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    PROCESS TO PRODUCE BIMODAL POLYOLEFINS WITH METALLOCENE CATALYSTS USING TWO REACTION ZONES
    2.
    发明公开
    PROCESS TO PRODUCE BIMODAL POLYOLEFINS WITH METALLOCENE CATALYSTS USING TWO REACTION ZONES 失效
    用于生产茂金属双峰聚烯烃在两个反应区

    公开(公告)号：EP0986588A1

    公开(公告)日：2000-03-22

    申请号：EP98929381.6

    申请日：1998-05-26

    申请人： FINA RESEARCH S.A.

    发明人： RAZAVI, Abbas ,  DEBRAS, Guy

    IPC分类号： C08F10/02 ,  C08F297/08 ,  C08F4/645 ,  C08L23/08

    CPC分类号： C08F297/08 ,  C08F4/65912 ,  C08F4/65916 ,  C08F10/02 ,  C08F110/02 ,  C08F210/16 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2308/00 ,  C08L2314/06 ,  C08F2/001 ,  C08F4/65927 ,  C08L2666/04 ,  C08F2500/12 ,  C08F2500/07 ,  C08F210/14

    摘要： A process for the preparation of polyolefins having a bi- or multimodal molecular weight distribution which comprises: (i) contacting olefin monomer and a first co-reactant with a catalyst system in a first reaction zone under first polymerisation conditions to produce a product comprising a first polyolefin having a first molecular weight and distribution; and (ii) contacting olefin monomer and a second co-reactant with a catalyst system in a second reaction zone under second polymerisation conditions to produce a second polyolefin having a second molecular weight distribution different from the first molecular weight distribution; wherein the first and second polyolefins are mixed together, wherein one of the co-reactants is hydrogen and the other is a comonomer selected from butene, methylpentene, hexene or octene, and wherein each catalyst system comprises (a) a metallocene catalyst component comprising a bis tetrahydroindenyl compound of the general formula (IndH4)2R''MQ2 in which each Ind is the same or different and is indenyl or substituted indenyl, R'' is a bridge which comprises a C1-C4 alkylene radical, a dialkyl germanium or silicon or siloxane, or an alkyl phosphine or amine radical, which bridge is substituted or unsubstituted, M is a Group IV metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and (b) a cocatalyst which activates the catalyst component.

    POLYOLEFIN PRODUCTION
    5.
    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

    申请人： FINA RESEARCH S.A.

    发明人： RAZAVI, Abbas ,  PETERS, Liliane

    IPC分类号： C08F110/02 ,  C08F4/622

    CPC分类号： C08F110/02 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  Y02P20/52 ,  C08F4/63927 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/07 ,  C08F210/14

    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。

    SYNDIOTACTIC/ATACTIC BLOCK POLYOLEFINS, CATALYSTS AND PROCESSES FOR PRODUCING THE SAME
    6.
    发明公开
    SYNDIOTACTIC/ATACTIC BLOCK POLYOLEFINS, CATALYSTS AND PROCESSES FOR PRODUCING THE SAME 失效
    间规/等规块聚烯烃催化剂和工艺FOR THEIR

    公开(公告)号：EP0910591A1

    公开(公告)日：1999-04-28

    申请号：EP97936634.0

    申请日：1997-07-10

    申请人： FINA RESEARCH S.A.

    发明人： RAZAVI, Abbas

    IPC分类号： C08F297 ,  C08F4 ,  C08F10 ,  C08F110

    CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/6592 ,  C08F110/06 ,  C08F2500/16 ,  C08F2500/03

    摘要： Metallocene catalysts useful for the preparation of syndiotactic/atactic block polyolefins have the general formula: R'(C4R'mC5C4R'n) XMeQ wherein X is a hetero-atom ligand with one or two lone pair electrons selected from the elements of Group VA or VIA which can be substituted or non-substituted; (C4Rm'C5C4R'n') is a fluorenyl or a symmetrically substituted fluorenyl or cyclopentadienyl ring; R' is hydrogen or hydrocarbyl radical having from 1-20 carbon atoms, a halogen, an alkoxy, and alkoxy alkyl or an alkylamino or alkylsilylo radical, each R' may be the same or different and m and n independently are 0, 1, 2, 3 or 4, with the proviso that the bilateraly symmetry is maintained; R' is a structural bridge between X and the (C4R'mC5C4R'n) ring to impart stereorigidity; Q is a hydrocarbyl radical having 1-20 carbon atoms or is a halogen; Me is a Group IIIB, IVB, VB, or VIB metal as positioned in the Periodic Table of Elements; and Me can be in any of its theoretically possible oxidation states. Olefin monomers (particularly propylene) polymerised using those catalysts to form syndiotactic/atactic block polymers of high molecular weight and comprising at least 70 % of syndiotactic triads.

    METALLOCENE CATALYST COMPONENT FOR USE IN PRODUCING ISOTACTIC POLYOLEFINS
    9.
    发明公开
    METALLOCENE CATALYST COMPONENT FOR USE IN PRODUCING ISOTACTIC POLYOLEFINS 失效
    茂和它们在生产等规聚烯烃

    公开(公告)号：EP0984989A1

    公开(公告)日：2000-03-15

    申请号：EP98930732.7

    申请日：1998-05-26

    申请人： FINA RESEARCH S.A.

