CN111685113A - Solid penetrant, water dispersible granule prepared from solid penetrant and preparation method of water dispersible granule - Google Patents
Solid penetrant, water dispersible granule prepared from solid penetrant and preparation method of water dispersible granule Download PDFInfo
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- CN111685113A CN111685113A CN202010429672.XA CN202010429672A CN111685113A CN 111685113 A CN111685113 A CN 111685113A CN 202010429672 A CN202010429672 A CN 202010429672A CN 111685113 A CN111685113 A CN 111685113A
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- water dispersible
- dispersible granule
- polyoxyethylene ether
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- ethylhexylamine
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/707—1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/337—Polymers modified by chemical after-treatment with organic compounds containing other elements
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a solid penetrant, which comprises the following raw materials: the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride and the naphthalene sulfonate condensate concentrated aqueous solution are added according to the mass ratio of 3: 7. The invention also discloses a water dispersible granule containing the solid penetrant, which comprises the following raw materials: the pymetrozine compound comprises pymetrozine active compound, a solid penetrating agent, a dispersing agent, a wetting agent, a disintegrating agent, an adhesive and sodium tripolyphosphate, wherein the raw materials are added according to the mass ratio of 50:2:7:2:10:5: 24. After the penetrant is added to the water dispersible granule, the water dispersible granule can be endowed with better permeability, and the penetration and absorption of pesticide on the surface of a target can be promoted in the using process, so that the pesticide effect is improved.
Description
Technical Field
The invention relates to the technical field of pesticide preparations, and particularly relates to a solid penetrant, water dispersible granules prepared from the solid penetrant and a preparation method of the water dispersible granules.
Background
The water dispersible granule is a novel pesticide preparation developed in the early stage of the 80 th 20 th century, and can be quickly disintegrated and dispersed when being put into water to form a granular preparation of a highly suspended solid-liquid dispersion system. From the 80 s, scientists have been working on developing efficient herbicides and achieving fruitful results. The water dispersible granule is widely popularized and used in Europe and America, fully shows the unique charm of the water dispersible granule, and is well received by users.
Currently, most commercially available water dispersible granules have difficulty in having permeability of conventional aqueous suspensions because conventional aqueous suspensions contain a large amount of surfactant, and water dispersible granules have difficulty in being compounded with conventional wetting surfactants. Therefore, an osmotic agent that can be used in water dispersible granules is desired, and the above problems can be solved well.
Disclosure of Invention
The invention mainly aims to overcome the defect of poor permeability of the existing water dispersible granule and provide a solid penetrant and a water dispersible granule prepared from the solid penetrant. The solid penetrant can endow the water dispersible granules with better permeability when being used in the water dispersible granules, and can promote the penetration and absorption of pesticides on the surface of a target in the using process, so that the pesticide effect is improved.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme.
The invention provides a solid penetrant, which comprises the following raw materials: the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride and the naphthalene sulfonate condensate concentrated aqueous solution are added according to the mass ratio of 3: 7.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
The invention also provides a water dispersible granule containing the solid penetrant, which comprises the following raw materials: pymetrozine technical, solid penetrant, dispersant, wetting agent, disintegrant, adhesive and sodium tripolyphosphate.
The pymetrozine active compound, the solid penetrant, the dispersant, the wetting agent, the disintegrant, the binder and the sodium tripolyphosphate are added according to the mass ratio of 50:2:7:2:10:5: 24.
The water dispersible granule is prepared from the water dispersible granule, wherein the type of the dispersing agent is WS-D450; the model of the wetting agent is WS-EFW; the disintegrant is selected from ammonium sulfate; the binder is selected from starch.
The object of the present invention and the technical problem to be solved are also achieved by the following technical means.
The invention further provides a method for preparing water dispersible granules, which comprises the following steps:
(1) preparing 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride;
(2) preparing a solid penetrant: adding the prepared 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride into a naphthalene sulfonate condensate concentrated aqueous solution according to a ratio, uniformly stirring, adding into a circulating spray tower, and performing circulating spray drying at 230 ℃ to prepare a solid penetrant;
(3) preparing water dispersible granules: mixing the pymetrozine technical, the solid penetrant, the dispersant, the wetting agent, the disintegrant, the adhesive and the sodium tripolyphosphate according to a proportion, uniformly stirring, and then extruding and granulating to obtain the pymetrozine water dispersible granule.
