PROCESS FOR THE PREPARATION OF A TREATED MINERAL FILLER PRODUCT, THE OBTAINED MINERAL FILLER PRODUCT AND ITS USES

摘要

The present invention relates to the domain of mineral filler treatment p rocesses. The process for the preparation of a treated mineral filler produc t comprises the following steps: (a) treating at least one dry mineral fille r with at least one Group II or Group III salt of a C8 to C24 aliphatic mono carboxylic acid to produce an intermediate mineral filler product; followed by (b) treating the intermediate mineral filler product of step (a) with at least one C8 to C24 aliphatic monocarboxylic acid to produce a treated miner al filler product. Applications in particular to prepare treated mineral fil ler products (such as Ca carbonate) to be used in plastic applications such as in polypropylene (PP) - or polyethylene (PE) - based breathable or extrus ion coating film applications.