公开(公告)号：US20190023883A1

公开(公告)日：2019-01-24

申请号：US16066895

申请日：2017-02-22

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Mridula Kapur ,  Mehmet Demirors ,  Douglas S. Ginger ,  Philip P. Fontaine ,  Amaia Bastero ,  David Lopez

IPC: C08L23/08 ,  C08F210/16

Abstract: An ethylene/alpha-olefin copolymer composition having a density from 0.935 to 0.955 g/cc; a ratio of weight average molecular weight to number average molecular weight, Mw/Mn, of from 3 to 10; a z-average molecular weight, Mz, from 200 kg/mol to 500 kg/mol; and a PENT value of greater than 500 hours at 80° C. and 2.4 MPa; wherein when the composition is formed into a monolayer pipe the pipe has a pipe hydrostatic strength of greater than 100 hours at 20° C. and 12.0 MPa. Also provided is a pipe or pipe fitting comprising the ethylene/alpha-olefin copolymer composition.

公开(公告)号：US20180346697A1

公开(公告)日：2018-12-06

申请号：US15820083

申请日：2017-11-21

Applicant: Dow Global Technologies LLC

Inventor： Cornelis F.J. Den Doelder ,  Karl Zuercher ,  Otto J. Berbee ,  Jian Wang ,  Teresa P. Karjala

IPC: C08L23/06 ,  C08J9/00 ,  C09D123/06

CPC classification number: C08L23/06 ,  C08J9/0061 ,  C08J2323/06 ,  C08J2423/06 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/066 ,  C09D123/06

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and a second ethylene-based polymer, formed by a high pressure, free-radical polymerization process, such composition comprising the following properties: a) a melt index (I2) from 2.0 to 10 dg/min; b) a density from 0.922 to 0.935 g/cc; and wherein the second ethylene-based polymer is present in an amount from 60 to 95 weight percent, based on the sum of the weight of the first polymer and the second polymer; and wherein the second ethylene-based polymer has a density greater than, or equal to, 0.924 g/cc; and wherein the first ethylene-based polymer has a melt index less than 2.5 dg/min.

公开(公告)号：US10138362B2

公开(公告)日：2018-11-27

申请号：US15311391

申请日：2015-06-26

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Pradeep Jain ,  Mehmet Demirors ,  Douglas S. Ginger ,  Anthony J. Castelluccio ,  Mridula Kapur

IPC: C08F210/16 ,  C08L23/08 ,  B32B5/00 ,  B32B5/02 ,  B32B7/00 ,  B32B7/02 ,  B32B27/06 ,  B32B27/18 ,  B32B27/20 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  C08J5/18 ,  A61F13/514 ,  B32B27/08 ,  B32B27/12 ,  C08K3/26 ,  C08J5/00 ,  E01C13/08

Abstract: The invention provides a composition comprising a first composition, comprising at least one ethylene-based polymer, and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio I10/I2 that meets the following equation: I10/I2≥7.0−1.2×log (I2). The invention also provides a process to form a composition comprising at least two ethylene-based polymers, said process comprising the following: polymerizing ethylene, and optionally at least one comonomer, in solution, in the presence of a catalyst system comprising a metal-ligand complex of Structure I, as described herein, to form a first ethylene-based polymer; and polymerizing ethylene, and optionally at least one comonomer, in the presence of a catalyst system comprising a Ziegler/Natta catalyst, to form a second ethylene-based polymer.

公开(公告)号：US09828496B2

公开(公告)日：2017-11-28

申请号：US14889221

申请日：2014-05-21

Applicant: Dow Global Technologies LLC

Inventor： Cornelis F. J. den Doelder ,  Karl Zuercher ,  Otto J. Berbee ,  Jian Wang ,  Teresa P. Karjala

IPC: C08L23/06 ,  C09D123/06 ,  C08J9/00

CPC classification number: C08L23/06 ,  C08J9/0061 ,  C08J2323/06 ,  C08J2423/06 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/066 ,  C09D123/06

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and a second ethylene-based polymer, formed by a high pressure, free-radical polymerization process, such composition comprising the following properties: a) a melt index (12) from 2.0 to 10 dg/min; b) a density from 0.922 to 0.935 g/cc; and wherein the second ethylene-based polymer is present in an amount from 60 to 95 weight percent, based on the sum of the weight of the first polymer and the second polymer; and wherein the second ethylene-based polymer has a density greater than, or equal to, 0.924 g/cc; and wherein the first ethylene-based polymer has a melt index less than 2.5 dg/min.

公开(公告)号：US20170081444A1

公开(公告)日：2017-03-23

申请号：US15311391

申请日：2015-06-26

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Pradeep Jain ,  Mehmet Demirors ,  Douglas S. Ginger ,  Anthony J. Castelluccio ,  Mridula Babli Kapur

IPC: C08F210/16 ,  C08L23/08

CPC classification number: C08L23/0815 ,  A61F13/51401 ,  A61F13/51458 ,  A61F2013/51409 ,  B32B5/00 ,  B32B5/02 ,  B32B5/022 ,  B32B7/00 ,  B32B7/02 ,  B32B27/06 ,  B32B27/08 ,  B32B27/12 ,  B32B27/18 ,  B32B27/20 ,  B32B27/28 ,  B32B27/30 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/325 ,  B32B2255/00 ,  B32B2255/02 ,  B32B2262/00 ,  B32B2262/02 ,  B32B2262/0253 ,  B32B2270/00 ,  B32B2307/50 ,  B32B2307/514 ,  B32B2307/544 ,  B32B2307/718 ,  B32B2307/724 ,  B32B2307/726 ,  B32B2555/00 ,  C08F210/16 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/18 ,  C08J5/00 ,  C08J5/18 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2423/08 ,  C08K3/26 ,  C08K2003/265 ,  C08L23/0807 ,  C08L2203/12 ,  C08L2205/025 ,  C08L2205/16 ,  C08L2314/02 ,  C08L2314/06 ,  E01C13/08 ,  C08F4/64193 ,  C08F4/6555 ,  C08F2/06 ,  C08F2500/10 ,  C08F2500/19

Abstract: The invention provides a composition comprising a first composition, comprising at least one ethylene-based polymer, and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio I10/I2 that meets the following equation: I10/I2≧7.0−1.2×log (I2). The invention also provides a process to form a composition comprising at least two ethylene-based polymers, said process comprising the following: polymerizing ethylene, and optionally at least one comonomer, in solution, in the presence of a catalyst system comprising a metal-ligand complex of Structure I, as described herein, to form a first ethylene-based polymer; and polymerizing ethylene, and optionally at least one comonomer, in the presence of a catalyst system comprising a Ziegler/Natta catalyst, to form a second ethylene-based polymer.

公开(公告)号：US09394389B2

公开(公告)日：2016-07-19

申请号：US14434204

申请日：2013-03-12

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Cornelis F. J. den Doelder ,  Teresa P. Karjala ,  Karl Zuercher ,  Jian Wang ,  Stefan Hinrichs

IPC: C08F110/02 ,  C08L23/06 ,  C08L23/08 ,  C09D123/06 ,  C09D123/08

CPC classification number: C08F110/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/0869 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/066 ,  C09D123/06 ,  C09D123/0815 ,  C09D123/0869 ,  C08F2500/12 ,  C08F2500/11 ,  C08F4/38

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)

Abstract translation: 本发明提供一种组合物，其包含通过高压自由基聚合方法形成的第一种基于乙烯的聚合物，并且包含以下性质：a）Mw（abs）与I 2的关系：Mw（abs）

公开(公告)号：US20150299440A1

公开(公告)日：2015-10-22

申请号：US14388707

申请日：2013-05-22

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Nilesh R. Savargaonkar ,  Mehmet Demirors ,  John W. Garnett, IV

IPC: C08L23/06 ,  B32B27/32

CPC classification number: C08L23/06 ,  B29C47/0026 ,  B29C47/8825 ,  B29C47/92 ,  B29C2947/92704 ,  B29C2947/92714 ,  B32B1/02 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  B32B2250/242 ,  B32B2270/00 ,  B32B2307/4026 ,  B32B2307/518 ,  B32B2439/00 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/066 ,  C08L2207/07 ,  C08L2314/06

Abstract: The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films according to the present invention comprises the melt blending product of: (a) from 0.5 to 4 percent by weight of a low density polyethylene having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) 90 percent or greater by weight of a linear low density polyethylene composition has a density in the range of 0.900 to 0.935 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.5 to 4.5, a melt index (I2) in the range of 0.1 to 5 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 3, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition, and a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more antioxidants.

