HU177568B - Process and composition of polymeric base for /steeping/treating seeds in discrete spots - Google Patents

Abstract

The invention relates to a method and a composition for pickling seeds. The aim of the invention is to treat the seed so that on the one hand by abrasion no pollutants fall off the seed and can pollute the environment and on the other hand, the germination process is not affected by the Verizmittelueberzug. In addition, the consumption of mordant should be reduced. According to the invention, the composition consists of a copolymer of vinyl acetate and vinyl monomer, a water-soluble polymeric protective colloid, a pickling agent, water and other excipients. The composition is sprayed onto the seed in such a way that as a rule no closed coating layer is formed. Rather, the surface of the seed should only be covered by discrete film spots.

Description

The present invention relates to a novel polymer-based composition for environmentally friendly seed dressing. The invention also relates to a novel process for environmentally friendly seed dressing.

Dressing agents, applied to the surface of the seed to protect it against fungus and insect pests, have long been used in agriculture.

For a long time, development work has been limited to improving the active ingredients. They have been developing dressing agents (especially fungicidal and insecticidal compounds) with increasing potency, favorable spectrum, and systemic action, and have sought to minimize their toxicity to warm-blooded fish and fish. í

The dressing agents are applied according to the classical methods in the form of a powder mixture or an aqueous composition (solution, emulsion or suspension) to the surface of the seeds to be treated. A common disadvantage of classical dressing compositions, however, is that the active ingredient adheres only loosely to the surface of the seeds and there is a high loss of dust during transport, storage or sowing. Therefore, a significant proportion (about 20-40%) of the active ingredient is wasted, at the same time contaminating the environment and endangering the human body, particularly those involved in seed dressing treatment. Taking into account the losses of active ingredients, in the case of classical dressing compositions, the seeds must be treated with higher doses of active ingredient in order to provide a safe protection against biological damage to the seed and the developing plant 3.

Recognizing these drawbacks of classical dressing compositions, in the last two decades, dressing compositions 5 have been developed which provide enhanced adhesion of the active ingredient to the seed surface. No. 3,113,399. In addition to dressing agent, water, and adjuvants (surfactants, dyes, and the like), the dressing compositions disclosed in U.S. Pat. No. 5,128,195, contain polymers that after drying the composition on the treated seeds are water insoluble, high strength, abrasion resistant, forming a permeable coating. During the dressing, this composition forms 5 continuous coatings on the seeds that cover the entire core surface. The coated polymer prevents the dressing agent from leaving the core surface. however, due to its water vapor permeability, it allows germination of seeds. As polymeric coatings, 0 epoxy ester resins. styrene-butadiene copolymers, polyvinyl acetate and the like are used. In addition to the water vapor permeability of the polymer, the patent emphasizes the importance of mechanical properties, but does not mention the importance of the stretching properties of the film. The seeds swell before they germinate and absorb a significant amount of water during germination, and their diameter and volume increase significantly. If the polymeric film is coherent and not sufficiently elastic, due to its mechanical properties it inhibits the seed in water uptake and germination. On the other hand, if the film is very elastic, it cannot be hard enough, it has less abrasion resistance and is therefore less able to protect the core from mechanical stress.

It is known that seeds are metabolized by type, variety and variety and are still unexplored in their details with their environment during storage. Metabolism during germination is an even more complex and less well-known process. In the case where a seed-related polymer film is formed, the cover film inevitably interferes or alters core metabolism. 3698133, 3803761, 3621612, 3598565 and 3808740. United States of America, and U.S. Patent No. 1071804; The methods described in the British patent utilize this metabolic effect to temporarily inhibit the germination of certain seed types or to change the germination time or germination rate. No. 2,218,785. according to the German Federal Patent Application, a poly (nitroalkyl acrylate) or poly (nitroalkyl methacrylate) coating film is applied to the seeds; this polymer has antifungal activity. The technical specification emphasizes that the polymer film can only be applied to seeds with excellent germination capacity, which implies that the polymer adversely affects the germination process of the seeds.

