| 摘要 |
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. |
