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Microcapsule aqueous suspension of herbicide sethoxydim and preparation method thereof

A technology of sethoxydim and microcapsules, applied in the direction of herbicides and algicides, botanical equipment and methods, biocides, etc., can solve the problems of complex preparation process, difficult degradation of wall materials, long reaction time, etc., and achieve the goal of preparation The process is simple, the effect of preventing drift and improving stability

Inactive Publication Date: 2012-02-08
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The preparation process of the invention patent application is relatively complicated, the reaction time is long, and the wall material of the microcapsule product is not easy to degrade

Method used

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  • Microcapsule aqueous suspension of herbicide sethoxydim and preparation method thereof

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Embodiment Construction

[0037] The following examples are only used to illustrate the present invention, but not to limit the present invention.

[0038] The composition of each embodiment is shown in the following table:

[0039]

[0040] In the table above:

[0041] ①Emulsifier R 1 -R 5 Respectively represent alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, styrene-maleic anhydride copolymer; wherein: Example 1 , R in Example 4 1 Be respectively the product NP-10, OP-10 of commercially available alkylphenol polyoxyethylene ether series; R in embodiment 2, embodiment 5, embodiment 6 2 Be the product MOA-3 of commercially available fatty alcohol polyoxyethylene ether series; R in embodiment 2 3 Be the product Span 60 of commercially available sorbitan fatty acid ester series; R in embodiment 4, embodiment 8 4 It is Tween 80, a product of the commercially available polyoxyethylene sorbitan fatty acid ...

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Abstract

The invention discloses a microcapsule aqueous suspension of the herbicide sethoxydim and a preparation method thereof. It is a sustained-release microcapsule aqueous suspension that adopts the complex coacervation method, uses sethoxydim as the core material, and uses gelatin and gum arabic as the wall materials. The preparation process of the present invention is simpler and more convenient, and the wall material used has the advantages of non-toxicity and biodegradability; the microcapsule water suspension has achieved a high degree of product stability, long-acting slow-release of active ingredients, and has anti-drifting and super high-efficiency , low toxicity, economy and safety features, it is a kind of green and environment-friendly preparation. The microcapsules provided by the invention can be widely used in the control and control of monocotyledonous weeds in dicotyledonous crop fields.

Description

technical field [0001] The invention relates to a herbicide microcapsule and a preparation method thereof, in particular to a microcapsule water suspension of the herbicide sethoxydim and a preparation method thereof. Background technique [0002] Sethoxydim (sethoxydim) is a synthetic product of cyclohexenone oxime, the chemical name is 2-[(1-ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3 -Hydroxy-2-cyclohexen-1-one is a systemic herbicide for stem and leaf treatment, used to control monocotyledonous weeds in dicotyledonous crop fields, with safety, broad spectrum, high efficiency and low The advantages of toxicity, no harmful effects on the following crops. [0003] Existing sethoxydim formulations are mainly emulsifiable concentrates and engine oil emulsifiable concentrates, which have many disadvantages: they contain a large amount of organic solvents, and their discharge not only causes waste of resources, but also seriously pollutes the ecological environment; it is uns...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/04A01N25/28A01N35/10A01P13/00
Inventor 冯薇葛艳蕊张林雅张淑琴
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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