VULCANIZABLE COMPOSITION COMPRISING QUINONE DIOXIME COMPOUND AND ETHYLENE COPOLYMER AND MOLDED PRODUCT MADE FROM THIS

摘要

PROBLEM TO BE SOLVED: To provide a vulcanizable rubber composition having an excellent weather resistance, heat resistance and ozone resistance. SOLUTION: A vulcanizable rubber composition comprises (A) an ethylene copolymer comprising structural units derived from ethylene, a 3-20Cα-olefin and a triene compound of formula 1 [wherein R1 and R2 are each independently a hydrogen atom, a methyl group or an ethyl group; and R3 and R4 are each independently a methyl group or an ethyl group], wherein (a) the molar ratio of ethylene toα-olefin is from 99/1 to 30/70, (b) the non-conjugate polyene content is from 0.1 to 30 mol%, and (c) the intrinsic viscosity [η] measured at 135 deg.C in decalin is from 0.1 to 10 dl/g, and (B) a quinone dioxime compound. This composition is vulcanized to obtain a rubber molded product.