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    Process for Making Ethylene-Based Polymers Using Hydrocarbon Initiators
    21.
    发明申请
    Process for Making Ethylene-Based Polymers Using Hydrocarbon Initiators 有权
    使用烃引发剂制备基于乙烯的聚合物的方法

    公开(公告)号：US20170073439A1

    公开(公告)日：2017-03-16

    申请号：US15308988

    申请日：2015-05-08

    Applicant: Dow Global Technologies LLC

    Inventor： Sean W. Ewart ,  Teresa P. Karjala ,  Mehmet Demirors ,  Christopher R. Eddy

    IPC: C08F110/02

    CPC classification number: C08F110/02 ,  C08F10/02 ,  C08F4/00 ,  C08F210/02 ,  C08F220/18 ,  C08F218/08 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/04

    Abstract: An ethylene-based polymer, e.g., LDPE, with a low dissipation factor is made by a process comprising the step of contacting at polymerization conditions ethylene and, optionally, one or more comonomers, e.g., an alpha-olefin, with at least one carbon-carbon (C—C) hydrocarbyl, free-radical initiator of Structure 1: wherein R1, R2, R3, R4, R5 and R6, are each, independently, hydrogen or a hydrocarbyl group and wherein, optionally, two or more R groups (R1, R2, R3, R4, R5 and R6) form a ring structure, with the provisos that at least one of R2 and R5, and at least one of R3 and R6 is a hydrocarbyl group of at least two carbon atoms, e.g., an alkaryl of at least seven carbon atoms.

    Abstract translation: 通过包括以下步骤的方法制备具有低损耗因子的乙烯类聚合物，例如LDPE，所述方法包括在聚合条件下使乙烯和任选的一种或多种共聚单体（例如α-烯烃）与至少一种碳 （C-C）烃基，自由基引发剂，其中R 1，R 2，R 3，R 4，R 5和R 6各自独立地为氢或烃基，并且其中任选地，两个或多个R基团 （R 1，R 2，R 3，R 4，R 5和R 6）形成环结构，条件是R 2和R 5中的至少一个以及R 3和R 6中的至少一个是至少两个碳原子的烃基，例如 ，至少7个碳原子的烷芳基。

    HIGH PRESSURE FREE-RADICAL POLYMERIZATIONS
    24.
    发明申请
    HIGH PRESSURE FREE-RADICAL POLYMERIZATIONS 审中-公开

    公开(公告)号：US20180134824A1

    公开(公告)日：2018-05-17

    申请号：US15574310

    申请日：2016-06-30

    Applicant: Dow Global Technologies LLC

    Inventor： Christopher R. Eddy ,  Jeffery S. Bradley ,  Otto J. Berbee ,  Sarat Munjal ,  Bryan Gutermuth

    IPC: C08F210/02 ,  B01J3/04

    CPC classification number: C08F210/02 ,  B01J3/00 ,  B01J3/04 ,  B01J3/042 ,  Y02P20/582 ,  C08F2/01 ,  C08F220/06

    Abstract: A process to form an ethylene-based polymer comprising, in polymerized form, ethylene and at least one acid comonomer, said process comprising polymerizing a reaction mixture comprising the ethylene and the acid comonomer, in a reactor configuration comprising at least one Secondary compressor, at least one pressurization device, and at least one reactor selected from the following: at least one autoclave reactor, at least one tubular reactor, or a combination thereof; and wherein the reaction mixture is polymerized in the presence of at least one free-radical initiator, and at a pressure of at least 1000 Bar; and wherein at least a portion of a comonomer composition comprising at least a portion of the acid comonomer used in the polymerization, is compressed, to form a compressed comonomer composition, in the pressurization device, up to a discharge pressure ranging from 1000 Bar to 4000 Bar, and at a discharge temperature (DT) from 10 C to 100 C; and wherein the compressed comonomer composition bypasses the Secondary compressor, and is fed, downstream from the Secondary compressor, into the reactor, and/or into one or more feed streams to the reactor.

