FIELD: rubber industry, more particularly manufacture of vulcanizates having improved tensile strength, tear resistance, good dynamic properties and thermal ageing resistance. SUBSTANCE: butadiene-nitrile natural rubber based rubber mix comprises sulfur, captax, zinc oxide and industrial carbon. It further comprises benzimidazole derivative as modifier of formula given in the specification. EFFECT: improved strength and relative elongation of vulcanizates, greater resistance to tear and dynamic loads and resistance to thermal ageing. 2 tbl
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Authors
Dates
1997-11-20—Published
1994-10-12—Filed