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EP-4736642-A2 - WOOD TREATMENT SOLUTIONS CONTAINING FUNGICIDES AND TERTIARY ALKANOLAMINES AND RELATED METHODS, WOOD PRODUCTS AND COMPOSITION FOR PROTECTION AGAINST FUNGAL ORGANISMS

EP4736642A2EP 4736642 A2EP4736642 A2EP 4736642A2EP-4736642-A2

Abstract

The present invention provides a solution and related composition of matter and methods which synergistically improves a fungicide's effectiveness in resisting undesired fungal growth. The invention also provides wood and wood products which have been treated with the solution, method or compound.

Inventors

  • BOHN, Justin J
  • CLAWSON JR, Ronald W
  • CUTLER, Kenneth A

Assignees

  • KOP-COAT, INC.

Dates

Publication Date
20260506
Application Date
20191001

Claims (15)

  1. A fungal organism controlling wood treatment solution comprising a synergistic combination of a tertiary alkanolamine, at least one fungicide selected from the group consisting of 3-iodoprop-2-yn-1-yl butylcarbamate (IPBC), propiconazole, didecyl dimethylammonium bicarbonate/carbonate, chlorothalonil, methylene bisthiocyanate, fludioxonil, N-octylisothiazolinone, thiabendazole, carbendazim, penflufen, copper monoethanolamine, copper carbonate, copper napthenante, copper 8-quinilinolate, disodium octaborate tetrahydrate and azoxystrobin, and a solvent, wherein said tertiary alkanolamine is selected from the group consisting of about 0.050 % (m/m) to 0.415 % (m/m) 2-(dimethylamino)-ethanol and about 0.092 % (m/m) to 10.000 % (m/m) 3-hydroxy-1-methylpiperidine.
  2. The solution of claim 1 including said solution containing a surfactant.
  3. The solution of claim 2, wherein said surfactant is nonylphenol ethoxylate.
  4. The solution of any one of claims 1 to 3 including said solution containing 1,4 butanediol.
  5. The solution of any one of claims 1 to 4 including said tertiary alkanolamine being 2-(dimethylamino)-ethanol present in the amount of about 0.050 % (m/m).
  6. The solution of claim 5 including said solution having an efficacy score of at least 35 percent.
  7. The solution of any one of claims 1 to 4 including said tertiary alkanolamine being 3-hydroxy-1-methylpiperidine present in the amount of about 0.184 % (m/m).
  8. A method of protecting wood against fungal organisms comprising providing a solution having a synergistic combination of a tertiary alkanolamine, at least one fungicide selected from the group consisting of 3-iodoprop-2-yn-1-yl butylcarbamate (IPBC), propiconazole, didecyl dimethylammonium bicarbonate/carbonate, chlorothalonil, methylene bisthiocyanate, fludioxonil, N-octylisothiazolinone, thiabendazole, carbendazim, penflufen, copper monoethanolamine, copper carbonate, copper napthenante, copper 8-quinilinolate, disodium octaborate tetrahydrate, and azoxystrobin, and a solvent, and applying said solution to wood, wherein said tertiary alkanolamine is selected from the group consisting of about 0.050 % (m/m) to 0.415 % (m/m) 2-(dimethylamino)-ethanol and about 0.092 % (m/m) to 10.000 % (m/m) 3-hydroxy-1-methylpiperidine.
  9. The method of claim 8 including said solution containing a surfactant and 1,4 butanediol.
  10. Treated wood comprising wood which has been treated by the solution of any one of claims 1 to 7.
  11. A fungal organism controlling wood treatment composition comprising a synergistic combination of a tertiary alkanolamine, and at least one fungicide selected from the group consisting of 3-iodoprop-2-yn-1-yl butylcarbamate (IPBC), propiconazole, didecyl dimethylammonium bicarbonate/carbonate, chlorothalonil, methylene bisthiocyanate, fludioxonil, N-octylisothiazolinone, thiabendazole, carbendazim, penflufen, copper monoethanolamine, copper carbonate, copper napthenante, copper 8-quinilinolate, disodium octaborate tetrahydrate, and azoxystrobin, wherein said tertiary alkanolamine is selected from the group consisting of 2-(dimethylamino)-ethanol and 3-hydroxy-1-methylpiperidine.
  12. The composition of claim 11 including: (i) said tertiary alkanolamine being 2-(dimethylamino)-ethanol present in the amount of about 0.050 % (m/m) to 0.415 % (m/m); or (ii) said tertiary alkanolamine being 3-hydroxy-1-methylpiperidine present in the amount of about 0.092 % (m/m) to 10.000 % (m/m).
  13. The composition of claim 11 or 12 including said composition having a surfactant, for example said surfactant being nonylphenol ethoxylate.
  14. The composition of any one of claims 11 to 13 including said composition containing 1,4 butanediol.
