CROSSLINKING RUBBER COMPOSITION, METHOD FOR PRODUCING CROSSLINKED RUBBER, AND TREAD FOR TIRE

An object of the present invention is to provide a crosslinking rubber composition with which a crosslinking time is less liable to be increased, and with which a crosslinked product excellent in a tensile modulus, tear strength and abrasion resistance can be obtained. The crosslinking rubber composition contains: 100 parts by mass of a rubber polymer (A) having an iodine value of 10 to 250 (g/100 g) and comprising 3% by mass or more of an ethylene structure and less than 10% by mass of a vinyl aromatic monomer block; 0.1 to 5.0 parts by mass of sulfur (B); 0.1 to 5.0 parts by mass of a radical generator (C); and 0.1 to 5.0 parts by mass of a vulcanization accelerator (D).