COMPOSITES OF INORGANIC MICROPARTICLES HAVING PHOSPHATED SURFACE AND ALKALI-EARTH CARBONATE NANOPARTICLES Russian patent published in 2013 - IPC C09C3/06 C08K9/08 B82B1/00 

FIELD: chemistry.

SUBSTANCE: present invention relates to composites comprising inorganic micropigments and/or filler in form of surface-phosphated microparticles, whose surface is at least partially coated with finely ground alkali-earth carbonate nanoparticles by means of binders based on copolymers comprising as the monomers one or more dicarboxylic acids and one or more monomers from a group of diamines, triamines, dialkanolamines or trialkanolamines and epichlorohydrin, a method of producing such composites, aqueous suspensions thereof and use thereof in papermaking or in production of paints and plastics as well as the use of the binders for coating of microparticles with nano alkali-earth carbonate.

EFFECT: providing pigment or filler composites and aqueous suspensions thereof, which have good optical properties, good printing properties and have low solvent absorption.

47 cl, 9 tbl, 11 dwg