Vann-redispergerbar pulverformet, filmdannende polymerblanding

摘要

The present invention relates to a water-redispersible pulverulent composition obtained by a mixing and then drying an emulsion of at least one water-insoluble film-forming polymer, at least one main surfactant and at least one water-soluble compound, comprising a) an emulsion of at least one water-insoluble film-forming polymer prepared from ethylenically unsaturated monomers, b)at least one main surfactant whose water/surfactant binary phase diagram contains an isotropic phase which is fluid at 25° C. up to a concentration of at least 50% by weight of surfactant, followed by a hexagonal or cubic type rigid liquid crystal phase at higher concentrations which is stable at least up to the drying temperature, and c) at least one water-soluble compound. The invention relates, in addition, to a process for preparing such a composition and to its use.