A PROCEDURE FOR MANUFACTURING AN AQUEOUS FORMULATION BASED ON A SOLUTION OF ACRYLIC COMB POLYMER AND ACRYLIC THICKENING EMULSION, THE FORMULATION OBTAINED AND ITS USE IN COATING PAPER

摘要

The invention relates to a method for preparing a composition, characteri sed in that it comprises the steps of: a) preparing an aqueous solution of a t least one comb polymer of (meth)acrylic acid having an alkoxy and/or hydro xy polyalkylene glycol function grafted thereon; b) preparing an aqueous emu lsion of at least one acrylic thickener; c) mixing the aqueous solution of s tep a) and the aqueous emulsion of step b) with the optional addition of wat er; and in that it comprises partially neutralising the comb polymer during step a) and/or step c) in order to obtain a mixture having a pH between 5.5 and 6.8, preferably between 5.8 and 6.3. The invention also relates to the p roduct thus obtained and to the use thereof in a paper coating slip as a thi ckening agent for said slip and/or as a water retention agent for said slip and/or as an agent for improving the gloss and/or the optical azuration of t he paper coated with said slip.