Given that a given polymer can influence the metabolism of a particular core type in a variety of ways, depending on the thickness of the applied layer, the degree of swelling of the polymer, film defects, and many, often unrecognizable or uncontrollable factors, , it is not theoretically possible to predict with sufficient certainty what a coherent polymeric coating would be best suited to a particular seed. It is even less possible to design contiguous polymer coatings which safely produce the desired effect on different core types, since the metabolic processes of each core type (which are not known at the present state of the art) are different. Therefore, lengthy preliminary studies are required for each core type to select the most suitable continuous polymer coating, and even then, it can be expected that the applied polymer layer will adversely affect the core metabolism.

Thus, there is a great need for a universally applicable dressing composition and dressing process that can at least increase the adhesion of the active ingredient to the seeds as in known polymer-based dressing compositions and processes, while minimizing the effect of the polymer on seed metabolism.

In our experiments it has been found that the effect of the polymer on the seed metabolism can be eliminated or at least minimized if the seed dressing has a water insoluble but significantly swellable polymer with a high tensile elongation (at least 200%, preferably at least 400%). The composition is applied to the surface of the seeds with a non-contiguous water-insoluble film, but only so much of the fine droplets of the water-insoluble polymer are applied so that the droplets adhering to the seed cannot form a coherent film.

The basic quality requirement for classical dressing procedures is that the seeds cover the entire seed surface. apply the dressing in a continuous coat. The importance of a continuous coating covering the entire surface of the core is disclosed in U.S. Patent No. 3,113,339. Also, U.S. Patent No. 4,600,600 emphasizes that from the theoretical point of view, pests are able to exert undisturbed effects on free core surfaces left over by lack of continuity of coating. However, the results of our experiments have confirmed that this consideration does not apply to cases where the dressing agent contains a highly elastic, water-insoluble but substantially water-swellable polymer. The active ingredients, applied in the form of discrete patches on the surface of such a core, exert their pest control activity over the area of the patches, thus providing completely safe protection to the exposed core surfaces.

No. 3,803,761. U.S. Pat. No. 4,800,121 discloses that only polymers having a tensile elongation of less than 200% and cracking under seed germination conditions can be used to form continuous polymer coatings. The patent cited cited explicitly disadvantages polymers which do not simply elongate under the conditions of germination of the seeds, in which case they utilize a significant part of the biological energy of the core to break through the coating, which leads to loss of core viability. However, our experimental results have confirmed that this finding does not apply to the application of dressing agents in the form of discrete patches on the surface of the seeds. This allows the seeds to contact their environment unhindered on their exposed surfaces and to carry out a smooth metabolism, including the ability to germinate freely on the exposed surfaces without the use of excess energy. Discontinuous film patches formed from discrete polymer / drug droplets applied to the nucleus have no or negligible influence on the metabolism of the nucleus. It also follows that when applying discrete drops, the composition of the present invention can handle a wide variety of seed types without fear of unanticipated adverse biological side effects.

Thus, in one aspect, the invention relates to novel type compositions for seed dressing. Compositions of the invention

10 to 50% by weight of known dressing agents,

10 to 40% by weight of a water-insoluble film-forming polymer,

2 to 30% by weight of an additive, and

Contain required to reach 100% by weight of water, the compositions according to the invention is characterized in that water-insoluble film-forming polymer is a vinyl monomer with at least 200%, preferably at least 400% elongation at break and 30 ° C less vinyl acetate and at a 10C ^c glass transition temperature in containing a copolymer having a glass transition temperature of less than.

The invention further relates to a method for seed dressing. In the process of the invention, the dressing composition as defined above is optionally applied, after dilution in water, to discrete film patches on the surface of the seeds to be treated. Discrete film spots are preferably formed by spraying. Discrete film spots may cover 30-90%, preferably 30-70%, of the total core area.

