JPH035963B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to water dilutable wood preservatives.

Preservative concentrates of this type are described in the as yet unpublished West German patent application no. P30043197. However, when using non-ionic insecticides and fungicides, wood preservatives of this type may, for example, lead to the formation of cloudy emulsions or to deposits of the active substance, thus resulting in a partial loss of the active substance or a loss of the active substance. The disadvantage is that it is not always possible to avoid the risk of a decrease in

According to the invention, these disadvantages are avoided when preparing a prepared wood preservative with the addition of water and a prepared clear solution is obtained as an optically clear emulsion or microemulsion,
The agents prepared in this way have a high effectiveness.

According to the invention, these objects and tasks are achieved by: at least one water-insoluble organic insecticide and at least one water-insoluble organic fungicide 5 to 43 parts by weight, in particular 8 to 40 parts by weight diluted with water At least one possible alkyd resin 5 to 35 parts by weight, in particular 15 to 25 parts by weight (calculated as solids) At least one water-soluble organic solvent containing hydroxyl or ether groups and at least one water-insoluble solvent 40 to 5 parts by weight, in particular 30 to 15 parts by weight of at least one nonionic emulsifier or emulsifier mixture 50 to 37 parts by weight, in particular 48 to 38 parts by weight As buffer substance or as pH value regulator Water-dilutable wood preservatives containing active compounds as well as water have been found to be suitable.

According to the invention, the water-insoluble solvent or solvent mixture is selected from the group of aliphatic or aromatic hydrocarbons or liquid plasticizers or liquid plasticizer mixtures; The weight ratio with the water-soluble organic chemical solvent is from 6:1 to 1:20, especially from 4:1 to
It was 1:10.

In a preferred embodiment, the wood preservative comprises as emulsifier or emulsifier mixture at least one ethoxylated phenol, in particular ethoxylated nonylphenol, or ethoxylated fatty acid containing side groups and up to 15 parts by weight of water.
In particular, it contains 0.001 to 7 parts by weight.

By applying high emulsifier concentrations, a fine dispersion of the active substance is achieved and component separation, precipitates or separations are significantly avoided.

In one embodiment, the wood preservative has an ethoxylated side chain of less than 10 ethoxy groups and at least one other emulsifier has an ethoxylated side chain of less than 10 ethoxy groups.
Contains a mixture of emulsifiers with different chain lengths with ethoxylated side chains of more than 10 ethoxy groups.

In a particularly advantageous embodiment, the wood preservative contains an alkyd resin having a medium oil content as a water-dilutable alkyd resin. Due to the use of this synthetic resin, despite the low proportion of organic solvents, e.g. petroleum-based, on the one hand a good fixation of the active substance is achieved and on the other hand, depending on the proportion of synthetic resin, film formation is possible. Become. The composition of this wood preservative is as follows: At least one water-insoluble organic insecticide and at least one water-insoluble organic fungicide 8 to 40 parts by weight A water-dilutable alkyd with a medium oil content. At least one resin 15-25 parts by weight (calculated as solid) Solvent mixture containing at least one water-soluble organic solvent containing hydroxyl or ether groups and at least one water-insoluble solvent 30-15 parts by weight At least one ionic emulsifier or emulsifier mixture 48-38 parts by weight Compounds acting as buffer substances or PH regulators 1-2 parts by weight and water.

In a particularly advantageous embodiment, the wood preservative has a pH value of 7 to
10 contains one or more alkali-acting compounds as buffer substances or PH value regulators.

For adjusting the PH value, it is possible in particular to use alkaline liquids (for example caustic soda or potash), basic reactants (for example soda), amines, ammonium compounds or quaternary ammonium compounds or mixtures thereof.

Nonionic water-insoluble organic pesticides or pesticide mixtures include carbamates, phosphate esters,
It is advantageous if it consists of a phosphonate, thiophosphate, dithiophosphate or thionophosphate, a chlorinated hydrocarbon, a pyrethroid and/or an endosulfan, or two or more of these compounds.

