FR2474936A1 - WOOD PROTECTOR CONCENTRATE, AGENTS FOR THE PRESERVATION OF WOOD AND WOOD PARTS MANUFACTURED THEREFROM AND PROCESS FOR PRODUCING WOOD PROTECTOR CONCENTRATE - Google Patents

Abstract

CONCENTRATE OF WATER-DILUABLE WOOD PROTECTION AGENT AND AGENTS FOR THE PRESERVATION OF WOOD AND WOODEN PARTS MADE FROM THIS CONCENTRATE CONSISTING OF 5 TO 43 PARTS BY WEIGHT, OF AN ORGANIC INSECTICIDE INSOLUBLE IN WATER ETOR OF AN ORGANIC INSOLUBLE OR WATER SOLUBLE FUNGICIDE, 35 TO 5 PARTS BY WEIGHT OF A PLASTICIZER OR OF AN ORGANIC SOLVENT INSOLUBLE IN WATER, CONTAINING HYDROXYL OR ETHER GROUPS, 36 TO 10 PARTS BY WEIGHT D A NON-IONOGENIC EMULSIONER, 0 TO 6 PARTS BY WEIGHT OF A PH BUFFER OR REGULATOR MATERIAL, AND 0 TO 15 PARTS BY WEIGHT OF WATER.

Description

Wood preservative concentrate, wood preservatives

  wood and wooden parts made from this concentrate and method for manufacturing a wood protection agent concentrate Case DBH 79/4 PROTECTION OF WOOD SOLVAY-BAYER (Société Anonyme) The present invention relates to a concentrate of wood preservative and agents made from this concentrate and intended for the preservation of wood and wooden parts, the concentrate and agents consisting of specific weight quantities of at least one organic chemical insecticide insoluble in water and / or at least one organic chemical fungicide which is insoluble or soluble in water, in combination with given weight quantities of a synthetic resin (calculated as the weight of solid matter) dilutable in water and given weight quantities at least one plasticizer and / or at least one organic water-insoluble chemical solvent containing hydroxyl groups and / or ether groups, given weight quantities of at least one emulsifier o u mixture of nonionogenic emulsifiers and a chemical compound which acts as a buffer material or as a pH regulator, as well as possibly with water. There is already known a wood preservative which is produced from a liquid concentrate, the active elements of which are water-insoluble insecticides and fungicides,

  which are dissolved in a solvent and in oils, inter-

-2 -

  vention of emulsifiers, so that the protective agent

  tion of ready-to-use wood is in the form of a fluid emulsion (publication of the German patent application DE-OS 18 416). In this wood preservative, caprylates and naphthenates are preferably used as fungicides

heavy metals.

  The wood preservatives described in said German patent application DE-OS 25 18 416 have the disadvantage that, when water is added, a cloudy milky emulsion is formed which is creamed after a certain time, so we

  does not achieve a uniform distribution of active agents.

  The formation of a bottom deposit has also been observed in several cases. Under these conditions, we no longer perform a

effective impregnation of wood.

  The objective of the present invention was to find a

  wood preservative in which the organic solvent

  water-insoluble nique, which preferably consists of petroleum-based products, their aromatic fractions, etc., can

  be replaced, in a significant proportion, by other

  organic and / or with water, in order to allow economical

  significantly increase the petroleum-based organic solvent,

  aromatic fractions, etc., or to reduce the proportion used.

  One should be able to largely avoid segregation or the formation of a deposit when using the wood preservative. Finally, said agent should have good efficiency. It should be stable during storage in the form of a concentrate, be transportable and be dilutable, in

  site or point of sale, up to the concentration of applications

  desired cation, by simple addition of water. By respecting certain weight quantities and well defined weight ratios and compositions, the dilutable wood protection agent

  in ready-to-use water should have a penetrating power

  tration in wood as satisfactory as possible.