The compositions according to the invention may particularly advantageously comprise copolymers of vinyl acetate and vinyl vinegar as a vinyl acetate copolymer. The patchy films formed from such copolymers, when contacted with water, soften considerably during water uptake and have a tensile elongation of several hundred percent (usually 500-900%) with a low tensile force. The properties of the film spots formed from the copolymer droplets thus change favorably in germination when the seed enters wet soil. At the same time, these film patches, when dry, are sufficiently solid, adhere well, protect the core and have good wear resistance. A further advantage of the vinyl acetate-vinyl versatile copolymer over pure polyvinyl acetate and other copolymers used to coat coatings is that the copolymer is extremely stable, insensitive to hydrolysis, compatible with most plant protection products and can be stored together.

A further requirement for vinyl acetate copolymers is that the copolymers have a glass transition temperature of less than 30 ° C (preferably less than 20 ° C). The glass transition temperature of polyvinyl acetate is, according to the literature, between 28 ° C and 35 ° C, depending on the measurement method used. As it is known, the glass transition temperature (T _fcAB ) of the copolymers changes at first approximation according to the formula (T _g , _A - A + T _fc B B): 100, where

Tg. _The components of "A" formed with homopolymer glass transition temperature,

A is the percentage of component A in the copolymer,

Tg.B is ^the glass transition temperature of the homopolymer component B, and

B is the percentage of component "B" in the copolymer.

From the given equation, it is easy to calculate the composition of the copolymers to be obtained to achieve the desired glass transition temperature. The following is a list of relevant information on some of the copolymerization partners that can be used to make the copolymers:

Monomer T _g , C ° vinyl veratate (-2) - (- 10) vinyl laurate-75 vinyl hexoate-20 vinyl butyrate-5 vinyl propionate-7 butyl acritate-54 sec-butyl acrylate-22 dodecyl-3-acrylate

2-ethylbutyl acrylate - 50

2-ethylhexyl acrylate-50 heptyl acrylate-38 propyl acrylate-37

As can be seen from the list, the term "vinyl monomer" generally refers to compounds containing a vinyl group (CH ₂ = CH-) which may be vinyl esters or acrylates.

The compositions of the invention contain, as additives, protective colloids, anionic and / or nonionic surfactants, optionally, depending on the amount and quality of the surfactant, an antifoaming agent and optionally coloring agents (dyes and / or pigments) in a total amount of 2 to 30% by weight.

The protective agent used is intended to ensure the stability of the droplets of vinyl acetate copolymer dispersed in an aqueous medium and to allow relatively large amounts of the active ingredient to be incorporated into the composition without loss of stability. The requirement for a protective colloid is to form a solid film with good mechanical properties when dry and not to become sticky even when stored at 80% RH. It is also a requirement that the protective colloid should be well soluble even in water at +10 ° C. The compositions of the invention may conveniently contain dextrins, water-soluble cellulose derivatives, polyacrylamides, polyvinyl alcohols, or polyethers of sufficiently high molecular weight as protective colloids. An important requirement for polymers is that they should not contain low molecular weight impurities (e.g. unreacted monomer) which are harmful to the seeds. The compositions of the invention generally contain from 1% to 10% by weight of the water-soluble protective colloid.

The compositions of the invention may contain, for example, products marketed under the trade name Tensiofix as anionic or nonionic surfactants. The compositions generally contain from 1% to 20% by weight of surfactant.

