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Paclobutrazol water dispersible granules/tablets and preparation method thereof

A technology of dispersants and dispersible granules, which is applied in botany equipment and methods, biocides, animal repellents, etc., can solve the problems of low suspending agent content, inconvenient transportation, small powder particles, etc., and achieve simple preparation process, Good storage stability, not easy to produce the effect of phytotoxicity

Active Publication Date: 2013-09-04
中化化工科学技术研究总院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small particles, the powder is easy to drift, which brings many adverse effects to the operator and the surrounding environment during production and field use
Suspending agents generally have problems such as low content, inconvenient transportation, and difficult packaging

Method used

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  • Paclobutrazol water dispersible granules/tablets and preparation method thereof
  • Paclobutrazol water dispersible granules/tablets and preparation method thereof
  • Paclobutrazol water dispersible granules/tablets and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 15

[0032] The preparation of embodiment 15% paclobutrazol water-dispersible granules

[0033] The selection and ratio of original drug and auxiliary agent are: 95% paclobutrazol original drug 5.3% (5.0%), dispersant is acrylic acid copolymer salt 2.0%, calcium lignosulfonate 5.0%, wetting agent pulls apart powder 4.0% %, the disintegrant is ammonium sulfate 8.0%, the binder is starch 7.0%, and the filler is bentonite to make up 100%.

[0034] Calculate the dosage of each component according to the above ratio, weigh, and mix evenly; the formula material is granulated / compressed after being pulverized by ultra-fine airflow; dried; selected. Product testing is carried out according to the quality control indicators of water-dispersible granules / or tablets, including the content of active ingredients, wettability, dispersibility (disintegration), foamability, pH range, suspension rate and thermal storage stability, etc. The specific method is as follows:

[0035] Use a liquid chro...

Embodiment 1

[0039] The performance indicators of the paclobutrazol water-dispersible granules prepared in Example 1 are: paclobutrazol content 5.0%, wettability qualified (15 seconds), dispersibility (disintegration) qualified (6 times), foaming property qualified (10 milliliters), The water content is 1.5%, the pH value is 6.2, the suspension rate is 86%, the sieve analysis is 99%, the heat storage stability is qualified, and the effective component decomposition rate is 1.1%.

Embodiment 210

[0040] The preparation of embodiment 210% paclobutrazol water-dispersible granules

[0041] The selection and proportioning of the original drug and auxiliary agents are: 95% paclobutrazol original drug 10.6% (10.0%), the dispersant is acrylic acid copolymer salt 6.0%, the wetting agent is sodium lauryl polyoxyethylene ether sulfate 3.0%, The disintegrant is urea 8.0%, the binder is dextrin 3.0%, and the filler is light calcium carbonate to make up 100%. The specific preparation process is the same as in Example 1.

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Abstract

The invention discloses paclobutrazol water dispersible granules / tablets and a preparation method thereof. The paclobutrazol water dispersible granules / tablets comprise the following raw materials in percentage by mass: 0.1 to 90.0 percent of paclobutrazol, 1.0 to 8.0 percent of dispersing agent, 1.0 to 5.0 percent of wetting agent, 0 to 8.0 percent of disintegrating agent, 0 to 8.0 percent of bonding agent and the balance of fillers. The preparation method comprises the following steps of: mixing the raw materials of the paclobutrazol water dispersible granules / tablets, crushing by ultramicro airflow, granulating / tabletting, drying, selecting and detecting to obtain the paclobutrazol water dispersible granules / tablets. The paclobutrazol water dispersible granules / tablets are safe to environment, people and livestock and other beneficial organisms, avoid medical hazards, are controlled to be released and orientated easily, are free from dust, ensure high disintegration speed of the granules, avoid packaging pollution, have the excellent storage stability and a simple preparation process, and are suitable for industrial production and large-area popularization.

Description

technical field [0001] The invention relates to a water-dispersible granule / or tablet of a plant growth regulator and a preparation method thereof, in particular to a water-dispersible granule / or tablet of paclobutrazol and a preparation method thereof. Background technique [0002] Paclobutrazol is currently the most widely used triazole plant growth regulator in the world. It has the effects of delaying plant growth, inhibiting stem elongation, shortening internodes, promoting plant leaf division, increasing plant stress resistance, and increasing yield. Widely used in rice, wheat, peanuts, fruit trees, tobacco, rapeseed, soybeans, flowers, lawns and other plants. [0003] Structural formula: [0004] [0005] Molecular formula: C 15 h 20 CIN 3 o [0006] English common name: paclobutrazol [0007] CAS accession number: 76738-62-0 [0008] Chemical name: (2RS, 3RS)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol [0009] Physical and chemica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/14A01N25/34A01N43/653A01P21/00
Inventor 张宗俭张小军卢忠利
Owner 中化化工科学技术研究总院有限公司
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