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    POLYETHYLENE PIPES
    1.
    发明申请
    POLYETHYLENE PIPES 审中-公开
    聚乙烯管

    公开(公告)号：WO2006132747A1

    公开(公告)日：2006-12-14

    申请号：PCT/US2006/017537

    申请日：2006-05-08

    申请人： UNIVATION TECHNOLOGIES, LLC ,  MURE, Cliff, R. ,  LIU, Han-tai

    发明人： MURE, Cliff, R. ,  LIU, Han-tai

    IPC分类号： C08L23/04 ,  C08K3/00

    CPC分类号： B29C47/0004 ,  B29C35/16 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/92 ,  B29C2947/9219 ,  B29C2947/922 ,  B29C2947/92209 ,  B29C2947/92676 ,  B29C2947/92695 ,  B29C2947/92704 ,  B29K2023/06 ,  B29K2023/065 ,  B29K2105/16 ,  B29L2023/22 ,  C08L23/04 ,  C08L23/06 ,  C08L2205/02 ,  F16L9/127 ,  Y10T428/139 ,  C08L2666/06

    摘要： A pipe composition comprising, in one embodiment, from 80 to 99 wt% of a high density polyethylene by weight of the composition and from 1 to 20 wt% of a filler by weight of the composition; the polyethylene having a density of from 0.940 to 0.980 g/cm, and an I21 of from 2 to 18 dg/min; characterized in that the pipe composition extrudes at an advantageously low melt temperature and at an advantageously high specific throughput. Also provided is a method of forming a pipe comprising in embodiment providing a filler composition comprising from 5 to 50 wt% of a filler and from 95 to 50 wt% of a low density polyethylene and from 0 to 3 wt% of one or more stabilizers; then melt blending the filler composition and a high density polyethylene having a density of from 0.940 to 0.980 g/cm, and an I21 of from 2 to 18 dg/min to a target drop temperature of from 1650C to 1850C to form a pipe composition, melt blending such that the pipe composition comprises from 1 to 20 wt% of the filler by weight of the pipe composition; and extruding the pipe composition to form a pipe.

    摘要翻译： 一种管道组合物，在一个实施方案中包含80至99重量％的按组合物重量计的高密度聚乙烯和1至20重量％的组合物重量的填料; 密度为0.940〜0.980g / cm 2，I21为2〜18dg / min的聚乙烯; 其特征在于管组合物以有利的低熔融温度和有利地高的特定生产量挤出。 还提供了一种形成管子的方法，其包括在实施方案中提供填料组合物，其包含5至50重量％的填料和95至50重量％的低密度聚乙烯和0至3重量％的一种或多种稳定剂 ; 然后将填料组合物和密度为0.940至0.980g / cm 2，I21为2至18dg / min的高密度聚乙烯熔融共混至目标液滴温度为1650℃至1850℃，以形成管道组合物， 熔融共混，使得管道组合物占管道组合物重量的1至20重量％的填料; 并挤出管道组合物以形成管道。

    POLYMERIZATION CATALYSTS WITH IMPROVED ETHYLENE ENCHAINMENT
    4.
    发明申请
    POLYMERIZATION CATALYSTS WITH IMPROVED ETHYLENE ENCHAINMENT 审中-公开
    聚合催化剂与改进乙烯ENCHAINMENT

    公开(公告)号：WO2018064044A2

    公开(公告)日：2018-04-05

    申请号：PCT/US2017/053451

    申请日：2017-09-26

    申请人： UNIVATION TECHNOLOGIES, LLC

    发明人： KUHLMAN, Roger, L. ,  MCDOUGAL, Mahsa ,  BOLLER, Timothy, M. ,  HARLAN, C., Jeff ,  LYNN, Timothy, R. ,  MURE, Cliff, R. ,  SZUL, John, F. ,  ZILKER, Daniel, P., JR.

    IPC分类号： C08F210/16 ,  C08F4/6592

    摘要： Embodiments of the present disclosure directed towards polymerization catalysts having improved ethylene enchainment. As an example, the present disclosure provides a polymerization catalyst having improved ethylene enchainment, the polymerization catalyst comprising a zirconocene catalyst of Formula (I) where R 1 is a C 1 to C 20 alkyl, aryl or aralkyl group, wherein R 2 is an C 1 to C 20 alkyl, aryl or aralkyl group, and where R 3 is a C 1 to C 20 alkyl or a hydrogen, and where each X is independently a halide, C 1 to C 20 alkyl, aralkyl group or hydrogen.

