rheologie binding agent and modifier

摘要

The present invention concerns copolymers containing carboxyl groups simultaneously with a function of a binding agent and a function of a rheology modifier or viscosity reducer or grinding aid agent for aqueous suspensions of pigments and/or mineral fillers, used to obtain grains of pigments and/or mineral fillers, reconstituted and formed from elementary particles with a specific BET surface ranging from 0.5 mSUP2/SUP/g to 200 mSUP2/SUP/g, grains that can easily be re-dispersed in thermoplastic resins. The invention also concerns the agglomerate minerals obtained and their uses.