BITUMEN MODIFIED WITH POLYMER AND PRODUCTION THEREOF

BITUMEN MODIFIED WITH POLYMER AND PRODUCTION THEREOF

The invention describes polymer-modified, bituminous compositions containing from 0.5 to 20% by weight of polymer constituents, where from 20 to 100% by weight of the polymer additive is polyalkyl (meth)acrylate, which is built up in proportions of from 50 to 99.8% by weight of C6- to C28-alkyl (met...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OTSUTOO HITSUTSURAA, MIHIYAERU MIYURAA
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:The invention describes polymer-modified, bituminous compositions containing from 0.5 to 20% by weight of polymer constituents, where from 20 to 100% by weight of the polymer additive is polyalkyl (meth)acrylate, which is built up in proportions of from 50 to 99.8% by weight of C6- to C28-alkyl (meth)acrylates and in proportions of from 0.2 to 20% by weight of polymerisable carboxylic acids and/or sulphonic acids and in proportions of from 0 to 49.8% by weight of further polymerisable compounds, in particular nitrogen compounds. The addition of reactive metal compounds gives bituminous mixtures having improved rebound resilience, for example of from > 50 to about 90%, with good low-temperature flexibility and high thermal stability.