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AssigneesThe Yokohama Rubber Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
InventorsTakashi Fukutomi, Takumi Sekiguchi, Issei Nakakita, Mitsuru Naito, Yuichi Kobayashi, Tetsuo Ikegami, Satoshi Makino, Takayuki Toyoshima, Tetsuya Mizone, Naoya Miyawaki
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A sealant rubber composition which forms a spongy tacky sealant layer having moderate viscosity properties; and a pneumatic tire having in the tire main body a tacky sealant layer obtained by heating the rubber composition. The rubber composition comprises 0.2 to 20 parts by weight of a peroxide per 100 parts by weight of polymers comprising 95 to 50 parts by weight of a polymer decomposable with the peroxide and 5 to 50 parts by weight of a polymer crosslinkable with the peroxide.
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A process for producing a pneumatic tire, wherein, when a tacky sealant layer is formed in a tire main body by heating a rubber composition comprising 0.2 to 20 parts by weight of a peroxide per 100 parts by weight of polymers comprising 95 to 50 parts by weight of a polymer decomposable with the peroxide and 5 to 50 parts by weight of a polymer crosslinkable with the peroxide, the rubber composition is heated at the same time as that other members of the tire are vulcanized.
Dependencies are inferred from the claim text.