Pesticidal aqueous suspension composition

A technology of composition and suspending agent, applied in the field of pesticide aqueous suspending agent composition, can solve problems such as undisclosed silicone defoamer combination and the like

Active Publication Date: 2011-02-23
ISHIHARA SANGYO KAISHA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Patent Document 2 does not disclose a combination of an active ingredient of a poorly water-soluble pesticide and a silicone antifoaming agent.

Method used

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  • Pesticidal aqueous suspension composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) (a) Active ingredient: Cyazofamida (purity: 96.6%) 25.0 parts by weight

[0042] (2)(b) Silicone-based surfactant: SILWET 408 (trade name, manufactured by Momentive Performance Materials) 9.0 parts by weight

[0043] (3) (c) Viscosity reducer: Potassium salt of polyoxyethylene tristyrylphenyl ether phosphate Soprophor FLK / 70 (trade name, manufactured by Rhodia Nicca Ltd.)

[0044] 2.2 parts by weight

[0045] (4) (c) Viscosity reducer: 9.0 parts by weight of propylene glycol

[0046] (5)(d) Antifoaming agent: Rhodorsil Antifoam 432 (trade name, manufactured by Rhodia Nicca Ltd.) 0.9 parts by weight

[0047] (6) (e) pH regulator: 0.2M phosphate buffer (Na 2 HPO 4 -NaH 2 PO 4 )

[0048] 51.7 parts by weight

[0049] (7) (f) Dispersant: sodium alkylnaphthalenesulfonate-formaldehyde condensate (Supragil MNS / 25 (trade name, manufactured by Rhodia Nicca Ltd.)) 2.2 parts by weight ...

Embodiment 2

[0052] (1) (a) Active ingredient: Cyazofamida (purity: 93.3%) 18.9 parts by weight

[0053] (2)(b) Silicone-based surfactant: KF-644 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.) 13.4 parts by weight

[0054] (3) (c) Viscosity reducer: 17.8 parts by weight of propylene glycol

[0055] (4)(d) Defoamer: Rhodorsil Antifoam 432 (trade name) 0.1 parts by weight

[0056] (5) (d) Antifoaming agent: Anti-mousse (trade name, manufactured by BELCHIM CROP PROTECTION) 2.7 parts by weight

[0057] (6) (e) pH regulator: 0.1M phosphate buffer (Na 2 HPO 4 -NaH 2 PO 4 )

[0058] 43.5 parts by weight

[0059] (7) (f) Dispersant: sodium alkylnaphthalene sulfonate-formaldehyde condensate (Supragil MNS / 25 (trade name)) 3.6 parts by weight

[0060] The aforementioned components (1), (3), (4), (6) and (7) were mixed, then wet pulverized until the average particle diameter of Cyazofamida reached 0.7 μm, and then the components (2) and ...

Embodiment 3

[0062] (1) (a) active ingredient: Cyazofamida (purity: 93.3%) 17.3 parts by weight

[0063] (2)(b) Organosilicone-based surfactant: 16.4 parts by weight of KF-644 (trade name)

[0064] (3) (c) viscosity reducer: 16.4 parts by weight of propylene glycol

[0065] (4)(d) Defoamer: Rhodorsil Antifoam 432 (trade name) 0.1 parts by weight

[0066] (5) (d) defoamer: Anti-mousse (trade name) 2.5 parts by weight

[0067] (6) (e) pH regulator: 0.1M phosphate buffer (Na 2 HPO 4 -NaH 2 PO 4 )

[0068] 44.0 parts by weight

[0069] (7) (f) Dispersant: sodium alkylnaphthalene sulfonate-formaldehyde condensate (Supragil MNS / 25 (trade name)) 3.3 parts by weight

[0070] The aforementioned components (1), (3), (4), (6) and (7) were mixed, then wet pulverized until the average particle diameter of Cyazofamida reached 0.7 μm, and then the components (2) and ( 5) Added thereto, followed by stirring to obtain an aqueous suspension composition. ...

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Abstract

When an organosilicone surface active agent is added to a pesticidal aqueous suspension composition containing an active ingredient compound of a sparingly water-soluble pesticide for the purpose of attaining activity enhancement and formulation, the following problems arise: such that (1) the viscosity of the composition increases; (2) a large amount of foams due to the organosilicone surface active agent tends to generate at the time of preparation of a spray solution; and the like. Thus, measuring the composition and preparation of a spray solution were difficult. The present invention provides a pesticidal aqueous suspension composition including (a) an active ingredient compound of a sparingly water-soluble pesticide, (b) an organosilicone surface active agent, (c) a viscosity-reducing agent, (d) an antifoaming agent, (e) a pH adjustor and (f) a dispersant, which is suppressed in increasing in the viscosity, is easy to measure, hardly generates foams at the time of dilution with water and is easy to prepare a spray solution.

Description

technical field [0001] The present invention relates to techniques for producing pesticides, and more particularly, the present invention relates to pesticide aqueous suspension compositions containing poorly water-soluble pesticides as active ingredient compounds. Background technique [0002] Patent Document 1 discloses a composition for controlling pests with enhanced efficacy, comprising cyazofamid as an active ingredient (a) and a silicone-based surfactant as an activity-enhancing ingredient (c ) of imidazole compounds. In addition, it discloses that the composition can be blended with various auxiliary agents such as defoamers, stabilizers, dispersants and thickeners, and then it can be made into formulations of various shapes. Furthermore, it discloses that the aqueous suspension formulation of the composition can be applied to pests as well as its aqueous dispersion. However, Patent Document 1 does not disclose the use of a viscosity reducer as various auxiliary ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01P3/00A01N43/40A01N43/50A01N43/653A01N25/04A01N25/30
CPCA01N25/04A01N25/30A01N43/40A01N43/50A01N43/653
Inventor 石原由章新铜猛
Owner ISHIHARA SANGYO KAISHA LTD
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