Use as an agent for rheologie in a pate plastic loaded, of a calcium carbonate; a dry with a copolymer of the (meth) acrylic acid with an alkoxy or hydroxy polyalkylene glycol.

摘要

The present invention resides in the use, as an agent for reducing the viscosity of a thermoplastic or thermosetting resin paste; loaded with a calcium carbonate, calcium carbonate, characterized in that it is obtained by dry grinding of the one hand, and in that it is ground to dry in the presence of a grinding aid agent which is a copolymer of the (meth) acrylic acid with a monomer carrying an alkoxy or hydroxy polyalkylene glycol function of the other hand. The present invention also relates to the thermoplastic and thermosetting loaded thus obtained.