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Pesticide composition and method for producing same

A technique of pesticide composition and manufacturing method, applied in the direction of botanical equipment and methods, chemicals for biological control, biocides, etc., to achieve the effect of promoting dissolution

Pending Publication Date: 2022-06-10
KUMIAI CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, it is not known so far that water-soluble polymers such as polyvinylpyrrolidone can promote the dissolution of pesticide active ingredients

Method used

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  • Pesticide composition and method for producing same
  • Pesticide composition and method for producing same
  • Pesticide composition and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Mix 3.75 parts of the above slurry, 2 parts of Dichlobenthiazox, 0.1 part of polyoxyethylene alkyl ether sulfate, 3 parts of pregelatinized starch, 3 parts of calcium carbonate and a specified amount of clay, so that the total amount is 100 parts (dry basis) . A predetermined amount of water was added to the mixture, kneaded, extruded and granulated using a sieve with a hole diameter of 1.2 mm, and then dried to remove water to obtain a granular pesticide composition.

[0068] Comparative Example 5

Embodiment 2

[0070] Comparative example 6

[0071] Mix 3.75 parts of the above slurry, 2 parts of Dichlobenthiazox, 0.1 part of polyoxyethylene alkyl ether sulfate, 3 parts of pregelatinized starch, 3 parts of calcium carbonate and a specified amount of clay, so that the total amount is 100 parts (dry basis) . A predetermined amount of water was added to the mixture, kneaded, extruded and granulated using a sieve with a hole diameter of 1.2 mm, and then dried to remove water to obtain a granular pesticide composition.

Embodiment 3

[0073] [Table 1]

[0074]The dissolution rate (dissolution concentration) of the case where the average particle size is less than 1 μm and contains PVP (dissolution concentration) is about 7 times the maximum of the case where the average particle size is 1 μm or more and does not contain PVP. In addition, the average particle size is It is about 4 times that of the case of less than 1 μm without PVP, about 3 times that of the case of the average particle size of 1 μm or more and containing PVP, and the increase rate of the dissolution rate is the highest when the average particle size is less than 1 μm and contains PVP.

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Abstract

Provided is a technique for promoting elution of an agrochemical active ingredient using a water-soluble polymer. The present invention is an agrochemical composition characterized by containing crystalline grains of an agrochemical active ingredient having a volume median diameter of less than 1 [mu] m and a water-soluble polymer, and a method for producing the same.

Description

Technical field [0001] The present invention relates to a pesticide composition and a granular pesticide preparation in which the dissolution properties of pesticide active ingredients are improved, as well as their manufacturing methods. Background technique [0002] The dissolution of pesticide active ingredients contained in pesticide compositions needs to be controlled and promoted according to various purposes. [0003] As means for controlling the dissolution of pesticide active ingredients, there are known methods of processing the pesticide active ingredient itself, such as microencapsulation described in Patent Document 1 and others, and powderization of sustained-release raw materials described in Patent Document 2 and others. , such as the hydrophobic substance-coated granules described in Patent Document 3 and others, and the hydrophobic substance-containing granules described in Patent Document 4 and others, which are structurally equipped with means for control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/10A01N25/00A01N25/04A01N25/12A01N43/54A01N43/56A01N43/60A01N43/80A01P3/00A01P7/04A01P13/00
CPCA01N25/00A01N25/04A01N25/10A01N25/12A01N43/54A01N43/56A01N43/60A01N43/80
Inventor 冈田优也巽大喜
Owner KUMIAI CHEM IND CO LTD
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