FI72670B - TRAESKYDDSMEDELSKONCENTRAT OCH DAERAV FRAMSTAELLT MEDEL FOER IMPREGNERING AV TRAE OCH TRAEMATERIAL. - Google Patents

Abstract

1. Wood preservative concentrate consisting of an emulsion or solution of I. 5-50, preferably 10-35 parts by weight a) of a not easily volatilized solvant (mixture) with a flashpoint over 30, preferably over 55 degrees C, b) of a water-insoluble insecticide (mixture) of a carbamate, a phosphoric acid ester, a thiophosphoric acid ester, a dithiophosphoric acid ester or a thionophosphoric acid ester, a chlorimated hydrocarbon, a pyrethroid and/or of endosulfan and/or of water-insoluble fungicide (mixture) of a tetravalent organotin compound, an ester of a chlorinated phenol, a 1-trityl-1,2,4-triazole of the general formula see diagramm : EP0035096,P9,F2 in which R stands for a fluorine, chlorine or bromine atom, a trifluoromethyl-, nitro- or cyano-group, an alkyl group with up to 4 carbon atoms and _n has the value 1 or 2, and their salts with organic or inorganic acids, a salt of the N-nitroso- N-cyclohexylhydroxylamine or (N-cyclohexyl-diazeniumdioxy)- metal compound, preferably of an aluminium compound, a N,N-dimethyl-N'- phenyl-N'-(fluorodichloromethyl-thio)-sulphamide and/or N,N-dimethyl-N'-p-tolyl-N'- (di-chlorofluoromethylthio)-sulphamide, 2,5- dimethyl-furan-3-carboxylic acid anilide or cyclohexylamide or N-cyclohexyl-N-methoxy-2, 5-dimethylfuran-3-carboxylic- acid amide and/or 1-(p-chlorophenoxy)-3,3-dimethyl-1-(1,2,4,-triazolyl)- 2-butanone, II. 95-50, preferably 90-65 parts by weight, c) of a non-ionic emulsifier (mixture) of an ethoxylated phenol-, an ethoxylated alkyl-, aryl-, arylalkyl- phenol or an ethoxylated phenol containing one or more other side groups, an ethoxylated organic acid, preferably an ethoxylated nonylphenol and/or an ethoxylated fatty acid and d) a water-soluble cationic wetting agent (mixture) or solubilising agent of a fungicidally active arylalkylammonium compound, preferably a trialkylarylalkylammonium compound and/or a fungicidally active tertiary amine salt and, if required, water.

Description

72670

Wood preservative concentrates and preparations therefor for impregnation of wood and wood Träskyddsmedelskoncentrat och därav framställt medel för impregnering av trä och trämaterial

The invention relates to a wood preservative concentrate and a substance prepared therefrom for impregnating wood and wood material, which concentrate is based on an organic water-insoluble solvent or solvent mixture and at least one water-insoluble organic solvent or solvent mixture insecticide or insecticide mixture and / or fungicide mixture and / or fungicide mixture. as well as an emulsifier. According to the invention, the wood preservative concentrate consists of a water-dilutable emulsion or solution containing certain amounts by weight of an organic, water-insoluble solvent or solvent mixture having at least one organic insecticide or insecticide mixture soluble in the organic solvent or solvent mixture and / or at least one organic solution. or a solvent-soluble organic fungicide or fungicide mixture or liquid insecticides and / or liquid fungicides at room temperature and in certain amounts by weight of a mixture of at least one non-ionic emulsifier or non-ionic emulsifier mixture of organic, non-ionic water a wetting agent or vast, a solubilizing agent or an ionogenic, cationic wetting agent mixture or a mixture of solubilizing agents, and optionally water.

A wood preservative is already known which is prepared from a liquid concentrate whose active ingredients are water-insoluble insecticides and fungicides dissolved in a solvent and oils by adding emulsifiers so that the finished wood preservative is present as an easy-to-emulsion (cf. DE 72670). application publication 25 18 416). Heavy metal caprylates and naphthenates are preferably used as fungicides in this wood impregnating agent.

Such wood preservatives according to DE-A-25 18 416 have the disadvantage that the addition of water results in the formation of a milky turbid emulsion which separates after a certain time and is thus unevenly distributed. In several cases, bottom sediment could be detected. In these cases, the wood can no longer be effectively impregnated.

GB patent 1,253,542 discloses a wood preservative which, within certain limits, is dilutable with water and which has the advantage, in particular, of its reduced tendency to flash when sprayed.