Dieldrin, aldrin and lindane are preferably used as chlorinated hydrocarbons. Among the pyrethroids, it is advantageous to use arethrin, ciclethrin, frethrin, tetramethrin, resmethrin, permethrin, decamethrin and bioresmethrin, as well as other synthetic or natural insecticidal agents based on pyrethroids.

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

As the insecticidal thionophosphate ester, the formula: Insecticidal halogenated or halogen-free thionolinate esters having
O-(α-cyanobenzylidene-amino)thionophosphate and/or (diethoxythiophosphoryloxyimino)-2-chlorophenylacetonitrile and/or other phosphoric acid esters, especially dimethoxy-O-(6- The use of nitro-m-tolyl)-phosphorothioate is preferred.

Carbamates soluble in oily or oily solvents have the general formula: Alkoxy-phenyl-N-alkyl carbamate and/or general formula: It is advantageous to use alkylphenyl-N-alkyl carbamates. In this case, R ₁ in the above formula
each represents a methyl group with 1 to 4 C atoms, and R ₂ represents a group with 1 to 5 C atoms, especially 3 to 4 C atoms.
represents an alkyl group.

The water-insoluble organic fungicidal agent or water-insoluble fungicidal mixture is a tetravalent tin organic compound, general formula: 1- of [wherein R represents a fluorine, chlorine or bromine atom, or a trifluoromethyl group, a nitro group, a cyano group or an alkyl group having up to 4 carbon atoms, and n represents a numerical value of 1 or 2] Trityl-1,2,4-triazole and its salts with organic or inorganic acids, or (N-cyclohexyl-diazeniumdioxy)-metal compounds (or
-Nitroso-N-cyclohexylhydroxylamine salt) or its aluminum compound, 2,
5-dimethyl-N-cyclohexyl-N-methoxy-3-furan-carboxylic acid amide or N,N-
Dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide and/or N,N
-Dimethyl-N'-p-tolyl-N'-(dichlorofluoromethylthio)-sulfamide or two or more of these compounds is preferred.

As the oil-soluble tetravalent organic tin compound having fungicidal action, for example, tributyl-tin benzoate, tris(tributyltin) phosphate, bis-(tributyltin) oxide, tributyltin naphthenate, and tributyltin octoate can be used.

Water-soluble organic solvents containing hydroxyl or ether groups are water-soluble polyols or ethers or esters of polyols, in particular glycol ethers.

In particular, organic solvents containing hydroxyl groups and/or ether groups include ethylene glycol (2-hydroxy-ethanol), diethylene glycol (2,2-dihydroxy-diethyl ether), and ethyl glycol (2-hydroxy-diethyl ether). , butyl glycol (1-hydroxy-2-n-butoxyethane) and/or ethyl diglycol (2-hydroxy-2-ethoxy-diethyl ether).

As water-insoluble organic solvents it is advantageous to use hardly volatile solvents or solvent mixtures. Volatility above 35 and flash point above 30°C, especially
It is advantageous to use oily or mineral oil-containing or oily solvents above 55°C.

Solvents of this type include the corresponding mineral oils or their aromatic fractions or solvent mixtures containing mineral oils, in particular mineral spirits, petroleum oils, gas oils and/or alkylbenzenes.

In particular, mineral oils with a boiling range of 150 to 220 °C, boiling range
Mineral spirits 170-220℃, boiling range 250
Spindle oil at ~350°C, petroleum or aromatics with a boiling range of 160-260°C, turpentine oil, etc. are used.

The plasticizer used is a plasticizer or a liquid plasticizer mixture that is liquid at room temperature.

Plasticizers include at least one alkyl, aryl or arylalkyl phthalate, in particular dibutyl, dioctyl and benzylbutyl phthalate, alkyl phosphates or phosphoric esters, in particular tributyl phosphate, or adipates, especially Preference is given to using di-(2-ethylhexyl) adipate, alkyl stearates or alkyl oleates, especially butyl oleate, butyl stearate or amyl stearate, or liquid glycerin esters.

For certain formulations, it may be advantageous to add foam suppressors such as silicone antifoams or alkyl phosphates, especially tri-n-butyl phosphate. Additionally, dyes or other additives can be added depending on the properties of the agent desired.

