Preparing expandable styrene polymers

US8455559B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Wolfgang Ferstl · Ludwigshafen, DE
• Jun Gao · Mountain View, US
• Klaus Hahn · Lampertheim, DE
• Pascal Hesse · Mannheim, DE
• Jan Holoch · Leimen, DE
• Klaus-Dieter Hungenberg · Birkenau, DE
• Wolfram Husemann · Neustadt, DE
• Renata Jovanovic · Ludwigshafen, DE
• Wolfgang Kasten · Ludwigshafen, DE
• Olaf Kriha · Neustadt, DE
• Eckhard Neufeld · Ludwigshafen am Rhein, DE
• Michel Pepers · Velden, NL
• Birgit Reinhard · Schifferstadt, DE
• Bernhard Schmied · Bischofswerda, DE
• Rudolf Süttinger · Heidelberg, DE
• Ping Zhang · Hudson, US

Key dates

• Filing date: Mar 11, 2011
• Grant date: Jun 4, 2013
• Expiry date: Dec 9, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2325/06
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention provides a process for preparing expandable styrene polymers which comprises the steps of: