Polyesters as dispersants for agricultural actives
Polyesters derived from aromatic polycarboxylic acids and polyols serve as biodegradable dispersants for agricultural active ingredients, addressing environmental and toxicological concerns by enhancing dispersing properties and stability.
Patent Information
- Application Number
- PCT/EP2025/052470
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-07
- Filing Date
- 2025-01-31
- Publication Date
- 2025-08-14
AI Technical Summary
Existing dispersants for agricultural active ingredients, such as surfactants and polyethers based on styrene oxide, are not biodegradable and pose environmental and toxicological risks, while biodegradable alternatives like alkoxylated phosphate esters have inferior dispersing properties.
Utilizing polyesters derived from aromatic polycarboxylic acids and polyols as dispersants, which are biodegradable and exhibit excellent dispersing properties, stabilizing agricultural active ingredients and preventing particle agglomeration.
The polyesters provide effective dispersion and stabilization of agricultural active ingredients, ensuring long-term effectiveness and safety for the environment without harmful residues.
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Abstract
Description
Polyester as a dispersant for agricultural active ingredients The present invention relates to the use of polyesters as dispersants for agricultural active ingredients. To ensure the effectiveness and handling of agricultural active ingredients, such as pesticides, the agricultural active ingredients are provided as components of appropriately adjusted formulations. These are usually liquid formulations such as dispersions in which the active ingredients are dispersed. To guarantee the long-term effectiveness of the dispersions, dispersants, also known as dispersing additives, are used. They ensure the stability of the formulations and increase the bioeffectiveness and bioavailability of the active ingredients. The dispersants are intended to reduce sedimentation of the active ingredients and slow particle growth of the active ingredients through agglomeration or Oswald ripening. The dispersants are also intended to stabilize the surface of the solid active ingredient during grinding, thus leading to finer particles.Therefore, good adsorption on the surface of the active ingredient particles is an important criterion for dispersants. Surfactants or polymers are typically used as dispersants. Dispersants with aromatic groups are known to exhibit good dispersing properties. For example, surfactants or polymers based on tristyrylphenol (TSP) or nonylphenol (NP), such as tristyrylphenol ethoxylates or nonylphenol ethoxylates, exhibit good dispersing properties. However, these dispersants are not biodegradable. They therefore remain in the soil or enter the groundwater. The aforementioned nonylphenol compounds are also not toxicologically safe and are therefore no longer approved in the European Union for certain uses where they may enter wastewater or come into direct contact with humans. Other dispersants containing aromatic groups are also known, such as polyethers, which can be obtained by alkoxylation of an alcohol with styrene oxide in combination with other alkylene oxides, such as propylene oxide or ethylene oxide. W02020193035A1, for example, discloses polyethers based on styrene oxide as suitable dispersants for agricultural active ingredients, including BREAK-THRU® DA 647 (Evonik). Kruse et al., in Agropages, 2017, Formulation & Adjuvant Technology, “Evonik: New Multifunctional Additive for Sophisticated Formulations,” also describe dispersants that contain phenyl residues as anchor groups. These dispersants are available under the name BREAK-THRU® DA (Evonik). Specifically, the advantageous Properties of BREAK-THRU® DA 647 are described. The tested formulations exhibit no agglomeration, sedimentation, or thickening. The particle size distribution remains unchanged even over extended periods. Furthermore, the formulations disperse spontaneously when diluted with water. This self-dispersion in water is also known as the blooming effect. BREAK-THRU® DA 647 not only exhibits excellent dispersing properties but is also toxicologically safe for humans. However, it is labeled as harmful to aquatic life with long-lasting effects (H412). Although styrene oxide-based polyethers are, as mentioned above, very good dispersants for agricultural active ingredients, they are generally not biodegradable. This is also a significant disadvantage for BREAK-THRU® DA 647. However, biodegradable dispersants for agricultural active ingredients are also known. One such biodegradable dispersant for agricultural active ingredients is Agrilan® 1015 (Nouryon). Agrilan® 1015 (Nouryon) is also said to be non-persistent in the environment and have low aquatic toxicity. Agrilan® 1015 (Nouryon) is an alkoxylated phosphate ester. Alkoxylated phosphate esters suitable as dispersants are disclosed, for example, in WO2016097162A1 and US2020154703A1. However, the inventors have now discovered that the dispersing properties of Agrilan® 1015 (Nouryon) are inferior to those of BREAK-THRU® DA 647 (Evonik). There was therefore a need for dispersants for agricultural active ingredients that had good dispersing properties but were also biodegradable and toxicologically safe. The object of the present invention was therefore to overcome at least one disadvantage of the prior art. In particular, the object was to provide dispersants for agricultural active ingredients that exhibit good dispersing properties while also being toxicologically safe and biodegradable. A further object was to provide liquid active ingredient compositions in which the agricultural active ingredients are finely distributed through their interaction with the dispersant. In a completely different technical field, namely that of detergents and dishwashing detergents, polyesters based on polyols and aromatic dicarboxylic acids, including terephthalic acid in particular, have been used for decades as components of detergents or dishwashing detergents. The polyesters have the task of removing dirt. They are therefore often referred to as soil-release agents or soil-release polymers. The production and / or Use of these compounds is described in numerous publications, including GB1154730A, EP0442101A1 , US4116885A, DE4403866A1 , EP0964015A1 , EP0185427A2, WO2006133867A1, WO2006133868A1, WO2009153184A1, W02012104158A1, WO2014019658A1, WO2014019659A1, WO2014019903A1, WO2017162378A1, EP4006131 A1. Surprisingly, it has now been found that polyesters, in particular the above-mentioned soil-release agents or soil-release polymers, are excellently suited as dispersants for agricultural active ingredients, and are also toxicologically safe and biodegradable. A first object of the invention is therefore a composition containing: (A) at least one polyester, (B) at least one agricultural active substance, (C) a carrier liquid, (D) and optionally at least one further additive. A further object of the invention is the use of the composition according to the invention for the treatment of plants and / or seeds and / or soils. Yet another object of the invention is the use of at least one polyester as a dispersant for one or more agricultural active ingredients. A further object of the invention is therefore the use of at least one polyester for reducing the particle growth of one or more agricultural active ingredients dispersed in a carrier liquid. Advantageous embodiments of the invention are specified in the dependent claims, the examples, and the description. Furthermore, it is expressly pointed out that the disclosure of the subject matter of the present invention includes all combinations of individual features of the following description of the invention and the patent claims. In particular, embodiments of one subject matter of the invention also apply mutatis mutandis to the embodiments of the other subject matter of the invention. If ranges, general formulas, or classes of compounds are specified below, these are intended to include not only the corresponding ranges or groups of compounds explicitly mentioned, but also all subranges and subgroups of compounds that can be obtained by removing individual values (ranges) or compounds. If documents are cited within the scope of this description, their entire content is intended to be part of the disclosure of the present invention. Unless otherwise stated, mean values given below are numerical averages. Unless otherwise stated, measured values, parameters, or material properties given below that are determined by measurement are measured at 25 °C (room temperature) and preferably at atmospheric pressure. Atmospheric pressure is defined as a pressure of 101325 Pa. The composition according to the invention contains (A) at least one polyester, (B) at least one agricultural active substance, (C) a carrier liquid, (D) and optionally at least one further additive. In a preferred embodiment, the composition consists (essentially) of (A), (B), (C) and optionally (D). Components (A), (B), (C) and (D) are all different from one another. In the event that a component of the composition can in principle be assigned to two or more of the aforementioned components (A), (B), (C) and (D), this component should be assigned to the component in question that is mentioned first in the order given above, unless there is an explicit deviation from this rule. If, for example, a component can be assigned to one of the components (B), (C) and (D), it should be assigned to the first of the mentioned components, in this