In the preparation method, the 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride in the step (1) is prepared by the following steps:
a. adding 2-ethylhexylamine into a polymerization reaction kettle, and introducing ethylene oxide for reaction to obtain 2-ethylhexylamine polyoxyethylene ether;
b. adding 2-ethylhexyl amine polyoxyethylene ether into a reaction kettle, adding isopropanol (accounting for 60 percent of the mass of the reaction mass) serving as a solvent, and introducing methyl chloride for reaction to obtain the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride.
In the preparation method, the 2-ethylhexylamine and the ethylene oxide in the step a are mixed according to the mass ratio of 129 (220-440).
In the preparation method, the reaction conditions in the step a are as follows: the temperature is 130 ℃ and the time is 2 h.
In the preparation method, the chloromethane is introduced in an equimolar amount to the 2-ethylhexylamine polyoxyethylene ether in the step b.
In the preparation method, the reaction conditions in step b are as follows: the temperature is 50 ℃ and the time is 6 h.
In conclusion, the invention has the following beneficial effects: the invention discloses a penetrant used in water dispersible granules based on the fact that the traditional water suspending agent contains a large amount of surfactant, and the water dispersible granules are difficult to be compounded with the traditional wetting surfactant, so that the penetrant can better solve the problems. The penetrant can endow the water dispersible granules with better permeability, and can promote the penetration and absorption of pesticides on the surface of a target in the using process, so that the pesticide effect is improved.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a detailed description of the preferred embodiments of the present invention.
The specific methods and efficacy of the present invention are detailed in the following examples.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The solid penetrant comprises the following raw materials: the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride and the naphthalene sulfonate condensate concentrated aqueous solution are added and mixed according to the mass ratio of 3: 7. The 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride is prepared by taking 2-ethylhexylamine as a raw material, and the specific reaction process comprises the following steps: adding 2-ethylhexylamine into a polymerization reaction kettle, introducing ethylene oxide, and reacting at 130 ℃ for 2h to obtain 2-ethylhexylamine polyoxyethylene ether; adding 2-ethylhexyl amine polyoxyethylene ether into a reaction kettle, adding isopropanol (accounting for 60% of the mass of the reaction mass) serving as a solvent, introducing monochloromethane with the same molar weight as the 2-ethylhexyl amine polyoxyethylene ether, and reacting at 50 ℃ for 6 hours to obtain the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride. The above reaction equation is as follows:
wherein x + y = 5-10.
The water dispersible granule provided by the invention comprises the following raw materials: the pymetrozine pesticide comprises pymetrozine raw pesticide, a solid penetrant, a dispersing agent WS-D450, a wetting agent WS-EFW, a disintegrating agent ammonium sulfate, adhesive starch and sodium tripolyphosphate, and the raw materials are added and mixed according to the mass ratio of 50:2:7:2:10:5: 24. The water dispersible granule is prepared by the following steps: (1) preparing 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride; (2) preparing a solid penetrant: adding the prepared 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride into a naphthalene sulfonate condensate concentrated aqueous solution according to a ratio, uniformly stirring, adding into a circulating spray tower, and performing circulating spray drying at 230 ℃ to prepare a solid penetrant; (3) preparing water dispersible granules: mixing the pymetrozine technical, the solid penetrant, the dispersant, the wetting agent, the disintegrant, the adhesive and the sodium tripolyphosphate according to a proportion, uniformly stirring, and then extruding and granulating to obtain the pymetrozine water dispersible granule.
Example 1
Preparing 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride: adding 129 parts of 2-ethylhexylamine into a polymerization reaction kettle, introducing 220 parts of ethylene oxide, and reacting at 130 ℃ for 2 hours to obtain 2-ethylhexylamine polyoxyethylene ether (5 EO). Adding 2-ethylhexyl amine polyoxyethylene ether into a reaction kettle, adding isopropanol (accounting for 60% of the mass of the reaction mass) serving as a solvent, introducing monochloromethane with the same molar weight as the 2-ethylhexyl amine polyoxyethylene ether, and reacting at 50 ℃ for 6 hours to obtain the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride.
Preparing a solid penetrant: adding 30 parts of 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride into 70 parts of naphthalene sulfonate condensate concentrated aqueous solution (40% content), uniformly stirring, adding into a circulating spray tower, and circularly spraying and drying at 230 ℃ to prepare the solid penetrant.
Preparing 50% pymetrozine water dispersible granules: 50 parts of pymetrozine technical, 2 parts of solid penetrant, 7 parts of dispersant WS-D450, 2 parts of wetting agent WS-EFW, 10 parts of ammonium sulfate, 5 parts of starch and 24 parts of sodium tripolyphosphate are mixed and stirred, and then extruded and granulated to obtain the 50% pymetrozine water dispersible granule.
