(METH)ACRYLIC COMB POLYMERS HAVING A HYDROXY POLYALKYLENE GLYCOL FUNCTION, USE THEREOF AS A SHEAR RATE THINNING AGENT IN COATING SLIPS AND SLIPS CONTAINING SAME

摘要

The present invention relates to comb polymers having a (meth) acrylic backbone with side chains of hydroxy polyalkylene glycol type, which are used in the composition of paper coating coatings. They lead to a maintenance of the water retention and the viscosity under low shear gradient, and very substantially reduce the viscosity under high stress, which counterbalances the phenomenon of increasing the blade pressure, and which allows dry high solids and / or high speed coating. The invention also relates to coating diapers thus formulated, and their implementation on the surface of a sheet of paper.