PROCESS OF SURFACE MODIFICATION OF RUBBERS Russian patent published in 2007 - IPC C08J7/12 C08L21/00 

FIELD: rubber industry.

SUBSTANCE: invention relates to processes used for surface modification of rubbers based on carbon-backbone rubber precursors. Process consists in treating rubbers with solution of reactive substance in organic solvent followed by treatment for 5-7 h under vulcanization temperature conditions with subsequent drying to remove solvent and heat treatment at vulcanization temperature for 40-60 min. Above-mentioned reactive substance is composed of, wt parts per 100 wt parts solvent: 2-mercaptobenzothiazole 4-5, sulfur 1-2, ultrafine powders of solid lubricants 8-10, phenol-formaldehyde resin 8-10, urotropin 0.5-1.0, and chloroparaffin (more than 70% Cl) 40-50.

EFFECT: increased fireproofness of rubber products at the same wear resistance and resistance to aggressive media.

2 tbl, 2 ex