Method for bulk polymerization
    1.
    发明授权
    Method for bulk polymerization 有权
    本体聚合方法

    公开(公告)号:US08163855B2

    公开(公告)日:2012-04-24

    申请号:US12936571

    申请日:2009-04-06

    Abstract: A method for polymerizing conjugated diene monomer into polydienes, the method comprising: polymerizing conjugated diene monomer within a liquid-phase polymerization mixture that includes conjugated diene monomer, a lanthanide-based catalyst system, dicyclopentadiene or substituted dicyclopentadiene, and optionally organic solvent, with the proviso that the organic solvent, if present, is less than about 20% by weight based on the total weight of the polymerization mixture.

    Abstract translation: 一种将共轭二烯单体聚合成聚二烯的方法,所述方法包括:在包含共轭二烯单体,镧系元素基催化剂体系,二环戊二烯或取代的二环戊二烯和任选的有机溶剂的液相聚合混合物中聚合共轭二烯单体, 条件是有机溶剂(如果存在)基于聚合混合物的总重量小于约20重量%。

    Living olefin polymerization processes
    4.
    发明申请
    Living olefin polymerization processes 审中-公开
    活性烯烃聚合工艺

    公开(公告)号:US20040138324A1

    公开(公告)日:2004-07-15

    申请号:US10646355

    申请日:2003-08-22

    Abstract: Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.

    Abstract translation: 公开了具有末端碳 - 碳双键的烯烃单体的活性聚合方法。 该方法使用引发剂,其包括金属原子和具有两个15原子和16个原子或3个15原子的配体。 配体通过两个阴离子或共价键和二价键与金属原子结合。 引发剂在不存在烯烃单体的反应条件下特别稳定。 该方法提供具有低多分散性的聚合物,特别是具有低多分散性的嵌段共聚物。 这些方法的另外的优点是,在嵌段共聚物合成期间,形成相对少量的均聚物。

    Cascaded boiling pool slurry reactors for producing bimodal low to medium density polyethylene polymers
    5.
    发明授权
    Cascaded boiling pool slurry reactors for producing bimodal low to medium density polyethylene polymers 失效
    用于生产双峰低至中密度聚乙烯聚合物的级联沸腾池淤浆反应器

    公开(公告)号:US06716936B1

    公开(公告)日:2004-04-06

    申请号:US10320003

    申请日:2002-12-16

    Abstract: The use of two or more light solvent boiling pool reactors in series allows polymerization of ethylene and comonomer(s) to cost effectively produce bimodal polyethylene copolymers having lower densities than are practically achievable with conventional stirred tank, slurry loop or gas phase reactor technologies. Introducing catalyst to only the first reactor, operating the first reactor at high hydrogen compositions, and using a plurality of series-connected flash drums to remove hydrogen from the first reactor polymer slurry product stream allows for the production of highly homogeneous high molecular weight bimodal polyethylene resins.

    Abstract translation: 串联使用两个或更多个轻质溶剂沸点池反应器可使乙烯和共聚单体聚合成本有效地生产具有比常规搅拌槽,淤浆环或气相反应器技术实际可实现的密度低的双峰聚乙烯共聚物。 将催化剂引入仅第一反应器,以高氢组合物操作第一反应器,并且使用多个串联连接的闪蒸鼓以从第一反应器聚合物浆料产物流中除去氢气允许生产高度均匀的高分子量双峰聚乙烯 树脂。

    RING-OPENING METATHESIS POLYMERIZATION (ROMP) OF CYCLO-OLEFINS WITH MOLYBDENUM CATALYSTS
    7.
    发明申请
    RING-OPENING METATHESIS POLYMERIZATION (ROMP) OF CYCLO-OLEFINS WITH MOLYBDENUM CATALYSTS 失效
    环烯烃与环烷烃催化剂的开环聚合(ROMP)

    公开(公告)号:US20020111446A1

    公开(公告)日:2002-08-15

    申请号:US09730585

    申请日:2000-12-07

    CPC classification number: C08G61/08 Y10S526/903

    Abstract: A polymerization system for ring opening polymerization of cycloolefins, comprising a catalyst nullMOX2L2null, a Lewis acid as co-catalyst, and a chain-transfer agent, 1 wherein (1) both X groups are the same halogen atom selected from the group consisting of Cl and Br, and both L groups are the same halogen atom as X; or (2) both of the X groups are the same halogen atom selected from the group consisting of Cl and Br, and both of the L groups are the same straight chain or branched alkyl group having 1-4 carbon atoms; or (3) both X groups are the same halogen atom selected from the group consisting of Cl and Br, and both L groups are the same straight chain or branched alkoxy group having 1-4 carbon atoms; or (4) both X groups are the same alkyl group having 1-4 carbon atoms, and both L groups are the same alkoxy group having 1-4 carbon atoms; or (5) one X group is a halogen atom selected from the group consisting of Cl and Br, and the other X group together with both L groups constitute a tridentate ligand; or (6) one X group is a straight chain or branched alkoxy group having 1-4 carbon atoms, and the other X group together with both L groups constitute a tridentate ligand.