However, according to the reference, it is a ready-to-use wood preservative and not, as in the present application, a seal from which only the wood preservative itself must be manufactured.

The wood preservative according to GB 1 253 542 comprises a very low concentration emulsifier and therefore the stability of the substance is very low. These are, according to the explanation (p. 2, lines 8 ... 11), compositions which are not substantially longer stable than is required for spraying. With regard to the concentrate or mixture preparation according to the invention, e.g. using a higher emulsifier content, a thermodynamically stable microemulsion characterized by its brightness.

It is an object of the invention to provide a wood impregnation agent in which an organic, water-insoluble solvent, preferably based on petroleum products, aromatics and the like, can be replaced by a significant percentage with water so that the organic solvent can be largely dispensed with or reduced. Decomposition or bottom precipitation should be largely eliminated when handling the wood preservative. Finally, the wood preservative should be very effective. It should be storage-stable, transportable in the form of seals, and should be able to be diluted at a point of use or point of sale to a usable concentration by simply adding water. By adhering to the specified weight amounts and the agreed weight ratios and compositions, the ready-to-use, water-dilutable wood preservative should also have as sufficient a penetration depth into the wood as possible.

According to the invention, it has been found that the wood preservative concentrate and the substance made therefrom for impregnating wood and wood meet these requirements, the concentrate containing 5 to 50 parts by weight, preferably 10 to 35 parts by weight, of an organic, water-insoluble solvent or a solvent mixture comprising at least one organic insecticide or insecticide mixture soluble in the organic solvent or solvent mixture and / or at least one organic fungicide or fungicide mixture soluble in the organic solvent or solvent mixture or a liquid insecticide and / or fungicide at room temperature, and 95 to 50 parts by weight , preferably 90 to 65 parts by weight of a liquid mixture containing at least one non-ionic emulsifier or non-ionogenic emulsifier mixture for an organic, water-insoluble solvent or solvent mixture and at least one water-soluble, ionic, cationic wetting agent or the like, a solubilizer or an ionic, cationic wetting agent mixture, or vast, a mixture of solubilizing agents, and possibly water.

More specific objects of the invention appear from the appended claims.

4,72670

Depending on the place of use, area of use and the like, the wood preservative concentrate according to the invention may be anhydrous or may contain an additional amount of water. To reduce transport costs, anhydrous wood preservative concentrate or wood preservative concentrate containing only small amounts of water is preferred. The wood preservative concentrate prepared according to the invention has the advantage that it can be prepared, by diluting it with water, into a ready-to-use wood impregnating agent, preferably organic . Thus, the proportion of petroleum-based organic solvent can be largely dispensed with or reduced. Finally, decomposition or bottom precipitate or wood preservative in the pasture as well as in the ready-to-use wood impregnant and its treatment are largely eliminated.

As the water-soluble wetting agent or vast, solubilizing agent or wetting agent mixture or mixture of solubilizing agents, at least one water-soluble wetting agent or vast, water-soluble solubilizing agent having a fungicidal effect is used.

This embodiment improves the effectiveness of the wood impregnating agent.

The water-soluble wetting agent or water-soluble solubilizer is a fungicidally active arylalkylammonium compound, preferably a trialkylarylalkylammonium compound and / or a fungicidally active tertiary amine salt. By means of this preferred embodiment, it is provided that, within the above-mentioned weight ratios, the impregnating agent is an optically clear emulsion in the visible light wavelength range, or is dissolved almost near clear. As the fungicidal, ionogenic, cationic wetting agent, a benzyldimethyl- (C 1-10) C 1-6 alkylammonium compound containing halogen, nitrate, sulphate and / or acetate ions and / or or as a fungicidally active tertiary amine salt of the group (dimethyl- (C 1-10 * C 1-6) -alkyl) NH) + X- and or of the group (methyl-di (C 1-10 · C 1 -C 6 alkyl) NH) + X ", wherein X" represents halogen, nitrate, sulphate and / or acetate ions. In the above notation, (C 10 *** C 16) alkyl means that the alkyl radical may have a chain length C 10 · Cmax c16 'whereby compounds having an alkyl radical of up to 18 carbon atoms may also be mixed and used in mixtures with benzyldimethylalkylammonium compounds in which is a C10 ·· * C16 ~ alkyl residue.

