FIELD: polymer production. SUBSTANCE: composition contains at least one naphthalenesulfonate of general formula , in which X and X' represent OH or NH2, Y represents SO-
3
M+ wherein M is alkali metal; x = 0.1; x' = 0.1 and x+x' = 1; y = 0.1; y' = 0.1 and y+y' = 1; and at least one ethylenically unsaturated monomer. The two monomers form at least one water-insoluble film-forming polymer. Invention also covers preparation of composition and latex. EFFECT: facilitated storage of polymer precursors. 18 cl, 6 tbl, 13 ex