REDISPERSIBLE POWDER BASED ON CARBOXYLATED BUTADIENE-CONTAINING COPOLYMERS Russian patent published in 2002 - IPC

FIELD: chemistry of polymers. SUBSTANCE: latexes are sprayed with mixtures of auxiliary spraying agents comprising 1-15 wt. % calculated for polymer of alkylated diphenylether disulfonic acid salt, caseinate and/or N-alkylsulfosuccinamide and/or with 1-20 wt. % calculated for polymer of di- or tetrasodium or potassium salt of product of addition of N-alkyl sulfosuccinamates with maleic acid in admixture with polyvinyl alcohol. Amount of polyvinyl alcohol is 4-15 wt. % calculated for polymer. Dispersions are used predominantly in building industry and are alternatives to copolymers based on polyvinyl acetates and polyvinyl acrylates. EFFECT: improved properties of redispersible powder. 6 cl, 18 ex, 5 tbl