Flame retardants which contain phosphorus, and flame-retardant thermoplastic molding compositions

US7019056B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Andreas Seidel · Dormagen, DE
• Kathe Baumann · Wuppertal, DE
• Thomas Eckel · Dormagen, DE
• Michael Zobel · Bridgwater, GB
• Jörn Stölting · Recklinghausen, DE
• Dieter Wittmann · Leverkusen, DE

Key dates

• Filing date: Jan 4, 2002
• Grant date: Mar 28, 2006
• Expiry date: Jan 4, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/523
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An oligophosphate of general formula is disclosed. The oligophosphate is suitable as a flame retardant for thermoplastic molding compositions that exhibit a good flame-retardant effect, improved dimensional stability under the effect of heat, a good level of toughness and excellent flowability.