Adjuvant for Agrochemicals

Abstract

This invention relates to an adjuvant for agrochemicals, i.e. for plant protection products, biostimulators, fertilisers, etc., for soil or foliar applied agrochemicals, characterised in that it contains a mixture of paraffin oil with plant oil and/or alkyl ester of fatty acids of plant origin and an emulsifying-wetting component which is a multicomponent mixture of surfactants which contains ethoxylated coconut alkyldimethylamine, ethoxylated castor oil, C16-18 ethoxylated alkyl amines and surfactants of polymer nature, such as phosphate diethanolamine salts of C12-4 polyethoxylated alcohol, C9-11 linear and branched ethoxylated alcohols and sodium salt of succinic acid monoester of oxethylated nonylphenol.

Claims

1. An adjuvant for agrochemicals, comprising: a mixture of paraffin oil, an alkyl ester of fatty acids of plant origin, and an emulsifying-wetting component, wherein the emulsifying-wetting component is a multicomponent mixture of surfactants having emulsifying and wetting properties comprising: ethoxylated coconut alkyldimethylamine, ethoxylated castor oil, C16-18 ethoxylated alkyl amines, and polymeric surfactants.

2. The adjuvant of claim 1, wherein the polymeric surfactants of the emulsifying-wetting component comprise one or more surfactants selected from the group consisting of: ethoxylated nonylphenols; ethoxylated linear and branched alcohols of a carbon chain length of C8-C16; ethoxylated fatty acids; ethoxylated fatty amines; ethoxylated fatty amides; ethoxylated block copolymers, propoxylated block copolymers, and mixtures of ethoxylated and propoxylated block copolymers.

3. The adjuvant according to claim 1, wherein the polymeric surfactants of the emulsifying-wetting component compromise phosphoric acid esters.

4. The adjuvant as in one of claims 1-3, wherein the adjuvant comprises 20-90% by weight of a mixture of paraffin oil and an alkyl ester of fatty acids of plant origin and 10-80% by weight of said emulsifying-wetting component.

5. The adjuvant of claim 4, wherein the adjuvant comprises 80% by weight of a mixture of paraffin oil and an alkyl ester of fatty acids of plant origin and 20% by weight of said emulsifying-wetting component.

6. The adjuvant of claim 1, wherein the viscosity of said paraffin oil is within the range of 20-35 mm.sup.2/s at a temperature of 40? C. and its density is within the range of 0.75-0.95 g/cm.sup.3 at a temperature of 15? C.

7. The adjuvant of claim 1, wherein the viscosity of said alkyl ester of fatty acids of plant origin is within the range of 2-6 mm.sup.2/s at a temperature of 20? C. and its density is within the range of 0.75-0.95 g/cm.sup.3.

8. (canceled)

9. An adjuvant for agrochemicals, comprising: a 50-50 mixture by weight of paraffin oil and an alkyl ester of fatty acids of plant origin, and an emulsifying-wetting component, wherein the emulsifying-wetting component is a multicomponent mixture of surfactants having emulsifying and wetting properties comprising: ethoxylated coconut alkyldimethylamine, ethoxylated castor oil, C16-18 ethoxylated alkyl amines and polymeric surfactants.

10. The adjuvant of claim 9, wherein the polymeric surfactants of the emulsifying-wetting component comprise one or more surfactants selected from the group consisting of: ethoxylated nonylphenols; ethoxylated linear and branched alcohols of a carbon chain length of C8-C16; ethoxylated fatty acids; ethoxylated fatty amines; ethoxylated fatty amides; ethoxylated block copolymers, propoxylated block copolymers, and mixtures of ethoxylated and propoxylated block copolymers.

11. The adjuvant according to claim 9, wherein the polymeric surfactants of the emulsifying-wetting component comprise phosphoric acid esters.

12. The adjuvant as in one of claims 9-11, wherein said mixture of paraffin oil and an alkyl ester of fatty acids of plant origin comprises 80-90% by weight of the adjuvant.

