PMI syrup phases and their use for stabilizing insoluble additives

US7247694B2 · kind B2 · utility

Assignee

• Röhm GmbH & Co. KG · DE

Inventors

• Peter Stein · Pfungstadt, DE
• Werner Geyer · Heilbad Heiligenstadt, DE
• Thomas Barthel · Detroit Lakes, US
• Franz Breitwieser · Griesheim, DE

Key dates

• Filing date: Mar 5, 2002
• Grant date: Jul 24, 2007
• Expiry date: Jun 29, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2333/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

By using a high molecular weight syrup phase comprising PMMA or PMMI, it is possible to distribute fillers in the polymerization batch so that the distribution of the fillers remains homogeneous during the polymerization. A homogeneous foam results.