| abstract |
The invention relates to a polycondensation product on the basis of aromatics and/or heteroaromatics and aldehydes, wherein said product contains at least one structural unit (I) comprising one polyisobutylene side chain and an aromatic or heteroaromatic, and at least one structural unit (II) comprising an aromatic or heteroaromatic and an ionizable functional group, wherein structural unit (I) is not identical to structural unit (II), and the aldehyde used comprises no acid or ester functions. The invention relates to a method for production and use as an additive for hydraulic binding agents. |