PROCESS TO PRESERVE AQUEOUS PREPARATIONS OF MINERAL MATERIALS, PRESERVED AQUEOUS PREPARATIONS OF MINERAL MATERIALS AND USE OF PRESERVATIVE COMPOUNDS IN AQUEOUS PREPARATIONS OF MINERAL MATERIALS

摘要

The present invention refers to a process for preserving an aqueous preparation of mineral material like e.g. calcium carbonate preparations, and to the use of a composition as a preservative in an aqueous preparation of mineral materials.