TREATED FILLERS, COMPOSITIONS CONTAINING SAME, AND ARTICLES PREPARED THEREFROM Russian patent published in 2018 - IPC C09C3/08 C09C1/30 C08K3/36 C08K5/09 C08K9/04 C08F8/42 C08L7/02 

FIELD: technological processes.

SUBSTANCE: invention can be used in production of rubberware. Process for preparing the treated filler comprises treating a slurry that includes untreated filler, has not been previously dried, with a treating composition that includes a treating agent. Treating agent consists of at least one compound, selected from an amino acid and/or a polypeptide. Amino acid is cysteine, cystine, arginine, histidine, tyrosine, methionine and proline. Untreated filler is selected from aluminum silicate, silica gel, colloidal silicon dioxide, precipitated silica and mixtures thereof. Dry the slurry of the treated filler to obtain a treated filler.

EFFECT: invention makes it possible to improve the coexistence of materials with a high specific surface area with a polymer matrix into which they are incorporated, reduce the process viscosity and prevent the phase separation of these materials and the polymer matrix.

30 cl, 5 tbl, 2 ex