  It has been found, in accordance with the invention, that these objectives are achieved by means of concentrates of wood protection agent and agents for the preservation of wood and wooden parts made from these concentrates, said concentrates and agents being based on an insecticide or insecticide mixture insoluble in water and / or a fungicide or fungicide mixture insoluble or soluble in water, as well as an emulsifier. 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 insecticide insoluble in water and / or at least one water-insoluble organic fungicide and / or one fungicide

  organic water soluble, 5 to 35 parts by weight, preferably

  15 to 25 parts by weight, of at least one synthetic resin (calculated by weight of solid material) dilutable in water, 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 solvent containing hydroxyl groups and / or ether groups, 36 to 10 parts by weight, preferably 25 to 15 parts by weight, of at least one emulsifier or mixture of nonionogenic emulsifiers, O to 6 parts by weight, preferably 1 to 2 parts by weight, of a chemical compound which acts as a buffer material or as a pH regulator, as well as O to 15 parts by weight,

  preferably 0.001 to 7 parts by weight, of water.

  According to a preferred embodiment of the invention, the concentrate contains as emulsifier, a mixture of emulsifiers

  at least one of which is an ethoxylated phenol and / or an alkyl-, aryl-

  or ethoxylated arylalkylphenol or an ethoxylated phenol containing one or more other side groups and / or an ethoxylated organic acid,

  preferably a nonylphenolethoxylate and / or an ethoxylated fatty acid.

  The use of the mixture of emulsifiers allows a fine distribution of the active agents to be obtained and substantially prevents

  segregation, depSt formation and skimming.

  According to the preferred embodiment, the concentrate and the preservative of wood and wooden parts made from this concentrate contain a mixture of emulsifiers having different lengths of catne, at least one of -4 - emulsifiers having an ethoxylated side chain having less than 10 ethoxy groups and at least one other des-emulsifier having an ethoxylated side chain having more than 10

ethoxy groups.

  According to a particularly advantageous embodiment, the concentrate contains as dilutable synthetic resin

  in water, an alkyd resin having a medium smoothness.

  Thanks to the use of this synthetic resin, despite the replacement

  important cement of the organic solvent, one obtains on the one hand a better fixation of the active agents and on the other hand the formation

  a film depending on the proportion of synthetic resin present.

  Depending on a particular form or combination of execution

  Rely adequate, the concentrate contains - as a buffer or pH regulator - an amine, an ammonium compound, a compound

  quaternary ammonium or a mixture thereof.

  The insecticide or insecticide mixture used preferably consists of a carbamate, an ester of phosphoric acid, an ester of a phosphonic acid, an ester of thiophosphoric acid,

  a dithiophosphoric acid ester or a thiono- acid ester

  phosphoric, a chlorinated hydrocarbon, a pyrethrold and / or an endosulfane, or in a mixture of two or more of these compounds. As chlorinated hydrocarbons, dieldrin, aldrin and lindane are preferably used. Among the pyrethroids,

  prefers allethrin, cyclethrin, furethrin, tetra-

  methrin, resmethrin, permethrin, decamethrin and

  bioresmethrin, as well as other active elements of pyrethrum.

  Among the insecticidal carbamates, it is preferable to choose

  o-isopropoxyphenyl N-methyl carbamate and / or N-methyl-

o-sec-butylphenyl carbamate.

  As thionophophoric acid esters of insecticides, thionophosphoric acid esters which are halogenated or free from halogen groups of formula -5- are preferably used.

S CN

2-

- 0 - N = C

2H5 C2 5

  preferably (diethoxy-thiophosphoryloxyimino) -phenylaceto-

  nitrile or O- (alpha-cyanobenzylidene-amino) thionophosphate

  of O, O-digthyle and / or (diethoxy-thiophosphoryloxyimino) -2-chloro-

  phenylacetonitrile and / or other esters of phosphoric acid, preferably dimethoxy-O- (4-nitro-m-tolyl) -phosphorothioate. As carbamates soluble in oily or oleaginous solvents, use is preferably made of the alkoxyphenyl N-alkylcarbamates of general formula

-0 - I - N - R

O - R2

  and / or an alkylphenyl N-alkylcarbamate of general formula

--0 - C - NE - R1

  R2 o, in each case, R1 denotes an alkyl residue containing 1 to 4 carbon atoms, preferably a methyl residue, and R2 denotes an alkyl residue containing 1 to 5 carbon atoms, preferably an alkyl residue containing 3 to 4

carbon atoms.

