NL8100429A - CONCENTRATED WOOD PROTECTIVE AGENT AND PRODUCT PREPARED THEREFOR FOR THE PRESERVATION OF WOOD AND WOOD MATERIALS. - Google Patents

Description

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ff.O. 29802

Concentrated wood preservative and compound to preserve it from wood and wood materials.

The present invention relates to a concentrated wood preservative and wood preservatives and wood materials prepared therefrom, respectively. those from certain weights of at least one organic chemical water-insoluble insecticide 5 and / or at least one organic chemically water-insoluble and / or organic chemically water-soluble fungicide, in combination with certain weights of at least one with water-dilutable plastic resin (calculated as a solid) and certain amounts by weight of at least one plasticizer and / or at least one water-insoluble, hydroxyl and / or ether groups-containing organic chemical solvent, certain amounts by weight of at least one non-ionic emulsifier or a non-ionic emulsifier mixture and a chemical compound which acts as a buffer or pH regulator, as well as possibly existing or existing water.

A wood preservative is already known which is prepared from a concentrated liquid, the active ingredients of which are water-insoluble insecticides and fungicides, which are dissolved in a solvent and in oils with the addition of emulsifiers, such that the finished wood preservative is used as a liquid emulsion is present (see German "Offenlegungsschrift" 2,518,416). As a fungicide, caprylates and heavy metal naphthenates are preferably used in these wood preservatives.

Such wood preservatives according to German Offengungsschrift 2,518,416 have the drawback that the addition of water produces a milky cloudy emulsion which skim after a certain period of time and therefore does not have an even distribution of the active ingredients. In some cases, a soil deposit could be observed. An effective impregnation of the wood is no longer given in these cases.

The object and object of the present invention was to find a wood preservative agent in which the organic chemical water-soluble solvent, which preferably consists of petroleum products, aromatics and the like, to a considerable percentage can be replaced by other organic chemicals and / or water, so that the organic chemical solvent can be saved or saved on the basis of petroleum products, aromatics and the like. in its share can be reduced. A segregation or 8 1 0 0 42 9

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2 it must be possible to avoid deposits on the bottom during processing of the wood preservative. Finally, the wood preservative must have a good effect. In the form of concentrates, it must be stable, transportable and can be diluted at the point of application or at the processing site to the ready-to-use concentration by simple addition of water. By maintaining certain amounts of weight and attuned weight ratios and compositions, the ready-to-use water-thinnable wood preservative must also achieve the most adequate penetration depth into the wood.

In accordance with the invention, it has been found that wood preservative concentrates and wood and wood preservative preservatives prepared therefrom based on a water-insoluble insecticide or insecticide mixture and / or a water-insoluble or water-soluble fungicide or fungicide mixture and an emulsifier meet these stated requirements. The water-dilutable wood preservative concentrates according to the invention consist of 5 to 43 parts by weight, preferably 8 to 40 parts by weight, of at least one organic chemical water-insoluble insecticide and / or at least one organic chemical, water-insoluble and / or organic chemical water-soluble fungicide, 5 to 35 parts by weight, preferably 15 to 25 parts by weight, of at least one water-dilutable synthetic resin (calculated as solid), 35 to 5 parts by weight, preferably 25 to 15 parts by weight, of at least one plasticizer and / or at least one water-insoluble organic chemical solvent containing hydroxyl groups and / or ether groups, 36 to 10 parts by weight, at preferably 25 to 15 parts by weight of at least one non-ionic emulsifier or a non-ionic emulsifier mixture, 0 to 6 parts by weight, preferably 1 to 2 parts by weight of a chemical compound used as a buffer or pH control agent works, as well as 0 to 15 parts by weight, preferably 0.001 to 7 parts by weight.

30 parts of water. In a preferred embodiment, the concentrate contains an emulsifier mixture as an emulsifier, at least one of which is an emulsifier an ethoxylated phenol and / or an ethoxylated alkyl, aryl, aryl-alkylphenol or one or more other side groups containing ethoxylated phenol and / or an ethoxylated organic acid , preferably an ethoxylated nonylphenol and / or an ethoxylated fatty acid. By the use of the emulsifier mixture, a fine distribution of the active substance is achieved and a demixing, a deposit on the bottom or a skimming is substantially prevented. The concentrate and the wood and wood preservative agent prepared therefrom contain, according to the preferred embodiment, a mixture of emulsifiers having different chain lengths of which at least one emulsifier has an ethoxylated side chain of less than 10 ethoxy groups and of which at least one other emulsifier has an ethoxylated side chain of more than 10 ethoxy groups.

According to a particularly advantageous embodiment, the concentrate contains as water-dilutable synthetic resin an alkyd resin, which has an average oil length. Notwithstanding the extensive replacement of the organic chemical solvent on a petroleum basis, the use of this synthetic resin achieves that, on the one hand, a better fixation of the active substance is achieved and, on the other hand, a film formation is enabled depending on the synthetic resin content.

