POLYOLEFIN PRODUCTION
    92.
    发明公开
    POLYOLEFIN PRODUCTION 有权
    聚烯烃生产

    公开(公告)号:EP1088010A1

    公开(公告)日:2001-04-04

    申请号:EP99924869.3

    申请日:1999-04-24

    IPC分类号: C08F110/02 C08F4/622

    摘要: Use of a metallocene compound of the general formula: Ind2R''MQ2 as a component of a catalyst system for the production of a polyethylene copolymer substantially in the absence of comonomer, wherein each Ind is the same or different and is indenyl or substituted indenyl; R'' is a bridge which comprises a C1 to C4 alkylene radical, a dialkyl germanium or silicon or siloxane, alkyl phosphine or amine, which bridge is substituted or unsubstituted, M is Group IV metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and the ratio of meso to racemic forms of the metallocene in the catalyst system is at least 1:3.

    摘要翻译: 通式:Ind2R“MQ2的金属茂化合物作为催化剂体系的组分用于基本上不存在共聚单体时制备聚乙烯共聚物,其中每个Ind相同或不同并且是茚基或取代的茚基; R“是包含C1至C4亚烷基,二烷基锗或硅或硅氧烷,烷基膦或胺的桥,其中桥是取代或未取代的,M是IV族金属或钒,每个Q是具有1至 20个碳原子或卤素; 并且催化剂体系中内消旋形式与金属茂的外消旋形式的比例至少为1:3。

    Process for producing stereospecific polymers
    99.
    发明公开
    Process for producing stereospecific polymers 失效
    Verfahren zum herstellen von stereospezifischen Polymeren

    公开(公告)号:EP0857734A1

    公开(公告)日:1998-08-12

    申请号:EP98102353.4

    申请日:1998-02-11

    IPC分类号: C08F4/602 C08F4/02

    摘要: Stereospecific catalysts and processes for the stereotactic polymerization of ethylenically unsaturated monomers, specifically C 3 -C 4 alpha olefins involving a molecular sieve supported metallocene catalyst comprising a stereospecific metallocene catalyst component and a co-catalyst component. The metallocene catalyst component incorporates a metallocene ligand structure having two sterically dissimilar cyclopentadienyl ring structures coordinated with the central transition metal atom. Both the metallocene catalyst component and the co-catalyst component are supported on a molecular sieve having an average effective pore size which is less than the kinetic diameter of at least one of said ring structures. This supported catalyst is contacted in a polymerization reaction zone with an ethylenically unsaturated monomer which contains 3 or more carbon atoms or which is a substituted vinyl compound under polymerization conditions to produce stereospecific polymerization of the monomer. The supported catalyst incorporates a molecular sieve support having an average effective pore size within the range of 5-10 angstroms. The metallocene component can be an unbalanced metallocene having a ligand structure in which stereorigidity is imparted by means of a structural bridge extending between dissimilar cyclopentadienyl groups, for example, a fluorenyl group, a cyclopentadienyl group, of a ligand which exhibits bilateral symmetry. The specific zeolite supports are zeolite Y, zeolite X, mordenite, and zeolite β. Others include various zeolites of the ZSM substitutional series, including ZSM-5, ZSM-11, and ZSM-12.

    摘要翻译: 烯属不饱和单体立体定向聚合的立体定向催化剂和方法,特别是涉及包含立体特异性金属茂催化剂组分和助催化剂组分的分子筛负载金属茂催化剂的C3-C4α烯烃。 茂金属催化剂组分包含具有两个与中心过渡金属原子配位的空间不同的环戊二烯基环结构的茂金属配体结构。 茂金属催化剂组分和助催化剂组分都被负载在平均有效孔径小于所述环结构中的至少一个的动力学直径的分子筛上。 该聚合反应区中的负载型催化剂与含有3个以上碳原子的烯键式不饱和单体接触,或者在聚合条件下与取代的乙烯基化合物接触,生成单体的立体有择聚合。 载体催化剂包含平均有效孔径在5-10埃范围内的分子筛载体。 茂金属组分可以是具有配体结构的不平衡茂金属,其中立体刚性通过在不同的环戊二烯基之间延伸的结构桥,例如具有双侧对称性的配体的芴基,环戊二烯基。 特定的沸石载体是沸石Y,沸石X,丝光沸石和β沸石。 其他还包括ZSM替代系列的各种沸石,包括ZSM-5,ZSM-11和ZSM-12。

    Metallocene mit teilhydrierten pi-Liganden
    100.
    发明公开
    Metallocene mit teilhydrierten pi-Liganden 失效
    茂金属mitilhydrierten pi-Liganden

