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Compounding process for low-melting-point suspending agents

A low melting point, suspending agent technology, applied in the field of pesticides, can solve the problems of product formula screening and production difficulty, and achieve the effects of high production efficiency, simple production method and safe processing method

Inactive Publication Date: 2018-11-13
郭秦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcoming of the difficulty of product formula screening and production existing in the prior art, and a kind of composite low melting point suspending agent technology proposed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A compound low melting point suspending agent process, comprising the steps of:

[0024] S1. Preparation of low-melting compound compound suspension: by mass, including 1-50% of one low-melting compound, 1-50% of another low-melting compound, 1-8% of wetting agent, and 2-5% of dispersing agent %, antifreeze 2-6%, preservative 0.1-0.5%, thickener 1-8%, defoamer 0.1-0.5%, and the balance is water;

[0025] S2. Weighing a quantitative low-melting-point original drug, wetting agent, dispersant, antifreeze, preservative, defoamer and water, mixing and shearing to obtain a uniform mixture;

[0026] S3. Sand-mill the mixed liquid obtained in step S2 to a particle size of 1-5 μm, add a thickener and shear to obtain material A evenly, and set aside, wherein the sand-milling temperature is not greater than 30°C;

[0027] S4, according to the above steps, another kind of low melting point original drug is sand-milled into material B;

[0028] S5. Mix A and B materials together i...

Embodiment 2

[0039] A compound low melting point suspending agent process, comprising the steps of:

[0040] S1. Preparation of low-melting point compound compound suspension: by mass, including 1-50% of one low-melting point compound, 1-25% of another low-melting point compound, 1-4% of wetting agent, and 2-3% of dispersing agent %, antifreeze 2-3%, preservative 0.1-0.3%, thickener 1-4%, defoamer 0.1-0.3%, and the balance is water;

[0041] S2. Weighing a quantitative low-melting-point original drug, wetting agent, dispersant, antifreeze, preservative, defoamer and water, mixing and shearing to obtain a uniform mixture;

[0042] S3. Sand-mill the mixed liquid obtained in step S2 to a particle size of 1-5 μm, add a thickener and shear to obtain material A evenly, and set aside, wherein the sand-milling temperature is not greater than 30°C;

[0043] S4, according to the above steps, another kind of low melting point original drug is sand-milled into material B;

[0044] S5. Mix A and B ma...

Embodiment 3

[0055] A compound low melting point suspending agent process, comprising the steps of:

[0056] S1. Preparation of low-melting compound compound suspension: by mass, including 0.5-10% of a low-melting compound, 0.5-10% of another low-melting compound, 0.5-2% of a wetting agent, and 0.5-2% of a dispersing agent %, antifreeze 1-2%, preservative 0.1-0.2%, thickener 0.5-2%, defoamer 0.1-0.2%, and the balance is water;

[0057] S2. Weighing a quantitative low-melting-point original drug, wetting agent, dispersant, antifreeze, preservative, defoamer and water, mixing and shearing to obtain a uniform mixture;

[0058] S3. Sand-mill the mixed liquid obtained in step S2 to a particle size of 1-5 μm, add a thickener and shear to obtain material A evenly, and set aside, wherein the sand-milling temperature is not greater than 30°C;

[0059] S4, according to the above steps, another kind of low melting point original drug is sand-milled into material B;

[0060] S5. Mix A and B material...

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Abstract

The invention discloses a compounding process for low-melting-point suspending agents, the compounding process includes the following steps of weighing certain amounts of low-melting-point crude drugs, wetting agents, dispersing agents, anti-freezing agents, preservatives, defoaming agents and water, performing uniform mixing and shearing to obtain mixed liquid, sanding the mixed liquid, obtainedin the step S2, at the temperature of less than 30 DEG C until the particle size reaches 1-5 micrometers, adding thickening agents for uniform shearing to obtain materials A for standby use, sanding another crude drugs according to the above steps into materials B, mixing the materials A with the materials B proportionally, and performing uniform stirring and mixing to obtain the low-melting-pointcomposite compound suspending agents, the compounding process based on a new concept of step-by-step addition has the advantages that the production safety is guaranteed, the production cost is reduced, the processing method is safe, the production efficiency is high, the production method is simple, and the formula is easy to screen.

Description

technical field [0001] The invention belongs to the field of pesticides, relates to the technical field of two or more low-melting-point compounds, and more specifically, relates to a process for compounding low-melting-point suspending agents. Background technique [0002] With the enhancement of people's awareness of environmental protection, due to its good fluidity, dispersibility, adhesion, and high biological activity, the pesticide suspension does not use any organic solvents and has no dust during production, which is harmful to operators, users and the environment. Safety, low production cost and other characteristics, it has developed rapidly at home and abroad in the past ten years, and has replaced some emulsifiable concentrates and wettable powders, becoming one of the most important processing formulations. [0003] Pesticide suspension concentrate is a new dosage form with a short development history in pesticide preparations and is under development and perfe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N47/24A01N43/653A01N55/10A01N31/14A01N53/06A01N53/08A01N43/50
CPCA01N25/04A01N31/14A01N43/50A01N43/653A01N47/24A01N53/00A01N55/00
Inventor 郭秦田勤俭崔利飞梁伟霞尹占杰郭齐
Owner 郭秦
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