 15 wherein the at least one material containing boron is boric anhydride.

17. A method as set forth in claim 15 wherein the at least one material containing boron is present in the wood product at a concentration of 0.1 to 7 weight percent.

18. A preservative composition for a wood product comprising:

at least one boron containing material;

at least one silane; and

at least one solvent containing at least one of tetrahydrofuran and a hydrocarbon.

19. A preservative composition for a wood product comprising:

at least one boron containing material;

at least one solvent containing at least one of tetrahydrofuran and a hydrocarbon; and

at least one silane present in the at least one solvent at a concentration of 1 to 3 volume percent.

20. A preservative composition for a wood product comprising:

at least one boron containing material;

at least one silane; and

at least one solvent containing at least one of tetrahydrofuran, pentane, hexane, heptane, or combinations thereof and the at least one silane is dissolved in the at least one solvent.

21. A preservative composition for a wood product comprising:

boric anhydride;

at least one silane; and

at least one solvent.

22. A preservative composition far a wood product comprising:

at least one boron containing material;

methyltrichlorosilane; and

at least one solvent.

23. A preservative composition for a wood product comprising:

at least one boron containing material adapted to be present in the wood product at a concentration of 0.1 to 7 weight percent;

at least one silane; and

at least one solvent containing at least one of tetrahydrofuran and a hydrocarbon.

24. A method for protecting a wood product comprising:

providing a composition comprising at least one boron containing material, at least one silane, and at least one solvent containing at least one of tetrahydrofuran and a hydrocarbon; and

contacting the wood product with the composition.

25. A method for protecting a wood product comprising:

providing a composition comprising at least one boron containing material, at least one silane, and at least one solvent containing at least one of tetrahydrofuran and a hydrocarbon with the at least one silane being present in the at least one solvent at a concentration of 1 to 3 volume percent; and

contacting the wood product with the composition.

26. A method for protecting a wood product comprising:

providing a composition comprising at least one boron containing material, at least one silane, and at least one solvent containing at least one of tetrahydrofuran, pentane, hexane, heptane, or combinations thereof; and

contacting the wood product with the composition.

27. A method for protecting a wood product comprising:

providing a composition comprising boric anhydride, at least one silane, and at least one solvent; and

contacting the wood product with the composition.

28. A method for protecting a wood product, comprising:

providing a composition comprising at least one boron containing material, methyltrichlorosilane and at least one solvent; and

contacting the wood product with the composition.

29. A method for protecting a wood product comprising:

providing a composition comprising at least one boron containing material, at least one silane, and at least one solvent containing at least one of tetrahydrofuran and a hydrocarbon; and

contacting the wood product with the composition such that the at least one boron containing material is present in the wood product at a concentration of 0.1 to 7 weight percent.

30. A method for protecting a wood product comprising:

providing a composition comprising methyltrichlorosilane and at least one solvent containing pentane; and

contacting the wood product with the composition.

31. A method for protecting a wood product comprising:

providing a composition comprising methyltrichlorosilane and at least one hydrocarbon solvent; and

contacting the wood product with the composition.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2014
From: DOW CORNING CORPORATION
To: PETRA INTERNATIONAL HOLDINGS, LLC
Reel/Frame 033264/0588 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 22, 2009
From: WOODHOLDINGS ENVIRONMENTAL, INC.
To: DOW CORNING CORPORATION
Reel/Frame 023267/0458 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2003
From: THOMPSON, MICHAEL M.
To: WOODHOLDINGS ENVIRONMENTAL, INC.
Reel/Frame 014695/0015 →
Continuity (2)
Provisional Application 6020974300 · Jun 6, 2000
Related Publication 20030213400A1 · Nov 20, 2003