| abstract |
A pneumatic tire comprising a skin layer which is formed by curing anpolyurethane resin composition comprising a compound having active hydrogennatoms and an organic polyisocyanate compound, has an oxygen permeationncoefficient at 23°C under a relative humidity of 60% of 2.0 ml·mm/m 2 ·day·MPanor smaller and comprises 20% by weight or more of a skeleton structurenrepresented by formula (1) is provided. Since the tire has the skin layer formednwith the polyurethane resin composition and having an excellent barrier propertynto gases, the weight of the tire can be decreased, durability can be improved andnquiet driving can be achieved while the internal pressure is retained even whennthe gas filling the tire is the air, and the tire is more economical than tires fillednwith nitrogen gas. Unlike other tires using other materials having the barriernproperty to gases to decrease the weight, no adhesives are necessary for disposingnthe skin layer. Thus, the process can be simplified and the cost can be reducednin the production. |