Tridentate metal catalyst for olefin polymerization
    31.
    发明授权
    Tridentate metal catalyst for olefin polymerization 失效
    用于烯烃聚合的三齿金属催化剂

    公开(公告)号:US07439205B2

    公开(公告)日:2008-10-21

    申请号:US11285479

    申请日:2005-11-21

    IPC分类号: C08F4/72

    摘要: In accordance with the present invention, there is provided a transition metal olefin polymerization catalyst component characterized by the formula: where, M is a Group IV or a Group IV transition metal, B is a bridge group containing at least two carbon atoms, A′ and A″ are organogroups, each containing a heteroatom selected from the group consisting of oxygen, sulfur, nitrogen and phosphorus, X is selected from the group consisting of chlorine, bromine, iodine, a C1-C20 alkyl group, a C6-C30 aromatic group and mixtures thereof, and n is 1, 2 or 3. The invention also encompasses a method for the polymerization of an ethylenically unsaturated monomer which comprises contacting a transition metal catalyst component as characterized by formula (1) above and an activating co-catalyst component in a polymerization reaction zone with an ethylenically unsaturated monomer under polymerization conditions to produce a polymer product.

    摘要翻译: 根据本发明,提供一种过渡金属烯烃聚合催化剂组分,其特征在于下式:其中M是IV族或IV族过渡金属,B是含有至少两个碳原子的桥基,A' 和A“是有机基团,各自含有选自氧,硫,氮和磷的杂原子,X选自氯,溴,碘,C 1 - C 20烷基,C 6 -C 30芳族基团及其混合物,n为1,2或3.本发明还涉及 包括烯属不饱和单体的聚合方法,该方法包括在聚合反应条件下,将聚合反应区中的式(1)表示的过渡金属催化剂组分与活化助催化剂组分与烯属不饱和单体接触,以产生 聚合物产品。

    Supported metallocene catalysts and their use in producing stereospecific polymers
    32.
    发明授权
    Supported metallocene catalysts and their use in producing stereospecific polymers 有权
    负载型茂金属催化剂及其在制备立体有择聚合物中的应用

    公开(公告)号:US07368411B2

    公开(公告)日:2008-05-06

    申请号:US11700351

    申请日:2007-01-31

    摘要: Supported stereospecific catalysts and processes for the stereotactic propagation of a polymer chain derived from ethylenically unsaturated monomers which contain three or more carbon atoms or which are substituted vinyl compounds, specifically alpha olefins, particularly the polymerization of propylene to produce syndiotactic or isotactic polypropylene. The supported metallocene catalyst comprises a stereospecific metallocene catalyst and a co-catalyst component comprising at least one of an alkyl alumoxane and an alkylaluminum compound. Both the metallocene catalyst and the co-catalyst are supported on a particulate silica support comprising silica particles having an average particle size of 5-40 microns and an average effective pore size of 50-200 angstroms. The silica support further has a differential pore size distribution of a pore volume of at least 0.01 cm3/g. within a range having a maximum pore width of no more than 300 angstroms. The metallocene has a retention factor on this support of at least 90 wt. % after aging in tri-isobutylaluminum at a temperature of 25° C. for a period of 12 hours.

    摘要翻译: 支持的立体定向催化剂和衍生自含有三个或更多个碳原子的烯属不饱和单体的聚合物链的立体定向增长的方法,或者是取代的乙烯基化合物,特别是α-烯烃,特别是丙烯聚合以产生间同立构或全同立构聚丙烯。 负载型茂金属催化剂包括立体特异性茂金属催化剂和包含烷基铝氧烷和烷基铝化合物中的至少一种的助催化剂组分。 金属茂催化剂和助催化剂都负载在包含平均粒径为5-40微米,平均有效孔径为50-200埃的二氧化硅颗粒的颗粒状二氧化硅载体上。 二氧化硅载体还具有至少0.01cm 3 / g的孔体积的不均匀孔径分布。 在最大孔隙宽度不大于300埃的范围内。 金属茂在该载体上具有至少90重量%的保留因子。 在三异丁基铝中,在25℃的温度下老化12小时。

