JPH035962B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to wood preservative concentrates and preservatives for wood and wood products made therefrom, which contain one or more water-insoluble organic chemical pesticides and water-insoluble and/or Contains a specified amount of one or more water-soluble organic chemical disinfectants, a specified amount (calculated as a solid) of one or more water-dilutable synthetic resins, and water-soluble hydroxyl groups and/or ether groups. It consists of a specified amount of one or more organic solvents, one or more nonionic emulsifiers, a specified amount of a compound acting as a buffer or PH-value regulator, and water.

Already produced from liquid concentrates are insecticides and fungicides whose active ingredients are insoluble in water and dissolve in solvents and oils with the addition of emulsifiers so that finished wood protectants are dilute emulsions. The wood protectants used are known (West German Patent Application No.
(See specification No. 2518416). Heavy metal caprylates and naphthenates are preferably used as disinfectants in this concentrate.

A wood protectant of this type according to DE 25 18 416 A1 shows that upon addition of water, the fat separates after a certain period of time, resulting in a milky emulsion which does not exhibit a uniform distribution of the active ingredients. . In many cases, a precipitate is observed. In this case, effective impregnation of the wood is no longer achieved.

The object and problem of the present invention is to replace a significant percentage of water-insoluble organic chemical solvents based on petroleum products, aromatic compounds, etc. with other organic chemicals and/or water. The objective was to find a treatment agent for the preservation of wood that can significantly economize or reduce the amount of organic chemical solvents based on aromatic compounds. Separation or precipitation should be carefully avoided when applying wood preservatives. Finally, the wood preservative should have a good effect. It should be storage stable in the form of a concentrate, transportable and dilutable to the working concentration by adding water at the point of use or at the point of sale. By maintaining a constant weight and a predetermined weight proportion and composition, this usable water-dilutable wood protectant also reaches the maximum possible penetration depth into the wood.

According to the invention, wood protection agent concentrates based on water-insoluble insecticides or insecticide mixtures and/or water-insoluble or water-soluble fungicides or fungicidal mixtures and emulsifiers and the wood and Treatment agents for the preservation of wood products have been found to meet this challenge. The water-dilutable wood protectant concentrate according to the invention comprises one or more water-insoluble organic chemical pesticides and/or one or more water-insoluble and/or water-soluble organic chemical fungicides. 8 to 40 parts by weight, one or more water-dilutable synthetic resins (calculated as a solid) 15 to 25 parts by weight, one organic chemical solvent containing hydroxyl and/or ether groups that is soluble in water. 15 to 25 parts by weight of the above, 15 to 25 parts by weight of one or more nonionic emulsifiers, 1 to 2 parts by weight of a compound that acts as a buffer substance or PH value regulator, and water.
It consists of 0.001 to 7 parts by weight. In a preferred embodiment, at least one emulsifier is an ethoxylated phenol or an ethoxylated alkyl, aryl, arylalkylphenol or an ethoxylated phenol having one or more side groups. The emulsifying agent mixture contains an emulsifying agent mixture which is an ethoxylated phenol and/or an ethoxylated organic acid, in particular an ethoxylated nonyphenol and/or an ethoxylated fatty acid. By using emulsifier mixtures, a fine distribution of the active substance is achieved and separation, precipitation or degreasing is largely prevented.
In an advantageous embodiment, the treatment agent for the preservation of the concentrate and of the wood and wood products produced therefrom is a mixture of emulsifiers with different chain lengths, of which at least one emulsifier contains fewer than 10 ethoxy and at least one of which has side chains ethoxylated with more than 10 ethoxy groups).

According to a particularly advantageous embodiment, the concentrate has as water-dilutable synthetic resin an alkyd resin in medium oil form (an oil-modified alkyd resin with an oil content of 40 to 60%). The use of these synthetic resins allows, on the one hand, good immobilization of the active substance and, on the other hand, film formation, depending on the synthetic resin content, despite the extensive use of petroleum-based organic solvents.

According to a particularly advantageous embodiment or combination thereof:
This concentrate can be used as a buffer or PH-value regulator.
Contains an amine, an ammonium compound, a quaternary ammonium compound, or a mixture thereof.

The pesticides or pesticide mixtures used preferably contain carbamates, phosphates, phosphonates, thiophosphates, dithiophosphates or thionophosphates, chlorinated hydrocarbons, pyrethroids and/or endosulfates. Endosulfan or two or more of these compounds.