The compositions of the present invention may contain compounds known in the art as dressing agents and used for such purposes, in particular fungicidal and / or insecticidal activity. Examples of fungicidal active compounds which may be used include the following fungicidal compounds: copper oxyquinolate, 1-butylcarbamoylbenzimidazole-2-methylcarbamate (Benomil), N-trichloromethylthiophthalimide (Folpet), N- (1,1), 2,2-Tetrachloroethylthio) -tetrahydrophthalimide (Captafol), N-trichloromethylthio-tetrahydrophthalimide (Captan), 2,3-Dihydro-6-methyl-5-carboxanilido-1,4-oxatin (5,6 ) (Carboxin), a mixture of manganese and zinc ethylene bis-dithiocarbamate (Mancoseb), 1,2-bis (3-methoxycarbonylthiureido) benzene (thiophanate methyl), 3- (3,5-dichlorophenyl) - 5-methyl-5-vinyl-1,3-oxazolidine-2,4-dione (Vinclozolin),

2,6-Dimethyl-4-tridecyl-morpholine (Tridermorph), 2- (Thiazol-4-yl) -benzimidazole (Thiabendazol), 3,4-dihydro-6-methyl-pyran-5-carboxanilide (Pyracarbolid), 2, 3-Dihydro-6-methyl-5-phenylcarbamoyl-1,4-oxatin-4,4-dioxide (Oxycarboxin), (3-trifluoromethyl-trityl) -1,2,4-triazole (Fluotrimazole), 2-methyl- 3-Furanylide (Fenfuram), 5-Butyl-2-Ethylamino-6-methyl-pinimidin-4-ol (Ethirinol), 4-Cyclododecyl-2,6-Dimethyl-Morpholine (Dodemorph), 5-Butyl-2-Dimethylamino -6-methylpyrimidin-4-ol (Dimethirimol), benzimidazol-2-ylcarbamic acid methyl ester (Carbendazim), 5-butyl-2-ethylamino-6-methylpyrimidin-4-yldimethylsulfamate (Bupirimate), 2-iodo-N-phenyl-benzamide (Benodanyl), 1,1'-piperazine-1,4-di-di (N- [2,2,2-trichloroethyl] -formamide (Triforine), 1- ( 4-Chloro-phenoxy) -3,3-dr methyl-1- (1,2,4-triazol-1-yl) -butan-2-one (Triadimefon), 4-chloro-3,5-dinitrobenzoic acid methyl ester, 2-chloro-3,5-dinitrobenzotrifluoride and 2,4-dichloro-3,5-dinitrobenzotrifluoride, tetramethylthiuram disulfide (Tiuram or TMTD), d, N- (2,6-dimethyl) f enyl) -N- (2'-methoxyacetyl) -alanine methyl ester (Ridomyl) and the like.

In a preferred embodiment, the compositions contain more than one dressing agent. Obviously, only compatible active ingredients can be used to formulate multi-component formulations. The advantage of multi-component formulations is that the seeds are protected against a very broad spectrum of pests. The compositions of the invention, when applied by the process of the invention, provide particularly good protection when at least one of the active ingredients is systemic.

The term "dressing agent" is used in the broad sense throughout the specification and the claims. In addition to the aforementioned fungicidal and insecticidal active ingredients, this term includes biologically active substances such as plant hormones (such as gibberellic acid), plant nutrient salts (such as trace element concentrates) and the like. The selection of the most suitable dressing agent or mixture of active ingredients for the purpose is within the ordinary skill in the art.

In addition to the components listed, the compositions of the invention also contain water. Preferably, the compositions are marketed in the form of aqueous concentrates having a water content of about 30% to about 60%, and these concentrates are diluted with water to the desired final concentration prior to use. The concentrates are usually diluted 1: 2 to 1: 15 with water. Our need for protection extends to both concentrates and ready-to-use dilute aqueous formulations,

Compositions diluted with water to a suitable concentration in the process of the present invention are preferably applied by spraying onto the seeds. After spraying and removal of the applied water, discrete film patches that strongly adhere to the surface of the seeds containing vinyl acetate copolymer and dressing agent remain. These discrete film patches cover 30-90% of the core surface area, preferably 30-70% of the core surface area. The vinyl acetate copolymer in discrete film patches safely prevents loss of active agent through spraying. The protective colloid is located around discrete film spots containing the active ingredient and the vinyl acetate copolymer. In some cases, a uniform coating of the protective colloid may form on the surface of the seeds, however, given that the composition contains a small amount of the protective colloid, the coating is extremely thin and dissolves upon exposure to a small amount of water. It has been found that the formation of a very thin, continuous protective colloidal layer does not interfere with the metabolism of the core.

