Application of polychela-type trigger in preparing biblock rubber of conjugated diolefine and monovinyl arene

Application Number: 00105313
Application Date: 2000.03.31
Publication Number: 1315461
Publication Date: 2001.10.03
Priority Information:
International: C08F4/48;C08F297/04
Applicant(s) Name: Research Inst of Yanshan Petro-Chemical Co, Beijing
Inventor(s) Name: Liu Qing;Xue Hong;Yu Fengnian
Patent Agency Code: 11038
Patent Agent: huang shuhui
Abstract A process for preparing biblock polymerized rubber of conjugated diolefin and monoethylene arene by means of polychelating-type trigger is disclosed, and it features that the said trigger contains organic monolithium, organic bilithium and organic polylithium and the resultant polymer has different ethylene contents for different blocks of monoethylene arene and conjugated diolefin. Its advantages include wide distribution of polymer molecular weight, excellent physical and mechanical performance, low rolling resistance and high resistance of wet skid.