POLYOLEFINS
    2.
    发明公开
    POLYOLEFINS 有权
    聚烯烃

    公开(公告)号:EP1789459A1

    公开(公告)日:2007-05-30

    申请号:EP05782880.8

    申请日:2005-09-13

    IPC分类号: C08F210/18 C08F4/622

    摘要: Process for making copolymer (eg elastomeric copolymer) by copolymerising (1) ethylene with (2) at least one comonomer aliphatic C3-C20 alpha-olefins and (3) at least one C4 to C30 conjugated or non-conjugated dienes. The monomers are contacted with (a) a transition metal catalyst of Formula A, and (b) an activating quantity of a suitable activator, Z is five-membered heterocyclic group having at least one carbon atom, at least one nitrogen atom and at least one other hetero atom selected from nitrogen, sulphur and oxygen, the remaining atoms being nitrogen or carbon; M is a metal from Group 3 to 11 or lanthanide; E1 and E2 are divalent (i) aliphatic hydrocarbon, (ii) alicyclic hydrocarbon, (iii) aromatic hydrocarbon, (iv) alkyl substituted aromatic hydrocarbon (v) heterocyclic groups and (vi) heterosubstituted derivatives of said groups (i) to (v); D1 and D2 are donor atoms or groups; X is an anionic group, L is a neutral donor group; n = m = zero or 1; y and z are independently zero or integers such that the number of X and L groups satisfy the valency and oxidation state of the metal M.