According to a preferred embodiment, the weight ratio of ionic, cationic wetting agent or wetting agent mixture to nonionic emulsifier or wetting agent emulsifier mixture is 1:20 to 20: 1, preferably 1: 5 to 5: 1.

In this embodiment, together with the wetting agent used according to the invention, it is possible that even when diluted with water, the impregnating agent forms an optically clear emulsion in the visible light waveband or is dissolved almost clear.

The emulsifier used is an ethoxylated phenol and / or an ethoxylated alkyl, aryl, arylalkylphenol or an ethoxylated phenol and / or an ethoxylated organic acid containing one or more other side groups, preferably an ethoxylated nonylphenol and / or an ethoxylated fatty acid. Obviously, wetting agent-emulsifier mixtures preferably affect the penetration depth.

6,72670

As the organic solvent, an organic, volatile solvent or a mixture of solvents having a flash point above 35 ° C is used.

As the organic, volatile oily or oily solvent having an evaporation number above 35 and a flash point above 35 ° C, preferably above 55 ° C, water-insoluble or sparingly water-soluble solvents are preferably used. Such solvents are the corresponding mineral oils or their aromatic fractions or mineral oil-containing solvent mixtures, preferably naphtha and / or alkylbenzenes, etc. However, the addition of a substantial proportion of water considerably reduces the content of such petroleum products in the ready-to-use wood impregnant.

According to one embodiment, the organic, volatile solvent is completely or partially replaced by one or more water-insoluble solubilizers, preferably one or more synthetic solubilizers and / or plasticizers. This embodiment has the advantage that the concentration of solvents can be further reduced or even completely eliminated.

According to a suitable embodiment, up to 90% by weight, preferably up to 40% by weight, of the organic, volatile solvent or solvent mixture is replaced (based on 100% by weight of the organic, volatile solvent used) with a plasticizer or plasticizer mixture which acts as a solubilizer. Suitable plasticizers are, for example: alkyl, aryl or aralkyl phthalates, preferably dibutyl, dioctyl and benzyl butyl phthalates, alkyl phosphates or the like, phosphoric acid esters, preferably tributyl phosphate, adipates, preferably di- (2-ethyl diphatic) hexate,

72670 alkyl stearates or alkyl oleates, preferably butyl oleate, glycerol esters, glycerol ethers and higher molecular weight glycol ethers.

In order to prepare a ready-to-use substance for impregnating wood and wood, an additional 0.1 to 70 parts by weight, preferably 1 to 35 parts by weight of water are added to the concentrate per 100 parts by weight (concentrate calculated without water).

The insecticides used are organic insecticides which are soluble in an organic, oily or oily solvent or solvent mixture.

Carbamates, phosphoric acid esters, thiophosphoric acid esters, dithiophosphoric acid esters or thionophosphoric acid esters, chlorinated hydrocarbons, pyrethroids and / or endosulfan (thiodane) or a mixture of two or more such compounds are used as insecticides.

As the chlorinated hydrocarbons, dieldrin, aldrin or lindane are preferably used. Pyrethroids are used. preferably allethrin, cyclethrin, furethrin, tetramethrin, resmethrin, permethrin, decamethrin and bioresmethrin and other pyretrum insecticide active ingredients. Of their insecticidal carbamates, o-isopropoxy-phenyl-N-methylcarbamate and / or o-sec-butyl-phenyl-N-methyl-carbamate are preferably used.

; As insecticidal thionophosphoric acid esters, the formula is preferably used

CoK, 0 S CN --v P-O-N = C - // y ·; C2K5 ° insecticidal halogenated or halogen-free thionophosphoric acid esters, preferably (di-ethoxy-thiophosphoryloxyimino) -phenylacetonitrile or the like. O, O-diethyl-O- (α-cyanobenzylideneamino) thionophosphate and / or (diethoxythiophosphoryloxyimino) -2-chlorophenylacetonitrile and / or other phosphoric acid esters, preferably d-methoxy-O- (4-nitro-m tolyl) phosphorothioates.

Preferred carbamates which are soluble in the oily or oily solvent are alkoxy-phenyl-N-alkylcarbamates of the general formula (O) -C-NH-R10-R2 and / or alkylphenyl-N-alkylcarbamates of the general formula -1-NH-K, in which in the formula, R1 in each case represents an alkyl radical having 1 to 4 carbon atoms, preferably a methyl radical, and R2 denotes an alkyl radical having 1 to 5 carbon atoms, preferably an alkyl radical having 3 or 4 carbon atoms.

