Method for producing acylphosphine oxide solids

US7776109B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Gerhard Bertlein · Trochtelfingen, DE
• Karl Heinz Schall · Münstermaifeld, DE
• Matthias Maase · Speyer, DE
• Joerg Heilek · Bammental, DE
• Dieter Baumann · Greven, DE
• Hermann Ascherl · Dirmstein, DE

Key dates

• Filing date: Mar 30, 2004
• Grant date: Aug 17, 2010
• Expiry date: Oct 12, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5337
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the preparation of solid acylphosphine oxides by converting an acylphosphine oxide which is in the form of a melt or in dispersed form into the solid state of aggregation with mechanical stress, shearing/internal agitation of the melt.