Patent ID: 8100157

Claim:
A pneumatic tire having a tread or a sidewall formed from a rubber composition for a tire comprising: a rubber component containing a modified natural rubber; and an alkyd resin as a tackifier obtained by blending a polyalcohol, a polybasic acid, and a modifier, wherein said polyalcohol is at least trivalent alcohol, wherein at least 50% by weight of the rubber component is the modified natural rubber, wherein an acid value of the alkyd resin is 10 to 60 mg KOH/g, wherein a hydroxyl group value of the alkyd resin is 50 to 100 mg KOH/g, wherein a softening point of the alkyd resin is −40 to 30° C., and wherein a number average molecular weight of the alkyd resin is 250 to 5,000 and a weight average molecular weight of the alkyd resin is 450 to 10,000.