SUSPENSIONS COMPRISING CALCIUM CARBONATE PARTICLES EXHIBITING A CONTROLLED STATE OF AGGREGATION

摘要

dp D50 q.dp where dp is the mean diameter of the particles (nm), measured by the Lea-Nurse method, D50 is the diameter of the particles (nm) for which 50% of the distribution (measured by the sedimentation technique) is smaller and 50% of the distribution is greater, q is a number between 1.0 and 20.0, and comprising an additive chosen from nonionic compounds comprising more than one carbon atom, the content of which, with respect to the calcium carbonate, is greater than 0.4% by weight.