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Preparation method of nano dispersing compound

A nano-composition and nano-dispersion technology, applied in botany equipment and methods, animal repellents, plant growth regulators, etc., can solve the problems of solvents occupying space, toxicity, environment, etc.

Inactive Publication Date: 2018-06-29
JIANGSU WEUNITE FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of non-polar hydrophobic solvents is undesirable because the solvent takes up space in the microemulsion and also requires the use of more surfactant, creating potential environmental and toxicity concerns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The agriculturally active nanodispersion of the present invention preferably consists essentially of:

[0013] a) a dispersed phase consisting essentially of particles of about 10 to about 100 nm solid, water-insoluble agriculturally active ingredient, wherein the concentration of the solid, water-insoluble agriculturally active ingredient in the nanodispersion is about 10-40 % by weight, more preferably about 15-35% by weight;

[0014] b) about 10-40% by weight, more preferably about 20-40% by weight of a surfactant, preferably ethoxylated castor oil;

[0015] c) Optionally one or more co-surfactants.

[0016] d) Make up 100% with water.

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PUM

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Abstract

The invention relates to a method for preparing a biological active nano dispersoid containing a solid water insoluble biological active component. The method comprises the steps that a, the solid biological active component is heated under the situation of existence of ethoxylation castor oil and optional one or more kinds of auxiliary surface active agents, wherein the range of HLB (hydrophile lipophile balance) of the ethoxylation castor oil and one or more kinds of the auxiliary surface active agents (if existing) is 7 to 16, and a biological active component / a surface active agent compound is generated at the temperature which is high enough to liquefy the biological active component; b, water is added into the biological active component / surface active agent compound so as to generate a colloid compound; and c, the colloid compound is cooled to be at the temperature which can solidify the biological active component so as to generate the biological active nano dispersoid containing the solid water insoluble biological active component.

Description

technical field [0001] The invention belongs to the technical field of nano-dispersion system, and relates to a nano-dispersion composition made of water-insoluble bioactive components. Background technique [0002] Bioactive chemicals are usually insoluble in water, and exist in the form of dissolving in organic solvents and suspensions or emulsions in practical applications. However, some are easy to decompose in organic solvents, and are gradually abandoned because of the large amount of organic solvents that are easy to pollute the environment and easy to decompose. In suspensions and emulsions, they are easy to separate and cause poor physical stability. [0003] In order to solve the phenomenon that bioactive chemicals are easy to decompose in organic solvents and easy to separate in suspensions or emulsions, active substances are often processed into water-based microemulsions. Due to the high stability of microemulsions, they do not contain organic solvents and Easy...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N25/30
CPCA01N25/04A01N25/30
Inventor 蒙健宋晓晖
Owner JIANGSU WEUNITE FINE CHEM CO LTD