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Preparation method and application of micro-capsule suspension-suspending agent containing s-metolachlor and flumioxazin

A technology of metolachlor refined and profenachlor, applied in the field of preparation of microcapsule suspension-suspension agent, can solve the problems such as the reduction of the suspension rate of prochlorfenazone, and achieves excellent effect and long lasting effect , good safety effect

Pending Publication Date: 2022-07-22
PILAR SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present disclosure is to provide a preparation method and application of a microcapsule suspension-suspension agent containing refined metolachlor and propinyl fluoride, the preparation method obtained Amine microcapsule suspension-suspension agent with excellent performance, which solves the problem that the suspension rate of flumechlor propargyl is likely to decrease when the refined metolachlor microcapsule suspension concentrate is mixed with flumechlor propargyl suspension concentrate

Method used

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  • Preparation method and application of micro-capsule suspension-suspending agent containing s-metolachlor and flumioxazin
  • Preparation method and application of micro-capsule suspension-suspending agent containing s-metolachlor and flumioxazin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1 30% Metolachlor Sperm. 3% Profenachlor Microcapsule Suspension-Suspension Agent

[0050] (1) Diphenylmethane diisocyanate and polytetrahydrofuran diol are stirred at 70° C. for 2 hours according to the weight ratio of 1:2 to obtain a prepolymer;

[0051] (2) Get the first material by mixing 4g of the isocyanate prepolymer obtained in step 1 with 30.9g (97%) of the original metolachlor essence and 9.1g of solvent oil;

[0052] (3) Mix 5g of block polyether with 30g of water to obtain the second material;

[0053] (4) Pour the first material into the second material through high-speed shearing to form an O / W emulsion, that is, the third material;

[0054] (5) Dissolve 1 g of triethylenetetramine in 4 g of water to form an aqueous solution, and add dropwise to the third material being stirred to obtain the fourth material;

[0055] (6) Add 0.2g xanthan gum, 4g sodium lignosulfonate, 4g ethylene glycol, and 0.2g organosilicon antifoaming agent to the fourth mate...

Embodiment 2

[0058] Example 2 30% metolachlor sperm. 6% prochlorfenazone microcapsule suspension-suspension agent

[0059] (1) The diphenylmethane diisocyanate and the polyoxypropylene polyol are stirred at 80° C. for 3 hours according to the weight ratio of 1:3 to obtain a prepolymer;

[0060] (2) Mix 6g of the isocyanate prepolymer obtained in step 1 with 30.9g (97%) of the original drug of metolachlor sperm and 6g of xylene to obtain the first material;

[0061] (3) Mix 1 g of castor oil polyoxyethylene ether with 30 g of water to obtain the second material;

[0062] (4) Pour the first material into the second material through high-speed shearing to form an O / W emulsion, that is, the third material;

[0063] (5) Dissolve 0.6g of 1,4-butanediol in 5.4g of water to form an aqueous solution, add dropwise to the third material being stirred to obtain the fourth material;

[0064] (6) Add 0.5g of magnesium aluminum silicate, 1g of polycarboxylate, 4g of glycerol, and 0.2g of organic silico...

Embodiment 3

[0067] Example 3 30% metolachlor sperm. 1.2% prochlorfenazone microcapsule suspension-suspension agent

[0068] (1) According to the weight ratio of toluene diisocyanate and polyethylene oxide polyol of 1:0.5, stirring at 60 ° C for 1 hour to obtain a prepolymer;

[0069] (2) take 1g of the isocyanate prepolymer obtained in step 1 and mix it with 30.9g (97%) of the original drug of metolachlor pure and 10g of methyl oleate to obtain the first material;

[0070] (3) 8g castor oil polyoxyethylene ether, 7g calcium dodecylbenzenesulfonate and 15g water are mixed uniformly to obtain the second material;

[0071] (4) Pour the first material into the second material through high-speed shearing to form an O / W emulsion, that is, the third material;

[0072] (5) Dissolve 1g of hexanediamine in 1g of water to form an aqueous solution, and add dropwise to the third material being stirred to obtain the fourth material;

[0073] (6) Add 0.5g carboxymethyl cellulose, 7g sodium lignosulfon...

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Abstract

The invention discloses a preparation method and application of a micro-capsule suspension-suspending agent containing s-metolachlor and flumioxazin. The preparation method solves the problem that the suspension rate of flumioxazin is easily reduced when a s-metolachlor micro-capsule suspending agent and a flumioxazin suspending agent are mixed. The micro-capsule suspension-suspending agent containing s-metolachlor and flumioxazin can effectively prevent and control annual gramineous and broadleaf weeds on soybeans, peanuts, sunflowers, cotton and sugarcanes through soil sealing treatment after sowing and before seedling emergence, and the crop yield is increased.

Description

technical field [0001] The present disclosure relates to the technical field of pesticides, in particular, to a preparation method and application of a microcapsule suspension-suspension agent containing spermatochlor and prochlorfenazone. Background technique [0002] Farmland weeds are a major type of biological disaster that seriously threatens crop production. At present, the herbicide varieties used to control soybean, peanut, sunflower, cotton and sugarcane field weeds have shortcomings such as large dosage, single variety and formulation, and poor safety; and the long-term single use of herbicides leads to the increase of drug resistance of various field weeds. Therefore, there is an urgent need to develop a new type of herbicidal pesticide for soybean, peanut, sunflower and cotton fields with high efficiency, low toxicity, low residue and safety. [0003] The microcapsule suspension-suspension agent is prepared by compounding metolachlor spermatozoa and profenachlor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/84A01N37/22A01N25/10A01N25/04A01N25/28A01P13/00
CPCA01N43/84A01N37/22A01N25/10A01N25/04A01N25/28Y02A50/30
Inventor 刘润峰母玉林熊利鹏母金良陈坤叶小妹高威
Owner PILAR SHANGHAI CO LTD
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