Ready-to-use wood preservatives contain from 10 to 35% by weight, in particular from 15 to 30% by weight of the wood preservatives mentioned above.
(calculated as anhydrous wood preservative) and water 90-65% by weight,
In particular, it consists of 85 to 70% by weight.

Wood preservatives are applied onto the wood in a known manner, in particular by applying them,
It can be applied by spraying, spraying or by applying impregnation methods, such as dipping, pressure and/or vacuum methods.

Furthermore, the present invention relates to a method for producing a wood preservative. By this method, a soluble insecticide and/or fungicide and a nonionic emulsifier or nonionic emulsifier mixture in an organic solvent or solvent mixture at a temperature of 10 to 80%
℃, especially 30-60℃ and pressure 400-850mmHg
(0.5332 to 1.1332 bar), especially 600 to 790 mmHg
(0.7999-1.0532 bar) in the presence or absence of other substances or components of these substances until a solution is formed, to which solution other substances, including buffer substances, and optionally water are added.

Example 1 1,2,3,4,10,10-hexachlor-1,
4,4a,5,8,8a-hexahydro-1,4
-Endo-5,8-exo-dimethanonaphthalin (Aldrin) 3% 2,5-dimethyl-N-cyclohexyl-N-
Methoxy-3-furancarboxylic acid amide 7.5% Ethoxylated nonylphenol 42% Water-dilutable alkyd resin 20% Butyl glycol 8% Ethylene glycol 10% Hydrocarbon solvent mixture 7.5% Amine 2% 100% Wood preservative 20% by weight was diluted with 80% water by weight.
A ready-to-use wood preservative is then obtained in the form of an optically clear solution.

This insecticidal and fungicidal wood preservative is suitable for protecting wood and woodwork from termites.

Example 2 1,2,3,4,10,10-hexachlor-1,
4,4a,5,8,8a-hexahydro-1,4
-Endo-5,8-exo-dimethanonaphthalene (aldrin) 2.4% N-cyclohexyl-diazeniumdioxy-
Aluminum 10% Ethoxylated nonylphenol 42% Water-dilutable alkyd resin 14.6% Butyl glycol 6.2% Hydrocarbon solvent mixture 23.3% Amine 1.5% 100% Wood preservative 25% by weight diluted with 75% water.
A ready-to-use wood preservative is obtained in the form of an optically clear liquid.

This insecticidal and fungicidal wood preservative is also suitable for protecting wood and woodwork from termites.

Example 3 0,0-diethyl-O-(α-cyanbenzylidene-amino)-thionophosphate (foxime) 10% 2,5-dimethyl-N-cyclohexyl-N-
Methoxy-3-furancarboxylic acid amide 7.5% Ethoxylated nonylphenol 44% Water-dilutable alkyd resin 16.3% Butyl glycol 7% Hydrocarbon solvent mixture 7.5% Dibutyl phthalate 6% Amine 1.7% 100% Wood preservative 20% by weight was diluted with 80% water by weight.
A ready-to-use wood preservative is obtained in the form of an optically clear liquid.

Insecticidal and fungicidal wood preservatives are also suitable for internal use.

Claims (1)

