| abstract |
Provided is a method for reducing odors including the steps of admixing active agents and a diluting agent to liquid bitumen or to liquid crumb rubber modified bitumen. The active agents comprise 20 to 60 wt.-% of an aldehyde selected from alpha-hexyl cinnamaldehyde, 2-(4-tert.-butylbenzyl) propionaldehyde, 2-benzylidenheptanal, or mixtures thereof, 10 to 40 wt.-% of one or more alcohols having boiling point of at least 150° C., and 0.3 to 1 wt.-% compound selected from a compound comprising 10 carbon atoms and an hydroxyl functional group, an ester of a compound comprising 10 carbon atoms and an hydroxyl functional group, or mixtures thereof, calculated on the total weight of active agents. The bitumen and/or crumb rubber modified bitumen obtained according to the method, and the use thereof are also provided. |