According to a particularly effective embodiment or combination, the concentrate as a buffer or pH-regulating agent for adjusting the pH value contains an amine, an ammonium compound or a quaternary ammonium compound or a mixture thereof.

The insecticide used resp. insecticide mixture preferably consists of a carbamate, a phosphoric acid ester, a phosphonic acid ester, a thiophosphoric acid ester, a dithiophosphoric acid ester or a thionophosphoric acid ester, a chlorinated hydrocarbon, a pyretroid and / or from two dosulfan or from two or more of these compounds.

Preferred chlorinated hydrocarbons are dieldrin, al-drin and lindane. Of the pyretrols, all-trine, cycletrine, furethrin, tetramethrin, resmetrine, permethrin, de-kamethrin or bioresmetrine and other insecticidally active substances of the pyretrum are used.

Of the insecticidal carbamates, o-isopropoxyphenyl-N-methyl carbamate and / or o-sec.butylphenol-N-methyl carbamate are preferably used.

Insecticidal thionophosphoric acid esters are preferably used with insecticidal halogenated or halogen group-free thionophosphoric acid esters of the formula 1, preferably (diethoxy-thiophosphoryloxyimino) -phenylacetoni trile. 0,0-diethyl-0- (cyanobenzylidene-amino) thionophosphate and / or (diethoxythiophosphoryloxyimino) -2-chlorophenylacetonitrile and / or other phosphoric acid esters, preferably dimethoxy-O- (4-nitro-marolyl) -phos-35 forothioate .

As the soluble carbamates soluble in the oily solvents, alkoxyphenyl-N-alkyl carbamates of the general formula 2 and / or an alkylphenyl-N-alkylcarbamate of the general formula 3 are preferably used, wherein in each case for an alkyl radical with 1 to 4 carbon atoms, preferably 40 methyl radical and for R 1 an alkyl radical of 1 to 5 carbon atoms, 81 00 42 9

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4 preferably has an alkyl radical with 3 or 4 carbon atoms.

The water-insoluble fungicide resp. water-insoluble fungicide mixture preferably consists of a tetravalent organotin compound, a chlorinated phenol, preferably penta- or tetrachlorophenol, a 1-trityl-1,2,4-triazole of the general formula 4, wherein R for a fluorine, chlorine or bromine atom, a trifluoromethyl, nitro or cyano group or an alkyl group with not more than 4 carbon atoms and n for the numbers 1 or 2, as well as their salts of organic or inorganic acids or an N-cyclohexyl -diazeniumdioxy) compound (respective salt of the N-nitroso-N-cyclohexylhydroxylamine), preferably the aluminum compound, and / or N, N-dimethyl-N'-phenyl-N1- (fluoro-dichloromethylthio) sulfamide and / or N, N-dimethyl-N'-p-tolyl-N, - (dichlorofluoromethylthio) sulfamide, or from two or more of these compounds.

As oil-soluble tetravalent, fungicidal organotin compounds, for example, tributyltin benzoate, tris (tributyltin) phosphate and bis (tributyltin) oxide can be used.

Preferred water-soluble fungicides are one or more water-soluble phenolates, preferably chlorophenolates and / or one or more water-soluble metal salts of a (N-cyclohexyl diazenium dioxy compound (or salt of the N-nitroso-N- cyclohexylhydroxylamine).

As water-insoluble, organic chemical solvents containing hydroxyl groups and / or ether groups, water-insoluble polyols or ethers, respectively. esters of polyols, preferably glycol ethers, are used.

A plasticizer which is liquid at room temperature or a liquid plasticizer mixture is used as a plasticizer.

Preferably, as a plasticizer, at least one alkyl, aryl or arylalkyl phthalate, preferably dibutyl, dioctyl and benzyl butyl phthalate, alkyl phosphate or phosphoric acid esters, preferably tributyl phosphate or an adipate, preferably di- (2-ethylhexyl) - adipate, stearate and / or oleate, alkyl stearate or alkyl oleate, preferably butyl oleate, butyl stearate or amyl stearate or a liquid glycerol ester.

For certain formulations, it may be beneficial to use anti-foaming agents such as silicone anti-foaming agents or alkyl phosphates, preferably tri-n-butyl phosphate.

The ready-to-use agent prepared from the wood preservative concentrate for the preservation of wood and wood materials consists of 10 to 30 wt.%, Preferably 15 to 25 wt.% Of the content. centrate (calculated as anhydrous concentrate) with 90 to 70% by weight, preferably 85 to 75% by weight, of water.

