DE202007018968U1 - Agrochemical compositions with lactic acid compounds (II) - Google Patents

Abstract

Agrochemical compositions containing
(a) lactic acid dimethylamide,
(b) at least one biocide, and
(c) at least one emulsifier.

Description

Field of the invention

The The present invention is in the field of agrochemicals and relates to lactic acid dimethylamide and its use as a solvent or dispersant for biocides.

State of the art

biocides, and in particular pesticides, which include, in particular, fungicides, insecticides and herbicides are important adjuvants for agriculture, with the help of which the crops are protected and can be increased. Dependent on from the often very different requirement profiles There are a very large number of active substances in the market with different chemical structures and modes of action. Nevertheless It is well known in the art that the preparation of aqueous formulations of these drugs still due to lack of stability - especially for longer storage times and high or low temperatures - a Problem presents. The fact is that the solutions in all Usually show a strong tendency to deposit crystals, what is it then requires solids again before use redispersed to obtain a homogeneous formulation. by virtue of the fact that the formulations are usually with Sprayers are applied, there is also the problem, the crystal deposits nozzles and filters can clog, which then additional cleaning effort required.

From the DE 4112873 A1 the use of lactic acid dimethylamide is known as a toxicologically acceptable substitute for the solvent NMP in formulations containing the fungicide triforin.

In the EP 0453899 B1 (Bayer), the use of dimethylamides derived from saturated C ₆ -C ₂₀ fatty acids as crystallization inhibitors for fungicides of the azole derivatives type is proposed. However, it has been found that the dialkylamides described there are suitable as inhibitors or solvents only for a small number of classes of compounds. Even in the case of the azole derivatives, their ability to prevent the deposition of crystals is limited to storage at ambient temperature, while the performance degrades sharply even at low temperatures of 5 to 10 ° C, for example.

From the DE 4341986 A1 (Bayer), the use of dialkylamides based on various carboxylic acids as crystallization inhibitors for azoles is also known. For this purpose, the only lactic acid compound mentioned in Example 23 is di-n-butylamide, but not lactic acid dimethylamide.

Subject of the post-published WO 2007/107745 A2 / A3 (Syngenta) is the use of a wide variety of lactic acid amides to reduce the toxicity of certain surfactants and as a solvent for biocides. For the latter application, lactic acid dimethylamide is expressly excluded.

As a result, has the problem underlying the present invention, It was to overcome the disadvantages of the prior art and to make new preparations available through improved storage stability and decreased Tendency to deposit crystals for as much as possible extensive number of biocides and a temperature range of 5 up to 40 ° C.

Description of the invention

• (a) Milchsäuredimethylamid,
• (b) wenigstens ein Biozid, und
• (c) wenigstens einem Emulgator.

The invention relates to agrochemical compositions containing

• (a) lactic acid dimethylamide,
• (b) at least one biocide, and
• (c) at least one emulsifier.

Surprisingly was found that lactic acid dimethylamide in comparison to known fatty acid dialkylamides of the prior art has a significantly higher solubilization performance. The Applicant has found that lactic acid dimethylamide together with emulsifiers is capable of producing a large number of different biocides even under extreme storage conditions, For example, storage times of up to weeks at temperatures in the Range from 5 to 40 ° C without phase separation or sedimentation to stabilize.

biocides

• • Pesitizide, welche Fungizide, Herbizide, Insektizide, Algizide, Moluscizide, Mitizide und Rodentizide umfassen, sowie
• • Antimikrobielle Wirkstoffe, die Germizide, Antibiotika, sowie Wirkstoffe gegen Bakterien, Viren, Protozoen und Parasiten einschließen.

