SURFACE CHEMISTRY MODIFIED LATEX AND RESDISPERSIBLE POWDERS, PRODUCTION AND USE THEREOF

摘要

The invention relates to a surface chemistry modified latex which can be obtained by carrying out radical polymerization in emulsion in the presence of at least one ethylenically unsaturated monomer or at least one polymer having ethylinically unsaturated residual bonds, at least one radical polymerization, at least one single, double or triple block polymer which is soluble or dispersible in water, comprising an active group at the end thereof, capable of forming a radical, and chosen from dithioesters, xanthates, thioether-thiones and dithiocarbamates. The invention also relates to redispersible powders which can be obtained by drying said latexes.