Schwerlastreifen

Details

Veröffentlichungs-Nr.

EP3795378

Aktenzeichen

EP20196041

Anmeldetag

14. September 2020

Veröffentlichung

20. Juli 2022

Erteilung

20. Juli 2022

Rechtsraum

EP

IPC

B60C1/00B60C11/03B60C11/11B60C11/12

Abstract

Heavy duty tire which is good in the balance between its fuel efficiency, wet grip performance, abrasion resistance, and chipping resistance. The heavy duty tire comprises a tread (1) composed of a rubber composition comprising 20 parts by mass or more of a silica having 175 m<2>/g or more of a nitrogen adsorption specific surface area (N<2>SA) and 4.0 parts by mass or more of an adhesive resin based on 100 parts by mass of a rubber component, wherein the rubber composition comprises at least one of an isoprene-based rubber, a styrene butadiene rubber, and a butadiene rubber, and the tread has 3.0% or more of difference between a ratio S1 of a circumferential groove (4, 5) area to a contact area and a ratio S2 of a transverse groove (9, 15, 21) area to the contact area.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete