Endosulfan microcapsule dispersion

US6294570A · kind A · utility

Assignee

• Aventis CropScience GmbH · DE

Inventors

• Hans-Peter Krause · Hofheim, DE
• Thomas Maier · Stockach, DE
• Jan Nicolaas Bremmer · Kriftel, DE

Key dates

• Filing date: Mar 9, 1999
• Grant date: Sep 25, 2001
• Expiry date: Mar 9, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/24
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Aqueous endosulfan microcapsule dispersions in which the dispersed microcapsules comprise endosulfan, an organic solvent or solvent mixture and a capsule-forming material based on isocyanate prepolymers and the aqueous phase which represents the dispersion medium comprises surfactants, a water-soluble inorganic salt with or without other formulation aids, which include a relatively small amount of capsule-forming material, and a process for their preparation.