PROCESS FOR PREPARING OZONE-RESISTANT RUBBERS BASED ON BUTADIENE-NITRILE RUBBER AND POLYVINYL CHLORIDE

摘要

FIELD: manufacture of industrial rubber products. SUBSTANCE: butadiene-nitrile rubber is mixed with suspension polymerization polyvinyl chloride at 70:30 ratio in the presence of epoxy resin stabilizer in amount of 1-3 wt part per 100 wt parts of mixture of polymeric components in rubber mixer at 170+-3 C for 7-9 min or at 160+-3 C for 14-16 min at rubber mixer revolutions of 60 per minute. EFFECT: claimed process is ecologically clean, use of effective but highly toxic thermostabilizers, such as organic or inorganic heavy metal compounds, is avoided.