Insecticide formulations

US8911758B2 · kind B2 · utility

Assignee

• DOW AGROSCIENCES LLC · US

Inventors

• Dennis G. Wujek · Zionsville, US
• Raymond E. Boucher, JR. · Indianapolis, US
• Martin C. Logan · Indianapolis, US
• Stephen L. Wilson · Zionsville, US
• Mei Li · Newark, US
• Lorenzo AULISA · Carmel, US

Key dates

• Filing date: Feb 10, 2012
• Grant date: Dec 16, 2014
• Expiry date: Feb 10, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N57/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Insecticide formulations having improved chemical and physical stability and related methods are disclosed. The insecticide formulations may include a plurality of microcapsules, each including at least one organophosphate insecticide (e.g., chlorpyrifos-methyl) at least partially surrounded by a polymer shell. The insecticide formulations may be used to control insect populations by singular or periodic applications. The microcapsule polymer shell of the insecticide formulations may be formed by combining a cross-linking amine and a hydrophobic monomer (e.g., an isocyanate) at a molar ratio of amine to isocyanate groups of less than about 1:1.