Kautschukzusammensetzung für Reifenaussenschicht und Luftreifen

Details

Veröffentlichungs-Nr.

EP3492520

Aktenzeichen

EP18205869

Anmeldetag

13. November 2018

Veröffentlichung

13. Mai 2020

Erteilung

13. Mai 2020

Rechtsraum

EP

IPC

C08K5/00C08L9/00C08K5/18B60C1/00C08L21/00

Abstract

Provided are a rubber composition, for a tire outer layer, that can improve low fuel consumption performance and ozone resistance in a balanced manner, and a pneumatic tire using the rubber composition. The rubber composition for the tire outer layer contains: a rubber component containing a butadiene rubber; a phenylenediamine antioxidant; and a surfactant having an HLB value of 5 to 12. The butadiene rubber contains a nitrogen atom and/or has a cis content of not greater than 60% by mass. An amount of the butadiene rubber in 100% by mass of the rubber component is 3 to 50% by mass. An amount of the phenylenediamine antioxidant is 1 to 10 parts by mass, an amount of the surfactant is 0.1 to 6 parts by mass, and an amount of carbon black is less than 25 parts by mass, per 100 parts by mass of the rubber component.

Anmelder

Firmen

Sumitomo Rubber Industries, Ltd.
Sumitomo Rubber Industries Ltd.

Land

🇯🇵 Japan

Fachgebiete