    Abstract translation: 包含催化剂[MOX2L2],路易斯酸作为助催化剂和链转移剂的环烯烃开环聚合的聚合体系,其中(1)两个X基团都是相同的卤素原子,选自 Cl和Br,并且两个L基团与X相同的卤素原子; 或(2)两个X基团都是与Cl和Br相同的卤素原子,并且两个L基都是具有1-4个碳原子的直链或支链烷基; 或(3)两个X基都是选自Cl和Br的相同的卤素原子,并且两个L基都是具有1-4个碳原子的相同的直链或支链烷氧基; 或(4)两个X基都是具有1-4个碳原子的相同的烷基,两个L基都是具有1-4个碳原子的相同的烷氧基; 或(5)一个X基团是选自Cl和Br的卤素原子,另一个X基团与两个L基团构成三齿配体; 或(6)一个X基团是具有1-4个碳原子的直链或支链烷氧基,另一个X基团与两个L基团构成三齿配体。

    Method of polymerization
    8.
    发明授权
    Method of polymerization 有权
    聚合方法

    公开(公告)号:US06271325B1

    公开(公告)日:2001-08-07

    申请号:US09312878

    申请日:1999-05-17

    Abstract: This invention relates to a composition of matter represented by the formula below, and to a polymerization process comprising combining an olefin in the gas or slurry phase with an activator, a support and a compound represented by the following formula: wherein M is a group 3 to 14 metal, each X is independently an anionic leaving group, n is the oxidation state of M, m is the formal charge of the YZL ligand, Y is a group 15 element, Z is a group 15 element, L is a group 15 or 16 element, R1 and R2 are independently a C1 to C20 hydrocarbon group, a heteroatom containing group, silicon, germanium, tin, lead, phosphorus, a halogen, R1 and R2 may also be interconnected to each other, R3 is absent, or is hydrogen, a group 14 atom containing group, a halogen, a heteroatom containing group, R4 and R5 are independently an aryl group, a substituted aryl group, a cyclic alkyl group, a substituted cyclic alkyl group, or multiple ring system, R6 and R7 are independently absent or hydrogen, halogen, a heteroatom or a hydrocarbyl group, or a heteroatom containing group.

    Abstract translation: 本发明涉及由下式表示的物质组合物,以及一种聚合方法,包括将气相或浆料相中的烯烃与活化剂,载体和由下式表示的化合物组合:其中M是3〜 14金属,每个X独立地是阴离子离去基团,n是M的氧化态,m是YZL配体的正电荷,Y是15族元素,Z是15族元素,L是15族或 16元素,R 1和R 2独立地为C 1至C 20烃基,含杂原子的基团,硅,锗,锡,铅,磷,卤素,R 1和R 2也可彼此互连,R3不存在,或 氢,含14个原子的基团,卤素,含杂原子的基团,R4和R5独立地是芳基,取代的芳基,环烷基,取代的环烷基或多环系,R6和R7 独立地不存在或氢,卤素,杂原子 原子或烃基,或含杂原子的基团。

    Process for the preparation of repolymerized catalyst composition and a
process for polymerizing .alpha.-olefins
    9.
    发明授权
    Process for the preparation of repolymerized catalyst composition and a process for polymerizing .alpha.-olefins 失效
    制备再聚合催化剂组合物的方法和聚合α-烯烃的方法

    公开(公告)号:US6040260A

    公开(公告)日:2000-03-21

    申请号:US876442

    申请日:1997-06-16

    CPC classification number: C08F10/00 C08F110/06 Y10S526/903 Y10S526/904

    Abstract: The present invention concerns prepolymerized catalyst composition for polymerization of .beta.-olefins, a process for the preparation thereof and a process for polymerization of .beta.-olefins. According to the polymerization process a procatalyst composition containing a transition metal is prepolymerized with a monomer in order to produce a prepolymerized Ziegler-Natta type catalyst composition and said catalyst composition is contacted with an alpha-olefin monomer, in particular with ethylene or propylene, for preparing a polymer. According to the invention the procatalyst composition is preferably prepolymerized in a medium which is inert to the catalyst components, the viscosity of the medium being so high that the catalyst does not substantially settle in this medium. Because the catalyst composition according to the invention does not have to be dried before being fed into the medium, its activity is high before and during polymerization.

    Abstract translation: 本发明涉及用于聚合β-烯烃的预聚合催化剂组合物,其制备方法和β-烯烃聚合方法。 根据聚合方法,将含有过渡金属的原料催化剂组合物与单体预聚合以制备预聚合的齐格勒 - 纳塔型催化剂组合物,并将所述催化剂组合物与α-烯烃单体,特别是与乙烯或丙烯接触,用于 制备聚合物。 根据本发明,原催化剂组合物优选在对催化剂组分是惰性的介质中预聚合,介质的粘度如此之高,使得催化剂基本上不会沉淀在该介质中。 因为根据本发明的催化剂组合物在进料到介质中之前不必被干燥,因此在聚合之前和聚合过程中其活性很高。

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