13. The adjuvant of claim 12, wherein the viscosity of said paraffin oil is within the range of 20-35 mm.sup.2/s at a temperature of 40? C. and its density is within the range of 0.75-0.95 g/cm.sup.3 at a temperature of 15? C. and wherein the viscosity of said alkyl ester of fatty acids of plant origin is within the range of 2-6 mm.sup.2/s at a temperature of 20? C. and its density is within the range of 0.75-0.95 g/cm.sup.3

Description

[0021] The adjuvant composition according to the invention is shown in embodiments and behaviour examples under practical conditions:

EXAMPLE I

[0022] In a container equipped with a mechanical stirrer, the following was placed: [0023] 1) 400 g of N-150 base paraffin oil having a viscosity of 27 mm.sup.2/s at 40? C. and a density of 0.85 g/cm.sup.3 at 15? C., [0024] 2) 400 g of methyl ester of fatty acids of rapeseed oil having a viscosity of 4 mm.sup.2/s at 20? C. and a density of 0.85 g/cm.sup.3, [0025] 3) 50 g of ethoxylated coconut alkyldimethylamine, [0026] 4) 50 g of ethoxylated castor oil, [0027] 5) 40 g of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, [0028] 6) 20 g of C16-18 ethoxylated alkyl amine, [0029] 7) 20 g of C9-11 linear ethoxylated alcohol, [0030] 8) 20 g of sodium salt of succinic acid monoester of oxethylated nonylphenol.

[0031] The whole was mixed at a temperature of 20? C. for a period of about 10 min. to a complete homogenisation of the mixture. A clear, homogeneous composition of a light brown colour was obtained, having a density of 0.88 g/cm.sup.3 and a viscosity of 12 mm.sup.2/s at 20? C., containing 40% by weight of paraffin oil, 40% by weight of methyl ester of fatty acids of rapeseed oil, 5% by weight of ethoxylated coconut alkyldimethylamine, 5% by weight of ethoxylated castor oil, 4% by weight of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, 2% by weight of C16-18 ethoxylated alkyl amine, 2% by weight of C9-11 linear ethoxylated alcohol and 2% by weight of sodium salt of succinic acid monoester of oxethylated nonylphenol.

EXAMPLE II

[0032] In a container equipped with a mechanical stirrer, the following was placed: [0033] 1) 100 g of N-150 base paraffin oil having a viscosity of 27 mm.sup.2/s at 40? C. and a density of 0.85 g/cm.sup.3 at 15? C., [0034] 2) 100 g of methyl ester of fatty acids of rapeseed oil having a viscosity of 4 mm.sup.2/s at 20? C. and a density of 0.85 g/cm.sup.3, [0035] 3) 200 g of ethoxylated coconut alkyldimethylamine, [0036] 4) 200 g of ethoxylated castor oil, [0037] 5) 160 g of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, [0038] 6) 80 g of C16-18 ethoxylated alkyl amine, [0039] 7) 80 g of C9-11 linear ethoxylated alcohol, [0040] 8) 80 g of sodium salt of succinic acid monoester of oxethylated nonylphenol.

[0041] The whole was mixed at a temperature of 20? C. for a period of about 10 min. to a complete homogenisation of the mixture. A clear, homogeneous composition of a light brown colour was obtained, having a density of 0.95 g/cm.sup.3 and a viscosity of 10 mm.sup.2/s at 20? C., containing 10% by weight of paraffin oil, 10% by weight of methyl ester of fatty acids of rapeseed oil, 20% by weight of ethoxylated coconut alkyldimethylamine, 20% by weight of ethoxylated castor oil, 16% by weight of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, 8% by weight of C16-18 ethoxylated alkyl amine, 8% by weight of C9-11 linear ethoxylated alcohol and 8% by weight of sodium salt of succinic acid monoester of oxethylated nonylphenol.

EXAMPLE III

[0042] In a container equipped with a mechanical stirrer, the following was placed: [0043] 1) 450 g of N-150 base paraffin oil having a viscosity of 27 mm.sup.2/s at 40? C. and a density of 0.85 g/cm.sup.3 at 15? C., [0044] 2) 450 g of methyl ester of fatty acids of rapeseed oil having a viscosity of 4 mm.sup.2/s at 20? C. and a density of 0.85 g/cm.sup.3, [0045] 3) 25 g of ethoxylated coconut alkyldimethylamine, [0046] 4) 25 g of ethoxylated castor oil, [0047] 5) 20 g of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, [0048] 6) 10 g of C16-18 ethoxylated alkyl amine, [0049] 7) 10 g of C9-11 linear ethoxylated alcohol, [0050] 8) 10 g of sodium salt of succinic acid monoester of oxethylated nonylphenol.

