Abstract: A run-flat tire-wheel assembly having, in an inside cavity of the tire/rim, a run-flat support formed by a ring-shaped metal shell and rubber elastic members or a ring-shaped metal shell and rubber elastic members composed of a rubber composition containing 100 parts by weight of a peroxide cross-linkable rubber and 1 to 30 parts by weight of a peroxide cross-linking agent, wherein the contact surfaces of the ring-shaped metal shell with the rubber elastic members are subjected to an electrolytic polymerization with 6-mono- or di-allylamino-1,3,5-triazine-2,4-dithiol or its mono- or di-salt, whereby the bondability between the ring-shaped metal shell and rubber elastic members is improved.

Abstract: A run flat tire wheel assembly having a flat run support formed by a ring-shaped metal shell and rubbery elastic members in a tire rim cavity, said tire wheel assembly improving bondability between the ring-shaped metal shell and rubbery elastic members by making said rubbery elastic member from a rubber composition including 100 parts by weight of a diene-based rubber, 40 to 90 parts by weight of carbon black, 3 to 8 parts by weight of sulfur, 0.1 to 1 part by weight of an organic acid cobalt salt in terms of content of cobalt element, 0.1 to 3 parts by weight of a phenylene-diamine-based antiaging agent, and 1 to 6 parts by weight of a resol-type alkylphenol resin.

Abstract: A run flat tire wheel assembly having a flat run support formed by a ring-shaped metal shell and rubbery elastic members in a tire rim cavity, said tire wheel assembly improving bondability between the ring-shaped metal shell and rubbery elastic members by making said rubbery elastic member from a rubber composition including 100 parts by weight of a diene-based rubber, 40 to 90 parts by weight of carbon black, 3 to 8 parts by weight of sulfur, 0.1 to 1 part by weight of an organic acid cobalt salt in terms of content of cobalt element, 0.1 to 3 parts by weight of a phenylene-diamine-based antiaging agent, and 1 to 6 parts by weight of a resol-type alkylphenol resin.

Abstract: A run-flat tire-wheel assembly having, in an inside cavity of the tire/rim, a run-flat support formed by a ring-shaped metal shell and rubber elastic members or a ring-shaped metal shell and rubber elastic members composed of a rubber composition containing 100 parts by weight of a peroxide cross-linkable rubber and 1 to 30 parts by weight of a peroxide cross-linking agent, wherein the contact surfaces of the ring-shaped metal shell with the rubber elastic members are subjected to an electrolytic polymerization with 6-mono- or di-allylamino-1,3,5-triazine-2,4-dithiol or its mono- or di-salt, whereby the bondability between the ring-shaped metal shell and rubber elastic members is improved.

Abstract: A run-flat tire-wheel assembly having, in an inside cavity of the tire/rim, a run-flat support formed by a ring-shaped metal shell and rubber elastic members wherein the contact surfaces of the ring-shaped metal shell and the rubber elastic members are coated with an organic solvent-based adhesive, whereby the bondability between the ring-shaped metal shell and rubber elastic members is improved.