Microencapsulation of Lambda-Cyhalothrin for crop protection - the Zeon technology

The Zeon technology for microencapsulation of Lambda+cyhalothrin insecticide was developed at Zeneca's Western Research Center. By use of isocyanate interfacial polymerization chemistry and Zeneca's novel protective colloids and emulsifiers system, a simple process was developed for high active ingredient loading microencapsulation. As a result of this technology, toxicity in nearly all categories was reduced compared with the EC formulation. The same technology can be used for other active ingredients to extend residual control, reduce toxicity, reduce phytotoxicity and retard volatility.