| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a composition of polymers, used as a component of a dispersing preparation, its obtaining and application. Claimed is the composition for application as the dispersing preparation, containing 5-95 wt % of a copolymer H and 2-60 wt % of a copolymer K, the copolymers H and K each has polyether macromonomer structural elements and acidic monomer structural elements, present in the copolymers H and K in each case in a molar ratio from 1:20 to 1:1, and at least 20 mol. % of all structural elements of the copolymer H and at least 25 mol. % of all the structural elements of the copolymer K are present in each case in the form of the acidic monomer structural elements. Polyether macromonomer structural elements of the copolymer H, which has side chains, contain in each case at least 5 oxygen atoms of ether, with a number of oxygen atoms of ether per the side chain of the polyether macromonomer structural elements of the copolymer H changing in such a way that a respective diagram of distribution of occurrence frequencies, in which the number of oxygen atoms of ether per the side chain of the polyether macromonomer structural element is plotted along the abscissa axis, and combined frequency for the copolymer H is plotted along the ordinate axis, contains at least two maximums. A method of obtaining the said composition, its application and based on it dispersing preparation is also claimed.EFFECT: dispersing preparation based on the claimed composition is economical, makes it possible to obtain effective binding agents, used as a superplasticiser for concrete.92 cl, 2 tbl, 3 ex |