[0051] The whole was mixed at a temperature of 20? C. for a period of about 10 min. to a complete homogenisation of the mixture. A clear, homogeneous composition of a light brown colour was obtained, having a density of 0.89 g/cm.sup.3 and a viscosity of 14 mm.sup.2/s at 20? C., containing 45% by weight of paraffin oil, 45% by weight of methyl ester of fatty acids of rapeseed oil, 2.5% by weight of ethoxylated coconut alkyldimethylamine, 2.5% by weight of ethoxylated castor oil, 1% by weight of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, 1% by weight of C16-18 ethoxylated alkyl amine, 2% by weight of C9-11 linear ethoxylated alcohol and 1% by weight of sodium salt of succinic acid monoester of oxethylated nonylphenol.

EXAMPLE IV

[0052] In a container equipped with a mechanical stirrer, the following was placed: [0053] 1) 350 g of N-150 base paraffin oil having a viscosity of 27 mm.sup.2/s at 40? C. and a density of 0.85 g/cm.sup.3 at 15? C., [0054] 2) 350 g of methyl ester of fatty acids of rapeseed oil having a viscosity of 4 mm.sup.2/s at 20? C. and a density of 0.85 g/cm.sup.3, [0055] 3) 150 g of phosphoric acid ester, [0056] 4) 50 g of ethoxylated castor oil, [0057] 5) 40 g of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, [0058] 6) 20 g of C16-18 ethoxylated alkyl amine, [0059] 7) 20 g of C9-11 linear ethoxylated alcohol, [0060] 8) 20 g of sodium salt of succinic acid monoester of oxethylated nonylphenol.

[0061] The whole was mixed at a temperature of 20? C. for a period of about 10 min. to a complete homogenisation of the mixture. A clear, homogeneous composition of a light brown colour was obtained, having a density of 0.87 g/cm.sup.3 and a viscosity of 15 mm.sup.2/s at 20? C., containing 35% by weight of paraffin oil, 35% by weight of methyl ester of fatty acids of rapeseed oil, 15% by weight of phosphoric acid ester, 5% by weight of ethoxylated castor oil, 4% by weight of phosphate diethanolamine salt of C12-14 polyethoxylated alcohol, 2% by weight of C16-18 ethoxylated alkyl amine, 2% by weight of C9-11 linear ethoxylated alcohol and 2% by weight of sodium salt of succinic acid monoester of oxethylated nonylphenol.

EXAMPLE V

[0062] The effect of the adjuvant composition prepared according to Example I on herbicidal effectiveness of herbicide mixture Butisan 400 SC (a.i. metazachlor)+Command 480 EC (a.i. clomazone) used in full doses and reduced doses in winter rape (8 weeks after treatment, field test in 2014Experimental Station in LaskowiceIUNG-PIB in Pulawy, Wroclaw Branch).

TABLE-US-00001 Dose Weed species** (l/ha) TRZAX VIOAR GERPU CAPBP MATIN CHEAL Control 4 pc./m.sup.2 4 pc./m.sup.2 47 pc./m.sup.2 19 pc./m.sup.2 26 pc./m.sup.2 4 pc./m.sup.2 Object weed control (%) Butisan 400 S.C. + 2 + 19 68 71 72 88 44 Command 480 EC 0.15 Butisan 400 SC + 2 + 25 64 70 72 82 40 Command 480 EC + 0.15 + Grounded* 0.5 Butisan 400 SC + 2 + 28 76 76 86 94 70 Command 480 EC + 0.15+ Composition according 0.5 to Example I Butisan 400 SC + 1.5 + 15 61 66 68 81 35 Command 480 EC 0.1 Butisan 400 SC + 2 + 14 61 62 71 84 35 Command 480 EC + 0.1 + Grounded 0.5 Butisan 400 S.C. + 1.5 + 24 70 74 83 93 62 Command 480 EC + 0.1 + Composition according 0.5 to Example I *comparative adjuvant supplied by F&N Agro Polska Sp. z o.o. **TRZAS = common wheat (Triticum aestivum); VIOAR = field pansy (Viola arvensis); GERPU = small-flowered crane's-bill (Geranium pusillum); CAPBP = shepherd's-purse (Capsella bursa-pastoris); MATIN = scentless false mayweed (Matricaria maritima ssp. inodora); CHEAL = lamb's quarters (Chenopodium album)

[0063] Conclusion: the adjuvant composition prepared according to Example I of the invention at a dose of 0.5 l/ha significantly contributed to an increase in the herbicidal effectiveness of herbicide mixture Butisan 400 SC+Command 480 EC applied to the soil after sowing the rape, which, with the use of reduced doses of these herbicides, resulted in an a similar or higher herbicidal effectiveness in relation to the full dose, without the adjuvant.