As fungicides or fungicidal mixtures, fungicides which are soluble in the organic solvent or solvent mixture used are used. In particular, tetravalent organotin compounds, chlorinated phenols, preferably esters of chlorinated phenols, e.g. pentachlorophenol lauryl acid esters, fungicidal 1-trityl-1,2,4-triazoles of the general formula n-π 9 72670. , a chlorine or bromine atom, a trifluoromethyl, nitro or cyano group or an alkyl group having up to 4 carbon atoms and n represents the number 1 or 2, and salts thereof with organic or inorganic acids, N-nitroso-N-cyclohexylhydroxylamine and / or fungicidal salts of a tris- (N-cyclohexyl-diazenium dioxo) metal compound, preferably an aluminum compound, and / or N, N-dimethyl-N'-phenyl-N '- (fluorodichloromethylthio) sulfamide and / or N, N-dimethyl-p- tolyl-N '(dichlorofluoromethylthio) sulfamide or mixtures of two or more such compounds.

As oil-soluble tetravalent, fungicidal, organic tin compounds, for example: tributyltin benzoate, tris (tributyltin) phosphate, bis- (tri-butyltin) oxide can be used.

In certain applications, it may be appropriate to add corrosion inhibitors to the sealant or wood preservative. Preferably, mandelic acid and / or benzotriazole are used in the agent as a corrosion inhibitor. Furthermore, it may be expedient to add antifoaming agents, such as silicone antifoams or alkyl phosphates, preferably tri-n-butyl phosphate.

In order to prepare a ready-to-use wood preservative, dilute 1 part of the concentrate with 3 to 20 parts by weight of water, preferably 4 to 9 parts by weight of water. Due to this relatively high degree of dilution, it is possible to significantly reduce the proportion of organic solvent, which is preferably based on petroleum, mineral oil or the like, and thus to dispense with these petroleum products. Despite the use with oily or oily solvents and water-insoluble active ingredients, an optically clear solution is obtained in the visible light waveband, so that the ready-to-use wood preservative also appears to be almost clearly dissolved.

According to a preferred embodiment, the ready-to-use agent made of wood preservative concentrate for impregnating wood and wood contains 0.35 to 10% by weight, preferably 1 to 7% by weight, of one or more organic, poorly volatile, more than A fungicide soluble or partially soluble in a solvent having a flash point of 35 ° C and / or 0.3 to 7% by weight, preferably 0.5 to 4% by weight of at least one organic, poorly volatile flash point above 35 ° C and 0.5 to 20% by weight, preferably 1 to 16% by weight of one or more emulsifiers or equine emulsifiers soluble in an organic volatile solvent and 20 to 0.5% by weight of an insecticide. %, preferably 16 .. .1% by weight of one or more water-soluble wetting agents and more than 0.5 ... not more than 7.5% by weight, preferably 1 ... 6% by weight of a volatile organic solvent having a flash point is more than 35 ° C, and more than 65% by weight, preferably more than 88% by weight of water. This impregnating agent generates visible light in the waveband optically:; ; bright emulsion or vast, dissolves almost clear.

The invention also relates to a method for producing a wood preservative concentrate and substances made therefrom for impregnating wood and wood material. The process is formed by treating water-soluble insecticides or insecticidal mixtures and / or water-soluble fungicides 11 72670 or fungicidal mixtures or liquid insecticides and / or liquid insecticides at room temperature and / or at room temperature in an organic, volatile, oily or oily solvent or solvent mixture. At a temperature between 80 ° C, preferably between 15 ° C and 45 ° C and at pressures between 0.5332 and 1.1332 bar, preferably between 0.7999 and 1.0532 bar so until a solution is formed and then the solution is combined with stirring at temperatures below 50 ° C, preferably at 15-45 ° C, into a liquid mixture containing at least one non-ionic emulsifier or non-ionic emulsifier mixture of an organic, water-insoluble solvent or a mixture of solvents and at least one water-soluble, ionogenic, cationic wetting agent or counter-solubilizing agent or an ionogenic, cationic a wetting agent mixture or a mixture of solubilizing agents and optionally water.

