AQUEOUS ELUTRIATIONS OF FINE-PARTICLED FILLING MATERIALS, METHODS FOR THE PRODUCTION THEREOF AND USE THEREOF IN THE PRODUCTION OF PAPER CONTAINING FILLING MATERIALS

摘要

Aqueous slurries of finely divided fillers which are at least partly coated with polymers and which are obtainable by treating aqueous slurries of finely divided fillers with at least one water-soluble amphoteric copolymer whose structures are identified in the specification are used as an additive to the paper stock in the production of filler-containing paper, filler-containing cardboard or filler-containing board by draining of the paper stock.