公开(公告)号：US20160304708A1

公开(公告)日：2016-10-20

申请号：US15102180

申请日：2014-12-05

Applicant: THE YOKOHAMA RUBBER.,LTD

Inventor： Naoki Kushida

IPC: C08L9/06

CPC classification number: C08L9/06 ,  B60C1/00 ,  B60C1/0016 ,  C08K3/04 ,  C08K2201/006 ,  C08L9/00 ,  C08L45/02 ,  C08L91/00

Abstract: A tire rubber composition that improves dry grip performance to or beyond conventional levels, while retaining grip performance sustainability and wear resistance during high-speed running is provided. A tire rubber composition comprising 40 to 180 parts by weight of carbon black having a nitrogen adsorption specific surface area of 80 to 400 m2/g and 1 to 100 parts by weight of aromatic copolymer blended in 100 parts by weight of diene rubber, the aromatic copolymer being a copolymer of an α-methylstyrene derivative represented by general formula (I) and indene.