Reifen

Details

Veröffentlichungs-Nr.

EP4008568

Aktenzeichen

EP21211333

Anmeldetag

30. November 2021

Veröffentlichung

29. März 2023

Erteilung

29. März 2023

Rechtsraum

EP

IPC

C08L7/00C08L9/06B60C1/00B60C11/03B60C11/00C08L21/00

Abstract

Provided is a tire comprising a tread formed of a rubber composition comprising a rubber component comprising 40 to 80% by mass of an isoprene-based rubber, wherein the tire satisfies the following conditions (1) to (6): (1) when a tan δ at 30°C (tan δ<30°C>) is A, A≥0.18, (2) when a ratio (EB<80°C>/EB<23°C>) of an elongation at break at 80°C (EB<80°C>) to an elongation at break at 23°C (EB<23°C>) is B, 0.9≤B≤1.4, and (3) when an abrasion resistance index with a tire of Comparative example 1 being 100 as measured by a LAT tester is C, 110≤C≤140, (4) when a ratio (LAND<Sh/>LAND<Cr>) of a land ratio of the entire pair of shoulder parts (LAND<Sh>) to a land ratio of the crown part (LAND<Cr>) is D, 0.80≤D≤2.00, (5) when a maximum groove depth of the circumferential main groove is E (mm), 5≤E≤20, and (6) 25≤(B×C/A) × (D/E)≤200.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete