FIELD: chemistry.
SUBSTANCE: invention concerns ethylene-alpha-olefin composition with improved damping properties, torque vibration damper, and device of chain, hose and vibration control unit, containing cured rubber composition. Cured rubber composition includes 100 parts of ethylene-alpha-olefin elastomer and majorly isobutylene or butene polymer with viscosity-average molecular weight of ca. 50000 to 1250000 and nonsaturation under 1 mol %. The polymer is present in amount effective for significant vibration damping property enhancement, with tan δ increase by at least 100%.
EFFECT: enhanced rubber vibration damping property.
9 cl, 4 dwg, 2 tbl, 1 ex
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