Wettable or water-soluble granular agrochemical composition

a granular agrochemical and agrochemical technology, applied in the field of wettable or water-soluble granular agrochemical compositions, can solve the problems of not disintegrating well in water failing to give stable dispersion, etc., and achieves the effect of improving disintegrability and dispersibility in water

Inactive Publication Date: 2001-08-16
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

0007] The inventors of the present invention have made much research and discovered surprisingly that, in a wettable or soluble granular agrochemical formulation containing a guanidine derivative such as said compound (II), incorporation of an alkenylsulfonate and a carrier such as lactose, ammonium sulfate, sodium hydrogen carbonate or diatomaceous earth as a carrier results in remarkable improvements in disintegrability and dispersibility in water. The inventors have made further research on the basis of the above findings and have completed the present invention.

Problems solved by technology

However, manufacture of such granular preparations according to the conventional production recipes for wettable powders causes various troubles such as poor disintegrability in water, thus failing to give a stable dispersion.
The above-mentioned compound (II) is poorly soluble in water with a solubility of not more than 0.0003 g / ml in water at 20.degree. C. and the conventional wettable powders have a drawback that they do not disintegrate well in water, thus failing to give a stable dispersion.

Method used

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  • Wettable or water-soluble granular agrochemical composition
  • Wettable or water-soluble granular agrochemical composition
  • Wettable or water-soluble granular agrochemical composition

Examples

Experimental program
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Effect test

example 1

[0103]

1 Compound (IIa) 16 parts Alkenylsulfonate (Sorpol 5115) 5 parts Cyanine Green G 0.15 part Lactose to make 100 parts

[0104] The above ingredient materials were thoroughly mixed in a mortar and kneaded with 5 parts of tap water. This kneaded mass was granulated with an extrusion granulating machine (Kikusui Seisakusho, LTD., RG-5M) using a 0.8 mm (dia.) sieve to provide cylindrical granules. Those granules were dried at 60.degree. C. for 1 hour to provide a water-soluble granular agrochemical composition containing 16% of compound (IIa).

example 2

[0105]

2 Compound (IIa) 50 parts Alkenylsulfonate (Sorpol 5115) 10 parts Radiolite #200 to make 100 parts

[0106] The above ingredient materials were thoroughly mixed in a mortar and kneaded with 25 parts of tap water. The kneaded mass was then treated in the same manner as in Example 1 to provide a wettable granular agrochemical composition containing 50% of compound (IIa).

example 3

[0107]

3 Compound (IIa) 16 parts Alkenylsulfonate (Sorpol 5115) 3 parts Cyanine Green G 0.15 part Lactose to make 100 parts

[0108] The above ingredient materials were thoroughly mixed in a mortar and kneaded with 5 parts of tap water. The kneaded mass was then treated in the same manner as in Example 1 to provide a water-soluble granular agrochemical composition containing 16% of compound (IIa).

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Abstract

The present invention provides a wettable or water-soluble granular agrochemical composition which comprises a guanidine derivative of the formula: wherein R1 represents a homocyclic or heterocyclic group which may optionally be substituted; n is 0 or 1; R represents hydrogen or a hydrocarbon group which may optionally be substituted; R3 represents a primary, secondary, or tertiary amino group; X represents an electron attractive group; or a salt thereof, an alkenylsulfonate and a carrier. The agrochemical composition has excellent disintegrability and dispersibility in water.

Description

[0001] The present invention relates to a wettable or water-soluble granular agrochemical composition with excellent disintegrability in water and high dispersion stability.[0002] Wettable granular agrochemical formulations are agrochemical granules which can be completely or easily dispersed or dissolved in water and, as such, are superior to earlier wettable powders in terms of ease of handling, ease of weighing, dust prevention, and convenience in application. However, manufacture of such granular preparations according to the conventional production recipes for wettable powders causes various troubles such as poor disintegrability in water, thus failing to give a stable dispersion.[0003] As excellent pesticidal agents, JP-A 157308 / 1991 discloses a large number of guanidine derivatives, typically the compound of the following formula (II), and their compositions. 2[0004] Moreover, certain guanidine derivatives and agrochemical formulations containing them (dusts, wettable powders...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A01N25/14A01N25/08A01N47/44A01N51/00
CPCA01N25/14A01N51/00A01N25/30A01N2300/00
Inventor KOIKE, MASAHIKO
Owner SUMITOMO CHEM CO LTD
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