example (B). A component is therefore not assigned to more than one of the components (A), (B), (C) and (D). Preferably, the composition is a dispersion in which the dispersion medium comprises the predominant part of the carrier liquid contained in the composition and the disperse phase comprises the predominant part of the agricultural active ingredient contained in the composition. The dispersion can be, for example, a suspension or an emulsion. The emulsion can be, for example, a water-in-oil emulsion (W / O emulsion) or an oil-in-water emulsion (O / W emulsion). However, the dispersion is particularly preferably a suspension. The composition according to the invention contains at least one polyester as component (A). For the purposes of the present invention, a polyester is understood to mean a compound having at least two carboxylic acid ester groups. It is preferred that the polyester is obtainable by polycondensation of at least one aromatic polycarboxylic acid or its ester and at least one polyol and optionally at least one monool, and an optional subsequent further reaction of hydroxyl groups. It is preferred that the optional subsequent further reaction of hydroxyl groups is omitted. It is therefore preferred that the polyester is obtainable by polycondensation of at least one aromatic polycarboxylic acid or its ester and at least one polyol and optionally at least one monool. It is preferred that no aliphatic polycarboxylic acids or their esters are reacted during the polycondensation. It is particularly preferred that the polyester is not obtainable by polycondensation of at least one aliphatic polycarboxylic acid and at least one polyol and optionally at least one monool and an optional subsequent further reaction of hydroxyl groups. For the purposes of the present invention, a polycarboxylic acid is understood to be a compound with at least two carboxylic acid groups. A polyol is understood to be a compound with at least two alcoholic hydroxyl groups. A monool, in turn, is a compound with exactly one alcoholic hydroxyl group. The synthesis of polyesters is generally familiar to the person skilled in the art and, especially with regard to the soil-release agents or soil-release polymers mentioned at the outset, is known in particular from the publications cited at the outset. If polycarboxylic acids are used in the synthesis, the alcoholic hydroxyl groups of the polyols or monools are reacted with carboxylic acid groups of the polycarboxylic acid during the polycondensation to form ester groups, with the elimination of water. If, however, their esters are used in the synthesis, the alcoholic hydroxyl groups of the polyols or monools are reacted with carboxylic acid ester groups of the polycarboxylic acid esters during the polycondensation, with the elimination of alcohols to form ester groups. It is preferred that the aromatic polycarboxylic acid is selected from the group consisting of benzenedicarboxylic acids and benzenetricarboxylic acid, which in turn may be substituted or unsubstituted. It is further preferred that the aromatic polycarboxylic acid is selected from the group consisting of substituted and unsubstituted benzenedicarboxylic acids. Preferably, the aromatic polycarboxylic acid is selected from the group consisting of phthalic acid, isophthalic acid and terephthalic acid, wherein these acids may optionally carry a sulfonic acid, sulfonate, phosphonic acid or phosphonate group. It is also preferred that the aromatic polycarboxylic acid is selected from the group consisting of phthalic acid, isophthalic acid, and terephthalic acid, wherein these acids are unsubstituted. In this case, the aromatic polycarboxylic acid does not carry a sulfonic acid, sulfonate, phosphonic acid, or phosphonate group. Even more preferably, the aromatic polycarboxylic acid is terephthalic acid, which may optionally carry a sulfonic acid, sulfonate, phosphonic acid or phosphonate group. However, the aromatic polycarboxylic acid is particularly preferably an unsubstituted terephthalic acid. In this case, the aromatic polycarboxylic acid does not contain a sulfonic acid, sulfonate, phosphonic acid, or phosphonate group. It is further preferred that the polyol is selected from the group consisting of C2-C4 alkylenediols and polyetherdiols based on C2-C8 alkylene oxides. It is also preferred that the monool is obtainable by polyaddition of at least one C2-C8 alkylene oxide to a Ci-Ce alcohol. The term “Cx-Cy” stands for x to y carbon atoms. A Cx-C y -Alkylenediol is therefore an alkylenediol with x to y carbon atoms, a Cx-C y -Alkylene oxide an alkylene oxide with x to y carbon atoms, a Cx-C y -alcohol an alcohol with x to y carbon atoms, a Cx-C y -Alkyl radical an alkyl radical with x to y carbon atoms etc. Preferred C2-C4 alkylenediols are 1,2-ethanediol and 1,2-propanediol. Preferred C2-C8 alkylene oxides are ethylene oxide, propylene oxide, butylene oxide, and styrene oxide, but especially ethylene oxide and propylene oxide. Preferred C1-C8 alcohols are primary and secondary alcohols. The resulting polyester is linear or branched, but preferably linear. It preferably has terminal alcoholic hydroxy groups, i.e., at the chain ends. However, it is also possible to further react the terminal alcoholic hydroxy groups. Preferably, the hydrogen atom of the alcoholic hydroxy group is replaced by an acyl group or an alkyl group, which in turn may be substituted or unsubstituted. It is preferred that the polyester contains or consists of the following units (a1), (a2), (b) and (c) and optionally (d): (a1 ) (a2) (b) (c) (d) where: R 1is each independently selected from H, SO3; PO3 2 ; substituted or unsubstituted alkyl or acyl radicals, preferably having 1 to 6 carbon atoms, in particular having 1 to 4 carbon atoms, where, if R 1 carries a charge, at least one counterion selected from the group consisting of organic cations, inorganic cations and H + to balance the load; R 2 is each independently selected from alkylene radicals, preferably having 2 to 8 carbon atoms, in particular having 2 to 3 carbon atoms; R 3 is each independently selected from substituted or unsubstituted aromatic radicals; R 4 is each independently selected from hydrocarbon radicals, preferably having 2 to 4 carbon atoms, in particular having 2 to 3 carbon atoms; a = 1 to 200; b = 2 to 3; c = 2 to 3. In one embodiment, the index a is: a = 1 to 200, preferably 1 to 100, in particular 1 to 50; In an alternative embodiment, the index a is: a = 1 to 200, preferably 5 to 50, in particular 10 to 40; The index a stands for the number of units -OR 2 - in the unit (a2) and / or for the number of units -OR 2 - per unit (a2) expressed as numerical average (arithmetic mean) over all units (a2) (e.g. in the composition according to the invention), preferably for the latter, i.e. for the number of units -OR 2 - per unit (a2) expressed as the numerical average (arithmetic mean) over all units (a2). The unit (a2) can, for example, be obtained in the context of the polycondensation of a polyol of the formula H-(OR 2 ) a -OH or a monool of the formula R 1 -(OR 2 ) a -OH with an aromatic polycarboxylic acid or its ester. The aforementioned alkylene radicals are often also referred to as alkanediyl radicals. The polyester is composed in such a way that each O1 / 2 forms an O together with another O1 / 2. The O1 / 2 therefore only occur in pairs. One O1 / 2 of an individual unit (a1), (a2), (b), (c) or (d) is preferably linked to another O1 / 2 of another individual unit (a1), (a2), (b), (c) or (d). However, the O1 / 2 can also be linked to other structural elements of the polyester not listed above, provided they have at least one O1 / 2. Preferably, the units (a1), (a2), (b), (c) or (d) are only linked to other units (a1), (a2), (b), (c) or (d). Preferably: - Units (a1) are only bound to units (a2), - Units (a2) are only bound to units (a1) and (b), - Units (b) are only bound to units (a2), (c) and (d), - Units (c) are only bound to units (b) and (d) and - Units (d) are only bound to units (b) and (c). The polyester is charge-neutral and, if it contains charged residues that do not balance each other in their charge, contains corresponding counterions. These are preferably singly or doubly charged counterions. If the residues are negatively charged, as in the case of CO2' (carboxylate), SCh' (sulfonate), POa 2- (Phosphonate) the counterions are selected from the group consisting of organic cations, inorganic cations and H + Organic counterions can be, for example, quaternary ammonium compounds. Suitable inorganic cations are, for example, Na + and K + . Also H + is counted here as a counterion, even if H +usually forms the corresponding profaned residues together with the charged residue, i.e. in the case of the charged residues CO2', SOa" and POa 2- the corresponding acid residues COOH, SOaH, POaH' or PO3H2, i.e. carboxylic acid, sulfonic acid or phosphonic acid residues. It is further preferred that the polyester consists of the units (a1), (a2), (b) and (c) and optionally (d), where: R 1 is each independently selected from H and alkyl radicals having 1 to 4 carbon atoms; R 2 is each independently selected from alkylene radicals having 2 to 3 carbon atoms; R 3 is a phenylene residue; R 4 is each independently selected from hydrocarbon radicals having 2 to 3 carbon atoms; a = 1 to 200; b = 2; c = 2 to 3, wherein the alkyl, alkylene, phenylene and hydrocarbon radicals are unsubstituted. In one embodiment, the index a is: a = 1 to 200, preferably 1 to 100, in particular 1 to 50; In an alternative embodiment, the index a is: a = 1 to 200, preferably 5 to 50, in particular 10 to 40; Unsubstituted alkyl, alkylene, phenylene and hydrocarbon radicals consist only of carbon and hydrogen atoms. It is preferred that the polyester contains or consists of the following units (a), (b) and (c) and optionally (d): where: R 1 is each independently selected from H, SO3; PO3 2 ; substituted or unsubstituted alkyl or acyl radicals, preferably having 1 to 6 carbon atoms, in particular having 1 to 4 carbon atoms, where, if R 1 carries a charge, at least one counterion selected from the group consisting of organic cations, inorganic cations and H +to balance the load; R 2 is each independently selected from alkylene radicals, preferably having 2 to 8 carbon atoms, in particular having 2 to 3 carbon atoms; R 3 is each independently selected from substituted or unsubstituted aromatic radicals; R 4 is each independently selected from hydrocarbon radicals, preferably having 2 to 4 carbon atoms, in particular having 2 to 3 carbon atoms; a = 1 to 200; b = 2 to 3; c = 2 to 3. In one embodiment, the index a is: a = 1 to 200, preferably 1 to 100, in particular 1 to 50; In an alternative embodiment, the index a is: a = 1 to 200, preferably 5 to 50, in particular 10 to 40; The index a stands for the number of units -OR 2 - in the unit (a) and / or for the number of units -OR 2- per unit (a) expressed as numerical average (arithmetic mean) over all units (a) (e.g. in the composition according to the invention), preferably for the latter, i.e. for the number of units -OR 2 - per unit (a) given as numerical mean (arithmetic mean) over all units (a). As already mentioned, the polyester is composed in such a way that each O1 / 2 together with another Oi / 2 forms an O. The O1 / 2 therefore only occur in pairs. One O1 / 2 of an individual unit (a) to (d) is preferably linked to another O1 / 2 of another individual unit (a) to (d). However, the O1 / 2 can also be linked to other structural elements of the polyester not listed above, provided they contain at least one O1 / 2. Preferably, the units (a) to (d) are linked only to other units (a) to (d). Preferably: - Units (a) are only bound to units (b), - Units (b) are only bound to units (a), (c) and (d), - Units (c) are only bound to units (b) and (d) and - Units (d) are only bound to units (b) and (c). It is also preferred that the polyester consists of the units (a), (b) and (c) and optionally (d), where: R 1 is each independently selected from H and alkyl radicals having 1 to 4 carbon atoms; R 2 is each independently selected from alkylene radicals having 2 to 3 carbon atoms; R 3 is a phenylene residue; R 4 is each independently selected from hydrocarbon radicals having 2 to 3 carbon atoms; a = 1 to 200; b = 2; c = 2 to 3, wherein the alkyl, alkylene, phenylene and hydrocarbon radicals are unsubstituted. In one embodiment, the index a is: a = 1 to 200, preferably 1 to 100, in particular 1 to 50; In an alternative embodiment, the index a is: a = 1 to 200, preferably 5 to 50, in particular 10 to 40; It is preferred that the polyester is selected from compounds of formula (I): Formula (I) where: R 1 is each independently selected from H, SO3; PO3 2 ; substituted or unsubstituted alkyl or acyl radicals, preferably having 1 to 6 carbon atoms, in particular having 1 to 4 carbon atoms, where, if R 1 carries a charge, at least one counterion selected from the group consisting of organic cations, inorganic cations and H + to balance the load; R 2is each independently selected from alkylene radicals, preferably having 2 to 8 carbon atoms, in particular having 2 to 3 carbon atoms; R 3 is each independently selected from substituted or unsubstituted phenylene radicals; R 4 is each independently selected from alkylene radicals, preferably having 2 to 4 carbon atoms, in particular having 2 to 3 carbon atoms; a = 1 to 200; d = 1 to 200; e = 1 to 50. In one embodiment, the indices a, d, and e are: a = 1 to 200, preferably 1 to 100, in particular 1 to 50; d = 1 to 200, preferably 1 to 100, in particular 1 to 50; e = 1 to 50, preferably 1 to 30, in particular 1 to 10. In an alternative embodiment, the indices a, d, and e are: a = 1 to 200, preferably 5 to 50, in particular 10 to 40; d = 1 to 200, preferably 5 to 50, in particular 10 to 40; e = 1 to 50, preferably 1 to 10, in particular 1 to 5. The indices a, d, e stand for the number of corresponding units in a polyester molecule and / or for the number of corresponding units per polyester molecule, expressed as a number average (arithmetic mean, molar mean) over all polyester molecules, preferably for the latter, i.e. for the number of corresponding units per polyester molecule, expressed as a number average (arithmetic mean, molar mean) over all polyester molecules. If the indices a, d, e stand for the number of corresponding units in a polyester molecule, the indices a, d, e can be selected independently for each occurrence in the polyester molecule and can therefore be the same or different. If a mixture of polyols consisting of glycol as R 4 (OH)z and glycerol as R 4 (OH)s the index b within a polyester molecule can take on the value 2 or 3. As a numerical average (arithmetic mean, molar mean) across all polyester molecules, i.e. for the number of corresponding units per polyester molecule, b takes on values between 2 and 3, depending on the molar ratio of glycol to glycerol. If equimolar amounts of glycol and glycerol are incorporated into the polyester during production, b is 2.5. This also applies analogously to the other indices d and e. R 1 can, for example, each independently be a substituted alkyl or acyl radical, preferably having 1 to 18 carbon atoms, in particular an acyl radical of the following formula: where X is selected from the group consisting of CO2', SO3', PO3 2' and wherein at least one counterion is selected from the group consisting of organic cations, inorganic cations and H + to balance the load is included. R 1 can, for example, also be, independently of one another, an unsubstituted alkyl or acyl radical, preferably having 1 to 18 carbon atoms, in particular an acyl radical of the following formula: It is even more preferred that the polyester is selected from compounds of formula (II): Formula (II) where: R 1 is each independently selected from C1-4- alkyl radicals, or R 5 and R 6 are each independently selected from H or CH3; f and g are on average between 0 and 200, provided that the sum of f+g is on average at least 2; h is on average between 1 and 50; X is each independently selected from H or SO3~(M i+ ) y ; M i+ is each independently selected from H + or i-valent cations; i is 1 or 2; y is 0.5 or 1; with the proviso that iy is 1. More preferably, the polyester is selected from compounds of formula (III): Formula (III) where: R 1 is a Ci-4-alkyl radical, preferably CH3; R 5 and R 6 are each independently selected from H or CH3; preferably, in each of the repeating units marked with index h, one of the two radicals R 5 and R 6H and the other is CH3; f is on average 0 to 200, preferably 1 to 200, in particular 5 to 150; g is on average 0 to 200, preferably 0 to 50, in particular 0 to 20; h is on average 1 to 50; with the proviso that the sum e+f is on average at least 2. It is particularly preferred that the polyester is selected from compounds of formula (IV): where: f is on average 40 to 50; g is on average 1 to 3; h is on average 4 to 9. The repeating units designated by the indices f and g in formulas (III) to (IV) can be arranged in blocks with any number of blocks or can be subject to a randomized distribution; they can also be arranged alternately or form a gradient across the chain; in particular, they can also form all mixed forms in which groups of different distributions can optionally follow one another. Therefore, all permutations of repeating units are encompassed in the corresponding formulas. The polyester preferably has a block-wise arrangement of the repeating units designated by the indices f and g, as shown in formulas (II) to (IV). It is preferred that the weight average molecular weight M w of the polyester is from 100 g / mol to 5000 g / mol, preferably from 500 g / mol to 3000 g / mol, in particular from 900 g / mol to 1800 g / mol. Alternatively, it is preferred that the weight-average molecular weight M w of the polyester is from 100 g / mol to 5000 g / mol, preferably from 500 g / mol to 4500 g / mol, in particular from 1500 g / mol to 4000 g / mol. It is further preferred that the number average molecular weight M n of the polyester is from 100 g / mol to 5000 g / mol, preferably from 500 g / mol to 4000 g / mol, in particular from 1500 g / mol to 2500 g / mol. It is preferred that the polydispersity M w / M n from 1 to 2.5, preferably from 1.5 to 2 g / mol, in particular from 1.6 to 1.8. The weight-average molecular weight M w and the number average molecular weight M n and the polydispersity M w / M nare preferably determined in the context of the present invention by means of gel permeation chromatography (GPC), in particular against a polypropylene glycol with tetrahydrofuran as the mobile phase. Particularly preferably, the GPC measurements are carried out according to the following measurement conditions: column combination SDV 1000 / 10000 Ä (length 65 cm), temperature 30 °C, THF as mobile phase, flow rate 1 ml / min, sample concentration 10 g / l, RI detector, evaluation against polypropylene glycol standard. Preferably, the polyester is miscible with the carrier liquid. Particularly preferably, the polyester is soluble in the carrier liquid. Polyesters particularly suitable for the present invention are described in EP4006131A1 in paragraphs
[0025] until