For spray application of dressing compositions, for example, the following dressing machines can be used: Stabitox S, Stabitox SN, Mobitox (Budapest Agricultural Machinery Factory 40).

In the case of the above mentioned Hungarian-made machines, the dosage of the seed dressing should be set close to the minimum value and it is advisable to add 500 to 1500 ml / q of the diluted seed dressing. It is advisable to set a similar amount of liquid metering in other types of dressing equipment. A small amount of liquid is added so that the seed water content is only slightly increased during the seed dressing process and a coating with appropriate properties is formed without a separate drying process.

The main advantages of the process and composition of the invention can be summarized as follows:

1. The process and composition of the present invention is useful for treating a wide variety of seed types because it has little or no effect on the metabolism of the treated seeds 55.

2. The compositions of the present invention do not cause any adverse biological side effects on the treated seeds. 60

3. Due to the fact that the vinyl acetate copolymer droplets adhere sufficiently sufficiently to the treated seed to the treated seeds, the loss of active ingredient due to dusting and environmental contamination can be eliminated.

4. Given that, according to the invention, the active ⁶⁵ ingredients not fixed to the entire core surface enveloping the coating, but also discrete patches located binder, a given amount of seeds to manage - to achieve the same degree of protection - small amounts of the dressing the active substance is required such as the classic soak methods , and for dressing methods using a continuous water-insoluble polymer film.

5. Due to the fact that the process according to the invention contains a much lower amount of dressing agent on the seeds, depending on the pesticides used, it is possible to significantly reduce the adverse biological side effects in the soil, which are not yet fully known.

The method and composition of the present invention thus provide a much more advantageous opportunity than before to economically and environmentally germinate seeds.

The invention is further illustrated by the following non-limiting examples.

Example 1

The following components are mixed together: Mowilith DM 21 (Hoechst's formulation, an aqueous dispersion containing approximately 50% solids by weight, consisting predominantly of vinyl acetate / vinyl vat copolymer) 250 g

Copper oxyquinolate 75g

Carboxin 250g

Elvanol 71-30 polyvinyl alcohol (du Pont de Nemours and Corp., USA) in 10% aqueous solution 100 g

Homa Reines Milori Blau Color (Degussa, Germany) 30g

Tensiofix B 7425 (Tensia AG, Belgium) 150g

C ° water q.s. ad 1000g

The mixture is ground in a pearl mill until a fine suspension is formed. The thick, dark green suspension was diluted with 3 liters of water with stirring before use. The resulting seed dressing is used to seed different seeds on a Stabitox SN seeder using the following method:

The suction tube of the seed machine is placed in the seed box, the seed hopper is filled and the seed is continuously dispensed. The liquid metering rate is set to 0.7 liters / min using a rotameter and the device is switched from metering mode to dressing mode. Adjusting the self-dosing to 4 tons / hour, the machine shoots 4 q of seed at a rate of 1 liter / q of liquid for about 6 minutes. The packed seed is slightly wet when it enters the bag, but after about 5 to 10 minutes the coating is dry. The coating discontinuities are well observed under the microscope.

Example 2

The following Example 1 was prepared

composition of the composition: Rézoxikinolát 100 g Tiophanátmetil 300 g Mowilith DM 21 250g Tensiofix B 7425 150g Cellosize WP-09 hydroxyethyl cellulose (Unión Carbid Corp., USA) 20g water q.s. give 1000g

'177568

Example 3

A dressing composition having the following composition was prepared as described in Example 1:

Copper oxyquinolate 75g

Tiophanátmetil150g

Carboxin 75g

Mowilith DM 21 300g

Tensiofix B 7425 150g

Polyoxy WSR 35 polyethylene oxide (Unión Carbid Corp., USA) 30g

Water q.s. ad 1000g

Example 4

A dressing composition having the following composition was prepared as described in Example 1:

