Composites of inorganic microparticles with a phosphated surface and nano alkaline earth carbonate particles

摘要

The present invention relates to composites comprising inorganic micropigments and / or fillers in the form of surface-phosphated microparticles whose surface is prepared by means of binders based on copolymers comprising as monomers one or more dicarboxylic acids and one or more monomers from the group of diamines, Triamines, dialkanolamines or trialkanolamines and epichlorohydrin, at least partially coated with finely divided nano-alkaline earth carbonate, a process for producing such composites, aqueous slurries thereof and their use in papermaking or in the field of color and plastic production and the use of the binder for the coating of the microparticles with nano alkaline earth carbonate.