Kautschukzusammensetzung für Lauffläche und Reifen

Details

Veröffentlichungs-Nr.

EP3533622

Aktenzeichen

EP19157192

Anmeldetag

14. Februar 2019

Veröffentlichung

17. November 2021

Erteilung

17. November 2021

Rechtsraum

EP

IPC

B60C1/00C08L7/00

Abstract

An object of the present invention is to provide a rubber composition for a tire having improved overall performances such as block crack resistance, abrasion resistance and heat build-up characteristic, and a tire having a tire member composed of this rubber composition. The rubber composition for a tire comprises a rubber component comprising 50% by mass or more of an isoprene rubber, 30% by mass or more of a butadiene rubber and 1 to 20% by mass of a styrene-butadiene rubber having a number-average molecular weight of 150,000 or more and a styrene content of 18 to 38% by mass, wherein a value obtained by multiplying a content (% by mass) of the styrene-butadiene rubber by a styrene content (% by mass) of the styrene-butadiene rubber is from 100 to 400.

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete