METHOD OF PREPARING PRODUCT FROM PROCESSED MINERAL FILLER, PRODUCT OBTAINED FROM MINERAL FILLER AND USE THEREOF Russian patent published in 2012 - IPC C09C3/08 C09C1/02 C09C1/28 C08K9/04 

FIELD: chemistry.

SUBSTANCE: method of preparing a processed product from mineral filler, which contains calcium carbonate, involves step a) for treating at least one dry mineral filler with a salt of group II or group III elements of C8-C24 aliphatic monocarboxylic acid to obtain an intermediate product from mineral filler; b) treating the intermediate product from mineral filler at step (a) with at least one C8-C24 aliphatic monocarboxylic acid to obtain a product from a processed mineral filler. The products obtained from the processed mineral filler are used for mixing and/or extrusion and/or compounding and/or blow moulding with plastic materials and, preferably, with polyolefins or thermoplastic materials such as polyethylene, polypropylene, polyurethanes and polyvinyl chloride.

EFFECT: invention reduces content of volatile substances in mineral filler.

2 dwg, 1 tbl, 11 ex