    Propylene polymers for lab/medical devices
    35.
    发明授权
    Propylene polymers for lab/medical devices 有权
    用于实验室/医疗设备的丙烯聚合物

    公开(公告)号:US08246918B2

    公开(公告)日:2012-08-21

    申请号:US12581565

    申请日:2009-10-19

    IPC分类号: B01L3/00

    摘要: Polymer compositions and articles formed therefrom are described herein. The compositions include a random copolymer and a radiation additive, wherein the random copolymer includes propylene and less than 2 wt. % ethylene and exhibits a melt flow rate of from about 30 to 100 dg/min., the polymer composition exhibits a flexural modulus of from about 160 kpsi to about 200 kpsi and the polymer composition is adapted to produce a polymer article exhibiting low plate out, a haze at 20 mils of no greater than 15%, radiation stability and autoclavability.

    摘要翻译: 本文描述了聚合物组合物和由其形成的制品。 组合物包括无规共聚物和辐射添加剂,其中无规共聚物包括丙烯和小于2wt。 %乙烯并且表现出约30至100dg / min的熔体流动速率,所述聚合物组合物显示出约160kpsi至约200kpsi的弯曲模量,并且所述聚合物组合物适于制备展示低板的聚合物制品 ,20密耳不大于15%的雾度,辐射稳定性和耐高压灭菌性。

    Catalyst Components, Process for Their Preparation and Their Use as Catalyst Components in Polymerization of Olefins
    36.
    发明申请
    Catalyst Components, Process for Their Preparation and Their Use as Catalyst Components in Polymerization of Olefins 审中-公开
    催化剂组分,其制备方法及其作为烯烃聚合中催化剂组分的用途

    公开(公告)号:US20120116033A1

    公开(公告)日:2012-05-10

    申请号:US13344368

    申请日:2012-01-05

    摘要: Catalyst compositions having Cs symmetry and processes utilizing Cs symmetric catalyst components for the polymerization of ethylenically unsaturated monomers to produce polymers, including copolymers or homopolymers. Monomers, which are polymerized or copolymerized include ethylene, C3+ alpha olefins and substituted vinyl compounds, such as styrene and vinyl chloride. The catalyst component is characterized by the formula: wherein M is a Group 4-11 transition metal, n is an integer of from 1-3, Q is halogen or a C1-C2 alkyl group, PY is a pyridinyl group, R′ and R″ are each C1-C20 hydrocarbyl group, A1 is a mononuclear aromatic group, and A2 is a polynuclear aromatic group, such as a terphenyl group. The catalyst component is used with an activating co-catalyst component such as an alumoxane. Also disclosed is a process for the preparation of a pyridinyl-linked bis-amino ligand suitable for use in forming the catalyst component.

    摘要翻译: 具有Cs对称性的催化剂组合物和利用Cs对称催化剂组分用于烯键式不饱和单体聚合以产生聚合物(包括共聚物或均聚物)的方法。 聚合或共聚的单体包括乙烯,C 3+α-烯烃和取代的乙烯基化合物,例如苯乙烯和氯乙烯。 催化剂组分的特征在于下式:其中M是4-11族过渡金属,n是1-3的整数,Q是卤素或C 1 -C 2烷基,P Y是吡啶基,R'和 R“分别为C1-C20烃基,A1为单核芳香族基团,A2为三联苯基等多核芳香族基团。 催化剂组分与活化助催化剂组分如铝氧烷一起使用。 还公开了制备适于用于形成催化剂组分的吡啶基连接的双 - 氨基配体的方法。

    Process for polyolefin production using fluorinated transition metal catalysts
    38.
    发明申请
    Process for polyolefin production using fluorinated transition metal catalysts 审中-公开
    使用氟化过渡金属催化剂生产聚烯烃的方法

    公开(公告)号:US20070255024A1

    公开(公告)日:2007-11-01

    申请号:US11471821

    申请日:2006-06-21

    IPC分类号: C08F4/44

    摘要: Supported catalyst systems and methods of forming polyolefins are generally described herein. The polymerization methods generally include introducing an inorganic support material to a reaction zone, wherein the inorganic support material includes a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof, introducing a transition metal compound to the reaction zone and contacting the transition metal compound with the inorganic support material for in situ activation/heterogenization of the transition metal compound to form a catalyst system. The method further includes introducing an olefin monomer to the reaction zone and contacting the catalyst system with the olefin monomer to form a polyolefin.