    公开(公告)号:EP0839824A2

    公开(公告)日:1998-05-06

    申请号:EP97118617.6

    申请日:1997-10-27

    IPC分类号: C07F17/00 C08F10/00

    摘要: Die vorliegende Erfindung betrifft ein Metallocen mit der allgemeinen Formel I,
    zur Herstellung von Polyolefinen, worin bevorzugt M 1 Zr, Hf oder Ti ist, R 1 und R 2 ein Wasserstoffatom, eine C 1 -C 3 -Alkyl-, C 1 -C 3 -Alkoxy-, C 6 -C 8 -Aryl-, C 6 -C 8 -Aryloxy-, C 2 -C 4 -Alkenyl-, C 7 -C 10 -Arylalkyl-, C 7 -C 12 -Alkylaryl-, C 8 -C 12 -Arylalkenylgruppe oder Chlor bedeuten, R 3 ein Chlor, eine C 1 -C 3 -Alkyl-, C 2 -C 4- Alkenyl-, C 6 -C 8 -Arylgruppe, einen NR 16 2 -, SR 16 -, OSiR 16 3 -, SiR 16 3 - oder PR 16 2 -Rest, worin R 16 Chlor, eine C 1 -C 4 -Alkyl- oder C 6 -C 8 -Arylgruppe bedeutet. R 4 ein Wasserstoffatom bedeuten, R 13 -(R 14 M 2 R 15 )-, -(R 14 CR 15 )-(R 14 CR 15 )-, -(R 14 CR 15 )-(R 14 M 2 R 15 )- oder -(R 14 CR 15 )- bedeutet, wobei R 14 und R 15 ein Wasserstoffatom, Chlor, eine Si(methyl) 3 -, N(methyl) 2 -, N(phenyl) 2 -, Si(phenyl) 3 -, B(methyl) 2 -, B(phenyl) 2 -, C 1 -C 4 -Alkyl-, insbesondere Methyl-, CF 3 -, C 6 -C 12 -Aryl-, Pentafluorphenyl-, C 1 -C 4 -Alkoxy-, insbesondere Methoxy-, C 2 -C 4 -Alkenyl-, C 7 -C 10 -Arylalkyl-, C 8 -C 12 -Arylalkenyl- oder C 7 -C 12 -Alkylarylgruppe bedeuten, oder R 14 und R 15 jeweils mit dem sie verbindenden Atomen einen Ring bilden, M 2 Silizium oder Germanium ist, z 0 oder 1 ist, R x und R y gleich sind, wobei R 5 bis R 9 die Bedeutung von R 14 haben und l + m + n + o + p ≥ 2 und ≤ 5 , und l + n + p ist ≥ 1 ist, wobei l, n, m, o oder p 0, 1, 2 oder 3 sein können oder R 5 bis R 9 mit den sie verbindenden Atomen einen oder mehrere Ringe bilden.

    摘要翻译: 要求保护式(I)的金属茂,其中M 1 = a IVb族,Vb或VIb族金属; R 2,R 2 = H,1-40C烃基如1-10C烷基或烷氧基,2-10C烯基,6-10C芳基或芳氧基,7-40C芳烷基或烷芳基,或8-40C芳烯基 ,OH或卤素; R 3,R 4 = H,卤素,1-20C烃基如1-10C烷基,2-10C烯基或6-10C芳基或N(R 16)2,SR 16, ,OSi(R 16)3,Si(R 16)3或P(R 16)2(其中R 16 =卤素,1-10C烷基或6-10C芳基); R 13 =桥接基团,例如-A-,-AA-,-QQ-,-OAO-,-Q-,-OA-,-QA-,-QQQ-,= BR 14,= AlR 14,-Ge-,-O - , - S - ,= SO,= SO 2,= NR 14,= CO,= PR 14或= P(O)R 14; A = -M 2 R 14 R 15 - ; Q = -CR 14 R 15 - ; R 14,R 15 = H,卤素,或含有SiF 3,NR 2或BR 2(R = 1-10C烷基或6-20C芳基)的含1-40C碳的基团,1-10C烷基, 氟烷基或烷氧基,氟代芳基的6-20C芳基,2-10C烯基,7-40C芳烷基或烷芳基,或8-40C芳烯基,或R 14 + R 15可以与连接原子形成环; M 2 = Si,Ge或Sn; z = 0或1; R f = - (CR 5)1 - (CR 6 = CR 6)m - (CR 7)n - (CR 8 = CR 8) ) - (CR 9)p - ,其中R 5 -R 9 = R 14和R 15; l + m + n + o + p = 2-6; l + n + p =至少1; l,m,n,o,p = 0,1,2,3或4; 指标m或o中的至少一个不为零; 组合m = 0,o = 0和l + n + p = 4,组合l = 0,n = 0,p = 0和m + o = 2。 还要求保护的是(i)制备(I)的方法,(ii)含有(a)茂金属(I)和(b)助催化剂的催化剂的方法,和(iii)生产方法 的聚烯烃。