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13 条记录 (耗时 0.018 秒)

    Process for producing propylene copolymers in gas phase
    1.
    发明授权
    Process for producing propylene copolymers in gas phase 有权

    公开(公告)号：US10364307B2

    公开(公告)日：2019-07-30

    申请号：US15510030

    申请日：2015-09-11

    申请人： BOREALIS AG

    发明人： Luigi Resconi ,  Norbert Hafner ,  Wilfried Töltsch

    IPC分类号： C08L23/16 ,  C08L23/14 ,  C08F210/06 ,  C08F4/6592 ,  C08F2/38 ,  C08F4/659

    摘要： A process for the preparation of a heterophasic copolymer of propylene and ethylene comprising polymerizing propylene and ethylene in the gas phase in the presence of a solid particulate catalyst free from an external carrier comprising: (i) a symmetrical complex of formula (I), wherein M is zirconium or hafnium; each X is a sigma ligand; L is a divalent bridge selected from —R′2C—, —R′2C—CR′2-, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-C20-alkyl, tri(C1-C20-alkyl)silyl, C6-C20-aryl, C7-C20-arylalkyl or C7-C20-alkylaryl; R2 is a C1-C20 hydrocarbyl radical; R5 is a C1-C20 hydrocarbyl radical; R6 is a tertiary C4-C20 hydrocarbyl radical; R7 is a hydrogen atom or a C1-10-hydrocarbyl radical; n is 0 to 3; R1 is a C1-C20 hydrocarbyl radical and optionally two adjacent R1 groups taken together can form a further mono or multicyclic ring condensed to Ph ring optionally substituted by one or two groups R4; and R4 is a C1-C10 alkyl radical and (ii) a cocatalyst, preferably comprising an organometallic compound of a Group 13 metal; wherein the xylene soluble fraction (XS) of the heterophasic copolymer of propylene and ethylene has an intrinsic viscosity of at least 1.5 dl/g and an ethylene content of 10 to 70 wt %.

    Asymmetrical Ligands
    9.
    发明申请
    Asymmetrical Ligands 审中-公开
    不对称配体

    公开(公告)号：US20160024123A1

    公开(公告)日：2016-01-28

    申请号：US14876328

    申请日：2015-10-06

    申请人： BOREALIS AG

    发明人： Norbert Hafner ,  Pascal Castro ,  Pavel Sergeevich Kulyabin ,  Vyatcheslav Izmer ,  Alexander Voskoboynikov ,  Luigi Resconi ,  Dmitry Kononovich ,  Ville Virkkunen ,  Dmitry Uborsky

    IPC分类号： C07F7/08 ,  C08F10/06

    CPC分类号： C07F7/081 ,  C07C13/36 ,  C07C13/38 ,  C07C13/465 ,  C07C41/01 ,  C07F17/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08L23/12 ,  C08L2207/02 ,  C08L2314/06 ,  C08L23/16 ,  C08F2500/03 ,  C08F2500/12 ,  C08F210/16

    摘要： A ligand of formula (I′) wherein L is a divalent bridge selected from —R′2C—, —R′2C—CR′2—, —R′2Si—, —R′2Si—SiR′2—, —R′2Ge—, wherein each R′ is independently a hydrogen atom, C1-20-hydrocarbyl, tri(C1-20-alkyl)silyl, C6-20-aryl, C7-20-arylalkyl or C7-20-alkylaryl; R2 and R2′ are each independently a C1-20 hydrocarbyl radical; R5′ is a C1-20 hydrocarbyl group; R6, R6′, R7 and R7′ are each independently hydrogen or a C1-20 hydrocarbyl group; Ar and Ar′ are independently an aryl or heteroaryl group having up to 20 carbon atoms; each R1 is a C1-20 hydrocarbyl group or two R1 groups on adjacent carbon atoms taken together can form a fused 5 or 6 membered non aromatic ring with the Ar group; and each R4 is a C1-20 hydrocarbyl group; and the dotted lines represent a double bond present in between carbons 1 and 2 or 2 and 3 of the indenyl ring.

    摘要翻译： 式（I'）的配体，其中L是选自-R'2C-，-R'2C-CR'2-，-R'2Si-，-R'2Si-SiR'2，-R 其中每个R'独立地为氢原子，C 1-20烃基，三（C 1-20烷基）甲硅烷基，C 6-20 - 芳基，C 7-20 - 芳基烷基或C 7-20 - 烷基芳基; R2和R2'各自独立地为C1-20烃基; R5'是C1-20烃基; R6，R6'，R7和R7'各自独立地为氢或C1-20烃基; Ar和Ar'独立地为具有至多20个碳原子的芳基或杂芳基; 每个R 1是C 1-20烃基或相邻碳原子上的两个R 1基团可以与Ar基团形成稠合的5或6元非芳族环; 并且每个R 4是C 1-20烃基; 虚线表示存在于茚基环的碳1和2或2和3之间的双键。