Metal compound containing polymer modified bitumen

US5126383A · kind A · utility

Assignee

• Rohm GmbH Chemische Fabrik · DE

Inventors

• Michael Muller · Zwingenberg, DE
• Otto Hitzler · Langen (Hessen), DE

Key dates

• Filing date: Mar 4, 1991
• Grant date: Jun 30, 1992
• Expiry date: Mar 4, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L95/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymer-modified bituminous compositions containing 0.5 to 20% by weight of polymer components, where 20 to 100% by weight of the polymer added is polyalkyl(meth)acrylate, which in synthesized from 50 to 99.8% by weight from C.sub.6 to C.sub.28 alkyl(meth)acrylates, 0.2 to 20% by weight from polymerizable carboxylic acids and/or sulfonic acids and 0 to 49.8% by weight from one or more other polymerizable, in particular nitrogen-containing compounds. Through the addition of reactive metal compounds, bituminous mixtures with improved elastic recovery, for example ranging from >50% to about 90%, with low temperature flexibility and high thermal stability are obtained.