[0027] and on page 6, line 28 to page 7, line 18. Suitable Examples of polyesters include soil-release agents or soil-release polymers available from Clariant under the name TexCare® SRN or TexCare® SRA, such as TexCare® SRN-100, TexCare® SRN-170, TexCare® SRN-240, TexCare® SRN-260, TexCare® SRN-260 Life, TexCare® SRN-300, TexCare® SRN-325, TexCare® SRA-100, and TexCare® SRA-300. Suitable polyesters are also available from Weylchem under the names WeylClean® PSA1, WeylClean® PLN1, and WeylClean® PLN2. The soil release polymers of the REPEL-O-TEC® range from Rhodia, in particular REPEL-O-TEC® SRP6 and REPEL-O-TEC® SF-2, are also suitable. The composition according to the invention contains as component (B) at least one agricultural active ingredient. "Agricultural active ingredients" are understood to mean active ingredients known for plant and / or soil treatment. They are also referred to simply as "active ingredients" in the context of the present invention. It is preferred that the agricultural active ingredient has an action directed against a specific pathogen, preferably plant pathogens, preferably an antagonistic and / or hyperparasitic action. The agricultural active ingredient is preferably a plant protection agent which acts in crop plants to cure, alleviate or prevent diseases or pest infestations or as a biostimulant. It is preferred that the agricultural active ingredient is selected from the group consisting of algicides, acaricides, aphicides, bactericides, biocides, fungicides, larvicides, helminthicides, herbicides, insecticides, nematicides, molluscicides, ovicides, rodenticides, growth regulators, plant strengtheners, biostimulants and inoculates; preferably from the group consisting of fungicides, herbicides, insecticides and biostimulants; in particular from the group consisting of fungicides, herbicides and insecticides. Some of these active ingredients are listed in The Manual of Biocontrol Agents, 5l h edition, 2014, The British Crop Protection Council and in The Pesticide Manual, 19 th edition, 2021, The British Crop Protection Council. However, the present invention is not limited to the active ingredients listed therein. It is further preferred that at least one active ingredient from the group of fertilizers is additionally included, preferably selected from the group consisting of NPK fertilizers and Micronutrients, whereby the micronutrients particularly preferably contain the elements K, Mg, Mn, Zn and / or Fe. Particularly preferred is the combination of at least one active ingredient selected from the group consisting of fertilizers and biostimulants with at least one further active ingredient selected from the group consisting of fungicides, herbicides and insecticides. Preferably, the active ingredient increases resistance and / or stress tolerance and / or nutrient availability in plants. It is preferred that the agricultural active ingredient is selected from the group consisting of chemical active ingredients and biological active ingredients, preferably selected from the group consisting of chemical and microbiological active ingredients. Preferably, the biological or microbiological active ingredient is selected from the group consisting of microorganisms and organs of microorganisms. It is particularly preferred that the microorganism is alive and / or active. For the purposes of this disclosure, microorganisms include bacteria, fungi, algae, protozoa and viruses. The microorganisms can therefore be selected from the group consisting of bacteria, fungi, algae, protozoa, and viruses. Preferably, the microorganism is selected from the group consisting of fungi and bacteria. Preferably, the biological or microbiological active ingredient is selected from the group consisting of fungi, fungal organs, bacteria and bacterial organs. Preferably, the (biological or microbiological) active ingredient is selected from the group consisting of fungi and fungal organs. It is further preferred that the fungal organs are selected from the group consisting of spores, conidia, blastospores, chlamydospores, sclerotia, hyphal segments. More preferably, the biological or microbiological active ingredient is selected from the group consisting of the fungi Ampelomyces quisqualis, Aureobasidium pullulans, Beauveria bassiana, Beauveria brongniartii, Candida oleophila, Clonostachys rosea, Coniothyrium minitans, Gliocladium catenulatum, Gliocladium virens, Isaria fumosorosea, Isaria spp., Laetisaria arvalis, Lecanicillium lecanii, Lecanicillium muscarium, Metarhizium anisopliae, Myrothecium verrrucaria, Metarhizium riley (Nomuraea rileyi), Paecilomyces lilacinus, Phlebiopsis gigantea, Phoma macrostoma, Purpureocillium lilacinus, Pythium oligandrum, Talaromyces flavus, Teratospema oligociadum, Trichoderma asperellum, Trichoderma atroviride, Trichoderma gamsii, Trichoderma hamatum, Trichoderma harzianum, Trichoderma koningii, Trichoderma reesei, Trichoderma spp., Verticillium biguttatum and their fungal organs. The use of the following fungi with antagonistic and / or hyperparasitic effects against certain plant pathogens is particularly preferred: Ampelomyces quisqualis, Beauveria bassiana, Beauveria brongniartii, Clonostachys rosea, Coniothyrium minitans, Gliocladium catenulatum, Isaria spp., Laetisaria arvalis, Lecanicillium lecanii, Lecanicillium muscarium, Metarhizium anisopliae, Metarhizium rileyi (Nomuraea rileyi), Paecilomyces lilacinus, Phoma macrostoma, Pythium oligandrum, Talaromyces flavus, Teratosperma oligociadum, Trichoderma spp. and Verticillium biguttatum. The preferred fungi for improving nutrient availability in the soil and increasing plant resistance to stress factors (including pathogens and pests) are Penicillium bilaii, Trichoderma spp., and all species that can be classified as mycorrhizal fungi. Microbiological active substances selected from the group consisting of fungi and fungal organs are particularly suitable for use as plant protection products or plant protection agents, for use as biostimulants and / or for the treatment of seeds. It is also preferred that the biological or microbiological active ingredient is selected from the group of bacteria. It is preferred that the bacterium is selected from the group consisting of Azospirillum brasilense, Azotobacter chroococcum, Bacillus amyloliquefaciens, Bacillus firmus, Bacillus licheniformis, Bacillus mycoides, Bacillus pumilus, Bacillus subtilis, Bacillus thuringiensis, Bradyrhizobium spp., Burkholderia spp., Chromobacterium subtsugae, Gluconacetobacter spp., Pseudomonas chlororaphis, Pseudomonas fluorescens, Pseudomonas syringae, Rhizobium spp., Streptomyces griseoviridis, and Streptomyces lydicus. These compositions are particularly suitable for use as plant protection agents, for use as biostimulants, and / or for seed treatment. It is also preferred that the biological or microbiological active ingredient is selected from the group of viruses, preferably selected from the group of baculoviruses, more preferably of the genera Nucleopolyhedrovirus and Granulovirus. In a preferred embodiment of the composition, the virus CpGV (Cydia pomonella granulovirus) is selected as the microbiological active ingredient. This virus is used, for example, to protect against codling moth caterpillars in fruit growing. In another preferred embodiment of the composition, the virus HearNPV (Helicoverpa armigera nucleopolyhedrovirus) is selected as the microbiological active ingredient. This virus acts specifically against the larvae of the cotton bollworm and is used, for example, to protect cotton plants. It is further preferred that the biological or microbiological active ingredient is a mixture of the above-mentioned microorganisms and / or their organs. It is particularly preferred that the biological or microbiological active ingredient is selected from the group consisting of Trichoderma harzianum, Bacillus amyloliquefaciens, Beauveria bassiana, Metarhizium rileyi (Nomuraea rileyi), Metarhizium anisopliae, Clonostachys rosea, Aureobasidium pullulans, Coniothyrium minitans and their organs; wherein the organs are preferably selected from the group consisting of spores, conidia, blastospores, chlamydospores, sclerotia, and hyphal segments. Preferred chemical active ingredients or classes of active ingredients are strobilurins, carboxamides, triazoles, benzophenones, morpholines, neonicotinoids, pyrethroids, organophosphates, phosphonates, benzimidazoles, sulfonylureas, dithiocarbamates, carbamates, growth promoters and total herbicides. It is further preferred that the chemical active ingredient is selected from the group consisting of sulfur, azoxystrobin, pydiflumetofen, oxyathiapiprolin, sedaxane, pyraclostrobin, isopyrazam, epoxyconazole, difenoconazole, metrafenone, fenpropimorph, thiamethoxam, rimsulfuron, dicamba, chlorpyrifos, imidacloprid, acetamiprid, acephate, methomyl, atrazine, paraquat, fenoxaprop-p-ethyl, cypermethrin, tebuconazole, thiabendazole, mancozeb, carbaryl, fosetyl aluminum and glyphosate. The composition according to the invention contains at least one carrier liquid as component (C). It is preferred that the carrier liquid be selected from the group consisting of water, mineral oils, mineral oil products, vegetable oils, vegetable oil derivatives, polyethers, polyglycerol esters, sorbitan fatty acid esters, citric acid esters, and mixtures thereof. Preferred vegetable oil derivatives are vegetable oil methyl esters. Suitable vegetable oils or vegetable oil derivatives are, for example, sunflower oil, soybean oil, rapeseed oil and the corresponding methyl esters, such as sunflower oil methyl ester, rapeseed oil methyl ester (also referred to as rapeseed methyl ester) and soybean oil methyl ester (also referred to as as soybean methyl ester (SME) or methylated soybean oil (MSO). Suitable mineral oils or mineral oil products include paraffin oils. Particularly suitable carrier liquids, especially for biologically active ingredients, are BREAK-THRU® BP 787, BREAK-THRU® BP 767, and BREAK-THRU® SP 133. However, water is particularly preferred as a carrier liquid. The composition according to the invention optionally contains at least one further additive as component (D). Preferably, the further additive is selected from the group consisting of thickeners, defoamers and wetting agents. Preferred thickeners are xanthan gum and hydrophilic or hydrophobic silicas, such as Aerosil® 200 and Sipernat® 22 from Evonik. Particularly preferred defoamers are polysiloxane polyethers, such as BREAK-THRU® AF 9903 from Evonik. Particularly preferred wetting agents are polyether-modified trisiloxanes, such as BREAK-THRU® S 301 and BREAK-THRU® S 240, and ethoxylated alcohols, such as TOMADOL® 1-5 from Evonik. It is preferred that the composition according to the invention contains or consists of the following components, based on the total mass of the composition: (A) in a mass fraction of 0.5% to 15%, preferably 0.75% to 10%, in particular 1% to 6%; (B) in a mass fraction of 5% to 80%, preferably 10% to 60%, in particular 20% to 50%; (C) in a mass fraction such that the sum of the mass fractions of all the components of the composition equals 100%; and optionally (D) in a mass fraction of 0% to 20%, preferably 0.1% to 10%, in particular 0.15% to 7.5%. In addition to components (A) to (D), the composition according to the invention may contain further components, such as impurities. "The sum of the mass fractions of all components" is therefore understood to mean the sum of the mass fractions of components (A) to (D) and the other components not listed above. The compositions according to the invention are formulations which are liquid or flowable at room temperature and atmospheric pressure, but are preferably liquid, such as, for example, oil dispersions (OD), suspension concentrates (SC), concentrate) or dispersion concentrates (DC, dispersion concentrate). It is preferred that the composition according to the invention is a dispersion, preferably a suspension. A further object of the invention is the use of the composition according to the invention for the treatment of plants and / or seeds and / or soils. A further subject matter of the present invention is accordingly also a method for treating plants and / or seeds and / or soils with the composition according to the invention and / or using the composition according to the invention. The composition according to the invention is preferably used as a plant protection agent, plant strengthening agent or soil improver, particularly preferably the composition is used for plant protection. When used for plant protection, seed treatment, and / or as a biostimulant, the active ingredient composition is preferably mixed into the soil or watered in, or applied to / on the plant or seed. Depending on the intended use, the active ingredient composition is diluted with water to the desired application concentration. The composition is diluted with water to form a spray mixture for application to plants or to or in the soil, preferably in a spray tank. The mass fraction of water, based on the total mass of the spray mixture, is preferably 80% to 99.99%, preferably 90% to 99.9%, in particular 95% to 99%. However, the mass fraction can also be higher or lower, depending on the application rate of the active ingredients used. It is preferred to spray the spray mixture at a maximum of 1000 liters, preferably 50 liters to 600 liters, in particular 100 liters to 400 liters of water per hectare, depending on the application rate of the active ingredients and the type and number of plants. The spray mixture is preferably applied to the plant via an irrigation system selected from the group consisting of micro-irrigation systems, sprinkler systems, and drip systems. The composition is applied to plant seeds using various methods for seed application. Such methods are also called seed treatment methods. Such seed treatment methods are described, for example, in W02020225003A1. The composition can also be applied to the plants by means of plant-pollinating insects, so-called "pollinators," such as bumblebees or bees. If necessary, the composition is diluted with water to the desired application concentration. diluted. However, the composition is preferably used undiluted. The spread of chemical plant protection products by pollinating insects is described, for example, in WO2011026983A1. Biological plant protection products can also be spread in a similar way. It is advantageous if the pollinators are not affected or harmed by the active ingredient or the composition. If biocides are used in the formulations, they are selected so that they do not harm any microorganisms contained in the composition according to the invention. This means that the microorganisms in the formulation are only slightly or not at all restricted in their viability and / or germination capacity. An active ingredient composition containing conidia of Paecilomyces lilacinus as a microbiological agent can be used for the biological control of plant-parasitic nematodes. When using the spores of Talaromyces flavus, the preparation can be used to control Verticillium dahliae, a pathogen that causes economically significant wilt in cotton. Compositions containing spores of Metartiizium rileyi (Nomuraea rileyi) can be used to control the caterpillars of various harmful lepidopteran species, such as Helicoverpa armigera and Spodoptera exigua. Application of the composition using the conidia of Penicillium bilaii increases the availability of mineral phosphorus in the soil. Preferred agricultural applications for the active ingredient compositions are arable farming, horticulture and ornamental plant cultivation, viticulture, and cotton cultivation. Fruit and vegetable cultivation is particularly preferred. Preferred fruits are pome fruits, stone fruits, berries, and nuts. Preferred vegetables are root vegetables, sprout vegetables, tuber vegetables, bulb vegetables, leafy vegetables, leafy vegetables, leaf lettuces, seed vegetables, and fruit vegetables. The use of polyester as a dispersant for the agricultural active ingredient is essential for the beneficial properties of the composition. A further subject of the invention is therefore the use of at least one polyester as a dispersant for one or more agricultural active ingredients. As already explained above and demonstrated in the examples below, the polyester exhibits good dispersing properties, but is also biodegradable and toxicologically safe. In particular, sedimentation of the agricultural active ingredient is reduced. Of particular relevance, however, is that particle growth of the active ingredients is slowed by agglomeration or Oswald ripening. A further object of the invention is therefore the use of at least one polyester to reduce the particle growth of one or more agricultural active ingredients dispersed in a carrier liquid. Even without further explanation, it is assumed that a person skilled in the art can utilize the above description to the fullest extent possible. The preferred embodiments and examples are therefore to be understood merely as descriptive and in no way as limiting disclosures. The subject matter of the present invention is explained in more detail with reference to Figures 1 to 3, without the subject matter of the present invention being intended to be limited thereto. FIG. 1 shows the blooming effect of suspension concentrate SC-1 FIG. 2 shows the blooming effect of suspension concentrate SC-2. FIG. 3 shows the blooming effect of suspension concentrate SC-3. The following examples are provided solely to illustrate the implementation of this invention to those skilled in the art. They do not constitute any limitation of the claimed subject matter. Examples 1. Raw materials: Dispersants (dispersing additives): - BREAK-THRU® DA 647 (Evonik): an oxirane phenyl polymer with oxirane monooctyl ether (CAS number: 83653-00-3, the active content is 100 wt.%. - AGRILAN® 1015 (Nouryon): salt of a polyether phosphate ester (CAS number: 2423961-63-9), the active content is 50% by weight. - TEXCARE® SRN 170 Terra (Clariant): a water-soluble, non-ionic surfactant based on polyester, the active content is 70% by weight. - TEXCARE® SRN 260 Terra (Clariant): a water-soluble, non-ionic surfactant based on polyester, the active content is 60% by weight. - BREAK-THRU® DA 675 (Evonik): an organo-modified, non-ionic polymer (the active content is 40 wt.