Process for preparation of dialkylphosphinic salts

US7635785B2 · kind B2 · utility

Assignee

• Clariant Deutschland GmbH · DE

Inventors

• Harald Bauer · Ehningen, DE
• Werner Krause · Plantsville, US
• Martin Sicken · Cologne, DE
• Norbert Weferling · Hürth, DE

Key dates

• Filing date: Dec 17, 2004
• Grant date: Dec 22, 2009
• Expiry date: Jan 4, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5313
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparation of salts of dialkylphosphinic acids, which comprises The invention also relates to the use of the metal dialkylphosphinic salts obtained by the inventive process, in particular for preparation of flame retardants.