Copolymerization of olefins
    4.
    发明授权
    Copolymerization of olefins 失效
    烯烃的共聚合

    公开(公告)号:US3562228A

    公开(公告)日:1971-02-09

    申请号:US3562228D

    申请日:1968-03-25

    Applicant: UNIROYAL INC

    CPC classification number: C08F210/00

    Abstract: EPM OR EPDM IS MADE IN IMPROVED YIELD IN INERT HYDROCARBON SOLVENT MEDIUM WITH A FOUR-COMPONENT CATALYST SYSTEM: (A) VANADIUM OXYTRICHLORIDE (B) ALKYLALUMINUM SESQUICHLORIDE (C) 2-NITROPROPANE OR BETA-METHYLANTHRAQUINONE, AND (D) AN ACID-SCAVENGER WHICH IS AN ORGANIC LEWIS BASE CONTAINING A HETERO ATOM (N,O,S,SE OR TE), E.G. DI-N-BUTYLAMINE, ETHYL ACETATE, ACETONE, ETC. COMPONENT (C) SERVES AS AN ACTIVATOR FOR SPENT OR DYING CATALYST AND COMPONENT (D), THE ACID ACCEPTOR, INCREASES OR PROLONGS THE EFFECTIVENESS OF THE ACTIVATOR.

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