ADDITIVE TO MINERAL BUILDING MATERIALS, INFLUENCING RHEOLOGY Russian patent published in 2013 - IPC C04B24/26 C04B24/38 C04B103/40 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to rheological additive for replacement of casein in compositions of mineral hardening building materials. Rheological additive contains, at least, two different dispersers and, at least one stabiliser, or, at least, one disperser and, at least, two different stabilisers, where said, at least, one disperser or said, at least, two dispersers are selected from group of ligninsulfonate, polycarboxylate, polycarboxylate ether, melamine formaldehyde sulfonate, alkylphenol glycol ether and/or naphthalene sulfonates, and where said, at least, one stabiliser or said, at least two stabilisers are selected from group of modified or non-modified, totally or partially hydrolysed polyvinyl alcohol, polyvinylacetal, polyvinylpyrrolidone, polyalkylene glycol, polyalkylene oxide, agar-agar, seed grains of carob tree, pectin, poly(meth)acrylate and (meth)acrylate thickeners, poly(meth)acrylamides, polyurethanes, associative thickeners, gelatin and/or soy protein. In addition, described are: method of obtaining additive, application of additive, as well as compositions of mineral hardening building materials, which contain rheological additive. Invention is developed in dependent items of invention formula.

EFFECT: stabilisation of rheological properties of mineral hardening compositions with application of said addition.

13 cl, 5 tbl, 5 ex