  The water-insoluble fungicide or fungicide mixture

  preferably consists of an organic compound of tin tetra-

  are worth a chlorinated phenol, preferably penta- or tetrachloro-

  phenol, an 11-trityl-1,2,4-triazole of general formula -6 - Rn in which R denotes a fluorine, chlorine or bromine atom, a trifluoromethyl, nitro or cyano group or an alkyl group having up to 4 carbon atoms and n the numbers 1 or 2, as well as their only organic or inorganic acids or a compound of metal and (N-cyclohexyldiazeniumdioxy) (or salt of N-nitroso-N-cyclohexylhydroxylamine), preferably their compound

  aluminum, and / or N, N-dimethyl-N '-phenyl-N' - (fluorodichloro-

  methylthio) -sulfamide and / or N, N-dimethyl-N'-p-tolyl-N'-

  (dichlorofluoromethylthio) -sulfamide, or mixtures of

two or more of these compounds.

  As oil-soluble tetravalent organic tin compounds

  fungicides one can use for example tributyl benzoate

  tin, tris phosphate (tributyltin) and bis oxide (tri-

butyltin).

  As water-soluble fungicides, preferred

  one or more water-soluble phenolates, preferably

  chlorophenolates, and / or one or more hydro-

  soluble of a compound of (N-cyclohexyl-diazeniumdioxy) (or salt of

  N-nitroso-N-cyclohexylhydroxylamine).

  As the water-insoluble organic chemical solvents containing hydroxyl groups and / or ether groups, water-insoluble polyols or water-insoluble polyol ethers or esters, preferably glycol ethers, are used. As the plasticizer, a plasticizer is used at room temperature or a mixture of liquid plasticizers. Preferably used as plasticizer is at least one alkyl, aryl or arylalkyl phthalate, preferably dibutyl, dioctyl or benzyl-butyl phthalate, an alkyl phosphate or ester. phosphoric acid, preferably phosphate

  tributyl, or an adipate, preferably di- (2-

  ethylhexyl), a stearate and / or an oleate, a stearate or an alkyl oleate, preferably butyl oleate, stearate

  butyl or amyl stearate or a liquid glycerin ester.

  For certain specific formulations, it may be advisable to add an anti-foaming agent such as a silicone-based anti-foaming agent or an alkyl phosphate, preferably tri-n-butyl phosphate. The ready-to-use preservative for bowls and wooden pieces prepared from the wood preservative concentrate comprises 10 to 30% by weight, preferably 15 to 25% by weight, of the concentrate (calculated based on an anhydrous concentrate) and 90 to

  % by weight, preferably 85 to 75% by weight, of water.

  The preservative for the bowls can be applied to the wood according to the methods known per se, preferably the methods by coating, by projection, by spraying or by using methods of impregnation, for example, by soaking, by setting

  under pressure and / or by vacuum.

  The invention further relates to a method for the manufacture of a concentrate of wood preservative and agents for preserving wood and bowl parts made from

  this concentrate. According to this process, the insecticide and / or the fungus

  cide soluble in the plasticizer or the mixture of plasticizers and / or in the solvent or mixture of solvents insoluble in water containing hydroxyl groups and / or ether groups, as well as the non-ionogenic emulsifier or the mixture of non-emulsifiers ionogenic are treated at temperatures between 10 and C, preferably between 30 and 60 C, and under pressures between 0.5332 and 1.1332 bar, preferably between 0.7999 and 1.0532 bar, in the presence or in the absence of the other substances or of constituents of these substances, until a solution is obtained, and the other substances are preferably added, including

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  8 - including buffer material, and possibly water,

  only after the formation of said solution.

