METHOD FOR PRODUCING FILLER FOR RUBBER MIXTURES FROM COMPOSITION OF ONE-TYPE GRANULAR TECHNICAL CARBONS Russian patent published in 2022 - IPC C08K3/04 C08K9/04 C09C1/60 C08L21/00 

FIELD: rubber production.

SUBSTANCE: invention relates to a method for manufacturing fillers based on a composition of one-type granular technical carbons for rubber mixtures; it can be used in the production of rubber products, for example tires, rubber-technical products, etc. The method for manufacturing fillers provides for mixing of the composition of at least two one-type granular technical carbons with 1-2% by wt. of calcium lignosulfonate powder during 30-60 minutes by a “dry” method. The second option of the method for producing the filler for rubber mixtures consists in mixing of two one-type granular technical carbons with 1-2% by wt. of calcium lignosulfonate powder and 0.25-0.5% by wt. of white soot powder during 30-60 minutes by a “dry” method.

EFFECT: simplification of the method for producing the filler, increase in operational characteristics of finished rubber products, reduction in mixing time and increase in wettability of the filler with rubber in rubber mixing.

6 cl, 1 tbl, 16 ex