(EP-351195) A method of preparing a fungicidal composition, particularly for use in treating lumber, comprises the steps of suspending a primary fungicide in a strong solvent system; adding a selected strong organic acid to the suspension to achieve a solution; and adding a surfactant system and a secondary fungicide to the solution. A fungicidal composition is also claimed, containing a primary and a secondary fungicide, both fungicides being in a true solution at high concentration, but on dilution the primary fungicide being present as an aqueous solution and the secondary fungicide as an emulsiono or a suspension.
(EP-351195) 1. A method of preparing a fungicidal composition comprising the steps of: suspending a primary fungicide in a strong solvent system; adding a selected strong organic acid to the suspension to achieve a solution; and adding a surfactant system and a secondary fungicide to the solution. 2. A method as claimed in Claim 1 wherein said primary fungicide is selected from the group consisting of substituted benzimidazoles, chemical precursors of substituted benzimidazoles, substituted morpholinium compounds, substituted triazole compounds, substituted pyrimidine compounds, substituted imidazole compounds, substituted thiazole compounds, substituted pyridine compounds, substituted quinoxaline compounds, substituted triazine compounds, substituted guanidine compounds, substituted thiadiazole compounds, and zinc or copper chelated with 8-Hydroxyquinoline; or known chemical equivalents thereof. 3. A method as claimed in Claim 1 or Claim 2 wherein said strong organic acid is selected from organic sulphonic acids organic sulphuric acids, trifluoro acetic acid and salicylic acid, said acid being selected so as to solubilize the selected fungicide to an optimally desired degree. 4. A method as claimed in any one of Claims 1 to 3 wherein said strong solvent has solubility parameters of polar bonding greater than substantially 2.5, and hydrogen bonding greater than substantially 2.0, according to the Hansen solubility parameter system. 5. A method as claimed in any one of the preceding claims wherein said surfactant system is selected from the group consisting of alkyl phenol ethoxylates, aliphatic alcohol ethoxylates, copolymers of ethylene oxide and propylene oxide, alcohol esters, polyalcohol polyesters, amine ethoxylates, ester ethoxylates, and phosphate esters. 6. A method as claimed in any one of the preceding claims wherein said surfactant system has a combined hydrotrope/lipotrope balance (HLB) of between substantially 7 and substantially 15. 7. A method as claimed in any one of the preceding claims wherein said solvent system comprises one or more primary solvents selected from the group consisting of N-methyl pyrrolidone, cyclohexanone, isophorone, butyrolactone, 1,2 propylene carbonate, dioxane, tetrahydrofuran, 1,3 dimethyl 1-2-imidazolidone, tetra methyl urea, dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide, dimethyl-2-pyrrolidone, n-ethyl pyrrolidone, n-methyl-2-piperidone and n-methyl caprolactam. 8. A method as claimed in any one of the preceding claims wherein said solvent system includes a co-solvent selected from the group consisting of monomeric or polymeric glycols, alcohols, glycol ethers, alcohol esters, glycol esters and aromatic solvents. 9. A method as claimed in any one of the preceding claims wherein said secondary fungicide is selected from the group consisting of substituted benzimidazoles, chemical precursors of substituted benzimidazoles, substituted morpholinium compounds, substituted triazole compounds, substituted pyrimidine compounds, substituted imidazole compounds, substituted thiazole compounds, substituted pyridine compounds, substituted quinoxaline compounds, substituted triazine compounds, substituted granidine compounds, substituted thiadiazole compounds, zinc or copper chelated with 8-Hydroxyquinoline, alkyl dimethyl amines, alkyl dimethyl benzyl ammonium compounds, alkyl dimethyl benzyl ammonium compounds having substituents on the benzene ring, dialkyl dimethyl ammonium compounds, and substituted thiazoles; or known chemical equivalents thereof. 10. A method as claimed in any one of the preceding claims including the further step of adding an insecticide to the solution. 11. A method as claimed in any one of the preceding claims wherein said fungicides are of relatively low toxicity. 12. A method of preparing a fungicidal composition, substantially as hereinbefore described with reference to the example. 13. A fungicidal composition, comprising: a primary fungicide and a secondary fungicide; together with a solvent/surfactant system, whereby said primary and secondary fungicides are in a true solution while said composition is relatively concentrated, but whereby when said composition is diluted said primary fungicide is principally present as an aqueous suspension and said secondary fungicide is principally present in the form of an emulsion or as a suspension. 14. A composition as claimed in Claim 13 wherein said primary fungicide is selected from the group consisting of substituted benzimidazoles, chemical precursors of substituted benzimidazoles, substituted morpholinium compounds, substituted triazole compiounds, substituted pyrimidine compounds, substituted imidazole compounds, substituted thiazole compounds, substituted pyridine compounds, substituted quinoxaline compounds, substituted triazine compounds, substituted guanidine compounds, substituted thiadiazole compounds, and zinc or copper chelated with 8-Hydroxyquinoline which has been further treated with an organic sulphonic acid, an organic sulphuric acid, trifluoro acetic acid or salicylic acid; or known chemical equivalents thereof. 