Example 2
Preparing 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride: adding 129 parts of 2-ethylhexylamine into a polymerization reaction kettle, introducing 440 parts of ethylene oxide, and reacting at 130 ℃ for 2 hours to obtain 2-ethylhexylamine polyoxyethylene ether (10 EO). Adding 2-ethylhexyl amine polyoxyethylene ether into a reaction kettle, adding isopropanol (accounting for 60% of the mass of the reaction mass) serving as a solvent, introducing monochloromethane with the same molar weight as the 2-ethylhexyl amine polyoxyethylene ether, and reacting at 50 ℃ for 6 hours to obtain the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride.
Preparing a solid penetrant: adding 30 parts of 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride into 70 parts of naphthalene sulfonate condensate concentrated aqueous solution (40% content), uniformly stirring, adding into a circulating spray tower, and circularly spraying and drying at 230 ℃ to prepare the solid penetrant.
Preparing 50% pymetrozine water dispersible granules: 50 parts of pymetrozine technical material, 2 parts of solid penetrant, 7 parts of dispersant WS-D450, 2 parts of wetting agent WS-EFW, 10 parts of ammonium sulfate, 5 parts of starch and 24 parts of sodium tripolyphosphate are mixed and stirred, and then extruded and granulated to obtain the 50% pymetrozine water dispersible granule.
Example 3
Preparing 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride: adding 129 parts of 2-ethylhexylamine into a polymerization reaction kettle, introducing 352 parts of ethylene oxide, and reacting at 130 ℃ for 2 hours to obtain 2-ethylhexylamine polyoxyethylene ether (8 EO). Adding 2-ethylhexyl amine polyoxyethylene ether into a reaction kettle, adding isopropanol (accounting for 60% of the mass of the reaction mass) serving as a solvent, introducing monochloromethane with the same molar weight as the 2-ethylhexyl amine polyoxyethylene ether, and reacting at 50 ℃ for 6 hours to obtain the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride.
Preparing a solid penetrant: adding 30 parts of 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride into 70 parts of naphthalene sulfonate condensate concentrated aqueous solution (40% content), uniformly stirring, adding into a circulating spray tower, and circularly spraying and drying at 230 ℃ to prepare the solid penetrant.
Preparing 50% pymetrozine water dispersible granules: 50 parts of pymetrozine technical, 2 parts of solid penetrant, 7 parts of dispersant WS-D450, 2 parts of wetting agent WS-EFW, 10 parts of ammonium sulfate disintegrant, 5 parts of adhesive starch and 24 parts of sodium tripolyphosphate are mixed and stirred, and then extruded and granulated to obtain the 50% pymetrozine water dispersible granule.
Comparative example 1
Preparing 50% pymetrozine water dispersible granules: 50 parts of pymetrozine technical material, 7 parts of dispersing agent WS-D450, 2 parts of wetting agent WS-EFW, 10 parts of ammonium sulfate, 5 parts of starch and 26 parts of sodium tripolyphosphate are mixed and stirred, and then extruded and granulated to obtain the 50% pymetrozine water dispersible granule 4.
Test example 1 penetration test of Water dispersible granule
Test formulations: the water dispersible granules of examples 1-3 and the water dispersible granules of comparative example 1.
The test method comprises the following steps: the permeability assay was performed with reference to GBT 11983-.
TABLE 1 penetration time of Water dispersible granules
| Test formulations | Penetration time(s) |
| Example 1 | 10 |
| Example 2 | 11 |
| Example 3 | 11 |
| Comparative example 1 | ＞50 |
As can be seen from the results in Table 1, the 50% pymetrozine water dispersible granules (examples 1 to 3) added with the solid penetrant of the present invention have superior permeability as compared to comparative example 1.
Test example 2 measurement of drug efficacy of Water dispersible granule
Test drugs: water dispersible granules prepared in examples 1-3 and comparative example 1.
Test subjects: diamondback moth, flea beetle and aphid in vegetable field.
Blank control is a test with an equal amount of clear water added.
The application method comprises the following steps: and (3) carrying out pesticide effect tests on diamond back moths, flea beetles and aphids in vegetable fields by using the water dispersible granules prepared in the embodiments. Referring to the agricultural department 'test criteria for pesticide field efficacy', the number of insects in one time is investigated 7 days, 14 days and 21 days after pesticide application, and the control effect results are counted and calculated and shown in table 2.