Captan 210g

Carboxin 100g

Ethylene glycol 120g

Mowilith DM 21 250g

Tensiofix B 7425 150g

Elvanol 70-30 20g

Water q.s. ad 1000g

Figures 2-4. For example, corn, wheat, and pea seeds are seeded with the compositions of Example 1, as described in Example 1. The results of biological experiments with seeded seeds are shown in Figures 1-3. are summarized in Table. The following known dressing agents were used in comparative experiments:

A) Preparations without polymeric binder: 5 Quinolite V4 X (Q-V-4-X) (manufactured by La Quinoléine,

France; containing 15% copper oxoquinolate and 50% Carboxin as active ingredient, Quinolite 15 (manufactured by La Quinoléine, France; containing 15% copper oxoquinolate as active ingredient),

Topsin M 70WP (manufactured by Nippon Soda Co., Japan, containing 70% thiophanate methyl as active ingredient),

TMTD 50 (manufactured by Budapest Chemical Works, Hungary; containing 50% tetramethylthiuram disulfide as active ingredient), Orthocid 50 WP (manufactured by Chevron Chem. Co., 15 USA; containing 50% Kaptan as active ingredient),

Merclorat (manufactured by Radonja, Yugoslavia; contains 2.5% of methoxyethylmercury mercury chloride as active ingredient).

B) Preparations containing a polymeric binder:

Quinolite V4 X F.I. (Q-V-4-X F.I.) (manufactured by La Quinoléine, France, containing 10% copper oxoquinolate and 34% carboxin as active ingredient),

Evershield CM (manufactured by Cargill. USA; containing 29.5% Kaptan and 0.34% Malathion as active ingredient and a water-insoluble and water-insoluble polymer blend of polymer binder 25; composition according to U.S. Patent No. 3,133,339).

Table 1

Biological test results for maize seeds of MVSC-80 varieties treated with different compositions

Dressing composition Dosage of dressing, g / 100 kg, respectively. ml / 100 kg The active ingredient dose is g / 100 kg hatching ** % % Infection rate (*) Fusarium spp- Aspergillus spp. Penicillium spp. Example 1 200 75 95.8 3 1 1 composition Example 1 100 32.5 90.5 3.5 4 5 composition Example 3 200 60 93.8 1 composition Q V — 4 —— X F, I. 350 130 90.3 3 1 1 q V-M — X 200 130 86.0 3 1 1 Evershield CM 100 30 85.4 4.5 6.5 12 TMTD 50 200 100 83.4 54 - 22

(*) Based on an examination of 200 seeds ** Hatched plants as% of seeds sown

Table 2

Examination of the effect on germicidal diseases of 50 varieties of wheat seed

Dressing composition

Dosage of dressing, g / 100 kg

Dosage of active substance, g / 100 kg

% '*> Fusarium spp.

^{Number of} plants' ** ¹ as% of treated control

Composition 200 of Example 2

Composition 200 of Example 3

L0

108.3

114.2 ⁽ *> based on examination of 200 seeds) F ' ¹ based on 20 x 1 fm row of plants

Table 2 (continued)

Dressing composition Dosage of dressing, g / 100 kg Dosage of active substance, g / 100 kg Infection% '*' Fusarium spp. Plant number '**' as% of treated control Quinolate 15 and 200 85 2.0 102.5 Topsin M 70 WP applied together in a 1: 1 ratio Merklorat '**' ' 90 3.4 2.5 100.0 untreated - - 9.5 85.0

'***> Extremely toxic to the biological environment and is banned

Table 3

Biological results of Amalia pea seeds treated with different compositions

Dressing composition

The composition of Example 4 is TMTD-50 Orthodd 50 WP Untreated

Dosage of dressing, g / 100 kg Dosage of active substance, g / 100 kg Emergency · *. ° / zo Infection% '*' Fusarium spp. Aspergillus spp. Penicillium · spp Altemaria spp. 200 62 97.4 0.5 - - 2.5 200 100 84.5 2.0 0.5 0.5 6.5 300 150 86.7 1.5 - - 5.5 .—. . - 78.6 3.5 2.5 2.5 11.0

<'> Based on examination of 200 seeds ♦ · Hatched plants as% of seeds sown.