Biocides (component b) are chemical substances capable of killing various forms of living organisms and are used in a variety of fields such as medicine, agriculture, forestry or insect control. Usually biocides are divided into two groups:

• Pesticides comprising fungicides, herbicides, insecticides, algicides, molluscicides, miticides and rodenticides, as well as
• • Antimicrobial agents that include germicides, antibiotics, as well as anti-bacterial, viral, protozoal and parasitic agents.

biocides For example, plants can - usually in liquid form - administered to these to protect against biological infections and growth to promote. The preferred biocides according to the present Invention are fungicides, herbicides and insecticides that will be explained below by a number of examples:

Examples of suitable fungicides are:

(3-ethoxypropyl) mercuric bromide, 2-methoxyethylmercuric chloride, 2-phenylphenol, 8-hydroxyquinone sulfate, 8-phenylmercurioxyquinoline, acibenzolar, acylamino acid fungicides, acypetacs, aldimorph, aliphatic nitrogen fungicides, allyl alcohol, amide fungicides, ampropylfos, anilazine, anilide fungicides, antibiotic fungicides, Aromatic Fungicides, Aureofungin, Azaconazole, Azithiram, Azoxystrobin, Barium Polysulfides, Benalaxy, Benalaxyl M, Benodanil, Benomyl, Benquinox, Bentaluron, Benthiavalicarb, Benzalkonium Chloride, Benzamacril, Beeenzamide, Benzamorf, Benzanilides, Benzimidazoles, Benzimidazolylcarbamates, Benzohydroxamic Acid, Benzothiazoles, Bethoxazine, Binapacryl, biphenyl, bitertanol, bithionol, blasticidin-S, bordeaux broth, boscalid, bromuconazole, bupirimate, burgundy mixture, buthiobate, butylamine, calcium polysulfides, captafol, captan, carbamate, carbamorph, carbanilates, carbendazim, carboxin, carpropamide, carvone, Chestnuts mix, Chinomethionat, Chlobenthiazone, Chloran iformethane, chloranil, chlorfenazole, chlorodinitronaphthalene, chloroneb, chloropicrin, chlorothalonil, chlorquinox, chlozolinate, ciclopirox, climbazole, clotrimazole, conazole, cupfer (II) acetate, cupric cupric (II) carbonate, cupfer (II) hydroxide, cupfer naphthenate, cupfer oleate Cupfer oxychloride, cupfer (II) sulfate, cupfer (II) sulfate basic, cupfer zinc chromate, cresol, cufraneb, cuprobam, cyazofamide, cyclafuramide, cyclic dithiocarbamate, cycloheximide, cyflufenamid, cymoxanil, cypendazole, cyproconazole, cyprodinil, dazomet, DBCP , Debacarb, Decafentin, Dehydroacetic Acid, Dicarboximide, Dichlofluanid, Dichlone, Dichlorophene, Dichlorophenyl, Dicarboximide, Dichlozoline, Diclobutrazole, Diclocymet, Diclomethine, Dicloran, Diethofencarb, Diethyl pyrocarbonate, Difenoconazole, Diflumetorim, Dimethirimol, Dimethomorph, Dimoxystrobin, Diniconazole, Dinitrophenol, Dinobuton , Dinocap, dinocton, dinopentone, dinosulfone, dinoterbon, diphenylamine, dipyrrithione, disulfiram, ditalimfos, dithianone, dithiocarba mate, DNOC, dodemorph, dodicin, dodin, donatodine, drazoxolone, edifenphos, epoxiconazole, etaconazole, etem, ethaboxam, ethirimol, ethoxyquin, ethylmercury, 2,3-dihydroxypropylmercaptide, ethylmercuric acetate, ethylmercury bromide, ethylmercury chloride, ethylmercury phosphate, etridiazole, famoxadone, fenamidone, fenaminosulf , Fenapanil, fenarimol, fenbuconazole, fenfuram, fenhexamid, fenitropan, fenoxanil, fenpiclonil, fenpropidin, fenpropimorph, fentin, fFrbam, ferimzone, fluazinam, fludioxonil, flumetover, flumorph, fluopicolide, fluoroimide, fluotrimazole, fluoxastrobin, fluquinconazole, flusilazole, flusulfamide, flutolanil , Flutriafol, folpet, formaldehyde, fosetyl, fuberidazole, furalaxyl, furametpyr, furamides, furanilides, furcarbanil, furconazole, furconazole-cis, furfural, furmecyclox, furophanate, glyodine, griseofulvin, guazatine, halacrinate, hexachlorobenzene, hexachlorobutadiene, hexachlorophene, hexaconazole, hexylthiofos , Hydrargaphen, hymexazole, imazalil, imibenconazole, imide azole, iminoctadines, iodomethanes, ipconazoles, ipamples, isprodione, iprovalicarb, isoprothiolane, isovaledione, kasugamycin, kresoxime-methyl, limewhs, mancopper, mancozeb, maneb, mebenil, mecarbinzide, mepanipyrim, mepronil, mercuric chloride, mercuric oxide, metalaxyl, metalaxyl-m, Metamoxolone, metconazole, methasulfocarb, methfuroxam, methylbromide, methylisothiocyanate, methylmercurybenzoate, methylmercurydicyandiamide, methylmercury pentachlorophenoxide, metiram, metominostrobin, metrafenone, metsulfovax, milneb, morpholine, myclobutanil, myclozoline, N- (ethylmercury) -p-toluenesulphonanilide, nabam, natamycin, Nitrostyrene, nitrothalisopropyl, nuarimol, OCH, octhilinone, ofurac, organo-mercury compounds, organophosphorus compounds, organotin compounds, orysastrobin, oxadixyl, oxathiin, oxazoles, oxy-cupfer, oxpoconazole, oxycarboxine, pefurazoate, penconazole, pencycuron, pentachlorophenol, penthiopyrad, phenylmercury urea, phenylmercuric acetates, phenylqu silver chloride, phenylmercury derivatives of pyrocatechol, phenylmercuric nitrate, phenylmercuric salicylate, phenylsulfamide, phosphodiphene, phthalides, phthalimides, picoxystrobin, piperaline, polycarbamates, polymeric dithiocarbamates, polyoxins, polyoxorim, polysulfides, potassium azide, potassium polysulfide, potassium thiocyanate, probenazole, prochloraz, procymidone, propamocarb, propiconazole, propineb , Per quinazide, prothiocarb, prothioconazole, pyracarbolide, pyraclostrobin, pyrazoles, pyrazophos, pyridines, pyridinitrile, pyrifenox, pyrimethanil, pyrimidines, pyroquilon, pyroxychlor, pyroxyfur, pyrroles, quinacetol, quinazamide, quinconazole, quinone, quinoline, quinoxaline, quintoene, rabenzazole, salicylanilide, Silthiofam, simeconazole, sodium azide, sodium orthophenylphenoxide, sodium pentachlorophenoxide, sodium polysulfide, spiroxamine, streptomycin, strobilurin, TCMTB, tebuconazole, tecloftalam, tecnazene, tecoram, tetraconazole, thiabendazole, thiadifluor, thiazole, thicyofen, thifluzamide, thiocarbamate, thiochlorfenphim, thiomersal, thiophanate, thiophanate methyl, thiophene, thioquinox, thiram, tiadinil, tioxymide, tivedo, tolclofos-methyl, tolnaftate, tolylfluanid, tolylmercuric acetate, triadimefon, triadimol, triamiphos, triarimol, triazobutyl, triazine, triazole, triazoxide, tributyltinoxide, trichlamide, tricyclazole, tridemorph, trifloxystrobin Triflumizole, triticonazole, undecylenic acid, uniconazole, Ha substance, validamycin, valinamide, vinclozoline, zarilamide, zinc naphthenate, zineb, zirconium, zoxamide and mixtures thereof.

