POLYCONDENSATION PRODUCT BASED ON AROMATIC COMPOUNDS, METHOD OF ITS PRODUCTION AND ITS APPLICATION Russian patent published in 2017 - IPC C08G8/28 C04B24/30 C04B24/32 C04B103/52 

FIELD: chemistry.

SUBSTANCE: in the present invention, a polycondensation product is described, containing as monomeric components: A) at least, one aryl polyoxyalkylene ether of formula (I) , wherein Ar is an aryl group with 6 to 10 carbon atoms in the ring system, R₁ and R₂ each independently of one another are selected from H, methyl and ethyl, with, at least, one of the groups R₁ and R₂=H, m is an integer from 1 to 300, and R₃ is selected from the group consisting of H and phosphate, as well as mixtures thereof; B) at least, one aromatic compound of formula (II), . Moreover, R₄ and_R5 are each independently selected from H, COOH, and aryl with 6 to 10 carbon atoms in the ring system, as well as their alkali metal, alkaline earth metal, and ammonium salts, and R₆ and R₇ are each independently selected from OH and COOH, as well as their alkali metal, alkaline earth metal, and ammonium salts; B) at least, one aldehyde; and D) at least, one other aromatic compound selected from the group consisting of 2-phenoxyethanol, 2-phenoxyethyl phosphate and -phosphonate, 2-(2-phenoxyethoxy)ethanol, 2-(2-phenoxyethoxy) ethyl phosphate and -phosphonate, 2-[4-(2-hydroxyethoxy)phenoxy]ethyl phosphate and -phosphonate, 2-[4-(2-phosphonothoxyethoxy) phenoxy] ethyl phosphate and phosphonate, as well as mixtures thereof. A method of producing the above polycondensation product is also described, in which components A), B), B) and D) are subjected to polycondensation in an aqueous solution at a temperature of 20 to 140°C and a pressure of 1 to 10 bar. The application of the above polycondensation product is also described as a dispersant for aqueous suspensions of inorganic binders selected from the group consisting of hydraulic binders, latent hydraulic binders, pozzolan binders activated with alkali and/or alkali-activated aluminosilicate binders, as well as their mixtures. The application of the above polycondensation product as a milling intensifier for inorganic binders is described as being selected from the group consisting of hydraulic binders, latent hydraulic binders, and pozzolanic binders according to the above definition and/or alkali-activated aluminosilicate binders as well as mixtures thereof.

EFFECT: increasing the yield.

24 cl, 2 dwg, 19 tbl, 45 ex