1-3. The following conclusions can be drawn from the table below:

The compositions of the present invention, when applied at the same or even lower doses of the conventional known compositions, provide adequate biological protection to the seeds, even though the active ingredient does not cover the entire core surface. The treatment percentage of the seeds treated with the compositions of the invention is higher than that of the seeds treated with the known compositions, indicating that the compositions of the invention do not exert any adverse biological effects on the seeds.

In the following series of experiments, we investigated how the seed percentage and the degree of infection vary with the surface area of the seed. Experiments were performed with the composition of Example 1. In each experiment, 200 seeds were used. The experiments were repeated four times and the average of the values obtained was reported. The degree of infection was determined by measuring the proportion of plants infected with Fusarium spp .; this fungus is the most dangerous pathogen in seedlings. The observed results are reported in Table 4, where data from experiments with a known composition (Evershield CM) are also included for comparison purposes.

The data of Table 4 show that the compositions of the present invention achieve the best results with 30-90% seed coverage.

Table 4

Wheat ' ¹ ' Corn ' ² ' Pea ' ³ '

Core Coverage,% Treatment% % Infection Rising% % Infection Rising% % Infection 10 20 72.8 8.5 78.5 10.5 68.0 8.0 20-30 73.2 6.5 80.0 8.0 69.5 6.0 30-40 84.6 3.0 87.0 3.5 84.0 4.0 50-60 88.4 1.0 94.0 1.5 92.5 2.0 70-80 92.5 0.5 97.0 1.0 94.2 0.5 80-90 96.8 1.5 96.5 1.0 88.0 1.0 90-100 84.2 5.4 86.0 1.0 81.5. 0.5 Evershield CM 100 68.2 9.0 94.0 4.5 88.5 5.0 untreated 0 85.0 19.5 78.0 11.5 64.5 9.5

(1) Anniversary of 50; (2) MVSC 580; (3) Aura

Example 11

By the procedure of Example 1, the following is prepared

Example 5

By the method of Example 1, the following composition was prepared:

Benomil 30 weight /,

Vinyl acetate-vinyl laurate copolymer 30 weight, ',

Polyacrylamide 8% by weight

Ethoxylated nonylphenol 6 weight ⁰ /,

Water q.s. gives 100% by weight

Example 6

The composition of Example 1 was used to prepare a composition having the following composition:

Mancoseb 40 weight ⁰ /,

Vinyl acetate-vinylhexoate copolymer 20 weight ⁰ /,

Carboxymethylcellulose 5% by weight

The mixture of alkylaryl sulfonates is 10% by weight;

Water qs gives 100 weight ⁰ / composition:

Fluotrimazole 10 Weight ⁰ ,;

Vinyl acetate-dodecyl acrylate copolymer 10 wt.

Polyvinyl alcohol 1 weight ”,,

Sodium dodecylbenzene sulphonate 5% w / w

Viz q.s. ad KX) weight "/,

Example 12

By the method of Example I, the following composition is prepared:

Bupirimate 18% by weight

Vinyl acetate - 2-ethylbutyl acrylate copolymer 12% by weight

Polypropylene oxide 2 weight ⁰ /,

Mixture of sodium salts of lignin sulfonic acid 7 weight ⁰ /

Viz q.s. gives 100% by weight

Example 7

By the method of Example 1, the following composition was prepared:

Vinclozolin 20 Weight ”,,

Vinyl acetate-vinyl butyrate copolymer 15% by weight

Polyvinylpyrrolidone 2% by weight

Oktilkrezol weight ethoxylated 15 ⁰ ,,

Viz q.s. gives 100% weight

Example 13

By the method of Example 1, the following composition was prepared:

Fenfuram 22 weight ⁰ /,

Vinyl - 2-ethylhexyl acrylate 14 weight ⁰ /,

Polyethylene oxide 1 weight ' ¹ /

Oktilkrezol weight ethoxylated 10 ⁰ /,

Viz q.s. gives 100 weight ,,

Example 8

By the method of Example 1, the following composition was prepared:

Tridemorph 25% by weight

Vinyl acetate-vinyl propionate copolymer 40% by weight

Dextrin 1% by weight

Mixture of alkylaryl sulfonates 10% by weight

Water q.s. gives 100 weight ,,

Example 14

By the method of Example 1, the following composition was prepared:

Benodanil 34 weight //,

Vinyl acetate - heptyl acrylate copolymer 10% by weight

Ethylene glycol 3 weight ⁰ /,

Ethoxylated nonylphenol 20% by weight

Water q.s. gives 100 weight //,

Example 9

By the method of Example 1, the following composition was prepared:

Thiabendazole 45% by weight

Vinyl acetate-bulyl acrylate copolymer 15% by weight

Polyvinylmethyl ether) 4% by weight

Polyoxyethylene sorbitan monooleate 15% w / w

Water q.s. gives 100% by weight

Example 15

By the method of Example 1, the following composition was prepared:

Triforine 12% by weight

Vinyl acetate - propyl acrylate copolymer 18% by weight

Polyacrylamide 1% by weight

Polyoxyethylene sorbitan monooleate 1% by weight

Water q.s. gives 100% by weight

Example 10

By the method of Example 1, the following composition was prepared:

Pyracarbolid 12% by weight

Vinyl acetate-butyl-acrylate copolymer 15% by weight

Ethyl hydroxyethyl cellulose 1% by weight

Polyoxyethylene sorbitan monolaurate 8 wt%

Water q.s. gives 100% by weight

Example 16

By the method of Example 1, the following composition was prepared: 4-Chloro-3,5-dinitrobenzoic acid methyl ester 46% by weight

12% by weight of a vinyl acetate / vinyl acetate copolymer

Dextrin 2% by weight

Polyoxyethylene sorbitan monolaurate 20 wt.

Water q.s. gives 100% by weight

Example 17

By the method of Example 1, the following composition was prepared:

TMTD 20% by weight 5 Vinyl acetate-vinylhexoate copolymer 15% by weight Poly (vinyl methyl ether) 1% by weight Sodium dodecylbenzenesulfonate 3% by weight Water q.s. give 100% by weight 10 Example 18

1. The following composition is prepared according to the procedure of Example 1: Ridomil Vinyl acetate-vinyl-vatate copolymer Carboxymethylcellulose Sodium dodecylbenzenesulfonate Water q.s. give

Claims (3)

Patent claims 1. A composition for seed dressing for application in discrete spots, known in the range of 10 to 50% by weight 32% by weight 15 20% by weight 8% by weight 10% by weight 100% by weight of dressing agent. Insoluble film-forming polymer, 2-30 weight ⁰ / ;, additive (water-soluble polymeric protective colloid, anionic or nonionic surfactants, and defoamers are optionally and / or dye), and the amount of water needed to reach 100% by weight of 10-40 weight / water characterized in that the water-insoluble film-forming polymer comprises a copolymer of vinyl acetate and a vinyl ester or acrylate monomer having a glass transition temperature of less than 10 ° C, having a tensile elongation of at least 200%, preferably at least 400% and a glass transition temperature of less than 30 ° C. . An embodiment of the composition of claim 1, wherein the water-insoluble film-forming polymer comprises a vinyl acetate-vinyl versus copolymer. 3. A method for seed dressing, wherein, after dilution, the seed is preferably applied by spraying a composition according to claim 1 or 2, and 30 to 90% of the total surface area of the composition, optionally after dilution. preferably discrete film patches covering 30-70% of the surface of the seeds.