Dieldrin, Aldrin and Lindan are preferably used as chlorinated hydrocarbons. Among the pyrethroids, preference is given to Allethrin, Cyclethrin, Furethrin, Teteamethrin,
Resmethrin, Permethin, Dekamethrin and Bioresmethrin as well as other pyrethrin-based insecticidal agents can be used.

Among the insecticidal carbamates, preference is given to using O-isopropoxyphenyl-N-methyl-carbamate and/or O-sec-butylphenyl-N-methyl-carbamate.

As the insecticide thiono-phosphate ester, the formula: Insecticidal halogenated or halogen-free thionophosphate esters, especially O,O-diethyl-
O-(α-cyanbenzylidene-amino)thionophosphate or O,O-diethyl-O-(4-
Preference is given to using nitro-m-tolyl)-phosphorothioate.

Carbamates soluble in oily or oily solvents have the general formula: Alkoxy-phenyl-N-alkyl carbamate and/or general formula: Alkylphenyl-N-alkyl carbamates are preferably used, in which R ₁ is in each case an alkyl group having 1 to 4 carbon atoms, in particular a methyl group, and R ₂ is an alkyl group having 1 to 5 carbon atoms. in particular an alkyl group having 3 or 4 carbon atoms).

The water-insoluble disinfectant or water-insoluble disinfectant mixture is preferably a tetravalent organotin compound, a chlorinated phenol, in particular venter or tetrachlorophenol, of the general formula: [In the formula, R represents a fluorine, chlorine or bromine atom, a trifluoromethyl group, a nitro group, a cyano group, or an alkyl group having up to 4 carbon atoms, and n is 1 or 2
1-trityl-1,2,4-triazole and its salts with organic or inorganic acids or (N-cyclohexyl-diazeniumdioxy)-
compound and/or N,N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide and/or N,N-dimethyl-N'-
It consists of p-tolyl-N'-(dichlorofluoromethylthio)-sulfamide.

Oil-soluble tetravalent bactericidal organotin compounds include:
For example, tributyl-tin benzoate, tris(tributyltin) phosphate, bis(tri-butyl-tin) oxide can be used.

As water-soluble fungicides, advantageously one or more water-soluble phenolates, especially chlorophenolate and/or one or more water-soluble metal salts of (N-cyclohexyl-diazeniumdioxy)-compounds (or N
-Nitroso-N-cyclohexylhydroxylamine salts) are preferably used.

As organic chemical solvents having water-soluble hydroxyl and/or ether groups, water-soluble polyols or ethers or esters of polyols, in particular glycol ethers, are used, which organic solvents are liquid at room temperature. It may also contain a plasticizer or a liquid plasticizer mixture.

In particular as plasticizers at least one alkyl-, aryl- or arylalkyl phthalate, in particular dibutyl-, dioctyl- and benzylbutyl phthalate, alkyl phosphates or phosphoric esters, especially tributyl phosphate or adipate esters, especially di-(2-ethylhexyl). )-adipate, stearate and/or oleate ester, alkyl stearate or alkyl oleate, in particular butyl oleate, butyl stearate or amyl stearate or liquid glycerin esters are preferably used.

For certain formulations, it may also be advantageous to add antifoams, such as silicone antifoams or alkyl phosphates, especially tri-n-butyl phosphate.

Treatment agents prepared for use for the preservation of wood and wood products manufactured from wood protectant concentrates include:
Concentrates 10-30% by weight especially 15-25% by weight (calculated as anhydrous concentrate) and especially 90-70% by weight especially 85-75
It consists of % by weight.

The wood protectants can be applied to the wood in a known manner, for example by painting, sprinkling, spraying or using impregnation methods, such as dipping, pressure and/or vacuum methods.

Furthermore, the wood protective agent of the present invention is produced by the following method. In this way, a soluble insecticide and/or fungicide and a nonionic emulsifier or nonionic emulsifier mixture in a polyol or ether or ester of a polyol are added at a temperature of 10 to 80°C, in particular 30 to 60°C.
400mmHg ~ 850mmHg (0.5332 ~ 1.1332 bar)
in particular at 600 mmHg to 790 mmHg (0.7999 to 1.0532 bar), in the presence or absence of other substances or these substances, until a solution is formed, in particular the remaining material being added to this solution for the time being followed by a buffer substance. It may also be advantageous to add water.