Examples of suitable herbicides are:

2,4-D, Atrazines, clopyralid, dicamba, glyphosate, imazapyr, imazapic, metoalachlor, Paraquat, picloram, triclopyr.

Examples of suitable insecticides are:

• • Chlorinated insecticides such as Camphechlor, DDT, hexachlorocyclohexanes, gamma-hexachlorocyclohexanes, Methoxychlor, Pentachlorophenol, TDE, Aldrin, Chlordane, Chlordecone, Dieldrin, Endosulfan, Endrin, Heptachlor, Mirex and mixtures thereof;
• Organophosphorus insecticides, such as acephates, azinphos-methyl, Bensulide, chloroethoxyfos, chlorpyrifos, chlorpyriphos-methyl, diazinon, Dichlorvos (DDVP), dicrotophos, dimethoates, disulfotone, ethoprop, fenamiphos, Fenitrothion, fenthion, fosthiazate, malathion, methamidophos, methidathione, Methyl parathion, mevinphos, naled, omethoate, oxydemeton-methyl, Parathion, Phorates, Phosalone, Phosmet, Phostebupirim, Pirimiphos-methyl, Profenofos, Terbufos, Tetrachlorvinphos, Tribufos, Trichlorfon and their mixtures;
• Carbamates such as, aldicarb, carbofuran, carbaryl, Methomyl, 2- (1-methylpropyl) phenyl methylcarbamate and mixtures thereof;
• Pyrethroids such as, for example, allethrin, bifenthrin, Deltamethrin, permethrin, resmethrin, sumithrin, tetramethrin, tralomethrin, Transfluthrin and its mixtures;
• • Plant toxins such as Derris (rotenone), pyrethrum, Neem (azadirachtin), nicotine, caffeine and their mixtures.

emulsifiers

• • Anlagerungsprodukte von 2 bis 30 Mol Ethylenoxid und/oder 0 bis 5 Mol Propylenoxid an lineare Fettalkohole mit 8 bis 22 C-Atomen, an Fettsäuren mit 12 bis 22 C-Atomen, an Alkylphenole mit 8 bis 15 C-Atomen in der Alkylgruppe sowie Alkylamine mit 8 bis 22 Kohlenstoffatomen im Alkylrest;
• • Alkyl- und/oder Alkenyloligoglykoside mit 8 bis 22 Kohlenstoffatomen im Alk(en)ylrest und deren ethoxylierte Analoga;
• • Anlagerungsprodukte von 1 bis 15 Mol Ethylenoxid an Ricinusöl und/oder gehärtetes Ricinusöl;
• • Anlagerungsprodukte von 15 bis 60 Mol Ethylenoxid an Ricinusöl und/oder gehärtetes Ricinusöl;
• • Partialester von Glycerin und/oder Sorbitan mit ungesättigten, linearen oder gesättigten, verzweigten Fettsäuren mit 12 bis 22 Kohlenstoffatomen und/oder Hydroxycarbonsäuren mit 3 bis 18 Kohlenstoffatomen sowie deren Addukte mit 1 bis 30 Mol Ethylenoxid;
• • Partialester von Polyglycerin (durchschnittlicher Eigenkondensationsgrad 2 bis 8), Polyethylenglycol (Molekulargewicht 400 bis 5000), Trimethylolpropan, Pentaerythrit, Zuckeralkoholen (z. B. Sorbit), Alkylglucosiden (z. B. Methylglucosid, Butylglucosid, Laurylglucosid) sowie Polyglucosiden (z. B. Cellulose) mit gesättigten und/oder ungesättigten, linearen oder verzweigten Fettsäuren mit 12 bis 22 Kohlenstoffatomen und/oder Hydroxycarbonsäuren mit 3 bis 18 Kohlenstoffatomen sowie deren Addukte mit 1 bis 30 Mol Ethylenoxid;
• • Mischester aus Pentaerythrit, Fettsäuren, Citronensäure und Fettalkohol und/oder Mischester von Fettsäuren mit 6 bis 22 Kohlenstoffatomen, Methylglucose und Polyolen, vorzugsweise Glycerin oder Polyglycerin.
• • Mono-, Di- und Trialkylphosphate sowie Mono-, Di- und/oder Tri-PEG-alkylphosphate und deren Salze;
• • Wollwachsalkohole;
• • Polysiloxan-Polyalkyl-Polyether-Copolymere bzw. entsprechende Derivate;
• • Block-Copolymere z. B. Polyethylenglycol-30 Dipolyhydroxystearate;
• • Polymeremulgatoren, z. B. Pemulen-Typen (TR-1, TR-2) von Goodrich;
• • Polyalkylenglycole sowie
• • Alkyl- und Glycerincarbonate.

