Solid formulations

US6030924A · kind A · utility

Assignee

• American Cyanamid Company · US

Inventors

• Winfried Mayer · Bubenheim, DE
• Christian Wassmer · Eschborn, DE
• Sandra Doerr · Bad Kreuznach, DE

Key dates

• Filing date: May 1, 1998
• Grant date: Feb 29, 2000
• Expiry date: May 1, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/40
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The novel solid formulations obtained by low pressure extrusion of a mixture comprising PA1 at least one active ingredient; and PA1 at least one defoaming agent and/or foam breaking agent from the PA1 group consisting of perfluoroalkylphosphinic acids and/or PA1 perfluoroalkylphosphonic acids and/or their salts, show foam breaking activities even after extrusion, drying and storage at elevated temperatures and are thus very suitable for preparing tank mixtures for use in crop protection.