The wood preservative can be applied to the wood by methods known per se, preferably by ironing, spraying, spraying or by using impregnation methods, for example dipping, pressure and / or vacuum methods.

The invention further relates to a method for the preparation of the wood preservative concentrate and the agent prepared therefrom for the preservation of wood and wood materials. According to this method, the organic chemical solvent or mixture of solvents containing the plasticizer or the plasticizer mixture and / or the water-insoluble hydroxyl and / or ether groups becomes soluble insecticide and / or fungicide and the non-ionic emulsifier or the non-ionic emulsifier mixture at temperatures of 10 to 80 ° C, preferably 30 to 160 ° C and at pressures of 0.5332 to 1.1332 bar, preferably 0.79999 to 1.0532 bar, in the presence or absence of the other substances or components of these substances are treated until a solution is formed, the other substances including the buffer and, if appropriate, water being added to the solution, preferably only afterwards.

Examples of water-curable wood preservative concentrates with insecticidal and fungicidal activity. Lindane 2 wt.% 25 aldrin 1 wt.% Pentachlorophenol sodium 35 wt.% Water-dilutable alkyd resin 14 wt.% Butyl glycol 6 wt.% Dibutyl phthalate 20 wt.% 30 ethoxylated nonylphenol: ethoxylation degree 6 7 wt% 10 7 wt% 14 7 wt% amine 1 wt% 35 Use: 20% concentrate - 80% water.

The ready-to-use wood preservative was obtained by mixing 20 wt% of the concentrate with 80 wt% water.

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0,0-diethyl-0- (cyanobenzylideneamino) - 8 wt.% Thionophosphate (foxim) pentachlorophenol sodium 25 wt.% 5 water-dilutable alkyd resin 17.5 wt.% Butyl glycol 7.5 wt.% Dibutyl phthalate 20.0 wt% ethoxylated nonylphenol: degree of ethoxylation 6 7.0 wt% 10 10 7.0 wt% 12 7.0 wt% amine 1.0 wt%

Use: 20% concentrate - 80% water.

The ready-to-use wood preservative was obtained by mixing 20 wt.% Of the concentrate with 80 wt.% Water.

III

lindane 4.0 wt% (N-cyclohexyldiazeniumdioxy) potassium 5.0 wt% 20 water-dilutable alkyd resin 14.0 wt% butyl glycol 6.0 wt% ethyl glycol 22.5 wt% ethyl glycol acetate 32.5 wt % ethoxylated nonylphenol: degree of ethoxylation 6 5.0 wt% 10 5.0 wt% 14 5.0 wt% amine 1.0 wt%

Use: 15% concentrate - 85% water.

The ready-to-use wood preservative was obtained by mixing 15% by weight of the concentrate with 85% by weight of water.

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Claims (13)

