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Surfactant Composition for Agricultural Chemicals

Inactive Publication Date: 2011-04-21
LION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention aims at solving various problems in the art, and achieving the following object. Specifically, the object of the present invention is to provide a surfactant composition for agricultural chemicals, which has excellent surface activity (e.g. solubilization ability, dispersibility, permeability, low foamability, and defoaming ability), excellent stability at low temperature, desirable biodegradability, and excellent safety in the environment (e.g. no phytotoxicity and fish toxicity).
[0019]According to the present invention, various problems in the art can be solved, the aforementioned object can be achieved, and a surfactant composition for agricultural chemicals, which has an excellent surface activity (solubilization ability, dispersibility, permeability, low foamability, and defoamability), excellent stability at low temperature, and excellent safety in the environment (e.g. no phytotoxicity and fish toxicity) can be provided.

Problems solved by technology

Due to this, there are cases where the sprayed agricultural chemical may not provide a sufficient effect thereof.

Method used

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  • Surfactant Composition for Agricultural Chemicals
  • Surfactant Composition for Agricultural Chemicals
  • Surfactant Composition for Agricultural Chemicals

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0109]An alumina-magnesia complex oxide (Kyowado 300, manufactured by Kyowa Chemical Industry Co., Ltd.) expressed by the chemical formula 2.5MgO.Al2O3.nH2O was baked at 750° C. for 3 hours under nitrogen gas streams to thereby obtain a baked alumina-magnesia complex oxide (Al / Mg molar ratio=0.44 / 0.56) catalyst. Into a 4-L autoclave, 1,073 g of methyl oleate (fatty acid methyl ester derived from C18 fractions derived from palm oil, product name: PASTELL M182, manufacturer: Lion Corporation, iodine value: 91), 5 g of the obtained catalyst, and 0.58 g of 40% KOH as a modifying agent for the catalyst were added, and the inner atmosphere of the autoclave was replaced with nitrogen gas twice.

[0110]Thereafter, the temperature was increased to 180° C., the pressure inside the reaction vessel was returned to normal pressure by nitrogen, and then 628 g of PO (3 moles relative to 1 mole of methyl oleate) was gradually introduced to the vessel. The pressure just after the completion of the int...

example 2

[0112]A compound 1B was obtained by a block addition reaction of PO and EO in the same manner as in Example 1, provided that the amount of PO added was changed to 565 g (2.7 moles relative to 1 mole of methyl oleate), and the obtained intermediate product 1B was subjected to vacuum distillation by reducing the pressure to 10 Torr or lower, while increasing the temperature stepwise from 175° C. to 200° C. stepwise, so as to remove unreacted methyl ester contained in the intermediate product 1B. The intermediate product 1B contained 0.8% by mass of unreacted fatty acid methyl ester. The compound 1B obtained by further subjecting to an addition reaction of EO contained 0.3% by mass of unreacted fatty acid methyl ester. The results of measurements and evaluation are shown in Tables 1 and 2.

example 3

[0113]A compound 1C was obtained by performed a block addition reaction of PO and EO in the same manner as in Example 2, provided that 40% KOH was not added as the modifying agent for the catalyst. The intermediate product 1C after the vacuum distillation contained 1.8% by mass of fatty acid methyl ester. The compound 1C obtained by further subjecting to an addition reaction of EO contained 1.6% by mass of unreacted fatty acid methyl ester. The results of measurements and evaluation are shown in Tables 1 and 2.

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Abstract

A surfactant composition for agricultural chemicals, containing fatty acid polyoxyalkylene alkyl ether expressed by the following general formula (I),R1CO(EO)m(PO)nOR2  (I)wherein the fatty acid polyoxyalkylene alkyl ether has a narrow ratio of 55% by mass or more, where the narrow ratio is expressed by the following formula (A):Narrowratio=∑i=nMAX-2i=nMAX+2Yi(A)

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation application of PCT / JP2009 / 059459, filed on May 22, 2009.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a surfactant composition for agricultural chemicals, which is suitably used as an emulsifier, dispersing agent, spreading agent, functional spreading agent (adjuvant), and water dispersible agent for agricultural chemicals.[0004]2. Description of the Related Art[0005]In order to allow agricultural chemicals to sufficiently exhibit their effects, formulations of agricultural chemicals, such as bactericides, insecticides, acaricides, weed-killers, and plant growth regulators, are suitably selected considering efficiency for spraying an agricultural chemical for use, safety thereof, or the like. Among such formulations, an emulsified dispersion liquid of an agricultural chemical is expected to be entirely and uniformly deposit on the target for spraying, and has been u...

Claims

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Application Information

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IPC IPC(8): A01N25/00C07C53/126C07C57/03A01P7/04A01P7/02A01P1/00A01P13/00A01P21/00
CPCA01N25/30C07C67/24C07C67/08
Inventor KANETANI, AKINORIIZUMOTO, HIROYUKISATO, SHIROKANO, TAKAAKI
Owner LION CORP
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