Seed coating and method for preparing same

A bactericide and tin catalyst technology, applied in the field of pesticides, can solve the problems of unstable release of pesticide active ingredients, poor biodegradability, and increased environmental pressure, and achieve strong biodegradability, controllable release speed, and reduced environmental pollution. Effect

Inactive Publication Date: 2018-03-09
JIANGXI TIANREN ECOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned patents require the use of aromatic hydrocarbon solvents in the preparation process of microcapsule suspensions, which increases the environmenta

Method used

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  • Seed coating and method for preparing same
  • Seed coating and method for preparing same

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preparation example Construction

[0036] The present invention also provides the preparation method of the seed coating agent described in the above technical scheme, comprising the following steps:

[0037] 1) Mixing liquefied animal fiber polysaccharides, polyether polyols and 40-60% active ingredients of pesticides evenly to obtain preparatory liquid A;

[0038] 2) Mix the preparatory solution A, triethylenediamine, silicon surfactant and tin catalyst obtained in step 1) evenly to obtain preparatory solution B;

[0039] 3) uniformly mixing the diisocyanate compound with the remaining pesticide active ingredients to obtain a preparatory solution C;

[0040] 4) Mix the preparatory solution B and the preparatory solution C evenly to obtain the seed coating agent.

[0041] In the present invention, the preparatory liquid A is obtained by uniformly mixing polyols and some active ingredients of pesticides. In the present invention, the polyols are liquefied animal fiber polysaccharides and polyether polyols. In...

Embodiment 1

[0048] Mix 5g of liquefied animal fiber polysaccharide and 5g of polyether polyol N-330 evenly to obtain preparatory solution A;

[0049] Mix 10 g of preparatory solution A with 15 g of toluene diisocyanate (TDI), and stir at 50 rpm for 20 min to obtain a seed coating agent.

Embodiment 2

[0051] Mix 10g clothianidin, 4g liquefied animal fiber polysaccharide, and 6g polyether polyol N-330 evenly to obtain preparatory solution A;

[0052] Stir 10 g of xylene methane diisocyanate (MDI) and 20 g of toluene diisocyanate (TDI) evenly to obtain preparatory solution C;

[0053] Mix 10 g of preparatory solution A with 8 g of preparatory solution C, and stir at 100 rpm for 20 minutes to obtain a seed coating.

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Abstract

The invention provides a seed coating. The seed coating comprises, by weight, 5-20 parts of polyols substances, 0-20 parts of pesticide active components, 0-0.5 part of triethylene diamine, 0-0.5 partof silicon surfactants, 0-0.25 part of tin catalysts and 5-20 parts of diisocyanate compounds. The polyols substances are liquefied animal fiber polysaccharides and polyether polyols. The seed coating has the advantages of high biodegradability, speediness, simplicity and convenience in operation, controllable release speed and the like.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a seed coating agent and a preparation method thereof. Background technique [0002] The seeds in the dry or wet state are wrapped with a pesticide composition containing a binder to form a protective layer with certain functions and coating strength outside the seeds. This process is called seed coating. Combination substances are called seed coatings. [0003] The use of seed coating agents to coat seeds can promote the standardization, pelletization, and commercialization of improved varieties. After coating with seed coating agents, the quality of seeds can be improved, so that the emergence of seedlings is guaranteed to be complete, complete, and strong, and seeds can be saved at the same time; it can also prevent and control diseases. Insects, rodents and deficiency diseases, the coated seeds are sown into the soil, the seed coating forms a barrier around the seeds to p...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N25/28A01N63/04A01N51/00A01N43/40A01C1/06A01P3/00A01P7/04A01P1/00A01P21/00
CPCA01C1/06A01N25/04A01N25/28A01N43/40A01N51/00A01N63/30Y02A50/30
Inventor 曾升华李肖宇吴俊杰石峥梁小文罗双燕罗建辉石仕福王根豪严艺波李英武
Owner JIANGXI TIANREN ECOLOGY
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