POWDERED FILLER FOR THERMOPLASTIC ELASTOMERIC MATERIALS BASED ON RUBBER Russian patent published in 2011 - IPC C08L21/00 C08K3/04 C08K3/34 

FIELD: chemistry.

SUBSTANCE: invention relates preparation of rubber filler for thermoplastic elastomeric materials based on rubber and can be used in making various extrusion profiles and moulded flexible parts from tyre rubber mixtures for automotive, cable, light industry and construction. The rubber filler is made from a composition which contains natural mineral schungite and technical carbon and/or amorphous white soot, where the size of the powder particles of the filler range from 100 nm to 20 mcm, and the external specific surface area ranges from 20 to 40 m/g. Components of the composition are in the following ratio in wt %: technical carbon and/or amorphous white soot 5-50, natural mineral schungite 50-95. The amorphous white soot used is of the type aerosol, BS-100, BS - 120, BS - 150 or BS -175. Content of technical carbon in its mixture with the amorphous white soot can be equal to 20-80 wt %. Technical carbon and/or amorphous white soot can be added to the powdered filler during mixture schungite in a bead mill.

EFFECT: invention increases ultimate tensile strength, enables retention of relative elongation of elastomeric materials based on rubber, retention of processing characteristics of the material.

6 cl, 1 tbl