Heptaphosphorus-derived compounds as flame retardants

US10414985B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Roland Helmut Krämer · Mannheim, DE
• Peter Deglmann · Ludwigshafen, DE
• Alexander König · Bruchsal, DE
• Rebekka von Benten · Ludwigshafen, DE
• Andrea Eisenhardt · Vechta, DE
• Sindhu MENON · Osnabrück, DE
• Frank Reuter · Ludwigshafen, DE
• Hansjörg Grützmacher · Dielsdorf, CH
• Aaron M. Tondreau · Zürich, CH

Key dates

• Filing date: Mar 24, 2015
• Grant date: Sep 17, 2019
• Expiry date: Jun 12, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K21/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to flame retardant compositions comprising heptaphosphorus-derived compounds and to novel heptaphosphorus-derived compounds.These heptaphosphorus-derived compounds are especially useful for the manufacture of flame retardant compositions based on thermoplastic polymers, especially polyolefin homo- and copolymers, polycondensates, such as polyamides, or polyesters and duroplastic polymers, such as the ones based on polyepoxides.