Manufacture of styrene suspension polymers

US4241191A · kind A · utility

Assignee

• BASF SE

Inventors

• Hans G. Keppler
• Erhard Stahnecker · Heidelberg, DE
• Rolf Moeller · Ludwigshafen, DE

Key dates

• Filing date: Nov 24, 1978
• Grant date: Dec 23, 1980
• Expiry date: Nov 24, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/91
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Styrene polymers are prepared by suspension polymerization using, as suspension stabilizers, mixtures of PA1 (A) a sparingly soluble inorganic metal compound and PA1 (B) a fine polymer dispersion. The styrene polymers may be used, together with blowing agents, for the manufacture of foams.