    摘要翻译: 载体催化剂体系和形成聚烯烃的方法一般在此描述。 聚合方法通常包括将无机载体材料引入反应区,其中无机载体材料包括选自Si-O-Al-F,F-Si-O-Al,F-Si-O-Al- F和其组合,将过渡金属化合物引入反应区并使过渡金属化合物与无机载体材料接触,用于过渡金属化合物的原位活化/异质化以形成催化剂体系。 该方法还包括将烯烃单体引入反应区并使催化剂体系与烯烃单体接触以形成聚烯烃。

    Fluorinated transition metal catalysts and formation thereof
    39.
    发明申请
    Fluorinated transition metal catalysts and formation thereof 审中-公开
    氟化过渡金属催化剂及其形成

    公开(公告)号:US20070255022A1

    公开(公告)日:2007-11-01

    申请号:US11413791

    申请日:2006-04-28

    IPC分类号: C08F4/44 B01J31/00

    摘要: Supported catalyst systems and methods of forming the same are generally described herein. The methods generally include providing an inorganic support composition, wherein the inorganic support composition includes a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof and contacting the inorganic support composition with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.

    摘要翻译: 载体催化剂体系及其形成方法一般在此描述。 所述方法通常包括提供无机载体组合物,其中所述无机载体组合物包括选自Si-O-Al-F,F-Si-O-Al,F-Si-O-Al-F及其组合的键合序列, 使无机载体组合物与过渡金属化合物接触以形成负载型催化剂体系,其中过渡金属化合物由式[L] M [A] ; 其中L是大体积配体,A是离去基团,M是过渡金属,m和n使总配体的化合价对应于过渡金属的价态。

    Fluorinated transition metal catalysts and large scale formation thereof
    40.
    发明申请
    Fluorinated transition metal catalysts and large scale formation thereof 审中-公开
    氟化过渡金属催化剂及其大规模生成

    公开(公告)号:US20070254801A1

    公开(公告)日:2007-11-01

    申请号:US11529903

    申请日:2006-09-29

    IPC分类号: B01J31/00

    摘要: Catalyst systems and methods of forming the same are described herein. The catalyst system may be formed by contacting an alumina-silica support composition with ammonium bifluoride in the presence of water to form a first fluorinated support composition. The method then includes heating the first fluorinated support composition in an oxygen containing atmosphere to a temperature of from about 200° C. to about 600° C. to form a second fluorinated support composition, wherein the second fluorinated support composition includes a bonding sequence selected from Si—O—Al—F, F—Si—O—Al, F—Si—O—Al—F and combinations thereof and then contacting the second fluorinated support composition with a transition metal compound to form a supported catalyst system, wherein the transition metal compound is represented by the formula [L]mM[A]n; wherein L is a bulky ligand, A is a leaving group, M is a transition metal and m and n are such that a total ligand valency corresponds to the transition metal valency.

    摘要翻译: 本文描述了催化剂体系及其形成方法。 催化剂体系可以通过在水的存在下使氧化铝 - 二氧化硅载体组合物与二氟化铵反应形成第一氟化支撑组合物而形成。 该方法然后包括将含氧气氛中的第一氟化载体组合物加热至约200℃至约600℃的温度以形成第二氟化载体组合物,其中第二氟化载体组合物包含选择的键合顺序 从Si-O-Al-F,F-Si-O-Al,F-Si-O-Al-F及其组合,然后使第二氟化支撑组合物与过渡金属化合物接触以形成负载型催化剂体系,其中 过渡金属化合物由式[L] M [A] n N表示; 其中L是大体积配体,A是离去基团,M是过渡金属,m和n使总配体的化合价对应于过渡金属的价态。