TABLE 2 summary of the control effect of the Water dispersible granules on various insects in vegetable field
| Drug application sample | The dosage of effective component (g/mu) | Control effect on diamondback moth (%) | Control effect on flea beetle (%) | Control effect on aphids (%) |
| Example 1 | 40 | 96.2 | 97.3 | 94.2 |
| Example 2 | 40 | 95.1 | 97.1 | 93.1 |
| Example 3 | 40 | 94.4 | 96.8 | 93.4 |
| Comparative example 1 | 40 | 84.3 | 86.6 | 87.1 |
| Blank control | 0 | -- | -- | -- |
From the results in table 2, it can be seen that the control effect of the water dispersible granule containing the solid penetrant (examples 1 to 3) is higher than that of the water dispersible granule without the solid penetrant (comparative example 1) on the premise that the effective ingredients of the water dispersible granule are all 40 g/mu.
In conclusion, the water dispersible granule containing the solid penetrant is superior to a water dispersible granule without the solid penetrant in both permeability and efficacy. After the penetrant is added into the water dispersible granule, the water dispersible granule has good permeability and the drug effect of the water dispersible granule can be increased.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A solid penetrant is prepared from the following raw materials: the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride and the naphthalene sulfonate condensate concentrated aqueous solution are added according to the mass ratio of 3: 7.
2. A water dispersible granule comprising the solid penetrant of claim 1, the water dispersible granule having the following composition: pymetrozine technical, solid penetrant, dispersant, wetting agent, disintegrant, adhesive and sodium tripolyphosphate.
3. The water dispersible granule according to claim 2, wherein the pymetrozine technical, the solid penetrant, the dispersant, the wetting agent, the disintegrant, the binder and the sodium tripolyphosphate are added in a mass ratio of 50:2:7:2:10:5: 24.
4. The water dispersible granule according to claim 3, wherein the dispersant is WS-D450; the model of the wetting agent is WS-EFW; the disintegrant is selected from ammonium sulfate; the binder is selected from starch.
5. A method of preparing the water dispersible granule of any one of claims 2 to 4, comprising the steps of:
(1) preparing 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride;
(2) preparing a solid penetrant: adding the prepared 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride into a naphthalene sulfonate condensate concentrated aqueous solution according to a ratio, uniformly stirring, adding into a circulating spray tower, and performing circulating spray drying at 230 ℃ to prepare a solid penetrant;
(3) preparing water dispersible granules: mixing the pymetrozine technical, the solid penetrant, the dispersant, the wetting agent, the disintegrant, the adhesive and the sodium tripolyphosphate according to a proportion, uniformly stirring, and then extruding and granulating to obtain the pymetrozine water dispersible granule.
6. The preparation method according to claim 5, wherein the 2-ethylhexylamine polyoxyethylene ether methyl ammonium chloride in the step (1) is prepared according to the following steps:
a. adding 2-ethylhexylamine into a polymerization reaction kettle, and introducing ethylene oxide for reaction to obtain 2-ethylhexylamine polyoxyethylene ether;
b. adding 2-ethylhexyl amine polyoxyethylene ether into a reaction kettle, adding isopropanol (accounting for 60 percent of the mass of the reaction mass) serving as a solvent, and introducing methyl chloride for reaction to obtain the 2-ethylhexyl amine polyoxyethylene ether methyl ammonium chloride.
7. The preparation method of claim 6, wherein the 2-ethylhexylamine and the ethylene oxide are mixed in the step a in an amount of 129 (220-440) by mass ratio.
8. The preparation method according to claim 6, wherein the reaction conditions in the step a are as follows: the temperature is 130 ℃ and the time is 2 h.
9. The method according to claim 6, wherein the methyl chloride is introduced in an equimolar amount to the 2-ethylhexylamine polyoxyethylene ether in the step b.
10. The preparation method according to claim 6, wherein the reaction conditions in the step b are as follows: the temperature is 50 ℃ and the time is 6 h.
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| CN202010429672.XA CN111685113A (en) | 2020-05-20 | 2020-05-20 | Solid penetrant, water dispersible granule prepared from solid penetrant and preparation method of water dispersible granule |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696629A (en) * | 2012-05-14 | 2012-10-03 | 安徽省化工研究院 | Functional pymetrozine insecticide and preparation method thereof |
| CN105521743A (en) * | 2015-12-10 | 2016-04-27 | 浙江皇马科技股份有限公司 | Cationic surfactant and synthetic method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696629A (en) * | 2012-05-14 | 2012-10-03 | 安徽省化工研究院 | Functional pymetrozine insecticide and preparation method thereof |
| CN105521743A (en) * | 2015-12-10 | 2016-04-27 | 浙江皇马科技股份有限公司 | Cationic surfactant and synthetic method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李新忠 等: "60%吡蚜酮水分散粒剂的研制", 《世界农药》 * |
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Application publication date: 20200922 |
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