Particles containing agricultural active ingredients

US7070795B1 · kind B1 · utility

Assignee

• Monsanto Company · US

Inventors

• M. Francis Botts · Saint Peters, US
• Frank C. Kohn · Chesterfield, US
• Maria L. Miller · Manchester, US

Key dates

• Filing date: Jun 4, 1999
• Grant date: Jul 4, 2006
• Expiry date: Jun 4, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/653
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

One or more agricultural active ingredients (such as fungicides or insecticides) are entrapped in polymeric matrixes to form particles having a diameter in the range from about 0.2 to about 200 microns. The particles are applied to soil, to seeds, or to plants and release the active ingredient(s) at a rate sufficiently low to avoid phytoxicity but at a rate sufficiently high to provide effective amounts of the active ingredient(s), preferably throughout the growing period of the plant.