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Mixture of encapsulated phenethofenprox and emulsified d-prallethrin

A technology of dextramethrin and phenothrin, applied in the field of new water-based preparations, which can solve the problems of decreased effectiveness and insufficient residual effects

Active Publication Date: 2022-07-08
杰斯蒙德控股公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as shown in Table 4 of this document, this formulation showed insufficient residual effects within seven days of application
Example 2C of the document illustrates a formulation containing tetrahydrothrin and permethrin, but this formulation also experienced a marked decrease in effectiveness over three months

Method used

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  • Mixture of encapsulated phenethofenprox and emulsified d-prallethrin

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0078] Production of Capsule Suspension (CS)

[0079] For 5 kg of final product, 1670 g of capsule suspension (CS) are required. All data are expressed in weight percent.

[0080] Table 4

[0081]

[0082] Prior to the emulsification process, the water and oil phases were placed in a 2-liter jacketed reactor at 40°C.

[0083] In a 2-liter jacketed reactor equipped with a clawless mixer and a high shear mixer, the aqueous phase was added at 40°C. When the clawless mixer was turned on at 1600 rpm, the oil phase was added very quickly (~1 minute) to the water phase, thereby starting the emulsification polymerization process.

[0084] After complete emulsification of the entire oil phase, the high shear mixer was turned on at 4600 rpm. The emulsion polymerization ended after 4 minutes.

[0085] The capsule suspension was then transferred at 60°C to another jacketed reactor equipped only with an anchor stirrer at 36 rpm.

[0086] The capsule suspension was stirred for 3 ho...

example 2

[0099] Production of Capsule Suspension (CS)

[0100] For a 5kg final product, 1670g CS is required. All data are expressed in weight percent.

[0101] Table 6

[0102] oil phase weight percentage water box weight percentage 1R-trans-phenothrin 31.932 Synperonic PE / F 127 2.25 TMXDI 0.450 BrijO20 0.056 ONGRONAT 2100 3.150 Zephrym PD3315 3.00 Cymel 1170 0.300 water 44.912 Radia 7117 13.500 Cycat 4040 0.45

[0103] The production method is the same as in Example 1.

[0104] Production of Emulsion in Water (EW)

[0105] For a 5kg final product, 3330g emulsion in water (EW) is required. All data are expressed in weight percent.

[0106] Table 7

[0107]

[0108]

[0109] The production of the aqueous emulsion and the production of the final suspension was carried out as in Example 1.

example 3

[0111] Production of Capsule Suspension (CS)

[0112] For 5 kg of final product, 1670 g of capsule suspension (CS) are required. All data are expressed in weight percent.

[0113] Table 8

[0114] oil phase weight percentage water box weight percentage 1R-trans-phenothrin 31.932 Synperonic PE / F 127 2.52 TMXDI 0.900 BrijO20 0.056 ONGRONAT 2100 4.200 Zephrym PD3315 3.0 Cymel 1170 0.75 water 41.102 Radia 7117 15.00 Cycat 4040 0.54

[0115] The production method is the same as in Example 1.

[0116] Production of Emulsion in Water (EW)

[0117] For a 5kg final product, 3330g emulsion in water (EW) is required. All data are expressed in weight percent.

[0118] Table 9

[0119] Propylene Glycol 11.25 Zephrym PD3315 3.00 Xanthan Gum 0.525 Break Thru AF5503 0.0225 Proxel GXL 0.15 water 83.442 Prallethrin TG 1.61

[0120] The production of the aqueous emulsion and...

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Abstract

The invention relates to a mixture of encapsulated phenethofenprox and emulsified D-prallethrin, in particular to a composition of microencapsulated phenethofenprox and emulsified D-prallethrin, preferably in a ratio of 10: 1, in water. Such compositions are prominently suitable as insecticides. To this end, the concentration of phenethofenprox is about 0.1 mass% and the concentration of dextro-prallethrin is 0.01 mass%. The insecticide at a concentration of 20 ml / m2 to 60 ml / m2 is applied to non-porous surfaces, and the insecticide at a concentration of 40 ml / m2 to 120 ml / m2 is applied to porous surfaces. Although the dosage of the active ingredients is very small, the insecticide shows a rapid knockdown effect and a long-term castration effect.

Description

technical field [0001] The present invention relates to a new water-based formulation comprising two active ingredients, namely fenothrin and dexpromethrin. Background technique [0002] Products currently on the market are in the form of emulsions in water, or they are in the form of emulsifiable concentrates that can be used in aerosols, or as ready-to-use solutions of active ingredients. [0003] The following product compositions are available: [0004] Dexamethrin 0.25% / Dexothrin 0.125%. [0005] Dexamethrin 0.20% / Dexfenthrin 0.1% / PBO 0.90%. [0006] Dexamethrin 0.33% / Dexfenthrin 0.13%. [0007] All of these products have disadvantages, such as: [0008] lower residual effects; [0009] high toxicity; [0010] higher burden on the human body; [0011] higher concentrations of active ingredients; [0012] full availability of the product at the time of use, which could lead to overuse; [0013] Unable to control the biodegradability of active ingredients...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/00
CPCA01N53/00Y02A50/30A01N25/04A01N25/28
Inventor 米格尔·吉梅诺·塞拉博尔贾纳·卢布拉
Owner 杰斯蒙德控股公司
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