It has proved to be advantageous to add emulsifiers (component c) to the formulations in order to further improve their stability in this way. A first preferred group of emulsifiers includes nonionic surfactants, such as:

• Addition products of 2 to 30 moles of ethylene oxide and / or 0 to 5 moles of propylene oxide to linear fatty alcohols having 8 to 22 carbon atoms, to fatty acids having 12 to 22 carbon atoms, to alkylphenols having 8 to 15 carbon atoms in the alkyl group and Alkylamines having 8 to 22 carbon atoms in the alkyl radical;
• • alkyl and / or alkenyl oligoglycosides having 8 to 22 carbon atoms in the alk (en) yl radical and their ethoxylated analogs;
• Adducts of 1 to 15 moles of ethylene oxide with castor oil and / or hydrogenated castor oil;
• Adducts of 15 to 60 moles of ethylene oxide with castor oil and / or hydrogenated castor oil;
• Partial esters of glycerol and / or sorbitan with unsaturated, linear or saturated, branched fatty acids having 12 to 22 carbon atoms and / or hydroxycarboxylic acids having 3 to 18 carbon atoms and their adducts with 1 to 30 moles of ethylene oxide;
• Partial esters of polyglycerol (average intrinsic degree of condensation 2 to 8), polyethylene glycol (molecular weight 400 to 5000), trimethylolpropane, pentaerythritol, sugar alcohols (eg sorbitol), alkylglucosides (eg methylglucoside, butylglucoside, laurylglucoside) and polyglucosides (e.g. Cellulose) with saturated and / or unsaturated, linear or branched fatty acids containing 12 to 22 carbon atoms and / or hydroxycarboxylic acids containing 3 to 18 carbon atoms and adducts thereof with 1 to 30 moles of ethylene oxide;
• Mixed esters of pentaerythritol, fatty acids, citric acid and fatty alcohol and / or mixed esters of fatty acids having 6 to 22 carbon atoms, methyl glucose and polyols, preferably glycerol or polyglycerol.
• Mono-, di- and trialkyl phosphates and mono-, di- and / or tri-PEG-alkyl phosphates and their salts;
• • wool wax alcohols;
• Polysiloxane-polyalkyl-polyether copolymers or corresponding derivatives;
• Block copolymers z. For example, polyethylene glycol-30 dipolyhydroxystearates;
• • Polymer emulsifiers, eg. Pemulen types (TR-1, TR-2) from Goodrich;
• • Polyalkylene glycols as well
• • alkyl and glycerol carbonates.

The addition products of ethylene oxide and / or of propylene oxide onto fatty alcohols, fatty acids, alkylphenols or castor oil are known, commercially available products. These are mixtures of homologues whose average degree of alkoxylation corresponds to the ratio of the amounts of ethylene oxide and / or propylene oxide and substrate, with which the addition reaction is carried out corresponds. C _12/18 fatty acid _mono- and diesters of addition products of ethylene oxide with glycerol are known as refatting agents for cosmetic preparations. Further preferred emulsifiers are described in more detail below:

partial glycerides

typical Examples of suitable partial glycerides are hydroxystearic acid monoglyceride, Hydroxystearic acid diglyceride, isostearic acid monoglyceride, Isostearic acid diglyceride, oleic acid monoglyceride, oleic acid diglyceride, Ricinoleic acid glyceride, ricinoleic acid diglyceride, Linoleic acid monoglyceride, linoleic acid diglyceride, Linolenic acid monoglyceride, linolenic acid diglyceride, Erucic acid monoglyceride, erucic acid diglyceride, Tartaric acid glyceride, tartaric acid diglyceride, citric acid monoglyceride, Citric Acid Diglyceride, Malic Acid Monoglyceride, Malic Acid Diglyceride and their technical mixtures, which are subordinate to the manufacturing process may still contain small amounts of triglyceride. Also suitable addition products of 1 to 30, preferably 5 to 10 moles of ethylene oxide to said Partialglyceride.