15. A composition as claimed in Claim 13 or 14 wherein said strong organic acid is an organic sulphonic acid or an organic sulphuric acid. 16. A composition as claimed in any one of Claims 13 to 15 wherein said strong solvent has solubility parameters of polar bonding greater than substantially 2.5, and hydrogen bonding greater than substantially 2.0, according to the Hansen solubility parameter system. 17. A composition as claimed in any one of Claims 13 to 16 wherein said surfactant system is selected from the group consisting of alkyl phenol ethoxylates, aliphatic alcohol ethoxylates, copolymers of ethylene oxide and propylene oxide, alcohol esters, polyalcohol polyesters, amine ethoxylates, ester ethoxylates, and phosphate esters. 18. A composition as claimed in any one of Claims 13 to 17 wherein said surfactant system has a combined hydrotrope/lipotrope balance (HLB) of between substantially 7 and substantially 15. 19. A composition as claimed in any one of Claims 13 to 18 wherein said solvent system comprises one or more primary solvents selected from the group consisting of N-methyl pyrrolidone, cyclohexanone, isophorone, butyrolactone, 1, 2 propylene carbonate, dioxane, tetrahydrofuran, 1,3 dimethyl 1-2-imidazolidone, tetra methyl urea, dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide, dimethyl-2-pyrrolidone, n-ethyl pyrrolidone, n-methyl-2-piperidone and n-methyl caprolactam. 20. A composition as claimed in any one of Claims 13 to 19 wherein said solvent system includes a co-solvent selected from the group consisting of monomeric or polymeric glycols, alcohols, glycol ethers, alcohol esters, glycol esters and aromatic solvents. 21. A composition as claimed in any one of claims 13 to 20 wherein said secondary fungicide is selected from the group consisting of substituted benzimidazoles, chemical precursors of substituted benzimidazoles, substituted morpholinium compounds, substituted triazole compounds, substituted pyrimidine compounds, substituted imidazole compounds, substituted thiazole compounds, substituted pyridine compounds, substituted quinoxaline compounds, substituted triazine compounds, substituted guanidine compounds, substituted thiadiazole compounds, zinc or copper chelated with 8-Hydroxyquinoline, alkyl dimethyl amines, alkyl dimethyl benzyl ammonium compounds, alkyl dimethyl benzyl ammonium compounds having substituents on the benzene ring, dialkyl dimethyl ammonium compounds, and substituted thiazoles; or known chemical equivalents thereof. 22. A composition as claimed in any one of Claims 13 to 21 also including an insecticide. 23. A composition as claimed in any one of Claims 13 to 22 wherein said fungicides are of relatively low toxicity. 24. A fungicidal composition substantially as hereinbefore described with reference to the example. 25. A method of treatment of lumber and/or protecting lumber relatively long term, which method comprises treating lumber with a fungicidal composition in accordance with any one of Claims 13 to 23 and/or prepared by a method in accordance with any one of Claims 1 to 11.
(EP-351195) LEGAL DETAILS FOR EP0351195 Actual or expected expiration date=2009-07-11 Legal state=DEAD Status=EXPIRED Event publication date=1989-07-11 Event code=EP/APP Event indicator=Pos Event type=Examination events Application details Application country=EP EP89307047 Application date=1989-07-11 Standardized application number=1989EP-0307047 Event publication date=1990-01-17 Event code=EP/A2 Event type=Examination events Application published without search report Publication country=EP Publication number=EP0351195 Publication stage Code=A2 Publication date=1990-01-17 Standardized publication number=EP-351195 Event publication date=1990-01-17 Event code=EP/AK Event indicator=Pos Event type=Designated states Designated contracting states: Benannte vertragsstaaten AT BE CH DE ES FR GB GR IT LI LU NL SE Event publication date=1990-12-19 Event code=EP/A3 Event indicator=Pos Event type=Examination events Published search report Publication country=EP Publication number=EP0351195 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code=EP/AK Event indicator=Pos Event type=Designated states Designated contracting states: Benannte vertragsstaaten AT BE CH DE ES FR GB GR IT LI LU NL SE Event publication date=1995-09-06 Event code=EP/26N Event indicator=Pos Event type=No opposition filed Event type=Event indicating In Force No opposition filed Kein einspruch eingelegt Event publication date=2009-07-11 Event code=EP/EEDX Event indicator=Neg Event type=Event indicating Not In Force Patent has expired MEMBER STATE LEGAL DETAILS FOR AT111300 Actual or expected expiration date=1996-07-11 Legal state=DEAD Status=LAPSED Corresponding cc: Designated or member state=AT Corresponding appl: AT89307047 Application date in the designated or member state=1989-07-11 Application number in the designated or member state=1989AT-0307047T Corresponding cc: Designated or member state=AT Corresponding pat: AT111300 Publication stage code in the designated or member state=T Publication date in the designated or member state=1994-09-15 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