[Scope of Claims] 1 At least one water-insoluble organic insecticide and at least one water-insoluble organic fungicide 5 to 43 parts by weight At least one water-dilutable alkyd resin 5 to 35 parts by weight ( (calculated as a solid) Solvent mixture containing at least one water-soluble organic solvent containing a hydroxyl group or ether group and at least one water-insoluble solvent 40 to 5 parts by weight At least one nonionic emulsifier or emulsifier mixture 50 ~37 parts by weight A water-dilutable wood preservative containing a compound acting as a buffer substance or as a PH value regulator as well as water. 2. The water-insoluble solvent or solvent mixture is selected from the group of aliphatic or aromatic hydrocarbons or liquid plasticizers or liquid plasticizer mixtures, and the weight ratio to the water-soluble organic solvent is 6:1. A water-dilutable wood preservative according to claim 1, wherein the water-dilutable wood preservative is present in a ratio of ˜1:20. 3. The water according to claim 1 or 2, which contains as an emulsifier or emulsifier mixture at least one ethoxylated phenol or ethoxylated fatty acid containing a side chain group and up to 15 parts by weight of water. A wood preservative that can be diluted with. 4 At least one water-insoluble organic insecticide and at least one water-insoluble organic fungicide 8 to 40 parts by weight At least one water-dilutable alkyd resin having a medium oil length 15 to 25 parts by weight (as a solid) Calculation) Solvent mixture containing at least one water-soluble organic solvent containing a hydroxyl group or ether group and at least one water-insoluble solvent 30 to 15 parts by weight At least one nonionic emulsifier or emulsifier mixture 48 to 38 A water-dilutable wood preservative according to any one of claims 1 to 3, comprising 1 to 2 parts by weight of a compound acting as a buffer substance or PH regulator and water. 5. The water according to any one of claims 1 to 4, which contains one or more compounds having an alkaline action as a buffer substance for adjusting pH 7 to 10 or as a pH regulator. Dilutable wood preservative. 6. The organic insecticide or insecticide mixture contains carrbamate, phosphate ester, phosphonate ester, thiophosphate ester, dithiophosphate ester or thionophosphate ester, chlorinated hydrocarbon, pyrethroid or endosulfan, or two or more of these compounds. A water-dilutable wood preservative according to any one of claims 1 to 5, comprising seeds. 7 The water-insoluble fungicidal agent or water-insoluble fungicidal mixture is a tetravalent tin organic compound, general formula: [wherein R represents a fluorine, chlorine or bromine atom, or a trifluoromethyl group, a nitro group, a cyano group or an alkyl group having up to 4 carbon atoms, and n represents a numerical value of 1 or 2] 1-trityl-1,2,4-triazole and its salts with organic or inorganic acids or (N-cyclohexyl-diazeniumdioxy)-metal compounds (or N
-Nitroso-N-cyclohexylhydroxylamine salt) or its aluminum compound, 2,5
-dimethyl-N-cyclohexyl-N-methoxy-3-furan-carboxylic acid amide or N,N-dimethyl-N'-phenyl-N'-(fluorodichloromethylthio)-sulfamide and/or N,N-
Any one of claims 1 to 6 consisting of dimethyl-N'-p-tolyl-N'-(dichlorofluoromethylthio)-sulfamide or two or more of these compounds Water-dilutable wood preservative as listed. 8 At least one water-insoluble organic insecticide and at least one water-insoluble organic fungicide 5 to 43 parts by weight At least one water-dilutable alkyd resin 5 to 35 parts by weight (calculated as solid) Hydroxyl group or a solvent mixture containing at least one water-soluble organic solvent containing an ether group and at least one water-insoluble solvent 40 to 5 parts by weight At least one nonionic emulsifier or emulsifier mixture 50 to 37 parts by weight Buffer Anhydrous wood preservative consisting of a compound acting as a substance or as a pH regulator 10-35% by weight and 90-90% water
A water-dilutable wood preservative consisting of 65% by weight and present in the form of a solution, optically clear emulsion or microemulsion. 9 At least one water-insoluble organic insecticide and at least one water-insoluble organic fungicide 5 to 43 parts by weight At least one water-dilutable alkyd resin 5 to 35 parts by weight (calculated as solid) Hydroxyl group or a solvent mixture containing at least one water-soluble organic solvent containing an ether group and at least one water-insoluble solvent 40 to 5 parts by weight At least one nonionic emulsifier or emulsifier mixture 50 to 37 parts by weight Buffer substance Pesticides and fungicides soluble in organic solvents or solvent mixtures and non-ionic emulsifiers in a process for producing water-dilutable wood preservatives containing compounds acting as or as pH regulators and water. or non-ionic emulsifier mixture at a temperature of 10-80℃
and at a pressure of 0.5332 to 1.1332 bar, in the presence or absence of other substances or components of these substances,
A process for producing a wood preservative, characterized in that it is treated until a solution is formed, and then other substances, including buffer substances, and water are added to the solution.