Wood preservative concentrate and agent prepared therefrom for the preservation of wood and wood materials based on a water-insoluble insecticide or insecticide mixture and / or a water-insoluble fungicide or fungicide mixture and an emulsifier, characterized in that it is water-dilutable wood preservative concentrate of 5 to 43 parts by weight, preferably 8 to 40 parts by weight, 10 of at least one organic chemical water-insoluble insecticide and / or at least one organic chemical water-insoluble and / or organo-chemically water-soluble fungicide, 5 to 35 parts by weight, preferably 15 to 25 parts by weight, 15 of at least one water-dilutable synthetic resin (calculated as a solid), 35 to 5 parts by weight, preferably 25 up to 15 parts by weight of at least one plasticizer and / or at least one water-insoluble organic chemical solvent containing 20 hydroxyl groups and / or ether groups, 36 to 10 parts by weight, preferably 25 to 15 parts by weight, of at least a non-ionic emulsifier or a non-ionic emulsifier mixture, from 0 to 6 parts by weight, preferably from 1 to 2 parts by weight, of a chemical compound which acts as a buffer or a pH adjusting agent, and 30. up to 15 parts by weight, preferably 0.001 to 7 parts by weight, of water. 2. Wood preservative concentrate and wood and wood preservative agent prepared therefrom according to claim 1, characterized in that the emulsifier concentrate contains an emulsifier mixture, of which at least one emulsifier is an ethoxylated phenol and / or an ethoxylated alkyl-, aryl or arylalkylphenol or one or more other side groups containing ethoxylated phenol and / or an ethoxylated organic acid, preferably an ethoxylated nonylphenol and / or an ethoxylated fatty acid. 8100429 Wood preservative concentrate and wood and wood preservative agent prepared therefrom according to claims 1 and 2, characterized in that the concentrate and the wood and wood preservative agent prepared therefrom contain a mixture of emulsifiers 5, of which at least one emulsifier has an ethoxylated * side chain of less than 10 ethoxy groups and at least one other emulsifier has an ethoxylated side chain of more than 10 ethoxy groups. Wood preservative concentrate and wood preservative and wood preservative material prepared therefrom according to claims 1 to 3, characterized in that the water-dilutable synthetic resin concentrate contains an alkyd resin having an average oil length. Wood preservative concentrate and wood preservative and wood preservative material prepared therefrom according to claims 1 to 4, characterized in that the concentrate as buffer or pH-regulating agent for adjusting the pH value is an amine, an ammonium compound or a quaternary ammonium compound or a mixture thereof. Wood preservative concentrate and wood preservative and wood materials prepared therefrom according to claims 1 to 5, characterized in that the insecticide resp. the insecticide mixture consists of a carbamate, a phosphoric acid ester, a phosphonic acid ester, a thiophosphoric acid ester, a dithiophosphoric acid ester or a thionophosphoric acid ester, a chlorinated hydrocarbon, a pyretroid and / or endosulfan or two or more of these compounds. Wood preservative concentrate and agent prepared therefrom for preserving wood and wood materials according to claims 1 to 6, characterized in that the water-insoluble fungicide resp. the water-insoluble fungicide mixture from a tetravalent organotin compound, a chlorinated phenol, preferably penta- or tetrachlorophenol, a 1-trityl-1,2,4-triazole of the general formula 4, wherein R 30 represents a fluorine , chlorine or bromine atom, a trifluoromethyl, nitro or cyano group or an alkyl group with up to 4 carbon atoms and n are the numbers 1 or 2, as well as their salts of organic or inorganic acids or a (N-cyclohexyl diazeniumdioxy) metal compound (or salt of the N-nitroso-N-cyclohexylhydroxylamine), preferably its aluminum compound and / or N, N-dimethyl-N, -phenyl-N, - (fluorodichloromethylthio) -sulfamide and / or NjN- dimethyl-N'-p-tolyl-N'-Cdichlorofluoromethylthio) sulfamide or two or more of these compounds. Wood preservative concentrate and agent prepared therefrom for the preservation of wood and wood materials according to one or more of the 8100429 claims 1 to 6, characterized in that as water-soluble fungicide one or more water-soluble phenolates, preferably chlorophenolates and / or one or more water-soluble metal salts of a (N-cyclohexyldiazeniumdioxy) compound (or salt of the N-nitroso-N-cyclohexylhydroxylamine) are used. Wood preservative concentrate and wood preservative and wood materials prepared therefrom according to claims 1 to 8, characterized in that as water-insoluble organic chemical solvents containing hydroxyl groups and / or ether groups, water-insoluble polyols or ethers or . esters of polyols, preferably glycol ethers, are used. Wood preservative concentrate and wood and wood preservative agent prepared therefrom according to claims 1 to 9, characterized in that a plasticizer which is liquid at room temperature or a liquid mixture of plasticizers is used as the plasticizer. Wood preservative concentrate and wood and wood preservative agent prepared therefrom according to claims 1 to 10, characterized in that as a plasticizer at least one alkyl, aryl or arylalkyl phthalate, preferably dibutyl, dioctyl and benzyl butyl phthalate. late, alkyl phosphate or phosphoric acid esters, preferably tributyl phosphate or an adipate, preferably di- (2-ethylhexyl) adipate, stearate and / or oleate, alkyl stearate or alkyl oleate, preferably butyl oleate, butyl stearate or amyl stearate or a liquid glycerol ester is. 12. Wood preservative concentrate and wood preservative material prepared therefrom according to claims 1 to 11, characterized in that the ready-to-use agent prepared from the wood preservative concentrate for preserving wood and wood materials consists of 10 to 30% by weight, preferably 15 to 25% by weight, of the concentrate (calculated as anhydrous concentrate) with 90 to 70% by weight, preferably 85 to 75% by weight, of water. Process for preparing the wood preservative concentrate according to claims 1 to 11, characterized in that the organic chemical solvent or mixture containing the plasticizer or the mixture of plasticizers and / or water-soluble hydroxy and / or ether groups solvent-soluble insecticide and / or fungicide 40 and the non-ionic emulsifier or mixture of non-ionic emulsifier 8100429 tower at temperatures from 10 to 80 ° C, preferably 30 to 60 ° C, and at pressures of 50 ° C, 5332 to 1.1332 bar, preferably 0.7999 to 1.0532 bar, in the presence or absence of the other substances or constituents of these substances are treated for a long time, until a solution is formed, after which the other substances with including the buffer as well as optional water. 10 ====== 8 1 0 0 42 9 «9k. * AS CN YY— ^ ^> p — o — n = c - (/ \ c2wbo ^ N = / l_ 0 / V-0 —c — NH — Ri ^ -o — r2 A 0 ^^ - 0 — C - NH —R} r2 A. II-B o - "- o (j-Rh 8 1 0 0 4 2 9