CLAY COMPATIBLE ADDITIVE FOR CHEMICALS USED IN THE CONSTRUCTION INDUSTRY

摘要

1. A monomer-based condensation product, wherein the monomers include I) at least one monomer having an aldehyde moiety, and II) at least one monomer having a ketone moiety that carries at least one non-aromatic moiety, and wherein the condensation product contains at least one fragment from a number of phosphono, sulfino, sulfo, sulfamido, sulfoxy, sulfoalkyloxy, sulfinoalkyloxy and phosphonooxy groups and / or their salts, which is characterized in that the monomers additionally contain iii) gallic acid. 2. The condensation product according to claim 1, characterized in that the condensation product further comprises at least one aromatic monomer from the series of aminobenzenesulfonic acid, aniline, ammonium benzoic acid, dialkoxybenzenesulfonic acid, dialkoxybenzoic acid, pyridine, pyridine monosulfonic acid, pyridine pyridine acid and pyridinedicarboxylic acid. 3. The condensation product according to Claim 1 or 2, characterized in that the condensation product contains at least one iron-based salt. The condensation product according to claim 3, characterized in that the iron-based salt is iron (II) sulfate and / or iron (III) sulfate. 5. The condensation product in accordance with paragraphs. 1, 2 or 4, which is characterized in that the monomers include 25-74 mol. % monomer I), 25-74 mol. % of monomer II) and 0.01-30 mol. % monomer III) .6. The condensation product in accordance with paragraphs. 1, 2 or 4, which is characterized in that the monomer I) contains at least one aldehyde from the range of paraformaldehyde, formaldehyde, acetaldehyde, butyraldehyde, glyoxal, glutaraldehyde, benzaldehyde, naphthylaldehyde