  The following examples are intended to illustrate the invention,

without limiting its scope.

  These examples relate to compositions of concentrates of wood preservatives, dilutable in water and exerting

  insecticide and fungicide action.

Example 1:

  Lindane 2% by weight Aldrin 1 "Sodium pentachlorophenolate 35" Alkyd resin dilutable in water 14 "-Butylglycol 6" Dibutyl phthalate 20 "Nonoxphenol ethoxylated: degree of itoxylation 6 7"

7 "

14 7 "

  Amine 1 "Processing: 20% concentrate - 80% water The ready-to-use wood protection agent has been obtained

  by mixing 20% by weight of the concentrate with 80% by weight of water.

Example-2:

  0 (alpha-cyanobenzylideneamino-thionophosphate 0, O-digthyle (PHOXIM) 8% by weight Sodium pentachlorophenolate 25 "Alkyd resin dilutable in water 17.5" Butylglycol 7.5 "Dibutyl phthalate 20" Nonylphenol ethoxylated: Degree of ithoxylation 6 7 "

7 "

12 7 "

Amine 1 "

  Processing: 20% concentrate - 80% water.

  9 - Ready-to-use wood preservative has been obtained

  by mixing 20% by weight of the concentrate with 80% by weight of water.

Example 3:

  Lindane 4% by weight (N-cyclohexyl-diazeniumdioxy) -potassium 5 "Alkyd resin dilutable in water 14" Butylglycol 6 "Ethylglycol 22.5" Ethylglycol acetate 32.5 "Ethoxylated nonylphenols: Degrees of ethoxylation 6 5 "

5 "

14 5 "

Amine 1 "

  Processing: 15% concentrate - 85% water.

  Ready-to-use wood preservative has been obtained

  by mixing 15% by weight of concentrate with 85% by weight of water.

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Claims (7)