Examples 1) Example of a wood preservative concentrate with insecticidal activity:% by weight of aromatic hydrocarbon (evaporation number above 35), flash point 60 ° C) as solvent (Shellsol AB) 10.0 γ-hexachlorocyclohexane (lindane) as insecticide 2.5 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 10.0 50% aqueous solution of dimethylbenzyl dodecylammonium chloride as anionic wetting agent 77.5% 100.0 2) Example of a wood preservative concentrate having a fungicidal effect: 72670 -% aromatic-aliphatic hydrocarbon mixture (evaporation number above 35, flash point 60 ° C) mixed as solvent with 20% naphtha 60) 15.5 2,5-Dimethyl-N-cyclohexyl-N-methoxy-3-furanoic acid urea as fungicide 15.0 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 50.0 50% aqueous solution of dimethylbenzyldodecylammonium chloride as anionic wetting agent _20.0 100.0 3) Example wood preservative sealant from a test having an insecticidal and fungicidal action: an aromatic-aliphatic hydrocarbon mixture (evaporation number above 35, flash point 60 ° C) as solvent (Shellsol AB mixed with 15% spindle oil) 15.0 2,5-dimethyl-N-cyclohexyl-N-methoxy -3-furanoic acid urea as fungicide 15.0 hexachlorohexahydrometano-naphthalene (Aldrin) as insecticide 2.5 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 47.5 dimethylbenzyl dodecylammonium chloride 50.0 1% aqueous solution anionic ) Example of a wood preservative concentrate with insecticidal and fungicidal activity: 72670 1 3

% By weight of aromatic hydrocarbon (evaporation number above 35, flash point 60 ° C) as solvent (Shellsol AB) 15.0 2,5-Dimethyl-N-cyclohexyl-N-methoxy-3-furanoic acid urea as fungicide 15.0 γ-hexachlorocyclohexane (lindane) as human insecticide 2 , 5 Mixture of ethoxylated nonylphenols containing 6, 10 and 14 ethoxy groups in a ratio of 1: 1: 1 as emulsifier 37.5 Dimethylbenzyl dodecylammonium chloride 5% aqueous solution as anionic wetting agent 30.0 100.0 5) Example on a wood preservative concentrate with insecticidal and fungicidal activity: aromatic hydrocarbon mixture (evaporation number above 35, flash point 60 ° C) as solvent (Shellsol AB) 15.0 2,5-Dimethyl-N-cyclohexyl-N-methoxy-3-furanoic acid urea 15 .0 hexachlorohexahydrodimethanaphthalene (aldrin) as insecticide 2.5 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 47.5 dimethylbenzyl cetylammonium bromide as anionic wetting agent (without water retention) 6.0 Example of a wood preservative concentrate having insecticidal and fungicidal activity: 72670% by weight of an aromatic hydrocarbon mixture (evaporation number above 35, flash point 60 ° C) as solvent CShellsol AB) 15.0 2, 5-Dimethyl-N-cyclohexyl-N-methoxy-3-furanoic acid urea as fungicide 15.0 Hexachlorhexahydrodimethanonaphthalene (aldrin) as insecticide 2.5 Ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier ^ 7.5 Dimethyldichloro chloride as an anionic wetting agent (without water content) 20.0 100.0 7) Example of a wood preservative concentrate having insecticidal and fungicidal action: aromatic hydrocarbon mixture (evaporation number above 35, flash point 60 ° C) as solvent (Shellsol AB) 12.0 tris- (N-cyclohexyl-diazenium dioxoxy) - aluminum as fungicide 6.0 γ-hexachlorocyclohexane (lindane) as insecticide 2.0 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 20.0 dimethylbenzyl dod ecylammonium chloride as an anionic wetting agent 60.0 1 00.0 8) Example of a wood preservative concentrate having insecticidal and fungicidal activity: 72670 1 5

% By weight of an aromatic hydrocarbon mixture (evaporation number above 35, flash point 60 ° C) as solvent (Shellsol AB) 27.0 1 (4-chlorophenoxy) -3,3-dimethyl-1- (1,2,4-triazolyl) -2 -butanone as fungicide 3.0 thiophosphoric acid ester ((diethoxy-thiophosphoryloxyimino) -phenylacetonitrile)) as insecticide 2.5 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 4 7.5 dimethylbenzyl-dodecyl-ammonium aqueous solution as anionic wetting agent 20.0 100.00 9) Example of a wood preservative concentrate having insecticidal activity: dibutyl phthalate as solvent 30.0 γ-hexachlorocyclohexane (lindane) as insecticide 2.5 ethoxylated nonylphenol (containing 10 as an emulsifier M · 7.5 dimethylbenzyl dodecylammonium chloride 50% aqueous solution as anionic wetting agent 20.0 100.0 1Q) Example of a wood preservative concentrate having an insecticidal effect: butyl propylene glycol ether (molar ether) ) as a solvent (Desmophen 3500) 30.0 72670% by weight of γ-hexachlorocyclohexane (lindane) as insecticide 2.5 ethoxylated nonylphenol (containing 10 ethoxy groups) as emulsifier 47.5 dimethylbenzyl dodecylammonium chloride 5% aqueous anionic as a wetting agent _20.0 100.0 Ready-to-use wood preservative impregnation solutions were prepared by diluting with water such that 5, 10 or 20 parts by weight of the wood preservative concentrate according to Examples 1 to 10 were mixed with water at 95, 90 and 80 by weight, respectively. moiety. These ready-to-use substances appear almost clear when dissolved and do not show precipitation even during prolonged storage.

