The present disclosure provides a polyisoprene wherein: a vinyl bond content of the polyisoprene is 30 mol % or higher; and a ratio of the weight-average absolute molecular weight (Mw') determined by GPC-MALS with respect to the weight-average molecular weight (Mw) in terms of polystyrene determined by GPC, i.e., Mw'/Mw, is 0850 or less. A rubber composition containing the polyisoprene is excellent in the fuel-saving performance and grip performance on a wet road surface, as compared with a rubber composition containing the conventional polyisoprene.


    Access

    Download


    Export, share and cite



    Title :

    POLYISOPRENE, RUBBER COMPOSITION, AND TIRE


    Additional title:

    POLYISOPREN, KAUTSCHUKZUSAMMENSETZUNG UND REIFEN
    POLYISOPRÈNE, COMPOSITION DE CAOUTCHOUC ET PNEU


    Contributors:

    Publication date :

    2023-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen



    POLYISOPRENE, RUBBER COMPOSITION, AND TIRE

    TAKANO SHIGENAGA / HOTTA AYA / TAMAKI SATORU | European Patent Office | 2020

    Free access

    POLYISOPRENE, RUBBER COMPOSITION, AND TIRE

    TAKANO SHIGENAGA / HOTTA AYA / TAMAKI SATORU | European Patent Office | 2022

    Free access

    Polyisoprene, rubber composition, and tire

    TAKANO SHIGENAGA / HOTTA AYA / TAMAKI SATORU | European Patent Office | 2025

    Free access


    EPOXIDISED POLYISOPRENE RUBBER COMPOSITION

    AURÉLIE JOSEPH / JULIEN CLADIERE | European Patent Office | 2019

    Free access