USE AS A RHEOLOGY AGENT IN A FILLED PLASTIC PASTE OF A DRYGROUND CALCIUM CARBONATE WITH A COPOLYMER OF (METH)ACRYLIC ACID WITH AN ALKOXY OR HYDROXY POLYALKYLENEGLYCOL GROUP

摘要

The invention concerns the use, as an agent for reducing the viscosity of a thermoplastic or thermosetting paste charged with calcium carbonate, of a calcium carbonate characterized in that it is obtained by dry-grinding, and in that it is dry-ground in the presence of a grinding aid agent that is a (meth)acrylic acid copolymer with a monomer carrying an alkoxy or hydroxy polyalkylene glycol function. The invention also concerns the charged thermoplastic and thermosetting pastes thus obtained.