作者: Naokazu Kobayashi , Masahiro Shibata , Toshihiro Tadaki
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摘要: A process for producing a conjugated diene copolymer rubber which comprises initiating copolymerization reaction in system containing first compound and aromatic vinyl completing the reaction, adding polyfunctional monomer to system, optionally further second compound, conducting modifier react with copolymer. composition having excellent processability, exhibiting sufficient hardness even after vulcanization, possessing reduced rolling resistance can be obtained.