Patent ID: 8076398

Claim:
Bituminous composition comprising at least one bitumen and at least one polycondensate comprising: α) at least two repeating units of formula (A1): wherein X represents oxygen, —C(R 1 (R 2 )—, or —N(R 1 )—, wherein R 1 and R 2 each independently represents hydrogen or a C 1 —C 6 linear or branched alkyl, and z is an integer with values 0 or 1, provided that when z is 0, X does not represent —C(R 1 )(R 2 )—, the repeating units A1 being separated from each other by: α1) different or identical linear or branched, saturated or unsaturated, C 1 —C 100 , hydrocarbon chain(s), optionally containing hydrocarbon ring(s), aromatic ring(s) and/or heterocyclic ring(s), and/or α2) alkylene oxide chain(s), with at least 2 repeating units, and β) at least one associative group B selected from the group consisting of: wherein Z represents oxygen, sulphur or a —NH group,and R represents C 1 —C 10 linear or branched alkyl.