Pneumatic tire and method of manufacturing pneumatic tire
AssigneeThe Yokohama Rubber Co., Ltd.
InventorsAtsushi Tanno, Jun Matsuda
Life of this patent
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Abstract
A pneumatic tire is provided with a carcass layer and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer. Additionally, the pneumatic tire is provided with a resin coating applied on a predetermined region of a sidewall portion. Additionally, a minimum value of a wall thickness t of a rubber of the sidewall portion in the region applied with the resin coating is in a range of 0.05 mm≤t≤4.0 mm. Additionally, a thickness of the resin coating is in a range of 20 μm or more and 300 μm or less.
Claims15
A pneumatic tire comprising a carcass layer, and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer, the pneumatic tire comprising
- a resin coating applied on a predetermined region A of a sidewall portion, a minimum value of a wall thickness t of the sidewall rubber in the region A applied with the resin coating being in a range of 0.05 mm≤t≤4.0 mm;
- wherein the resin coating is formed from a stacked plurality of coating layers, and the coating layers includes a lowermost layer formed from a coating composition having an adhesion with respect to the sidewall rubber, an intermediate layer formed from a urethane resin coating composition having a strength, and a top surface layer formed from a silicon resin coating composition having a luster.
A pneumatic tire comprising a carcass layer, and a sidewall rubber disposed on an outer side in a tire width direction of the carcass layer, the pneumatic tire comprising
- a resin coating applied on a predetermined region A of a sidewall portion, a minimum value of a wall thickness t of the sidewall rubber in the region A applied with the resin coating being in a range of 0.05 mm≤t≤4.0 mm, wherein
- the resin coating is formed from a stacked plurality of coating layers, individual layers of the stacked plurality coating layers being formed of different materials, and a dynamic friction coefficient of a surface of the region A coated with the resin coating is 0.5 or less;
- and
- a thickness of the resin coating is in a range of 20 μm or more and 300 μm or less.
Dependencies are inferred from the claim text.