Reifen

Details

Veröffentlichungs-Nr.

EP4382314

Aktenzeichen

EP23210401

Anmeldetag

16. November 2023

Veröffentlichung

28. Mai 2025

Erteilung

28. Mai 2025

Rechtsraum

EP

IPC

B60C1/00

Abstract

It is an object of the present invention to provide a tire enabling improvement of interfacial peeling resistance of a tread. Provided is a tire comprising a tread part, wherein a tread surface of the tread part comprises a plurality of grooves, wherein the tread part comprises a crown part located in the center in a tire width direction, and a pair of shoulder parts located on outer sides of the crown part in the tire width direction, wherein each of the crown part and the shoulder parts is composed of a rubber composition comprising a rubber component and a filler, wherein a rubber composition constituting the crown part comprises 70 parts by mass or more of silica based on 100 parts by mass of the rubber component, wherein a content of carbon black in a filler contained in a rubber composition constituting the shoulder parts is 50% by mass or more, and wherein a product of S<SH>/S<CR> and G ((S<SH>/S<CR>)×G) is 15.0 or less, where a toluene swelling ratio of the rubber composition constituting the crown part is referred to as S<CR>, in %, a toluene swelling ratio of the rubber composition constituting the shoulder parts is referred to as S<SH>, in %, and a thickness of the tread is referred to as G, in mm.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete