METHOD FOR PRODUCING HYDROPHOBIZED AND REACTIVE INORGANIC AND/OR ORGANIC FILLERS, FILLERS PRODUCED BY THIS METHOD, AS WELL AS MOLDED PART OBTAINED FROM POLYMER BASE CASTING MATERIAL COMPRISING AT LEAST ONE SUCH FILLER Russian patent published in 2023 - IPC C04B20/10 C09C3/10 B29C39/00 

FIELD: hydrophobized and reactive fillers.

SUBSTANCE: method includes the steps: (a) providing a filler with a given surface, (b) mixing the filler with a solution of a hydrophobizing and activating bio-based reactive compound in a mixing unit in an amount of 0.15×10^-2 - 5.0×10^-2 g per 1 m² of filler surface at a speed of 20 - 200 rpm for 12 - 120 minutes, (c) transferring the hydrophobized and activated filler to a storage bag, box or drum or directly to the casting mass. The hydrophobic and activating reactive compound is a vegetable or animal oil-based compound in the form of a (meth)acrylated monomer comprising a fatty acid group of biological origin.

EFFECT: producing fillers that can be used immediately after processing and a reduction in stress in moulded parts produced using these fillers.

21 cl, 2 dwg, 3 tbl, 1 ex