Halogen-free, phosphorus-containing flame-retardant polymer foams

US8691896B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Klaus Hahn · Lampertheim, DE
• Olaf Kriha · Neustadt, DE
• Ingo Bellin · Ludwigshafen am Rhein, DE
• Patrick Spies · Ludwigshafen, DE
• Sabine Fuchs · Mannheim, DE
• Peter Deglmann · Ludwigshafen, DE
• Klemens Massonne · Bad Dürkheim, DE
• Hartmut Denecke · Ludwigshafen, DE
• Christoph Fleckenstein · Ludwigshafen am Rhein, DE
• Geert Janssens · Friedelsheim, DE
• Maximilian Hofmann · Mannheim, DE
• Manfred Döring · Bad Mergentheim, DE
• Ciesielski Michael · Merseburg, DE
• Jochen Wagner · Ruppertsweiler, DE

Key dates

• Filing date: Feb 7, 2011
• Grant date: Apr 8, 2014
• Expiry date: Jun 9, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2325/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed is a polymer foam with density in the range from 5 to 120 kg/m3 composed of a polymer component including at least one styrene polymer and from 0.1 to 5 parts by weight of a flame retardant mixture including at least one phosphorus compound of the formula PR1R2R3. A process for producing the polymer is also disclosed.