sorbitan

When Sorbitan esters include sorbitan monoisostearate, sorbitan sesquiisostearate, Sorbitan diisostearate, sorbitan triisostearate, sorbitan monooleate, Sorbitan sesquioleate, sorbitan dioleate, sorbitan trioleate, sorbitan monoerucate, Sorbitan sesquierucate, sorbitan adipate, sorbitan trierucate, sorbitan monoricinoleate, Sorbitan squiricinoleate, sorbitan dianicinoleate, sorbitan triricinoleate, Sorbitan monohydroxystearate, sorbitan sesquihydroxystearate, sorbitan dihydroxystearate, Sorbitan trihydroxystearate, sorbitan monotartrate, sorbitan sesqui tartrate, Sorbitan ditartrate, sorbitan tritartrate, sorbitan monocitrate, sorbitan sesqui citrate, Sorbitan citrate, sorbitan tricitrate, sorbitan monomaleate, sorbitan sesquimaleate, Sorbitan dimaleate, sorbitan trimaleate and their technical mixtures. Also suitable are addition products of 1 to 30, preferably 5 to 10 moles of ethylene oxide to said sorbitan esters.

polyglycerol

Typical examples of suitable polyglycerol esters are Polyglyceryl-2 Dipolyhydroxystearate (Dehymuls ^® PGPH), Polyglycerin-3-Diisostearate (Lameform ^® TGI), Polyglycery-4 Isostearate (Isolan ^® GI 34), Polyglyceryl-3 Oleate, Diisostearoyl Polyglyceryl-3 Diisostearate (Isolan ^® PDI), Polyglyceryl-3 methylglucose Distearate (Tego Care ^® 450), Polyglyceryl-3 Beeswax (Cera Bellina ^®), Polyglyceryl-4 Caprate (polyglycerol Caprate T2010 / 90), Polyglyceryl-3 Cetyl ether (Chimexane ^® NL), Polyglyceryl -3 Distearate (Cremophor ^® GS 32) and Polyglyceryl polyricinoleates (Admul ^® WOL 1403) polyglyceryl dimerates Isostearate and mixtures thereof. Examples of other suitable polyol esters are the mono-, di- and triesters of trimethylolpropane or pentaerythritol with lauric acid, coconut fatty acid, tallow fatty acid, palmitic acid, stearic acid, oleic acid, behenic acid and the like, which are optionally reacted with from 1 to 30 mol of ethylene oxide.

Anionic emulsifiers

typical anionic emulsifiers are aliphatic fatty acids with 12 to 22 carbon atoms, such as palmitic acid, Stearic acid or behenic acid, and dicarboxylic acids with 12 to 22 carbon atoms, such as azelaic acid or sebacic acid.

Amphoteric and zwitterionic emulsifiers

Furthermore, zwitterionic surfactants can be used as emulsifiers. Zwitterionic surfactants are those surface-active compounds which have at least one quaternary molecule in the molecule Wear ammonium group and at least one carboxylate and a sulfonate group. Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylammoniumglycinate, for example Kokosalkyldimethylammoniumglycinat, N-acylaminopropyl-N, N-dimethylammoniumglycinate, for example Kokosacylaminopropyldimethyl-ammoniumglycinat, and 2-alkyl-3-carboxylmethyl-3 -hydroxyethylimidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group and cocoacylaminoethylhydroxyethylcarboxymethylglycinate. Particularly preferred is the fatty acid amide derivative known under the CTFA name Cocamidopropyl Betaine. Also suitable emulsifiers are ampholytic surfactants. Ampholytic surfactants are understood as meaning those surface-active compounds which, apart from a C _8/18 -alkyl or acyl group in the molecule, contain at least one free amino group and at least one -COOH or -SO ₃ H group and are capable of forming internal salts. Examples of suitable ampholytic surfactants are N-alkylglycines, N-alkylpropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids each having about 8 to 18 C Atoms in the alkyl group. Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C _12/18 acylsarcosine.

Industrial Applicability

Agrochemical compositions

• (a) ungefähr 0,1 bis ungefähr 99 Gew.-%, vorzugsweise ungefähr 5 bis ungefähr 90 und insbesondere ungefähr 15 bis ungefähr 25 Gew.-% Milchsäuredimethylamid;
• (b) ungefähr 1 bis ungefähr 99,9 Gew.-%, vorzugsweise ungefähr 2 bis ungefähr 80 Gew.-% und insbesondere ungefähr 5 bis ungefähr 15 Gew.-% Biozide, sowie
• (c) 1 bis ungefähr 10 Gew.-% und vorzugsweise ungefähr 1 bis ungefähr 5 Gew.-% Emulgatoren,

mit der Maßgabe, dass sich die Mengenangaben gegebenenfalls zusammen mit Wasser zu 100 Gew.-% addieren. Üblicherweise beträgt der Aktivsubstanzgehalt, also die Summe der Komponenten (a + b + c), ungefähr 5 bis 50 Gew.-% und vorzugsweise ungefähr 10 bis ungefähr 25 Gew.-% bezogen auf die gesamte wässrige Zubereitung.Typically, the compositions of the invention contain

