Cyclodextrin of sethoxydim, or its hydrophilic derivant clathrate compound, and method of preparing the same

A technology of cyclodextrin and derivatives, applied in the fields of botanical equipment and methods, chemicals for biological control, biocides, etc., can solve the problems of volatile, short duration, time-consuming, etc. Slow release effect

Inactive Publication Date: 2009-04-08
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Contains a large amount of organic solvents, such as toluene, xylene, etc., whose discharge not only causes waste of resources, but also seriously pollutes the ecological environment.
[0004] 2. Unstable to light and heat, the loss and decomposition of pesticides caused by wind, sun and rain are serious, and the duration of effect is short.
[0005] 3. It is volatile and has a low utilization rate, resulting in a large amount of pesticides and high costs.
[0006] 4. Easy to drift and harm adjacent monocotyledonous plants
[0007] Therefore, in the growth period of crops, repeated application of pesticides is required, resulting in labor-intensive, time-consuming, and drug-consuming, and aggravated environmental pollution and damage to adjacent monocotyledonous plants.

Method used

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  • Cyclodextrin of sethoxydim, or its hydrophilic derivant clathrate compound, and method of preparing the same

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Embodiment Construction

[0034] Below in conjunction with specific embodiment the present invention is described in further detail:

[0035]

[0036] In the composition of above-mentioned embodiment, P 1 -P 8 2-hydroxypropyl-β-cyclodextrin, 2,3-hydroxypropyl-β-cyclodextrin, 3-hydroxypropyl-β-cyclodextrin, 2-hydroxy-isobutyl-β- Cyclodextrin, Hydroxyethyl-β-cyclodextrin, 2,6-Dimethyl-β-cyclodextrin, Methyl-β-cyclodextrin, Carboxymethyl-β-cyclodextrin;

[0037] Emulsifier R 1 , R 3 , R 4 , R 7 Be respectively alkylphenol polyoxyethylene ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, styrene-maleic anhydride copolymer; Wherein embodiment (one), (three) in R 1 For commercially available Tianjin Haoyuan Fine Chemical Co., Ltd. product NP-10; R in embodiment (two) 1 Be commercially available product OP-10; R in the embodiment (four) 3 Be the commercially available product Span-60; R in the embodiment (five), (six), (nine) 4 Be commercially available product Tween--80...

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PUM

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Abstract

The invention discloses a cyclodextrin sethoxydim or hydrophilic derivative inclusion compound of herbicide, as well as a preparation method thereof. Sethoxydim and cyclodextrin or cyclodextrin hydrophilic derivative is used as main raw materials and is mixed with additives and deionized water, and the sethoxydim is wrapped in the cyclodextrin or the cyclodextrin hydrophilic derivative by an inclusion complex method, so as to prepare the inclusion compound. The inclusion compound realizes the solidification of liquid pesticide, the high stabilization of products and the sustained release trend of effective constituent, is characterized in drift prevention, super-high efficiency, super-low toxicity, economy and safety, is an environment-friendly preparation, and can be used for preventing and removing monocotyledonous weeds in dicotyledonous crop fields.

Description

technical field [0001] The invention relates to a herbicide inclusion compound and a preparation method thereof, in particular to a sethoxydine cyclodextrin or a hydrophilic derivative inclusion compound and a preparation method thereof. Background technique [0002] Sethoxydim (sethoxydim), also known as sethoxydim, belongs to the synthetic product of cyclohexenone oxime, and its chemical name is 2-[(1-ethoxyimino)butyl]-5-[2-(ethylthio Base) propyl] -3-hydroxy-2-cyclohexen-1-one, it is a herbicide for stem and leaf treatment with systemic conductivity, it has the advantages of safety, broad spectrum, high efficiency and low toxicity, suitable for For the control of monocotyledonous weeds in dicotyledonous crop fields, the existing formulations are mainly emulsifiable concentrates and engine oil emulsions, which have the following disadvantages: [0003] 1. Contains a large amount of organic solvents, such as toluene, xylene, etc., whose discharge not only causes waste of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N35/10A01N25/22A01P13/00
Inventor 葛艳蕊冯薇张林雅张淑琴
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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