Luftreifen

Details

Veröffentlichungs-Nr.

EP4186713

Aktenzeichen

EP22205016

Anmeldetag

2. November 2022

Veröffentlichung

26. Februar 2025

Erteilung

26. Februar 2025

Rechtsraum

EP

IPC

B60C1/00B60C11/00B60C11/03B60C15/06C08K3/04

Abstract

A pneumatic tire that specifies the tire mounting direction when mounted on a vehicle and has sufficiently improved grip performance at high-speed turning is provided in which the cap rubber layer 21 on the outermost layer of the tread2 is divided in the tire width direction, the cap rubber layer 21a located on the outside of the vehicle is formed of a rubber composition containing 25% by mass or less of styrene tn the rubber component and having a glass transition temperature of -18°C or higher, and wherein the carbon black content ratio is Cout (mass%). and the ground contact area ratio is Lout in the cap rubber layer located on the outside of the vehicle, and the carbon black content ratio is Cin (mass%) and the ground contact area ratio is Lin in the cap rubber layer located inside the vehicle, the following (Formula I) and (Formula 2) are satisfied Cin<Cout (Formula 1)0 ≤ (Cout * Lout) - (Cin x Lin) (Formula 2).

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete