Patent ID: 8197588

Claim:
An aqueous composition for road construction, comprising: (a) asphalt or bitumen, (b) a monoamide obtained from condensation of mono- and/or dicarboxylic acids and amines, and optionally (c) a non-ionic, cationic and/or amphoteric co-emulsifier, and/or (d) a solvent; wherein the monocarboxylic acids are according to general formula (I), R 1 CO—OH (I) in which R 1 CO stands for a linear or branched acyl radical having 6 to 22 carbon atoms and 0 or 1 to 3 double bonds, and the dicarboxylic acids are according to general formula (II), HOOC—[X]—COOH (II) in which [X] stands for an alk(en)ylene group having 1 to 10 carbon atoms that is optionally hydroxysubstituted.