Claims (6)

1. Wood preservative concentrate, characterized in that it consists of an emulsion or solution of the following components I. 5 ... 50, advantageously 10 ... 35 parts by weight a) of a volatile, non-water-soluble organic solvent (mixture), with a flash point above 30, advantageously above 55 ° C, and b) a water insoluble insecticide (mixture) of a carbamate, a phosphoric acid ester, a thiophosphoric acid ester, a dithiophosphoric acid ester, or a thionophosphoric acid ester, a chlorinated hydrocarbon compound, a pyrethroid and / or endosulfan. and / or a water insoluble fungicide (mixture) of a tetravalent organic tin compound, an ester of a chlorinated phenol, a 1-trityl-1,2,4-triazole of the general formula "wherein R represents a fluorine, chlorine or bromine atom, a trifluoromethyl, nitro or cyano group or an alkyl group having up to 4 carbon atoms, and n represents the number 1 or 2, and their salts with organic and inorganic acids , a site of N-nitroso-N-cyclohexylhydroxyamine or (N-cyclohexyl-diazenium dioxide) metal compound, preferably an aluminum compound, an N, N-dimethyl-N'-phenyl-N '- (fluorodichloromethyl-thio) sulfamide and / or N, N-dimethyl-N'- p-tolyl-N (dichlorofluoromethylthio) sulfamide, 2,5-dimethylfuran-3-carboxylic acid anilide or cyclohexylamide or N-cyclohexyl-N-methoxy-2,5-dimethylfuran-3-carboxylic acid amide and / or 1- (p-chlorophenoxy) -3,3-dimethyl-1- (1,2,4-triazolyl) -2-butanone, II. 95 ... 50, advantageously 90 ... 65 parts by weight c) of a non-ionic emulsifier (mixture) of an ethoxylated phenol, an ethoxylated alkyl, aryl, aryl alkyl phenol or an ethoxylated phenol containing one or more other side groups, an ethoxylated organic acid, advantageously an ethoxylated nonylphenol and / or an ethoxylated fatty acid, and d) a water-soluble cationic wetting agent (blend) and solubility enhancing agent of an arylalkylammonium compound having a fungicidal or trialkylalkyl, preferably a trialkyl fungicidal action, and possibly water. Wood preservative concentrate according to claim 1, characterized in that as a wetting agent a benzyl-dimethyl (C and / or which contains tertiary amine salt (dimethyl- (C 10 -C 16 alkyl) NH) + X "and / or (methyl-di (C 10 -C 8 alkyl) NH) + X", wherein X represents a halogen, nitrate, sulfate, and / or acetate ion. Wood preservative concentrate according to claim 1, characterized in that the weight ratio of the wetting agent (mixture) to the non-ionic 72670 emulsifier (mixture) is 1:20 ... 20: 1, advantageously 1: 5 ... 5: 1. 4. Wood preservative concentrate according to claims 1 to 7, characterized in that the organic volatile solvent is partially replaced by one or more water-soluble solvent enhancers, advantageously by one or more plasticizers. Wood preservative according to any one of claims 1 ... 4, primarily of the wood preservative concentrate, characterized in that it consists of 0.35 ... 10, preferably 1 ... 7% by weight of one or more fungicides, and / or 0.3 ... 7, preferably 0.5 ... 4% by weight of one or more insecticides, and 0.5 ... 20, preferably 1 ... 16% by weight of one or more emulsifiers and more more than 20 ... .0.5, preferably 16 ... .1% by weight of one or more wetting agents, and more than 0.5 ... 7.5, preferably 1.. .6% by weight of a solvent and of more than 65, preferably 88% by weight of water, and that the impregnating agent forms an optically clear emulsion or clear solution.