SILICON-TERMINATED ORGANO-METAL COMPOUNDS AND PROCESSES FOR PREPARING THE SAME

    公开(公告)号:US20210002315A1

    公开(公告)日:2021-01-07

    申请号:US16982520

    申请日:2019-03-18

    Abstract: The present disclosure is directed to a silicon-terminated organo-metal composition comprising a compound of formula (I). Embodiments relate to a process for preparing the silicon-terminated organo-metal composition comprising the compound of formula (I), the process comprising combining starting materials comprising (A) a vinyl-terminated silicon-based compound and (B) a chain shuttling agent, thereby obtaining a product comprising the silicon-terminated organo-metal composition. In further embodiments, the starting materials of the process may further comprise (C) a solvent.

    SILICON-TERMINATED ORGANO-METAL COMPOUNDS AND PROCESSES FOR PREPARING THE SAME

    公开(公告)号:US20210002308A1

    公开(公告)日:2021-01-07

    申请号:US16982516

    申请日:2019-03-18

    Abstract: The present disclosure is directed to a silicon-terminated organo-metal composition comprising a compound of formula (I). Embodiments relate to a process for preparing the silicon-terminated organo-metal composition comprising the compound of formula (I), the process comprising combining starting materials comprising (A) a vinyl-terminated silicon-based compound, (B) a chain shuttling agent, (C) a procatalyst, and (D) an activator, thereby obtaining a product comprising the silicon-terminated organo-metal composition. In further embodiments, the starting materials of the process may further comprise (E) a solvent and/or (F) a scavenger.

    METHOD OF MAKING AN OLEFIN POLYMERIZATION CATALYST ACTIVATOR

    公开(公告)号:US20180201696A1

    公开(公告)日:2018-07-19

    申请号:US15923780

    申请日:2018-03-16

    Abstract: A method for preparing ammonium tetrakis(pentafluorophenyl)borate salt comprising reacting a secondary amine with an aldehyde to form an iminium ion; hydrogenating the iminium ion by reaction with a reducing agent to form a tertiary amine; reacting the tertiary amine with a mineral acid to form an amine salt; and reacting the amine salt with K[B(C6F5)4], Li[B(C6F5)4], or combinations thereof to form an ammonium tetrakis(pentafluorophenyl)borate salt, wherein the secondary amine is derived from a non-animal source and the aldehyde has seven or more carbon atoms; wherein the ammonium tetrakis(pentafluorophenyl)borate salt is characterized by a solubility at 25° C. in hexane, cyclohexane or methylcyclohexane of at least 10 weight percent; and wherein the tertiary amine has a molecular weight of at least 450 g/mole is provided.

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