R E V E N D I C A T I 0 N S   1 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from this concentrate, based on an insecticide or insecticide mixture insoluble in water and / or a fungicide or water-insoluble fungicidal mixture as well as an emulsifier, characterized in that the water-dilutable wood preservative concentrate consists of 43 parts by weight, preferably 8 to 40 parts by weight of at least one water-insoluble organic insecticide and / or at least one water-insoluble organic fungicide and / or at least one water-soluble organic fungicide, 35 parts by weight, preferably 15 25 parts by weight, of at least one synthetic resin (calculated by weight of solid material) dilutable in water, 5 parts by weight, preferably 15 parts by weight, of at least one plasticizer and / or at least one organic solvent insoluble in water, containing hydroxyl groups and / or ether groups, 36 to 1 0 parts by weight, preferably 15 parts by weight, of at least one non-ionogenic emulsifier or mixture of emulsifiers, 0 to 6 parts by weight, preferably 1 to 2 parts by weight, of a chemical compound which acts as a buffer or as a pH regulator, and 0 to 15 parts by weight, preferably 0.001 to 7 parts by weight, of water. 2 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from - 11 -   of this concentrate according to claim 1, characterized in that   that the concentrate contains, as an emulsifier, a mixture of   at least one of which is an ethoxylated phenol and / or an alkyl-, aryl or arylalkylphenol ethoxylate or an ethoxylated phenol containing one or more other side groups and / or an ethoxylated organic acid, preferably an ethoxylated nonylphenol and / or an ethoxylated fatty acid.   3 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from this concentrate according to claim 1 or 2, characterized in that the concentrate and the agent for the preservation of wood and wooden parts made from this concentrate include a mixture of emulsifiers at least one of which has an ethoxylated side chain having less than 10 ethoxy groups and at least one of which has an ethoxylated side chain having more than 10 ethoxy groups.   4 - Concentrate of wood protection agent and agents for the conservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to   3, characterized in that the concentrate contains, as a water-dilutable synthetic resin, an alkyd resin having a medium oiliness.   - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from   this concentrate according to any one of claims 1 to 4,   characterized in that the concentrate contains, as a buffer or pH regulator, an amine, an ammonium compound or   a quaternary ammonium compound or a mixture thereof.   6 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to   , characterized in that the insecticide or 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 thionophos- acid ester   phoric, a chlorinated hydrocarbon, a pyrethrold and / or in endosulfane, or in a mixture of two or more of these compounds. 7 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to   6, characterized in that the water-insoluble fungicide or the water-insoluble fungicide mixture consists of an organic compound of tetravalent tin, a chlorinated phenol, preferably penta- or tetrachlorophenol, an l-trityl -1,4,4-triazole of general formula o- '-o 1 -' Rn in which R denotes a fluorine, chlorine or bromine atom, a trifluoromethyl, nitro or cyano group or an alkyl group having up to 4 carbon atoms and n the numbers 1 or 2, as well as their organic or inorganic acid salts or a metal compound and (Ncyclohexyl-diazeniumdioxy) (or N-nitroso-Ncyclohexylhydroxylamine salt), preferably their compound   aluminum, and / or N, N-dimethyl-N'-phenyl-N '- (fluorodichloro-   methylthio) -sulfamide and / or N, N-dimethyl-N'-p-tolyl-N'-   (dichlorofluoromethylthio) -sulfamide. 8 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to - 13 -   6, characterized in that the water-soluble fungicide consists of one or more water-soluble phenolates, preferably   chlorophenolates, and / or one or more hydro-   soluble of a compound of (N-cyclohexyl-diazeniumdioxy) (or salt of Nnitroso-N-cyclohexyl-hydroxylamine). 9 - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to   8, characterized in that the water-insoluble organic solvents, containing hydroxyl groups and / or ether groups, used consist of water-insoluble polyols or of ethers or esters of water-insoluble polyols, preferably of glycol ethers.   - Concentrate of wood protection agent and agents for the preservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to   9, characterized in that the plasticizer used consists of a   plasticizer or a mixture of liquid plasticizers at temperature- ambient ture.   11 - Concentrate of wood preservative and agents for the preservation of wood and wooden parts made from   of this concentrate according to any one of claims 1 to   , characterized in that they contain as plasticizer, at least one alkyl, aryl or arylalkyl phthalate, preferably dibutyl, dioctyl or benzyl-butyl phthalate, an alkyl phosphate or ester of phosphoric acid, preferably tributyl phosphate, or an adipate, preferably di- (2-ethylhexyl) adipate, a stearate and / or an oleate, a stearate or an alkyl oleate, preferably preferably butyl oleate, butyl stearate or amyl stearate, or an ester liquid glycerin.   12 - Concentrate of wood preservative and agents for the preservation of wood and wooden parts made from - 14 -   of this concentrate according to any one of claims 1 to   11, characterized in that the ready-to-use wood and wood preservative agent made from the wood preservative concentrate consists of 10 to 30% by weight, preferably 25% by weight. by weight, from the concentrate (calculated on the basis of an anhydrous concentrate) and at 70% by weight, preferably at 75% by weight, of water.   13 - Process for manufacturing the protective agent concentrate   wood according to any one of claims 1 to 11,   characterized in that the insecticide and / or fungicide soluble in the plasticizer or the mixture of plasticizers and / or in the solvent or mixture of solvents insoluble in water and containing   hydroxyl groups and / or ether groups, as well as the emul-   nonionogenic or the mixture of nonionogenic emulsifiers are treated at temperatures between and 80C, preferably between 30 and 600C and under pressures between 0.5332 and 1.1332 bar, preferably between 0.7999 and 1 , 0532 bar, in the presence or absence of the other substances or of constituents of these substances, until a solution is obtained, and the other substances are then added to said solution, including   buffer material and possibly water.