    摘要翻译： 本公开的实施方案涉及具有改进的乙烯结合的聚合催化剂。 作为示例，本公开提供了具有改进的乙烯enchainment的聚合催化剂，包括式（I）的茂锆催化剂的聚合催化剂，其中R <子> 1 为C <子> 1 到 C20烷基，芳基或芳烷基，其中R2C1是C1-C20烷基，芳基 或芳烷基，并且其中R 3是C 1〜C 20烷基或氢，并且其中每个X独立地是卤素， C 1〜C 20烷基，芳烷基或氢。

    POLYOLEFIN FILM WITH IMPROVED TOUGHNESS
    5.
    发明申请
    POLYOLEFIN FILM WITH IMPROVED TOUGHNESS 审中-公开
    具有改善的韧性的聚烯烃薄膜

    公开(公告)号：WO2017132092A1

    公开(公告)日：2017-08-03

    申请号：PCT/US2017/014556

    申请日：2017-01-23

    申请人： UNIVATION TECHNOLOGIES, LLC

    发明人： MURE, Cliff, R. ,  LI, Dongming ,  KOPP, Barbara, J. ,  GOODE, Mark, G.

    IPC分类号： C08J5/18 ,  C08F10/02 ,  C08F10/08 ,  C08F10/14 ,  C08L23/08

    CPC分类号： C08J5/18 ,  C08J2323/08 ,  C08F210/16 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/21 ,  C08F2500/26 ,  C08F210/14

    摘要： A film formed from a polyethylene copolymer using a reduced chromium oxide catalyst, ethylene monomers and a co-monomer selected from butene monomers or 1-hexene, where the polyethylene copolymer has a density in the range of from about 0.935 to about 0.950 g/cm 3 and an I 21 /I 5 in a range of about 18.0 to about 30.0. The film formed from the polyethylene copolymer has a dart drop impact (g/μm) that significantly greater as compared to a film of the polyethylene copolymer formed using a silyl chromate catalyst in place of the reduced chromium oxide catalyst. A method of making such films is also provided.

    摘要翻译： 使用还原的氧化铬催化剂，乙烯单体和选自丁烯单体或1-己烯的共聚单体由聚乙烯共聚物形成的膜，其中聚乙烯共聚物的密度范围为 约0.935至约0.950g / cm 3和约21.0至约30.0的I 21 / I 5。 与使用甲硅烷基铬酸盐催化剂代替还原的氧化铬催化剂形成的聚乙烯共聚物膜相比，由聚乙烯共聚物形成的膜具有明显更大的落镖冲击（g /μm）。 还提供了制作这种胶片的方法。

    METHODS FOR CONTROLLING POLYMER PROPERTIES
    6.
    发明申请
    METHODS FOR CONTROLLING POLYMER PROPERTIES 审中-公开
    控制聚合物性能的方法

    公开(公告)号：WO2015076928A2

    公开(公告)日：2015-05-28

    申请号：PCT/US2014/057427

    申请日：2014-09-25

    申请人： UNIVATION TECHNOLOGIES, LLC

    发明人： GOODE, Mark, G. ,  ALEXANDRE, Francois ,  CANN, Kevin J. ,  KOPP, Barbara, J. ,  MATTHEWS, William, A. ,  MOORHOUSE, John, H. ,  MURE, Cliff, R.

    IPC分类号： C08L23/08

    CPC分类号： C08F210/16 ,  C08L23/08 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/07 ,  C08F2500/12 ,  C08F2500/13 ,  C08F4/24 ,  C08F2/34 ,  C08F4/025

    摘要： Disclosed herein are methods of controlling polymer properties in polymerization processes that use a chromium-based catalyst. An embodiment discloses a method of producing a polyolefin comprising: contacting a reaction mixture and a reduced chromium oxide catalyst in a gas-phase reactor to produce the polyolefin, wherein the reaction mixture comprises a monomer and a co-monomer; and changing a reaction temperature in the gas- phase reactor by about 1° C or more whereby a gas molar ratio of the co-monomer to the monomer is changed by about 2% or more and a co-monomer content of the polyolefin at substantially constant density is changed by about 2% or more. Additional methods and compositions are also provided.

    摘要翻译： 本文公开了在使用铬基催化剂的聚合方法中控制聚合物性质的方法。 一个实施方案公开了一种生产聚烯烃的方法，包括：使反应混合物和还原的氧化铬催化剂在气相反应器中接触以制备聚烯烃，其中反应混合物包含单体和共聚单体; 并且将气相反应器中的反应温度改变约1℃或更高，由此共聚单体与单体的气体摩尔比改变约2％以上，聚烯烃的共聚单体含量基本上 恒定密度改变约2％以上。 还提供了另外的方法和组合物。