| abstract |
The invention relates to the use of non-dendrimer, highly functional, hyperbranched polyesters and polycarbonates, which can be obtained by reacting (i) at least one aliphatic, cycloaliphatic, araliphatic, or aromatic dicarboxylic acid (A2) or derivatives thereof, or organic carbonates (A2') with (ii) at least one x-valent aliphatic, cycloaliphatic, araliphatic, or aromatic alcohol (C x), which comprises more than two OH groups, where x is a number greater than 2, preferably 3 to 8, particularly preferred 3 to 6, very particularly preferred 3 to 4, and especially 3, and (iii) at least one fatty acid amide alkoxylate (D) of saturated or unsaturated C2-C30 fatty acid amides having on average 1 to 40 alkylene oxide units, as demulsifiers for cracking crude oil emulsions. |