Examples of water-dilutable wood protectant concentrates with insecticidal and fungicidal action Lindane 2% by weight Aldrin 1% by weight Pentachlorophenol-sodium 35% by weight Water-dilutable alkyd resin 14% by weight Butyl glycol (n-C ₄ H ₉ −O−CH ₂・
CH ₂ OH) 6% by weight Dibutyl phthalate 20% by weight Ethoxylated nonylphenols: Degree of ethoxylation 6 7% by weight 10 7% by weight 14 7% by weight Cyclohexylamine 1% by weight Used: 20% concentrate - 80% by weight % This ready-to-use wood protectant was obtained by mixing 20% by weight of concentrate and 80% by weight of water.

O,O-diethyl-O-(α-cyanobenzylideneamino)-thionophosphate (phoxim)
8% by weight Sodium Bentachlorophenol 25% by weight Water-dilutable alkyd resin 17.5% by weight Butyl glycol 7.5% by weight Dibutyl phthalate 20.0% by weight Ethoxylated nonylphenols: Degree of ethoxylation 6 7.0% by weight 10 7.0% by weight 12 7.0% by weight Cyclohexylamine 1.0% by weight Use: 20% concentrate - 80% water The ready-to-use wood protectant was obtained by mixing 20% by weight concentrate and 80% by weight water.

Lindane 4.0% by weight (N-cyclohexyl-diazeniumdioxy)-potassium 5.0% by weight Water-dilutable alkyd resin 14.0% by weight Butyl glycol 6.0% by weight Ethyl glycol (C ₂ H ₅ -O-CH ₂ .
CH ₂ OH) 22.5% by weight Ethyl glycol acetate 32.5% by weight Ethoxylated nonylphenols: Degree of ethoxylation 6 5.0% by weight 10 5.0% by weight 14 5.0% by weight Cyclohexylamine 1.0% by weight Used: Concentrate 15% - Water 85 % by weight The wood protectant prepared for use was obtained by mixing 15% by weight of the concentrate and 85% by weight of water.

The application amount of these wood protectants is 200 g/mm ² .

Claims (1)

[Scope of Claims] 1 a One or more water-insoluble organic insecticides and/or one or more water-insoluble and/or soluble organic fungicides 8 to 40 parts by weight b Medium oil form dilutable with water One or more alkyd resins 15 to 25 parts by weightc One or more nonionic emulsifiers 15 to 25 parts by weightd One or more polyols or ethers or esters of polyols 15 to 25 parts by weighte Acts as a buffer or PH value regulator Compound
1 to 2 parts by weight f) A water-dilutable wood protective agent, characterized in that it contains 0.001 to 7 parts by weight of water. 2. Claim 1 contains an amine, an ammonium compound, a quaternary ammonium compound, or a mixture thereof as a buffering agent or a PH value regulator.
Wood protectants listed in section. 3 c) component is ethoxylated alkyl-,
The wood protectant according to claim 1 or 2, which is an aryl-, arylalkylphenol, ethoxylated nonylphenol and/or ethoxylated fatty acid. 4. Any one of claims 1 to 3, wherein the insecticide consists of a carbamate, phosphate ester, phosphonate ester, thiophosphate ester, dithiophosphate ester, or thionophosphate ester, pyrethroid and/or endosulfan. Wood protectants listed in . 5 Water-insoluble disinfectants include tetravalent organotin compounds,
General formula: [In the formula, R represents a fluorine, chlorine or bromine atom, a trifluoromethyl group, a nitro group, a cyano group, or an alkyl group having up to 4 carbon atoms, and n is 1 or 2
1-trityl-1,2,4-triazole and its salts with organic or inorganic acids or (N-cyclohexyl-diazeniumdioxy)-
Metal compounds and/or N,N-dimethyl-N'-
Phenyl-N′-(fluorodichloromethylthio)
-sulfamide and/or N,N-dimethyl-
The wood protective agent according to any one of claims 1 to 4, comprising N'-p-tolyl-N'-(dichlorofluoromethylthio)-sulfamide. 6. The wood protectant according to any one of claims 1 to 5, wherein the water-soluble fungicide is a metal salt of a water-soluble (N-cyclohexyl-diazeniumdioxy)-compound. . 7. The wood protecting agent according to any one of claims 1 to 6, comprising 15 to 25% by weight of a water-free wood protecting agent and 75 to 85% by weight of water.