EXAMPLE VI

[0064] Effect of the adjuvant composition prepared according to Example I on movement of herbicide Butisan 400 SC (a.i. metazachlor) under the influence of simulated rainfall (15 l/m.sup.2) used 2 and 20 hours after treatment (IUNG-PIB tests in Pulawy, Wroclaw Branch in 2014).

TABLE-US-00002 Butisan Butisan 400 SC + 400 SC 2 composition Time of the Butisan l/ha + according to Soil fall after 400 SC 2 Grounded* Example I layer treatment l/ha 0.5 l/ha 0.5 l/ha (cm) (h) herbicide residues in the soil (% of the dose applied) 0-5 2 66 77 82 20 73 86 90 5-10 2 26 21 18 20 22 13 10 10-20 2 8 2 0 20 5 1 0 *comparative adjuvant supplied by F&N Agro Polska Sp. z o.o.

[0065] Conclusion: the adjuvant composition prepared according to Example I of the invention at a dose of 0.5 l/ha significantly contributed to the inhibition of washout and displacement of herbicide Butisan 400 SC down the soil by simulated rainfall in an amount of 15 l/m.sup.2.

EXAMPLE VI

[0066] Effect of the adjuvant composition prepared according to Example I on the increase in root mass and plant mass in the cultivation of winter rape, when it is used in foliar application, in the presence of various biostimulators. Tests in the embodiment were carried out with the use of winter rape, using the soil of Laskowice type (pH=4.6, Corg=0.78). Each experimental system was repeated three times.

[0067] In a first test group, a microelement zinc fertiliser in the chelated form was used (product name: Patron, manufacturer: AGROMIX Manufacturing and Trading Company). Patron fertiliser improves root development of plants by an increases in root mass and thus preferably influences the growth and yield of rape, cereals, corn and leguminous plants. This fertiliser contains: 7.5% wt/wt of nitrogen (N) in the ammonium form (i.e. 90 g of NNH2/l); 8.0% wt/wt of zinc (Zn) dissolvable in water (i.e. 96 g of Zn/l), its density is 1.19-1.21 kg/l and pH is within the range of 6-7.

[0068] The table below shows the effect of using the adjuvant prepared according to Example I on increasing the root mass and the mass of winter rape with the use of a lower dose of Patron biostimulator than the recommended dose.

TABLE-US-00003 Term of Total mass Dose appli- Root mass of plants Object [l/ha] cation [% of control] [% of control] Control 2-4 leaves 100 100 (without biostimulator and adjuvant) Patron (at the 1.0 2-4 leaves 117.4 150.7 recommended dose) Patron (at the 0.75 2-4 leaves 107.6 123.3 lower dose) Patron (at the 0.75 + 0.5 2-4 leaves 114.0 144.9 lower dose) + composition of Example I

[0069] Conclusion: Patron biostimulator used at a dose lowered by 25% with the adjuvant composition prepared according to Example I of the invention used at a dose of 0.5 l/ha contributed to the increase in the root mass and the total mass of rape to the level obtained after the use of the recommended dose without the adjuvant.

[0070] Also, additional tests were carried out according to the above scheme for other biostimulators, including those containing algae extract (product name: Kelpak; manufacturer: OMEX) and those containing algae extract along with AOC (product name: Denamix Cresco, manufacturer: CHEMIROL). In the case of other biostimulators, the addition of the adjuvant prepared according to Example I at a dose of 0.5 l/ha significantly contributed to the increase in the root mass and plant mass with the lower dose of the aforementioned biostimulators.

EXAMPLE VII

[0071] Effect of the adjuvant composition prepared according to Example IV on pH of the water used for preparing the spray liquid of agrochemicals

TABLE-US-00004 Adjuvant dose pH Object (l/100 l of water) (20? C.) Tap water 7.4 Tap water + composition of Example IV 0.25 6.9 Tap water + composition of Example IV 0.5 6.7 Tap water + composition of Example IV 0.75 6.2 Tap water + composition of Example IV 1.0 5.8

[0072] Conclusion: the adjuvant composition prepared according to Example IV added to the spray water influences its gradual acidification and pH decrease as the adjuvant dose decreases from 0.25 to 1.0 litre per 100 l of water, which creates an environment preventing hydrolytic degradation of many pesticides, in particular from the group of fungicides and insecticides.