Reifen

Details

Veröffentlichungs-Nr.

EP4714670

Anmeldetag

4. September 2025

Veröffentlichung

25. März 2026

Rechtsraum

EP

IPC

B60C1/00, C08L9/06(SUMITOMO RUBBER IND et al.)

Abstract

Provided is a tire with excellent fuel economy during driving in urban areas. The tire includes a tread, the tread including a tire rubber composition, the tire rubber composition containing a rubber component including a carboxylic acid-modified diene-based rubber, a silica-containing filler, and an ionic bonding coupling agent, the tread including a first land portion closest to a tire equator among land portions present in an area on a vehicle outboard side from the equator and a second land portion disposed outwardly of the first land portion, the tire satisfying the following conditions (1) to (3):(1) a polymer content (PC), an acetone extractable content (AE), a carbon black content (BC), and an ash content (Ash) of the rubber composition satisfy (PC + AE)/(BC + Ash) > 1,(2) a width W1 of the first land portion and a width W2 of the second land portion satisfy W1/W2 > 0.3, and, W1−W2×0.3×PC+AE−BC−Ash>100.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete