Kautschukzusammensetzung für Reifen

Details

Veröffentlichungs-Nr.

EP4786207

Anmeldetag

21. Januar 2026

Veröffentlichung

5. August 2026

Rechtsraum

EP

IPC

B60C1/00, C08L9/00

Abstract

The present invention relates to a cross-linkable rubber composition, a cross-linked rubber composition obtained by cross-linking such a rubber composition, a method of preparing a tyre and a tyre. The cross-linkable rubber composition comprises, per hundred parts by weight of rubber (phr): 100 phr of a blend of a natural rubber (NR), a polybutadiene rubber (BR), and first and second solution polymerized styrene-butadiene rubbers (SSBR), the blend comprising ≥ 10 phr to ≤ 40 phr of NR, ≥ 20 phr to ≤ 80 phr of BR, ≥ 10 phr to ≤ 50 phr of the first SSBR having a glass transition temperature T<g>, determined by differential scanning calorimetry (DSC) according to ISO 22768, in a range of ≥ -30°C to ≤ 0°C, and ≥ 10 phr to ≤ 50 phr of the second SSBR having a glass transition temperature T<g>, determined by differential scanning calorimetry (DSC) according to ISO 22768, in a range of ≥ -120°C to ≤ -40°C, ≥ 60 phr to ≤ 130 phr of a first silica filler having a BET surface area in a range of ≥ 150 m<2>/g to ≤ 200 m<2>/g, determined according to ASTM D1993, and ≥ 50 phr to ≤ 100 phr of a second silica filler having a BET surface area in a range of ≥ 70 m<2>/g to ≤ 100 m<2>/g, determined according to ASTM D1993, and a resin, wherein the rubber composition comprises in a range of ≥ 1 phr to ≤ 40 phr of magnesium hydroxide.

Anmelder

Firma

Apollo Tyres Global R&D B.V.

Land

🇳🇱 Niederlande

Fachgebiete