Branched Vinyl Terminated Polymers And Methods For Production Thereof
    54.
    发明申请
    Branched Vinyl Terminated Polymers And Methods For Production Thereof 有权
    支链乙烯基终端聚合物及其生产方法

    公开(公告)号:US20120245299A1

    公开(公告)日:2012-09-27

    申请号:US13411929

    申请日:2012-03-05

    IPC分类号: C08F255/02 C08F8/00 C08F4/76

    摘要: This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.

    摘要翻译: 本发明涉及一种聚合方法,其包括(i)在大于35℃的温度下使一种或多种包含乙烯和/或丙烯的单体与包含茂金属催化剂化合物和活化剂的催化剂体系接触( ii)将至少50mol%的单体转化成聚烯烃; 和(iii)获得相对于总不饱和链末端具有大于50%烯丙基链端的支链聚烯烃。 本发明还涉及支链聚烯烃和官能化支化聚烯烃。

    Diblock Copolymers Prepared by Cross Metathesis
    55.
    发明申请
    Diblock Copolymers Prepared by Cross Metathesis 有权
    通过交叉复分解制备的二嵌段共聚物

    公开(公告)号:US20120245290A1

    公开(公告)日:2012-09-27

    申请号:US13072383

    申请日:2011-03-25

    IPC分类号: C08F299/00 C08L53/00

    摘要: This invention relates to a composition comprising a multiblock polyolefin represented by the formula: PO—C(R11)(R12)—C(R13)═C(R14)—C(R15)(R16)—PO*, or isomers thereof, wherein R11, R12, R13, R14, R15, and R16, are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; PO and PO* are polyolefins; PO and PO* are each independently a substituted or unsubstituted hydrocarbyl group having 9 to 4000 carbon atoms, provided that at least one of PO and PO* are C20 or greater, said polyolefin having: 1) an internal unsaturation as shown by the 13C NMR peak at between about 128 and about 132 ppm; 2) an Mn ratio “Z”=0.1 to 10 where Z is the Mn (as determined by 13C NMR) divided by Mn (as determined according to Gel Permeation Chromotography using polystyrene standards); and 3) optionally, from 0.3(J) and 0.75(J) internal unsaturations per 1000 carbons as determined by 1H NMR spectroscopy, where J is the number of reactive groups per 1000 carbons for the mixture of vinyl terminated polyolefins that become PO and PO*, before they are coupled by an alkene metathesis catalyst.

    摘要翻译: 本发明涉及一种组合物,其包含由式:PO-C(R 11)(R 12)-C(R 13)= C(R 14)-C(R 15)(R 16)-PO *表示的多嵌段聚烯烃或其异构体, 其中R11,R12,R13,R14,R15和R16各自独立地为取代或未取代的C1至C4烃基或氢; PO和PO *是聚烯烃; PO和PO *各自独立地为具有9至4000个碳原子的取代或未取代的烃基,条件是PO和PO *中的至少一个为C20或更大,所述聚烯烃具有:1)如13 C NMR所示的内部不饱和度 在约128至约132ppm之间的峰; 2)Mn比“Z”= 0.1〜10,其中Z为Mn(通过13 C NMR测定)除以Mn(根据使用聚苯乙烯标准品的凝胶渗透色谱法测定); 和3)任选地,通过1 H NMR光谱确定的每1000个碳的0.3(J)和0.75(J)内部不饱和度,其中J是成为PO和PO的乙烯基封端的聚烯烃的混合物的每1000个碳的反应性数 *,在它们通过烯烃复分解催化剂偶合之前。

    Phase separator and monomer recycle for supercritical polymerization process
    56.
    发明授权
    Phase separator and monomer recycle for supercritical polymerization process 有权
    用于超临界聚合过程的相分离器和单体循环

    公开(公告)号:US08242237B2

    公开(公告)日:2012-08-14

    申请号:US11854936

    申请日:2007-09-13

    IPC分类号: C08F6/26 C08F10/06

    摘要: A process for polymerizing olefins, comprising the steps of: (a) contacting in a dense-fluid-homogeneous-polymerization system (“PS”), >30 wt % C3+ olefins with: catalyst, activator, 0-50 mol % comonomer, and 0-40 wt % diluent/solvent, at a temperature > PS Tc and a pressure no lower than 1 MPa below the PS cloud point pressure and the polymer or above 80° C., whichever is higher; (f) separating the monomer-rich phase from the polymer-rich phase; (g) recycling the separated monomer-rich phase and recovering polymer from the polymer-rich phase.

    摘要翻译: 一种聚合烯烃的方法,包括以下步骤:(a)在稠密 - 液体均相聚合体系(“PS”)中,> 30wt%的C 3+烯烃与催化剂,活化剂,0-50mol%共聚单体, 和0-40重量%稀释剂/溶剂,温度> PS Tc和低于PS浊点压力和<200MPa的不低于1MPa的压力; (b)形成包含聚合物 - 单体混合物的反应器流出物; (c)任选地加热混合物(b); (d)在分离容器中收集混合物(b); (e)降低压力以形成两相混合物,其中反应器中的压力高于分离容器中的压力为7-100MPa,分离容器中的温度>聚合物或高于80℃, 以较高者为准; (f)从富含聚合物的相分离富单体相; (g)循环分离的富含单体的相并从富含聚合物的相回收聚合物。