The present invention relates to a branched conjugated diene copolymer which is useful for preparing a rubber composition, having high uniformity of a temperature dependence curve of a viscoelasticity tan´, for a tire, a rubber composition comprising the copolymer, and a pneumatic tire produced using the rubber composition for a tire. The branched conjugated diene copolymer is composed of monomer components comprising a branched conjugated diene compound represented by a general formula (1): wherein R 1 represents an aliphatic hydrocarbon group having 6 to 11 carbon atoms, and an aromatic vinyl compound represented by a general formula (2): wherein R 2 represents an aromatic hydrocarbon group having 6 to 10 carbon atoms, and R 5 represents a hydrogen atom or the like, and a copolymerization ratio (m) of the aromatic vinyl compound (2) is 45% by mass or more.
BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE
VERZWEIGTES KONJUGIERTES DIENCOPOLYMER, KAUTSCHUKZUSAMMENSETZUNG UND LUFTREIFEN
COPOLYMÈRE DE DIÈNE CONJUGUÉ RAMIFIÉ, COMPOSITION DE CAOUTCHOUC ET PNEUMATIQUE
2016-11-09
Patent
Electronic Resource
English
BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE
European Patent Office | 2017
|BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE
European Patent Office | 2017
|Branched conjugated diene copolymer, rubber composition and pneumatic tire
European Patent Office | 2016
|BRANCHED CONJUGATED DIENE COPOLYMER, RUBBER COMPOSITION AND PNEUMATIC TIRE
European Patent Office | 2016
|Branched conjugated diene copolymer, rubber composition and pneumatic tire
European Patent Office | 2016
|