isoprene oligomer, polyisoprene, process for producing isoprene and polyisoprene oligomer, rubber and pneumatic composition

摘要

Patent Summary for: "Isoprene oligomer, polyisoprene, process for producing isoprene and polyisoprene oligomer, rubber and pneumatic composition". The present invention aims to provide an isoprene and polyisoprene oligomer whose molecular backbone is modified. The present invention also aims to provide a rubber composition containing the isoprene oligomer and / or polyisoprene, as well as a tire comprising a tire component (e.g., tread or sidewall) formed from of rubber composition. The present invention relates to an isoprene oligomer synthesized from an allyl diphosphate represented by formula (x) below and a compound represented by formula (y) below. In formula (x), n represents an integer from 1 to 10. In formula (y), r represents a different group of methyl.