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Stable pesticide microcapsule suspending agent

A microcapsule suspension and stable technology, applied in the direction of insecticides, acaricides, biocides, etc., can solve the problems of alachlor emulsion in water development limitations, poor physical stability of preparations, pollution of the environment, etc., to solve the problem of storage Stability, satisfying quick-acting and long-lasting effects, and avoiding drug damage

Inactive Publication Date: 2016-05-11
NANJING GAOZHENG AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] At present, the single-dose formulation of alachlor is mainly emulsifiable concentrate, which consumes a large amount of organic solvents, pollutes the environment and wastes resources, and has been included in the ranks of elimination; it plays a positive role in environmental protection, but due to the introduction of a large amount of water, so that the active ingredients are easier to decompose, and the physical stability of the preparation is poor, so that the development of alachlor emulsion in water is greatly restricted

Method used

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  • Stable pesticide microcapsule suspending agent
  • Stable pesticide microcapsule suspending agent
  • Stable pesticide microcapsule suspending agent

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1: a kind of pirimiphos-methyl microcapsule suspension, wherein the percentage composition of each component is as follows:

[0040] Pirimiphos-methyl content 50%, polyurethane 10%, ethyl cellulose 10%, sulfonate anionic emulsifier 10%, xanthan gum (thickener) 2%, silicone (defoamer) 1%, Benzoic acid 0.5%, water makes up the balance.

Embodiment 2

[0041] Embodiment 2: a kind of pirimiphos-methyl microcapsule suspension, wherein the percentage composition of each component is as follows:

[0042] The content of pyrimiphos-methyl is 50%, paratoluene-2,4-diisocyanate 8%, ethylenediamine 8%, phosphate emulsifier 7%, xanthan gum (thickener) 1%, silicone (disinfectant) Foaming agent) 0.5%, Casson (preservative) 0.5%, water to make up the balance.

Embodiment 3

[0043] Embodiment 3: a kind of pirimiphos-methyl microcapsule suspension, wherein the percentage composition of each component is as follows:

[0044] Pirimiphos-methyl content 40%, polyurethane 6%, ethyl cellulose 6%, polyoxyalkyl ether emulsifier 5%, xanthan gum (thickener) 0.5%, silicone (defoamer) 0.3%, Kathon (preservative) 0.2%, water to make up the balance.

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Abstract

The invention discloses a stable pesticide microcapsule suspending agent which is prepared from, by percentage content, 1-60% of effective components, 1-10% of an oily capsule material, 1-10% of an aqueous capsule material, 2-10% of auxiliaries, 0.1-1% of a defoaming agent, 0.1-5% of a thickening agent, 0.1-1% of an anti-corrosion agent and the balance water. Organic solvents are not used in a formula and in a production method. Pesticide products and the auxiliaries are mixed firstly in the preparation process, and it is avoided that the organic solvents are used for assisting in dissolving in the production process. A proper dispersion agent and the capsule materials are selected for compatibility in the method, the suspension rate of the pesticide microcapsule suspending agent is increased, a good low-temperature heat-storage effect is achieved, and the problems that an existing pesticide preparation produced in the prior art is low in suspension rate, and layering and blocking are severe are solved.

Description

technical field [0001] The invention relates to the field of preparation methods of insecticides, in particular to a stable pesticide suspension and a preparation method thereof. Background technique [0002] Pirimiphos-methyl (pirimiphos-methyl), also known as chrysanthemum, methazine, diazepam, Baoanding, yatsong, etc., was developed by ICI Company (now Zeneca Agrochemical Company) in 1974. The chemical name of the active ingredient is O, O-dimethyl-O-2-diethylamino-6-methylpyrimidin-4-yl phosphorothioate. [0003] Pirimiphos-methyl is a low-toxicity, quick-acting organophosphorus insecticide and acaricide with strong stomach toxicity, contact killing, fumigating [0004] Steaming action and good penetration. Pirimiphos-methyl is not only used to control chewing and sucking pests and larvae on fruit trees, cotton, vegetables and other crops, but also widely used to control grain storage pests and sanitary pests. The control effect is particularly good. Excellent variety...

Claims

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Application Information

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IPC IPC(8): A01N57/16A01N53/08A01N37/46A01N37/26A01N25/28A01N25/04A01P7/04A01P7/02A01P3/00A01P13/00
CPCA01N57/16A01N25/04A01N25/28A01N37/26A01N37/46A01N53/00A01N2300/00
Inventor 汪莘杰汪茂勤冯乃林王欣欣
Owner NANJING GAOZHENG AGROCHEM
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