Water re-dispersible powders containing polyphenols

摘要

The invention concerns at least a water re-dispersible powder composition and comprising: at least a water insoluble film-forming polymer, said polymer (a) being prepared from at least an ethylenically unsaturated monomer, at least a polyoxyalkylene surfactant (b) in an amount of at least 1.5 wt. % relative to polymer (a); at least a polyphenol (c) derived from the condensation of formaldehyde and phenol compound of formula (I) followed by sulphoalkylation.