    Processes to Form Ethylene-Based Polymers Using Asymmetrical Polyenes
    27.
    发明申请
    Processes to Form Ethylene-Based Polymers Using Asymmetrical Polyenes 有权
    使用不对称聚烯烃形成乙烯基聚合物的方法

    公开(公告)号：US20160297904A1

    公开(公告)日：2016-10-13

    申请号：US15100483

    申请日：2014-12-23

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Otto J. Berbee ,  Stefan Hinrichs ,  Christopher R. Eddy ,  Sarat Munjal ,  John O. Osby ,  Sean W. Ewart

    IPC: C08F210/02

    CPC classification number: C08F210/02 ,  C09D123/04 ,  Y02P20/582 ,  C08F2220/281 ,  C08F2220/282 ,  C08F2/01

    Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“α,β unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i≧2), wherein reaction zone i is downstream from reaction zone 1.

    Abstract translation: 一种形成乙烯类聚合物的方法，包括聚合乙烯和至少一种包含“α，β不饱和羰基端”（“α，β不饱和羰基端”）和“C-C双键末端”的不对称多烯， “其中聚合在存在至少一种自由基引发剂的情况下进行; 并且其中所述聚合在包括至少两个反应区，反应区1和反应区i（i≥2）的反应器构型中进行，其中反应区i在反应区1的下游。

    LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER
    28.
    发明申请
    LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE IN COMBINATION WITH ONE OTHER POLYMER 有权
    长链分支（LCB），乙烯与一种其他聚合物组合的嵌段或互连共聚物

    公开(公告)号：US20140213735A1

    公开(公告)日：2014-07-31

    申请号：US14242251

    申请日：2014-04-01

    Applicant: Dow Global Technologies LLC

    Inventor： Mehmet Demirors ,  Teresa P. Karjala ,  Christopher R. Eddy ,  Lonnie G. Hazlitt ,  Pak-Meng Cham ,  Sarat Munjal ,  Wallace W. Yau

    IPC: C08F255/02

    CPC classification number: C08F255/02 ,  C08F110/02 ,  C08F255/00 ,  C08F297/08 ,  C08F297/083 ,  C08L23/0815 ,  C08L51/06 ,  C08L53/00 ,  C08L2666/02 ,  C08F2500/09 ,  C08F2500/12 ,  C08F2500/20 ,  C08F2500/17 ,  C08F2500/07 ,  C08F2500/19

    Abstract: An ethylenic polymer comprising amyl groups from about 0.1 to about 2.0 units per 1000 carbon atoms as determined by Nuclear Magnetic Resonance and both a peak melting temperature, Tm, in ° C., and a heat of fusion, Hf, in J/g, as determined by DSC Crystallinity, where the numerical values of Tm and Hf correspond to the relationship Tm≧(0.2143*Hf)+79.643. An ethylenic polymer comprising at least one preparative TREF fraction that elutes at 95° C. or greater using a Preparative Temperature Rising Elution Fractionation method, where at least one preparative TREF fraction that elutes at 95° C. or greater has a gpcBR value greater than 0.05 and less than 5 as determined by gpcBR Branching Index by 3D-GPC, and where at least 5% of the ethylenic polymer elutes at a temperature of 95° C. or greater based upon the total weight of the ethylenic polymer.

    Abstract translation: 包含通过核磁共振测定的约0.1至约2.0单位/ 1000个碳原子的乙烯基聚合物，峰值熔融温度Tm，℃，熔融热，Hf / J， 通过DSC结晶度测定，其中Tm和Hf的数值对应于Tm≥（0.2143×Hf）+79.643的关系。 包含至少一种使用制备型升温洗脱分级方法在95℃或更高洗脱的制备性TREF级分的乙烯性聚合物，其中至少一种在95℃或更高洗脱的制备性TREF级分的gpcBR值大于 通过3D-GPC通过gpcBR分枝指数测定的0.05和小于5，并且其中至少5％的乙烯类聚合物在基于乙烯类聚合物的总重量的95℃或更高的温度下洗脱。

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