Coated agrochemical granule

• US 10,531,661 B2
• Filed: 02/14/2017
• Issued: 01/14/2020
• Est. Priority Date: 02/16/2016
• Status: Active Grant

• Current Assignee: Sumitomo Chemical Company Limited
• Original Assignee: Sumitomo Chemical Company Limited
• Inventors: Iida, Takahiro, Yanagisawa, Kazuyuki, Hirao, Ayako
• Primary Examiner(s): Pak, John
• Assistant Examiner(s): Holt, Andriae M
• Application Number:
  US15/432,586
• Publication Number:
  US 20170231222A1
• Time in Patent Office: 1,064 Days
• CPC Class Codes: A01N 25/12 Powders or granules A01N25/26 takes precedence
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 37/02 Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
• CPC Class Codes: A01N 37/34 Nitriles
• CPC Class Codes: A01N 37/38 having at least one oxygen or sulfur atom attached to an aromatic ring system
• CPC Class Codes: A01N 53/00 Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof

Abstract

The present invention provides an agrochemical granule comprising: an oil-non-absorbing carrier; and a layer that coats the oil-non-absorbing carrier, wherein the layer comprises a synthetic pyrethroid compound, an organic solvent whose vapor pressure at 25° C. is equal to or lower than 1.0 Pa, an oil-absorbing carrier, a binding agent, a nonionic surfactant and a dodecylbenzenesulfonate, and having an excellent control efficacy against pest.

Claims

1. An agrochemical granule comprising:

70 to 97% by weight of a silica sand; and

a layer that coats the silica sand, wherein

the layer comprises

0.1 to 10% by weight of a synthetic pyrethroid compound selected from the group consisting of fenvalerate, esfenvalerate, permethrin, deltamethrin, bifenthrin, cypermethrin and fenpropathrin,

0.1 to 20% by weight of an organic solvent wherein the vapor pressure of the organic solvent at 25°

C. is equal to or lower than 1.0 Pa,

1 to 10% by weight of a synthetic silica,

0.1 to 6% by weight of a binding agent,

0.1 to 5% by weight of a nonionic surfactant wherein the HLB value of the nonionic surfactant is 13 to 16, and

0.1 to 5% by weight of dodecylbenzenesulfonate.

2. The agrochemical granule according to claim 1, wherein

a weight ratio of a total of the synthetic pyrethroid compound, the organic solvent whose vapor pressure at 25°

C. is equal to or lower than 1.0 Pa, the nonionic surfactant, and the dodecylbenzenesulfonate to the synthetic silica is within a range of 1;

0.3 to 1;

2.0.

3. The agrochemical granule according to claim 1, wherein

a weight ratio of a total of the synthetic pyrethroid compound, the organic solvent whose vapor pressure at 25°

C. is equal to or lower than 1.0 Pa, the nonionic surfactant, and the dodecylbenzenesulfonate to the synthetic silica is within a range of 1;

0.6 to 1;

1.5.