Evaporation inhibitors

US4932994A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Josef Koester · Goldkronach, DE
• Adolf Asbeck · Goldkronach, DE
• Holger Tesmann · Düsseldorf, DE
• Margarete Gruenert · Kaarst, DE
• Konrad Albrecht · Kelkheim, DE
• Paul Bittner · Kriftel, DE
• Fritz Keim · Hofheim, DE

Key dates

• Filing date: Nov 14, 1985
• Grant date: Jun 12, 1990
• Expiry date: Nov 14, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S47/11
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An evaporation inhibitor, having particular use with spray mixtures of agricultural chemicals applied by the low-volume method, in the form of a paraffin-containing aqueous dispersion or a self-emulsifying solution in an organic solvent, and having the following composition: ______________________________________ from 15 to 40% by weight of paraffin waxes or a wax mixture containing paraffin waxes having a dropping point of from 35 to 80.degree. C., from 4 to 20% by weight of nonionic and/or anionic emulsifiers, from 35 to 81% by weight of water and/or an organic solvent which is one or more of a hydrocarbon, an ester and a ketone, which have boiling points of from 70 to 280.degree. C., and from 0 to 5.5% by weight of other auxiliaries. ______________________________________