    发明人： RAZAVI, Abbas ,  BELLIA, Vincenzo

    IPC分类号： C08F10/00 ,  C08F4/642

    CPC分类号： C08F10/00 ,  C08F4/65904 ,  C08F4/65912 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/65927 ,  C08F2500/12 ,  C08F2500/06 ,  C08F2500/15

    摘要： Provided is a metallocene catalyst component for use in preparing isotactic polyolefins, which component has the general formula (I): R'' (CpR1R2R3) (Cp'R'n) MQ2 wherein Cp is a substituted cyclopentadienyl ring; Cp' is a substituted or unsubstituted fluorenyl ring; R'' is a structural bridge imparting stereorigidity to the component; R1 is a substituent on the cyclopentadienyl ring which is distal to the bridge, which distal substituent comprises a bulky group of the formula XR*3 in which X is chosen from Group IVA, and each R* is the same or different and chosen from hydrogen or hydrocarbyl of from 1 to 20 carbon atoms, R2 is a substituent on the cyclopentadienyl ring which is proximal to the bridge and positioned non-vicinal to the distal substituent, and is of the formula YR#3, in which Y is chosen from Group IVA, and each R# is the same or different and chosen from hydrogen or hydrocarbyl of 1 to 7 carbon atoms, R3 is a substituent on the cyclopentadienyl ring which is proximal to the bridge and is a hydrogen atom or is of the formula ZR$3, in which Z is chosen from Group IVA, and each R$ is the same or different and chosen from hydrogen or hydrocarbyl of 1 to 7 carbon atoms, each R'n is the same or different and is hydrocarbyl having 1 to 20 carbon atoms in which 0≤n≤8; M is a Group IVB transition metal or vanadium; and each Q is hydrocarbyl having 1 to 20 carbon atoms or is a halogen.

    PRODUCTION OF MULTIMODAL POLYETHYLENE
    10.
    发明公开
    PRODUCTION OF MULTIMODAL POLYETHYLENE 有权
    多型聚乙烯的生产

    公开(公告)号：EP1117709A1

    公开(公告)日：2001-07-25

    申请号：EP99950551.4

    申请日：1999-09-24

    申请人： FINA RESEARCH S.A.

    发明人： DEBRAS, Guy ,  RAZAVI, Abbas ,  MICHEL, Jacques

    IPC分类号： C08F210/16 ,  C08L23/04 ,  C08F4/64

    CPC分类号： C08F210/16 ,  C08F4/65916 ,  C08F110/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2308/00 ,  C08L2314/02 ,  C08L2314/04 ,  C08L2314/06 ,  C08F4/65925 ,  C08F4/65927 ,  C08F2/001 ,  C08L2666/04 ,  C08F210/14 ,  C08F2500/01 ,  C08F2500/02 ,  C08F2500/13 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/05 ,  C08F2500/08 ,  C08F4/24

    摘要： A process for the preparation of polyethylene resins having a multimodal molecular weight distribution which comprises: (i) contacting ethylene monomer and a comonomer comprising an alpha-olefin having from 3 to 10 carbon atoms with a first catalyst system in a first reactor under first polymerisation conditions to produce a first polyethylene having a first molecular weight, an HLMI of not more than 0.5 g/10 min and a first density of not more than 0.925 g/ml and the first catalyst system comprising: (a) a metallocene catalyst comprising a bis tetrahydroindenyl compound of the general formula: (IndH4)2R'MQ2 in which each Ind is the same or different and is indenyl or substituted indenyl, R' is a bridge which comprises a C1-C20 alkylene radical, a dialkyl germanium or silicon or siloxane, or an alkyl phosphine or amine radical, which bridge is substituted or unsubstituted; M is a Group IVB transition metal or vanadium and each Q is hydrocarbyl having 1 to 20 carbon atoms or halogen; and (b) a cocatalyst which activates the catalyst component; (ii) providing a second polyethylene having a second lower molecular weight and second higher density than the first polyethylene, the second polyethylene having been produced using a catalyst other than the bis tetrahydroindenyl compound; and (iii) mixing together the first and second polyethylenes to form a polyethylene resin having a multimodal molecular weight distribution.

    摘要翻译： 一种制备具有多峰分子量分布的聚乙烯树脂的方法，该方法包括：（i）在第一聚合反应中，使乙烯单体和包含具有3至10个碳原子的α-烯烃的共聚单体与第一催化剂体系接触 生产具有第一分子量，不高于0.5g / 10min的HLMI和不高于0.925g / ml的第一密度的第一聚乙烯的条件，并且所述第一催化剂体系包含：（a）茂金属催化剂，其包含 （IndH 4）2 R'MQ 2的双四氢茚基化合物，其中每个Ind是相同或不同的并且是茚基或取代的茚基，R'是包含C 1 -C 20亚烷基，二烷基锗或硅的桥或 硅氧烷或烷基膦或胺基，该桥是取代或未取代的; M为IVB族过渡金属或钒，每个Q为具有1至20个碳原子的烃基或卤素; 和（b）活化催化剂组分的助催化剂; （ii）提供具有比所述第一聚乙烯低的第二分子量和第二高密度的第二聚乙烯，所述第二聚乙烯是使用不同于所述双四氢茚基化合物的催化剂生产的; 和（iii）将第一和第二聚乙烯混合在一起以形成具有多峰分子量分布的聚乙烯树脂。