TYRE TREAD COMPRISING A CROSSLINKING SYSTEM BASED ON ORGANIC PEROXIDE

• Main Author: LABRUNIE PHILIPPE
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL

The invention relates to a tyre tread comprising a rubber composition on the basis of between at least 50 and 100 phr of a first diene elastomer, the first diene elastomer being a polybutadiene-basedelastomer modified with a functional group that can interact with silica as a reinforcing filler; optionally between 0 and 50 phr of a second diene elastomer; at least 20 phr of carbon black; less than 40 phr of silica as a reinforcing filler; a coupling agent; a plasticising system comprising a plasticising resin having a glass transition temperature of more than 20 DEG C; and a crosslinking system on the basis of organic peroxide; the total content of the first diene elastomer and the second diene elastomer in the composition is between 80 and 100 phr. 本发明涉及包含橡胶组合物的轮胎胎面，所述橡胶组合物基于在至少50phr和100phr之间的第一二烯弹性体，所述第一二烯弹性体为由能够与作为增强填料的二氧化硅相互作用的官能团改性的基于聚丁二烯的弹性体；任选的在0和50phr之间的第二二烯弹性体；至少20phr的炭黑；小于40phr的作为增强填料的二氧化硅；偶联剂；增塑体系，所述增塑体系包含玻璃化转变温度大于20℃的增塑树脂；以及交联体系，所述交联体系基于有机过氧化物；组合物中第一二烯弹性体和第二二烯弹性体的总含量在80phr和100phr之间。