%. - Polyesters 1 to 5 (synthesis see below): water-soluble, non-ionic surfactants, the active content is 100%. Defoamers: - BREAK-THRU® AF 9903 (Evonik): a polysiloxane polyether. Wetting agent: TOMADOL® 1-5 (Evonik): a non-ionic, ethoxylated alcohol Thickener: - Xanthan gum (Xanthan gum) (Carl Roth) Active ingredients: - Sulfur powder (Thermo Fisher Scientific; solubility: insoluble in water) - Trichoderma Harzianum (RHIZO-MIC UG) - Azoxystrobin (SigmaAldrich; Solubility: practically insoluble in water (6.7 mg-T 1 at 20 °C)) - Difenoconazole (ZHEJIANG RAYFULL CHEMICALS CO., LTD; Solubility: practically insoluble in water (15 mg-T 1 at 25 °C)) - Imidacloprid (Cayman Chemical Company; Solubility: very slightly soluble in water (0.61 g 1 at 20 °C)) - Acetamiprid (SigmaAldrich; Solubility: slightly soluble in water (4.25 gF 1 at 25 °C)) Carrier fluids: - BREAK-THRU® BP 787 (Evonik): a biodegradable polyether-based carrier fluid. Water 2. Measurement methods: Gel permeation chromatography (GPC): GPC measurements to determine polydispersity (M w / M n ), the weight-average molecular weight (M w ) and the number average molecular weight (M n ) were carried out under the following measurement conditions: column combination SDV 1000 / 10000 Ä (length 65 cm), temperature 30 °C, THF as mobile phase, flow rate 1 ml / min, sample concentration 10 g / l, RI detector, evaluation against polypropylene glycol standard. Determination of the hydroxyl number (OH number): The hydroxyl number was determined using the phthalic anhydride (PSA) method based on ASTM D 4274 C (2023 edition). The samples were treated with phthalic anhydride in the presence of pyridine, and the consumption of phthalic anhydride was determined by potentiometric titration (Metrohm's Eco Titrator) with 0.5 N sodium hydroxide solution. Determination of the acid number: The acid number determination was carried out using a titration method based on DIN EN ISO 2114 (June and November 2006 editions). Particle size distribution: The particle size distribution was determined using a Mastersizer 3000 from Malvern Panalytical GmbH. The Mastersizer 3000 measures the particle size distribution using laser diffraction. The particle size distribution indicates the number of particles that fall into each of the different size ranges, expressed as a percentage of the total number of all sizes in the sample examined. Important parameters for the particle sizes are cumulative data, such as DV(50) and DV(90). At DV(50), 50% of all particles have a diameter smaller than the DV(50). The DV(50) value therefore forms the median of the particle size distribution. At DV(90), 90% of all particles have a diameter smaller than the DV(90). If DV(90) = 7 pm, this means that 90% of the particles are smaller than 7 pm and 10% are larger than 7 pm. To measure the particle size, the formulations were diluted 1:100 with water (1 part of the formulation to 100 parts water). Blooming effect: The blooming effect is the self-dispersion of a formulation in water. A defined amount of the formulation (2 mL) is injected into a defined amount of water (100 mL). The resulting cloud is visually assessed. Storage test: Storage stability is determined using CIPAC MT 46.1.3 (accelerated storage test). The sample is placed in a glass bottle (or other suitable container), which is then sealed and placed in an oven at a specific temperature (54 °C) for a defined period of time (two weeks). Two weeks at 54 °C corresponds to two years of storage at room temperature. The physicochemical parameters are measured and compared before and after storage. Biodegradability: The biodegradability data are based on data from the dispersant manufacturers and were determined based on tests according to OECD 301 F and OECD 302 B, respectively. Table 1 summarizes the corresponding data for the dispersant additives used. Table 1 : Biodegradability of dispersing additives 3. Suspension concentrates SC-1 to SC-5 (active ingredient: sulfur) The suspension concentrates SC-1 to SC-5 tested contain sulfur as the active ingredient, dispersed in water as the carrier liquid. The composition of the suspension concentrates is listed in Table 2. To prepare the suspension concentrates, the respective ingredients were stirred for 3 hours in a beater mill equipped with glass beads (3 mm diameter) and a double-plate stirrer. The results of the application-related Test results can also be found in Table 2. The concentrations indicated therein refer to the active content of the respective raw material. For example, the concentration of 30g / L in the case of TEXCARE® SRN 260 Terra with an active content of 60 wt.% corresponds to 30g of active ingredient per liter and thus 50g of raw material per liter. Table 2*: Suspension concentrates SC-1 to SC-5 and their application properties * g / L based on the active content ** the higher viscosity slows down the agglomeration of the particles A summary of Tables 1 and 2 clearly shows the advantages of the inventive suspension concentrates SC-2 and SC-3 over the non-inventive suspension concentrates SC-1, SC-4, and SC-5. The inventive suspension concentrates SC-2 and SC-3 show results that are just as good as the non-inventive example SC-1, both in terms of the blooming effect and the appearance before and after the storage test. All three suspension concentrates are homogeneous liquids and show a good blooming effect. The particle sizes are somewhat larger than those of SC-1 in some cases, but are nevertheless entirely acceptable. The particle size factor, which describes the relative increase in the DV(90) value due to storage, is also consistently acceptable for SC-1 to SC-3.The decisive advantage of the suspension concentrates SC-2 and SC-3 according to the invention over the suspension concentrate SC-1, which is not according to the invention, lies essentially in the fact that the dispersing additives used are biodegradable and do not require labeling. Although the dispersing additive is also biodegradable in the suspension concentrate SC-4, which is not according to the invention, SC-4 does not exhibit good performance characteristics. The appearance of SC-2 and SC-3 before and after storage is significantly better than that of SC-4. SC-4 is pasty and contains lumps, whereas SC-2 and SC-3 are homogeneous liquids. Because SC-4 is a very lumpy paste, the particle size distribution cannot be measured. Due to its consistency, a blooming effect cannot be determined for SC-4. A similar picture emerges when comparing SC-2 and SC-3 with SC-5, which does not contain a dispersing additive.SC-5 is also pasty and contains small particles. A blooming effect cannot be determined. However, unlike SC-4, the particle size distribution of SC-5 is still measurable despite its consistency and is acceptable, at least prior to storage. The particle size increases after storage and appears to be comparable to that of SC-3. However, it should be noted that due to the high viscosity of SC-5, agglomeration is significantly slower than that of SC-3. Therefore, storage values for SC-5 are ultimately not meaningful. 4, Dispersion concentrates DC-1 and DC-2 (active ingredient: Trichoderma Harzianum) The dispersion concentrates DC-1 and DC-2 contain Trichoderma Harzianum as the active ingredient, dispersed in BREAK-THRU® BP 787 as the carrier liquid. The composition of the dispersion concentrates is listed in Table 3. To prepare the dispersion concentrates, the ingredients were stirred for one hour in a beater mill equipped with a double-plate stirrer. The results of the application testing can also be found in Table 3. The concentrations stated therein refer to the active content of the raw material used. For example, the concentration of 5 wt.% in the case of of TEXCARE® SRN 260 Terra with an active content of 60 wt.%, therefore 5 wt.% active ingredient and thus 8.33 wt.% raw material. Table 3*: Dispersion concentrates and their application properties * % wt.% based on the active content The appearance of the dispersion concentrates DC-1 and DC-2 is OK or acceptable before and after storage. They are essentially homogeneous liquids. In the case of DC-2, a slight settling of the active ingredient is observed after storage, albeit to a perfectly acceptable extent. The particle size of the active ingredient decreases during the storage test. Therefore, agglomeration is not observed. Rather, a reduction in the size of the active ingredient particles occurs during storage. This is also illustrated by the respective particle size factors of less than 1. 5. Synthesis of Polyesters 1 to 5 Table 4: Raw materials Raw materials: MPEG 1000: Poly(ethylene glycol) monomethyl ether, weight average molecular weight M w = 1000 g / mol MPEG 1500: Poly(ethylene glycol) monomethyl ether, weight average molecular weight M w = 1500 g / mol BuPEG 900: Poly[(ethylene glycol)-co-(propylene glycol)]monobutyl ether, weight average Molecular weight M w = 900 g / mol with a proportion of 30 wt% propylene glycol and 70 wt% ethylene glycol units PEG 1000: Poly(ethylene glycol), weight average molecular weight M w = 1000 g / mol PEG 1500: Poly(ethylene glycol), weight average molecular weight M w = 1500 g / mol Implementation: Step 1 : The raw materials required for step 1, as shown in Table 4, were placed in a reaction vessel equipped with a thermostat, stirrer, and distillation unit. The order of raw materials addition was arbitrary. The reactor contents were inerted with nitrogen and heated to a reaction temperature of 165 °C. Solid dimethyl terephthalate dissolved in the process. Dimethyl phthalate is liquid and readily soluble. The resulting methanol was continuously distilled off at atmospheric pressure. Over a period of 2-3 hours, the reaction temperature was gradually increased to 220 °C. Any methanol still formed was removed by distillation. The reaction mixture was further stirred at 220 °C until the methanol distillation ended (approx. 