Kautschukzusammensetzung und Luftreifen

Details

Veröffentlichungs-Nr.

EP3385320

Aktenzeichen

EP18163554

Anmeldetag

23. März 2018

Veröffentlichung

20. November 2019

Erteilung

20. November 2019

Rechtsraum

EP

IPC

C08L9/06B60C1/00C08F236/10

Abstract

The present invention provides a rubber composition excellent in grip performance, durability of grip performance, and abrasion resistance. Also provided is a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition exhibiting a temperature dependence curve of tan δ with a half-width defined by Equation (1) of 45 or less as measured at a strain of 0.1% and a frequency of 10 Hz, the rubber composition having a temperature dependence of hardness defined by Equation (2) of 4.3 or less, the temperature dependence curve having a peak temperature of 10°C or lower, half − width = temperature at half − peak height on high temperature side − temperature at half − peak height on low temperature side , <img class="EMIRef" id="531607886-ia01" /> temperature dependence of hardness = hardness index at 0 °C / hardness index at 100 ° . <img class="EMIRef" id="531607886-ia02" />

Anmelder

Firma

Sumitomo Rubber Industries, Ltd.

Land

🇯🇵 Japan

Fachgebiete