The present invention provides a polybutadiene rubber that is improved in terms of abrasion resistance and low loss property while maintaining processability. The polybutadiene rubber according to thepresent invention comprises: a polybutadiene (A) satisfying the conditions in which the ratio (Tcp/ML) of the 5 wt% toluene solution viscosity to the Mooney viscosity is 2.5 or more, and the weight average molecular weight is 60.0*104 or more; and a polybutadiene (B) satisfying the conditions in which the ratio (Tcp/ML) of the 5 wt% toluene solution viscosity to the Mooney viscosity is 3.5 or less, and the weight average molecular weight is 56.0*104 or less, wherein the polybutadiene (A)/the polybutadiene (B) is 10/90-80/20.

    本发明提供一种在保持加工性的同时、耐磨耗性和低损耗性得到改善的聚丁二烯橡胶。本发明的聚丁二烯橡胶包含聚丁二烯(A)和聚丁二烯(B),上述聚丁二烯(A)满足5重量%甲苯溶液粘度与门尼粘度之比(Tcp/ML)为2.5以上和重均分子量为60.0×10以上的条件,上述聚丁二烯(B)满足5重量%甲苯溶液粘度与门尼粘度之比(Tcp/ML)为3.5以下和重均分子量为56.0×10以下的条件,上述聚丁二烯(A)/上述聚丁二烯(B)为10/90~80/20。


    Access

    Download


    Export, share and cite



    Title :

    POLYBUTADIENE RUBBER


    Additional title:

    聚丁二烯橡胶


    Contributors:

    Publication date :

    2020-04-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen



    POLYBUTADIENE RUBBER

    KANOU YUUTO / AMBE MITSUHARU / OKABE YASUYOSHI et al. | European Patent Office | 2019

    Free access

    POLYBUTADIENE RUBBER

    LEE TAE CHUL / YOO SUK JOON / JEON HEE JUNG et al. | European Patent Office | 2015

    Free access

    POLYBUTADIENE RUBBER COMPOSITION

    LEE TAE CHUL / YOO SUK JOON / JEON HEE JUNG et al. | European Patent Office | 2015

    Free access

    POLYBUTADIENE AND RUBBER COMPOSITION

    SHIBA KOJI / YAMADA YUTA / FUKAZAWA SUGURU et al. | European Patent Office | 2016

    Free access