• (a) about 0.1 to about 99%, preferably about 5 to about 90, and more preferably about 15 to about 25% by weight of lactic acid dimethylamide;
• (b) about 1 to about 99.9 wt%, preferably about 2 to about 80 wt%, and more preferably about 5 to about 15 wt% biocides, as well as
• (c) 1 to about 10% by weight and preferably about 1 to about 5% by weight emulsifiers,

with the proviso that the amounts are optionally added together with water to 100 wt .-%. The active substance content, that is to say the sum of the components (a + b + c), is usually about 5 to 50% by weight and preferably about 10 to about 25% by weight, based on the total aqueous preparation.

Examples

Examples 1 to 6, Comparative Examples V1 and V2

Various aqueous concentrates were prepared by mixing biocides, dimethylamides and emulsifiers in water until its homogeneous solution was obtained. Subsequently, the concentrates were diluted with water to an application concentration of 10% by weight. The products thus obtained were stored for a period of 10 to 40 days at temperatures of 5, 20 and 40 ° C and subjectively assessed the stability according to the following test scheme: (++) = stable; (+) = slight phase separation, formation of single crystals, (o) = distinct phase separation; (-) phases separated, strong deposition of crystals. The results are summarized in Table 1. The weights are based on the compositions of the concentrates, Table 1 Stability of biocide formulations Compositions [% by weight] 1 2 3 4 5 6 V1 V2 biphenyl 35 - - - - - - - Glyphosphate - 35 - - 25 - 35 - deltamethrin - - 35 - - 25 - 35 glucoprotamine - - - 35 - - - - Milchsäuredimethylamid 25 25 25 25 15 15 - - Stearinsäuredimethylamid - - - - - - 25 25 Sorbitan / dilaurate + 20EO 10 10 5 5 - - 10 10 Polyglyceryl-2 dipolyhydroxystearate - - 5 5 10 10 - - water ad 100 stability - after 10 days, 5 ° C ++ ++ ++ ++ ++ ++ O O - after 20 days, 5 ° C + + ++ ++ ++ ++ - - - after 40 days, 5 ° C 0 0 + + + ++ - - - after 10 days, 20 ° C ++ ++ ++ ++ ++ ++ ++ ++ - after 20 days, 20 ° C ++ ++ ++ ++ ++ ++ ++ ++ - after 40 days, 20 ° C ++ ++ ++ ++ ++ ++ + + - after 10 days, 40 ° C ++ ++ ++ ++ ++ ++ + + - after 20 days, 40 ° C ++ ++ ++ ++ ++ ++ O O - after 40 days, 40 ° C + + + + ++ ++ O O

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4112873 A1 [0003]
• EP 0453899 B1 [0004]
• - DE 4341986 A1 [0005]
• - WO 2007/107745 A2 / A3 [0006]

Claims (5)

Agrochemical compositions containing (A) Milchsäuredimethylamid, (b) at least one biocide, and (c) at least one emulsifier. Composition according to Claim 1, characterized that the biocides are selected from the group that formed is made of fungicides, herbicides, insecticides, and their mixtures. Compositions according to claims 1 and / or 2, characterized in that they are used as component (c) Contain emulsifiers which are nonionic surfactants is. Preparations according to at least one of the preceding Claims 1 to 3, characterized in that they (A) 0.1% to 99% by weight of lactic acid dimethylamide, (b) 1% to 99.9% by weight of biocides, and (c) 1% to 10% by weight of emulsifiers With the proviso contain that the quantities if necessary supplement with water to 100 wt .-%. Preparations according to at least one of the preceding Claims 1 to 4, characterized in that they have a Have active substance content of 5 to 50 wt .-%.