Pneumatic Tire

摘要

A pneumatic tire comprising: an inner liner layer formed from a thermoplastic resin or a thermoplastic elastomer composition obtained by blending a thermoplastic resin with an elastomer; a coating rubber layer; and a tie rubber layer; the pneumatic tire being configured to effectively prevent separation of the inner liner layer. In a pneumatic tire comprising an inner liner layer formed from a thermoplastic resin or a thermoplastic elastomer composition obtained by blending a thermoplastic resin with an elastomer, a tie rubber layer, and a coating rubber layer, the coating rubber layer and the inner liner layer are disposed in a manner such that the coating rubber layer and the inner liner layer overlap each other, and a rubber composition in at least a region of the coating rubber layer where the coating rubber layer and the inner liner layer overlap has an adhesion to the inner liner layer.

主权项

1. A pneumatic tire comprising: an inner liner layer formed from a thermoplastic resin or a thermoplastic elastomer composition obtained by blending a thermoplastic resin with an elastomer, the inner liner layer being disposed on an inner side of a carcass layer; a tie rubber layer disposed between the inner liner layer and the carcass layer; and a coating rubber layer disposed on a bead portion to protect a base surface of the bead portion;
the coating rubber layer and the inner liner layer being disposed in a manner such that the coating rubber layer and the inner liner layer overlap each other; a rubber composition in at least a region of the coating rubber layer where the coating rubber layer and the inner liner layer overlap contains: a rubber component, a condensation product of a compound represented by Formula (1) below and formaldehyde, a methylene donor, and a vulcanizing agent; a compounded amount of the condensation product being from 0.5 to 20 parts by mass relative to 100 parts by mass of the rubber component; and a proportion of a compounded amount of the methylene donor to the compounded amount of the condensation product being from 0.5 to 10; wherein, R1, R2, R3, R4, and R5 are hydrogen, a hydroxyl group, or an alkyl group having from 1 to 8 carbons.