ETHYLENE-COPOLYMERS AND CATALYST MIXTURE FOR MAKING ETHYLENE COPOLYMERS

    公开(公告)号:EP3882283A1

    公开(公告)日:2021-09-22

    申请号:EP20163685.9

    申请日:2020-03-17

    Abstract: A copolymer comprising repeating units derived from ethylene, at least one C 3 -C 20 -α-olefin, at least one non-conjugated diene, and at least one dual polymerizable diene, wherein the copolymer has
    (i) an intensity ratio D of ≤ 0.5 and
    (ii) a molecular weight distribution (MWD) ≥ R, wherein R depends on the branching index g'(III) of the copolymer and
    wherein R is -27.7 times g'(III)+29.2, when g'(III) is ≤ 0.90; and R is 4.3 when g'(III) is > 0.90 and up to 0.99.
    Also provided is a catalyst composition for making such copolymers containing at least two different metal complexes, a process for making the catalyst composition, a process for making the copolymer and to articles obtained with the copolymer.

    CATALYST SYSTEM
    68.
    发明公开
    CATALYST SYSTEM 审中-公开

    公开(公告)号:EP3334768A1

    公开(公告)日:2018-06-20

    申请号:EP16750784.7

    申请日:2016-08-08

    Abstract: A catalyst system comprising a supported catalyst containing a) a solid support, which is a solid methylaluminoxane composition wherein: i) the aluminum content is in the range of 36 to 41 wt% and ii) the mole fraction of methyl groups derived from the trimethylaluminum component relative to the total number of moles of methyl groups is 12 mol % or lower and b) a catalyst thereon which is a metal complex of the formula (1) CyLMZp (1 ), wherein M is titanium Z is an anionic ligand, p is number of 1 to 2, preferably 2, Cy is a cyclopentadienyl-type ligand and L is an amidinate ligand of the formula (2) wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom, and Sub1 is a substituent comprising a group 14 atom through which Sub1 is bonded to the imine carbon atom and Sub2 is a substituent comprising a heteroatom of group, through which Sub2 is bonded to the imine carbon atom.

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