FIELD: chemistry.
SUBSTANCE: invention relates to application of polymer mixture as disperser, in particular as plasticiser for plaster gypsum compositions, in particular for gypsum plasterboards. Polymer mixture contains at least one polymer Pa and at least one polymer Pb, with content of acid in polymer Pa constituting from 1.5 to 4 acid groups per 1 g of polymer, with content of acid in polymer Pb constituting from 0.5 to 1.4 acid groups per 1 g of polymer.
EFFECT: improvement of workability and fluidity of plaster gypsum compositions.
15 cl, 4 tbl
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