1 hour). The reactor contents were then cooled to 100-150 °C. Step 2: The polyethers required for step 2 according to Table 4 were added to the reaction mixture. The order is optional. The reactor was then inerted again with nitrogen. The reactor contents were heated to 230 °C, then the internal reactor pressure was The pressure was reduced to approximately 20 mbar over a period of approximately 1 h using a vacuum pump. Distillation of methanol and any other volatile compounds such as ethylene glycol and 1,2-propylene glycol continued. After approximately 4 hours of post-reaction at 230 °C / approximately 20 mbar, the distillation was complete. The reactor was depressurized to atmospheric pressure with nitrogen, the finished polyester was cooled to approximately 100 °C, and bottled. Upon cooling to room temperature, the products solidified. Table 5: Analytical data 6. Suspension concentrates SC-6 to SC-10 (active ingredient: sulfur) The suspension concentrates SC-6 to SC-10 tested contain sulfur as the active ingredient, dispersed in water as the carrier liquid. The composition of the suspension concentrates is listed in Table 6. To prepare the suspension concentrates, the corresponding ingredients were stirred for 3 hours in a hammer mill equipped with glass beads (3 mm diameter) and a double-plate stirrer. The results of the application tests can also be found in Table 6. The concentrations stated therein refer to the active content of the respective raw material. For example, the concentration of 30 g / L in the case of Polyester 1 with an active content of 100 wt.% therefore corresponds to 30 g of active ingredient per liter and thus 30 g of raw material per liter. Table 6*: Suspension concentrates SC-6 to SC-10 and their application properties * g / L based on the active content A look at Tables 1 and 6 together clearly shows the advantages of the inventive suspension concentrates SC-6 to SC-10 over the non-inventive suspension concentrates SC-1, SC-4 and SC-5. The inventive suspension concentrates SC-6 to SC-10 show results that are just as good as the non-inventive example SC-1, both in terms of the blooming effect and the appearance before and after the storage test. All five suspension concentrates are homogeneous liquids and show a good blooming effect. The particle sizes are somewhat larger than those of SC-1 in some cases, but are nevertheless entirely acceptable. The particle size factor, which describes the relative increase in the DV(90) value due to storage, is also consistently acceptable for SC-6 to SC-10.The decisive advantage of the suspension concentrates SC-6 to SC-10 according to the invention over the non-inventive suspension concentrate SC-1 lies essentially in the biodegradability of the dispersing additives used. The appearance of SC-6 to SC-10 before and after storage is significantly better than that of SC-4. 7. Suspension concentrates SC-11 to SC-17 (active ingredients: azoxystrobin and difenoconazole) The suspension concentrates SC-11 to SC-17 tested contain the active ingredients azoxystrobin and difenoconazole, dispersed in water as a carrier liquid. The composition of the suspension concentrates is listed in Table 7. To prepare the suspension concentrates, the corresponding ingredients were stirred for 3 hours in a hammer mill equipped with glass beads (3 mm diameter) and a double-plate stirrer. The results of the application tests can also be found in Table 7. The concentrations stated therein refer to the active content of the respective raw material. For example, the concentration of 60 g / L in the case of TEXCARE® SRN 260 Terra with an active content of 60 wt.% corresponds to 60 g of active ingredient per liter and thus 100 g of raw material per liter. Table 7*: Suspension concentrates SC-11 to SC-17 and their application properties * g / L based on the active content The overview of Table 1 and Table 7 clearly shows the advantages of the suspension concentrates SC-13 and SC-15 to SC-17 according to the invention compared to the non-inventive suspension concentrates SC-11, SC-12 and SC-14. Suspension concentrates SC-13 and SC-15 to SC-17 show equally good results as the non-inventive example SC-11, both in terms of blooming effect and appearance before and after the storage test. All four suspension concentrates are homogeneous liquids and exhibit a good blooming effect. The particle sizes are comparable and acceptable to those of SC-11. The particle size factor, which describes the relative increase in the DV(90) value due to storage, is also consistently acceptable for SC-13 and SC-15 to SC-17. The decisive advantage of the inventive suspension concentrates SC-13 and SC-15 to SC-17 over the non-inventive suspension concentrate SC-11 lies essentially in the fact that the dispersing additives used are biodegradable.Although the biodegradability of the dispersing additive is also present in the non-inventive suspension concentrate SC-14, SC-14 does not exhibit good performance characteristics. The appearance of SC-13 and SC-15 to SC-17 before and after storage is significantly better than that of SC-14. SC-14 is solid and contains granules, whereas SC-13 and SC-15 to SC-17 are homogeneous liquids. Because SC-14 is solid, the particle size distribution cannot be measured. Due to its consistency, a blooming effect cannot be determined for SC-14. A similar picture emerges when comparing SC-13 and SC-15 to SC-17 with SC-12, which does not contain a dispersing additive. SC-12 is also solid and contains granules. A blooming effect, as well as the particle size distribution, cannot be determined either. 8. Suspension concentrates SC-18 to SC-21 (active ingredient: imidacloprid) The suspension concentrates SC-18 to SC-21 tested contain imidacloprid as the active ingredient, dispersed in water as the carrier liquid. The composition of the suspension concentrates is listed in Table 8. To prepare the suspension concentrates, the corresponding ingredients were stirred for 3 hours in a hammer mill equipped with glass beads (3 mm diameter) and a double-plate stirrer. The results of the application tests can also be found in Table 8. The concentrations stated therein refer to the active content of the respective raw material. For example, the concentration of 40 g / L in the case of BREAK-THRU® DA 675 with an active content of 40 wt.% corresponds to 40 g of active ingredient per liter and thus 100 g of raw material per liter.Due to the higher solubility of imidacloprid in water compared to the active ingredients shown so far, the particle size distribution cannot be used for the application testing of the formulations (see Section 1. Raw materials). Table 8*: Suspension concentrates SC-18 to SC-21 and their application properties * g / L based on the active content The combination of Tables 1 and 8 clearly shows the advantages of the inventive suspension concentrates SC-20 and SC-21 over the non-inventive suspension concentrate SC-18. The inventive suspension concentrates SC-20 and SC-21 show results just as good as the non-inventive example SC-18, both in terms of the blooming effect and the appearance before and after the storage test. All suspension concentrates are homogeneous liquids and display a good blooming effect. The decisive advantage of the inventive suspension concentrates SC-20 and SC-21 over the non-inventive suspension concentrate SC-18 is essentially that the dispersing additives used are biodegradable. The comparison with SC-19, which contains no dispersing additive, clearly demonstrates the advantages of the inventive suspension concentrates SC-20 and SC-21. SC-19 does not display good application properties.The appearance of SC-20 and SC-21 before and after storage is significantly better than that of SC-19. SC-19 is solid and contains lumps, whereas SC-20 and SC-21 are homogeneous liquids. Due to its consistency, no blooming effect can be determined for SC-14. 9. Suspension concentrates SC-22 to SC-25 (active ingredient: acetamiprid) The suspension concentrates SC-22 to SC-25 tested contain acetamiprid as the active ingredient, which is dispersed in water as the carrier liquid. The composition of the suspension concentrates is listed in Table 9. The corresponding The ingredients were stirred for 3 hours in a hammer mill equipped with glass beads (3 mm diameter) and a double-plate stirrer. The results of the performance tests can also be found in Table 9. The concentrations stated there refer to the active content of the respective raw material. For example, the concentration of 23 g / L in the case of BREAK-THRU® DA 675 with an active content of 40 wt.% corresponds to 40 g of active ingredient per liter and thus 57.5 g of raw material per liter. Due to the higher solubility of acetamiprid in water compared to the active ingredients shown so far, the particle size distribution cannot be used for performance testing of the formulations (see Section 1. Raw Materials). Table 9*: Suspension concentrates SC-22 to SC-25 and their application properties * g / L based on the active content The overview of Tables 1 and 9 clearly shows the advantages of the suspension concentrates SC-24 and SC-25 according to the invention compared to the non-inventive suspension concentrate SC-20. The suspension concentrates SC-24 and SC-25 according to the invention show equally good results as the non-inventive example SC-20, both with regard to the blooming effect and the appearance before and after the storage test. All suspension concentrates are homogeneous liquids and show a good blooming effect. The decisive advantage of the suspension concentrates SC-24 and SC-25 according to the invention compared to the non-inventive suspension concentrate SC-22 is essentially that the dispersing additives used are biodegradable. The comparison with SC-23, which does not contain The dispersing additive clearly demonstrates the advantages of the suspension concentrates SC-24 and SC-25 according to the invention. SC-23 does not exhibit good performance characteristics. The appearance of SC-24 and SC-25 before and after storage is significantly better than that of SC-23. SC-23 is solid and contains lumps, whereas SC-24 and SC-25 are homogeneous liquids. Due to its consistency, no blooming effect can be determined for SC-23.
