Expandable polystyrene granulates with a bi- or multi-modal molecular-weight distribution

US7868053B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Klaus Hahn · Lampertheim, DE
• Gerd Ehrmann · Deidesheim, DE
• Joachim Ruch · Monsheim, DE
• Markus Allmendinger · Deggingen, DE
• Bernhard Schmied · Bischofswerda, DE
• Jan Holoch · Leimen, DE
• Franz-Josef Dietzen · Haßloch, DE

Key dates

• Filing date: Dec 10, 2004
• Grant date: Jan 11, 2011
• Expiry date: May 27, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Expandable pelletized styrene polymer materials with at least bi- or multimodal molecular weight distribution, to a process for their preparation, and to use for producing moldable-foam moldings.