Novel silica particulates of the technical field has a low water uptake, their process of preparation and their application to the reinforcement of the silicone elastomers

摘要

The process for the preparation of these silicas is characterised in that a first precipitated silica is subjected to a heat treatment at a temperature of at least 700 DEG C for a period of at least one minute. The silicas obtained are particularly suited for use as reinforcing fillers in silicones.