Claims
Patent claims 1. Composition containing: (A) at least one polyester, (B) at least one agricultural active substance, (C) a carrier liquid, (D) and optionally at least one further additive.
2. Composition according to claim 1, characterized in that the polyester is obtainable by polycondensation of at least one aromatic polycarboxylic acid or its ester and at least one polyol and optionally at least one monool and an optional subsequent further reaction of hydroxyl groups.
3. Composition according to claim 2, characterized in that no aliphatic polycarboxylic acids or their esters are reacted during the polycondensation.
4. Composition according to one of claims 2 to 3, characterized in that the aromatic polycarboxylic acid is selected from the group consisting of substituted and unsubstituted benzenedicarboxylic acids.
5. Composition according to one of claims 2 to 4, characterized in that the aromatic polycarboxylic acid is selected from the group consisting of phthalic acid, isophthalic acid and terephthalic acid, wherein these acids may optionally carry a sulfonic acid, sulfonate, phosphonic acid or phosphonate group.
6. Composition according to one of claims 2 to 5, characterized in that - that the polyol is selected from the group consisting of C2-C4-alkylenediols and polyetherdiols based on C2-C8-alkylene oxides and / or - that the monool is obtainable by polyaddition of at least one Cz-Cs-alkylene oxide to a Ci-Ce-alcohol.
7. Composition according to one of claims 1 to 6, characterized in that the polyester contains or consists of the following units (a1), (a2), (b) and (c) and optionally (d): where: R 1 is each independently selected from H, SO3; PO3 2 ', substituted or unsubstituted alkyl or acyl radicals, preferably having 1 to 6 carbon atoms, in particular having 1 to 4 carbon atoms, where, if R 1 carries a charge, at least one counterion selected from the group consisting of organic cations, inorganic cations and H + to balance the load; R 2 is each independently selected from alkylene radicals, preferably having 2 to 8 carbon atoms, in particular having 2 to 3 carbon atoms; R 3is each independently selected from substituted or unsubstituted aromatic radicals; R 4 is each independently selected from hydrocarbon radicals, preferably having 2 to 4 carbon atoms, in particular having 2 to 3 carbon atoms; a = 1 to 200; b = 2 to 3; c = 2 to 3.
8. Composition according to one of claims 1 to 7, characterized in that the polyester contains or consists of the following units (a), (b) and (c) and optionally (d): (a) (b) (c) (d) where: R 1 is each independently selected from H, SO3', PO3 2 ', substituted or unsubstituted alkyl or acyl radicals, preferably having 1 to 6 carbon atoms, in particular having 1 to 4 carbon atoms, where, if R 1 carries a charge, at least one counterion selected from the group consisting of organic cations, inorganic cations and H +to balance the load; R 2 is each independently selected from alkylene radicals, preferably having 2 to 8 carbon atoms, in particular having 2 to 3 carbon atoms; R 3 is each independently selected from substituted or unsubstituted aromatic radicals; R 4 is each independently selected from hydrocarbon radicals, preferably having 2 to 4 carbon atoms, in particular having 2 to 3 carbon atoms; a = 1 to 200; b = 2 to 3; c = 2 to 3.
9. Composition according to any one of claims 1 to 8, wherein the polyester is selected from compounds of formula (I): Formula (I) where: R 1 is each independently selected from H, SO5\ PO3 2, substituted or unsubstituted alkyl or acyl radicals, preferably having 1 to 6 carbon atoms, in particular having 1 to 4 carbon atoms, where, if R 1 carries a charge, at least one counterion selected from the group consisting of organic cations, inorganic cations and H + to balance the load; R 2 is each independently selected from alkylene radicals, preferably having 2 to 8 carbon atoms, in particular having 2 to 3 carbon atoms; R 3 is each independently selected from substituted or unsubstituted phenylene radicals; R 4 is each independently selected from alkylene radicals, preferably having 2 to 4 carbon atoms, in particular having 2 to 3 carbon atoms; a = 1 to 200; d = 1 to 200; e = 1 to 20.
10. Composition according to one of claims 1 to 9, characterized in that the weight-average molecular weight of the polyester is from 100 g / mol to 5000 g / mol, preferably from 500 g / mol to 3000 g / mol, in particular from 900 g / mol to 1800 g / mol.
11. Composition according to one of claims 1 to 10, characterized in that the agricultural active ingredient is selected from the group consisting of algicides, acaricides, aphicides, bactericides, biocides, fungicides, larvicides, helminthicides, herbicides, insecticides, nematicides, molluscicides, ovicides, rodenticides, growth regulators, plant strengtheners, biostimulants, and inoculates; preferably from the group consisting of fungicides, herbicides, insecticides, and biostimulants; in particular from the group consisting of fungicides, herbicides, and insecticides.
12. Composition according to one of claims 1 to 11, characterized in that the carrier liquid is selected from the group consisting of water, mineral oils, mineral oil products, vegetable oils, vegetable oil derivatives, polyethers, polyglycerol esters, sorbitan fatty acid esters, citric acid esters and mixtures thereof.
13. Composition according to one of claims 1 to 12, characterized in that the further additive is selected from the group consisting of thickeners, defoamers and wetting agents.
14. Composition according to one of claims 1 to 13, characterized in that it contains or consists of the following components, based on the total mass of the composition: (A) in a mass fraction of 0.5% to 15%, preferably 0.75% to 10%, in particular 1% to 6%; (B) in a mass fraction of 5% to 80%, preferably 10% to 60%, in particular 20% to 50%; (C) in a mass fraction such that the sum of the mass fractions of all the components of the composition equals 100%; and optionally (D) in a mass fraction of 0% to 20%, preferably 0.1% to 10%, in particular 0.15% to 7.5%.
15. Composition according to one of claims 1 to 14, characterized in that it is liquid or flowable.
16. Composition according to one of claims 1 to 15, characterized in that it is a dispersion, preferably a suspension.
17. Use of the composition according to any one of claims 1 to 16 for the treatment of plants and / or seeds and / or soils.
18. Use of at least one polyester as a dispersant for one or more agricultural active ingredients, each according to the specifications of any one of claims 1 to 16.
19. Use of at least one polyester for reducing the particle growth of one or more agricultural active ingredients dispersed in a carrier liquid, in each case according to the specifications of any one of claims 1 to 16.
Citation Information
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