Abstract translation: 本发明提供了适用于吹塑薄膜的聚乙烯共混组合物和由其制成的薄膜。 适用于本发明吹塑薄膜的聚乙烯共混物组合物包括熔融共混产物：（a）0.5-4重量％的密度为0.915-0.935g / cm3的低密度聚乙烯 ，并且熔体指数（I 2）在大于0.8至小于或等于5g / 10分钟的范围内，分子量分布（Mw / Mn）在6至10的范围内; （b）线性低密度聚乙烯组合物的90重量％以上的密度范围为0.900〜0.935g / cm 3，分子量分布（Mw / Mn）为1.5〜4.5，熔体指数 （I 2）在0.1至5g / 10分钟的范围内，分子量分布（Mz / Mw）在小于3的范围内，乙烯基不饱和度小于0.1个乙烯基，每千个碳原子存在于所述 组成和零剪切粘度比（ZSVR）在1至小于2的范围内; （c）任选的基于水滑石的中和剂; （d）任选的一种或多种成核剂; （e）和任选的一种或多种抗氧化剂。

公开(公告)号：US20150108127A1

公开(公告)日：2015-04-23

申请号：US14388759

申请日：2013-05-22

Applicant: Dow Global Technologies LLC

Inventor： Jian Wang ,  Nilesh R. Savargaonkar ,  Mehmet Demirors

IPC: C08J5/18 ,  B65D1/02 ,  B29C47/00

CPC classification number: C08J5/18 ,  B29C48/0018 ,  B29K2023/0625 ,  B29L2007/008 ,  B29L2009/00 ,  B29L2031/712 ,  B65D1/0215 ,  C08J2323/06 ,  C08J2423/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2207/062 ,  C08L2314/02 ,  C08L23/06

Abstract: The instant invention provides a polyethylene blend-composition suitable for blown films, and films made therefrom. The polyethylene blend-composition suitable for blown films comprises the melt blending product of: (a) from 0.5 to 5 percent by weight of a high density polyethylene having a density in the range of from 0.950 to 0.970 g/cm3, and a melt flow rate (I2) in the range of from less than 0.5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 10 to 40, and Mz in the range of from 800,000 to 5,000,000 g/mol; (b) 90 percent or greater by weight of a linear low density polyethylene having a density in the range of from 0.910 to 0.950 g/cm3, and a melt index (I2) in the range of from 0.1 to less than or equal to 5 g/10 minutes; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; (e) and optionally one or more anti-oxidants.

Abstract translation: 本发明提供了适用于吹塑薄膜的聚乙烯共混组合物和由其制成的薄膜。 适用于吹塑薄膜的聚乙烯混合物组合物包括熔融共混产物：（a）0.5至5重量％的密度为0.950-0.970g / cm3的高密度聚乙烯和熔体流动 速率（I 2）在小于0.5g / 10分钟的范围内，分子量分布（Mw / Mn）在10至40的范围内，Mz在80万至5,000,000g / mol的范围内; （b）90重量％以上密度为0.910〜0.950g / cm 3的线性低密度聚乙烯，熔体指数（I 2）为0.1〜5重量％ g / 10分钟; （c）任选的基于水滑石的中和剂; （d）任选的一种或多种成核剂; （e）和任选的一种或多种抗氧化剂。

公开(公告)号：US09765164B2

公开(公告)日：2017-09-19

申请号：US14316877

申请日：2014-06-27

Applicant: Dow Global Technologies LLC

Inventor： David W. Kababik ,  Kathleen E. Pletcher ,  Jian Wang ,  Jason C. Brodil ,  Troy M. Tambling ,  Robert N. Reib ,  Mridula Kapur

IPC: B32B1/02 ,  C08F210/16 ,  B65D43/02 ,  B32B1/08

CPC classification number: C08F210/16 ,  B65D43/02 ,  B65D2543/00296 ,  C08F4/65925 ,  C08F210/14 ,  C08F2500/02 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/13 ,  C08F2500/19

Abstract: A linear low density polyethylene composition suitable for injection molding applications comprising less than or equal to 100 percent by weight of the units derived from ethylene, less than 35 percent by weight of units derived from one or more α-olefin comonomers, and characterized by its density, molecular weight distribution (Mw/Mn), a melt index (I2), a molecular weight distribution (Mz/Mw), vinyl unsaturation, and zero shear viscosity ratio (ZSVR). The linear low density polyethylene composition exhibits low hexane extractable levels.

公开(公告)号：US20160319053A1

公开(公告)日：2016-11-03

申请号：US15209368

申请日：2016-07-13

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Cornelis F.J. Den Doelder ,  Teresa P. Karjala ,  Karl Zuercher ,  Jian Wang ,  Stefan Hinrichs

IPC: C08F110/02 ,  C08L23/08 ,  C09D123/06 ,  C08L23/06

CPC classification number: C08F110/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/0869 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/066 ,  C09D123/06 ,  C09D123/0815 ,  C09D123/0869 ,  C08F2500/12 ,  C08F2500/11 ,  C08F4/38

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)