Abstract
The invention is directed to a bitumen composition, to a paving, to a roofing, to a method for preparing a bitumen composition, to a method for increasing the stiffness of a bitumen composition, to a method of adjusting the physical properties of a bitumen composition, and to the use of a bitumen composition. The bitumen composition of the invention comprises a lignin compound or derivative thereof, wherein 10 wt.% or more by weight of said lignin compound or derivative thereof is molecularly dissolved in said bitumen composition.
| Original language | English |
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| Patent number | WO2015137813 |
| Priority date | 13/03/14 |
| Publication status | Published - 17 Sep 2015 |