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    PROCESSES TO IMPROVE REACTOR STABILITY FOR THE PREPARATION OF ETHYLENE-BASED POLYMERS USING ASYMMETRICAL POLYENES
    3.
    发明申请
    PROCESSES TO IMPROVE REACTOR STABILITY FOR THE PREPARATION OF ETHYLENE-BASED POLYMERS USING ASYMMETRICAL POLYENES 有权
    使用不对称聚酯制备基于乙烯的聚合物来提高反应器稳定性的方法

    公开(公告)号：US20160304643A1

    公开(公告)日：2016-10-20

    申请号：US15101347

    申请日：2014-12-23

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

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

    IPC: C08F210/02

    CPC classification number: C08F210/02 ,  C08F2220/282 ,  C08F2220/281 ,  C08F2/38

    Abstract: The invention provides a process to form an ethylene-based polymer, said process comprising polymerizing ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated—carbonyl end” and a “C—C double bond end,” and 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; and wherein at least one chain transfer agent (CTA) is added to the polymerization, and wherein the CTA is a saturated hydrocarbon or an unsaturated hydrocarbon.

    Abstract translation: 本发明提供一种形成乙烯基聚合物的方法，所述方法包括聚合乙烯和至少一种不对称多烯，其包含“α，β不饱和羰基末端”和“C-C双键末端”，其中 在至少一种自由基引发剂的存在下进行聚合，并且其中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为 在反应区1的下游; 并且其中向所述聚合中加入至少一种链转移剂（CTA），并且其中所述CTA为饱和烃或不饱和烃。

    Inhibitor Combination for Lithium Salt-Catalyzed Transesterification Process and Method for Removing Lithium Salt
    4.
    发明申请
    Inhibitor Combination for Lithium Salt-Catalyzed Transesterification Process and Method for Removing Lithium Salt 有权
    锂盐催化酯交换反应的抑制剂组合及其脱锂方法

    公开(公告)号：US20160297736A1

    公开(公告)日：2016-10-13

    申请号：US15100759

    申请日：2014-11-21

    Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  ROHM AND HAAS COMPANY

    Inventor： Robert Wilczynski ,  Christopher R. Eddy ,  John O. Osby ,  Lan T.P. Hoang Nguyen

    IPC: C07C67/02 ,  C08F210/02 ,  C07C69/587 ,  C07C67/03

    CPC classification number: C07C67/02 ,  C07C67/03 ,  C07C69/587 ,  C08F2/38 ,  C08F210/02 ,  C08F220/68 ,  C08F2220/1891 ,  C08F2220/287

    Abstract: A process to form a composition comprising an asymmetrical polyene, the asymmetrical polyene comprising an “α,β unsaturated-carbonyl end” and a “C—C double bond end,” the process comprising: reacting an alkene- or polyene-containing alcohol with an alkyl ester of an α,β unsaturated carboxylic acid in the presence of at least the following components A) through C) to form a solution comprising an asymmetrical polyene: A) a lithium salt; B) a component selected from the group consisting of hydroquinone, an alkyl-substituted phenol, a substituted alkyl-substituted phenol, an alkyl-substituted hydroquinone, a substituted alkyl-substituted hydroquinone, and combinations thereof; and C) an N-oxyl-containing compound; wherein the “α,β unsaturated-carbonyl end” of the asymmetrical polyene is selected from the group consisting of structures a) through c), as described herein, and wherein the “C—C double bond end” of the asymmetrical polyene is selected from the group consisting of structures 1) through 17), as described herein.

    Abstract translation: 形成包含不对称多烯的组合物的方法，所述不对称多烯包含“α，β不饱和羰基端”和“C-C双键末端”，该方法包括：使含烯烃或含多烯醇与 在至少以下组分A）至C）的存在下，α，β不饱和羧酸的烷基酯形成包含不对称多烯的溶液：A）锂盐; B）选自氢醌，烷基取代的酚，取代的烷基取代的酚，烷基取代的氢醌，取代的烷基取代的氢醌及其组合的组分; 和C）含有N-氧基的化合物; 其中不对称多烯的“α，β不饱和羰基端”选自如本文所述的结构a）至c），并且其中选择不对称多烯的“C-C双键末端” 来自由结构1）至17）组成的组，如本文所述。

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