PROCESS FOR MANUFACTURE OF PAPER COATINGS WITH IMPROVED WATER RETENTION AND BROOKFIELD TM VISCOSITY USING A COMB POLYMER WITH AT LEAST ONE GRAFTED POLYALKYLENE OXIDE FUNCTION

摘要

The invention concerns a process to manufacture paper coating containing at least one mineral matter, at least one binder, and water, characterized in that at least one comb polymer obtained by grafting of a least one polyalkylene oxide function on to the polymer chain, where the said chain results from the polymerisation of at least one ethylenic unsaturated monomer, is introduced into the above-mention composition. The paper coating thus obtained have increase water retention and reduced Brookfield viscosity compared to the same coating containing a water-retaining thickening agent of the prior-art.