Methods for producing dried pesticide compositions

US7901701B2 · kind B2 · utility

Assignee

• Lignotech USA, Inc. · US

Inventors

• Thomas S. Winowiski · Mosinee, US
• Stuart E. Lebo, Jr. · Schofield, US
• Scott Davis · Schofield, US
• Stig Are Gundersen · Torp, NO

Key dates

• Filing date: Oct 29, 2007
• Grant date: Mar 8, 2011
• Expiry date: Feb 28, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N25/30
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed are compositions and methods related to powder and granular emulsifiable concentrate pesticide formulations. As disclosed, emulsions from non-aqueous based liquid or solvent soluble pesticide actives may be prepared using a high purity, high molecular weight sulfonated lignin as the emulsion stabilizer. The resulting emulsions may then be dried to obtain a powder or granular emulsion concentrate where the high molecular weight sulfonated lignin acts as a solid matrix for the pesticide active. The powder or granular emulsifiable concentrate formulations thus formed have high loading rates, good storage properties and are easily reconstituted when added to water.