摘要:
This invention relates to processes for increasing the viscosity of an oligomer composition including contacting the oligomer composition comprising one or more vinyl terminated oligomer with a supported mixed metal oxide catalyst; wherein the contacting causes the reaction of the vinyl terminated oligomers; and producing a product oligomer composition having a higher viscosity than the oligomer composition.
摘要:
This invention relates to a vinyl terminated higher olefin copolymer having an Mn of 300 g/mol or more (measured by 1H NMR) comprising: (i) from about 20 to about 99.9 mol % of at least one C5 to C40 higher olefin monomer; and (ii) from about 0.1 to about 80 mol % of propylene; wherein the higher olefin copolymer has at least 40% allyl chain ends. The copolymer may also have an isobutyl chain end to allyl chain end ratio of less than 0.7:1 and/or an allyl chain end to vinylidene chain end ratio of greater than 2:1.
摘要翻译:本发明涉及Mn为300g / mol或更高(通过1 H NMR测量)的乙烯基封端的高级烯烃共聚物,其包含:(i)约20-约99.9mol%的至少一种C 5至C 40高级烯烃单体; 和(ii)约0.1至约80mol%的丙烯; 其中所述较高级烯烃共聚物具有至少40%的烯丙基链端。 该共聚物也可以具有小于0.7:1的异丁基链端与烯丙基链末端比和/或烯丙基链端与亚乙烯基链末端比大于2:1。
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:
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。
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:
This invention relates to microporous membranes comprising polyolefin, the use of such membranes as battery separators, and methods for producing such microporous membranes. In particular, the invention relates to microporous membranes having a shutdown temperature in the range of 120.0° C. to 130.0° C. and a maximum solid state heat shrinkage ≦30.0%.
摘要:
A microporous membrane comprising layers, wherein at least one layer comprises a first polymer having a Tm in the range of 115.0° C. to 130.0° C. and an Mw of from 5.0×103 to 4.0×105, and the membrane has a shutdown temperature ≦130.5° C. and a rupture temperature ≧170.0° C.
摘要:
A layered microporous polymeric membrane includes a first blend region having a thickness T1, a third blend region having a thickness T3, and a second blend region located between the first and third blend regions and having a thickness T2, wherein [(T1−T2)/T1]≧0.05 and [(T3−T2)/T3]≧0.05.
摘要:
Provided are methods of producing polymers with broadened molecular weight and/or composition distribution in a continuous homogeneous polymerization system utilizing reactor temperature gradients, reactor polymer concentration gradients, monomer concentration gradients, catalyst concentration gradients, and combinations thereof in the polymerization reactor. Such methods are particularly suitable when utilizing metallocene catalysts and other single-site catalysts, which generally produce polymers with narrow molecular weight and composition distribution.