COMPOSITE PRODUCT BASED ON FIBERS AND FILLERS, AND PROCESS FOR THE MANUFACTURE OF SUCH A NOVEL PRODUCT

摘要

The present invention relates to a novel composite product which is composed of a fibrocrystalline heterogeneous structure consisting of: ~ on the one hand a plurality of fibers of expanded specific surface area and of hydrophilic character, having a substantial quantity of microfibrils on their surface, and ~ on the other hand crystals of precipitated calcium carbonate (PCC), organised essentially in clusters of granules, the majority of which trap the micro-fibrils and are joined directly thereto by mechanical bonding. - Application to the field of construction materials and papermaking.