  15. The composition of any one of claims 11 to 14 including said tertiary alkanolamine being 2-(dimethylamino)-ethanol present in the amount of about 0.050 % (m/m).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to synergistic wood treatment combinations of fungicides and tertiary alkanolamines as well as related methods, wood products and compositions to provide enhanced protection against fungal organisms. It also relates to such compositions and formulants containing unique combinations of inert co-formulants with biologically significant fungicides. 2. Description of the Prior Art Wood is one of the best structural materials for the construction of buildings because of its strength, ease of processing and relatively low cost. However, wood and wood-based materials, including cellulosic composites and plastic-wood composites, are susceptible to attack from various fungal organisms. Fungal attack can result in cosmetic damage (stain, mold and mildew) and/or structural degradation (decay) to both solid wood and wood-based composites. Mold organisms, in addition to altering the properties and marring the appearance of wood, can present a health hazard in indoor environments as certain mold spores have the potential to be human respiratory allergens. Sapstain is a particular problem for freshly sawn green lumber. Although attack by sapstain fungi does not generally result in the reduction of strength properties, sapstain can seriously degrade the value of lumber by impairing its appearance. Preservative chemicals have been used since antiquity to prevent the onset of mold, stain and decay to wood in service. In recent times, the use of some wood preserving chemicals has been restricted or curtailed due to concerns about their safety to humans and their effects on the environment. Cost effectiveness of preservative treatments is also a major consideration as wood ultimately competes with non-cellulosic construction materials including steel, plastic and concrete. Mold, mildew, decay and rot have individually or in combination resulted in substantial destruction of wood and products made therefrom. Providing protection for wood against fungal attack has been an ongoing problem with many solutions having been suggested. See for example, U.S. Patent 7,056,919 and 4,950,685. Despite the numerous materials which have been employed in resisting undesired fungal organism attack on wood, there remains a very real and substantial need for improved fungicides which will provide enhanced protection for wood and wood products. The present invention provides synergistic formulations of fungicides which are employable with tertiary amino alcohols (tertiary alkanolamines) to provide a synergistic increase in efficacy against fungal organisms. SUMMARY OF THE INVENTION The present invention provides a fungal organism controlling solution and related methods, treated wood and compositions which comprise a tertiary alkanolamine, at least one fungicide and a solvent, such as water. The tertiary alkanolamine preferably is selected from the group consisting of 2-Dimethylamino-2-methyl-1-propanol, 3 hydroxy-1-methylpiperidine and 2-dimethylamino-ethanol. The solution may contain coformulants which do not alter the performance of the basic technology. The solution may contain a surfactant which is preferably Nonylphenol ethoxylate. It may also contain as a solvent 1,4 butanediol characterized by the property of being water miscible. The present invention provides a synergistic combination of materials which will effectively enhance the performance of fungicides. The invention provides such synergistic effects through a solution and related composition, methods and the wood products treated by the solution. It is an object of the present invention to provide a fungal organism controlling solution, composition and method which synergistically provides a tertiary alkanolamine in combination with one or more fungicides and water or organic solvent as a solvent to provide improved resistance to fungal organisms. It is a further object of the present invention to provide such a solution, composition and method which may be employed with a large number of fungicides to provide through synergism enhanced resistance to fungal deterioration. It is yet another object of the present invention to provide such a system which is economical to employ. It is a further object of the present invention to provide such superior results as verified by K-200 Greenwood Biossay and extensive testing of various combinations of fungicides with different tertiary amine alkanolamines. It is a further object of the present invention to provide such a system which may be employed with different tertiary alkanolamines and a wide variety of fungicides to produce substantially improved results through synergism. It is yet another object of the present invention to produce wood which has been treated by the solution, compound or method of the present invention. It is yet another object of the present invention to provide such a system which will produce improved efficacy as confirmed by exten