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1. 发明公开

US20230235156A1 POLYOLEFIN COMPOSITIONS 审中-公开
公开(公告)号：US20230235156A1
公开(公告)日：2023-07-27
申请号：US18007814
申请日：2021-06-04
申请人： Dow Global Technologies LLC , PBBPolisur S.R.L.
发明人： Alexander Williamson , Shadid Askar , Joel D. Wieliczko , Cornelis F.J. Den Doelder , Mridula Kapur , Kurt F. Hirsekorn , Evelyn Auyeung , Bo Liu , Maria C. Zandueta , John P. O'Brien , Stephanie M. Whited
IPC分类号： C08L23/08 , C08L23/06
CPC分类号： C08L23/0815 , C08L23/06 , C08L2205/025 , C08L2314/02
摘要： Embodiments are directed towards polyolefin compositions including a high molecular weight polyolefin and a low molecular weight polyolefin.

2. 发明公开

US20240209193A1 BIMODAL POLYETHYLENE-BASED COMPOSITION 审中-公开
公开(公告)号：US20240209193A1
公开(公告)日：2024-06-27
申请号：US17597978
申请日：2020-08-19
申请人： Dow Global Technologies LLC
发明人： Alexander Williamson , Andrew T. Heitsch , Stephanie M. Whited , Mridula Babli Kapur
IPC分类号： C08L23/06 , C08F4/6592 , C08F10/02 , C08J5/18
CPC分类号： C08L23/06 , C08F4/6592 , C08F10/02 , C08J5/18 , C08J2323/06 , C08J2423/06 , C08L2205/24
摘要： A bimodal polyethylene-based composition that is useful for making under film extrusion conditions a film that beneficially has both decreased water vapor transmission rate and decreased haze. The composition comprises an improved design of the composition of the polyethylene blend of a higher molecular weight polyethylene polymer constituent and a lower molecular weight polyethylene polymer constituent and an effective amount of a nucleating agent. Additional embodiments include a method of making the bimodal polyethylene-based composition, a formulation comprising the bimodal polyethylene-based composition and at least one additive, a method of making a manufactured article from the bimodal polyethylene-based composition or formulation; the manufactured article made thereby, use of the bimodal polyethylene-based composition for protecting a moisture-sensitive material, and a sealed package made therefrom. A bimodal polyethylene-based composition that is useful for making under film extrusion conditions a film that beneficially has both decreased water vapor transmission rate and decreased haze. The composition comprises an improved design of the composition of the polyethylene blend of a higher molecular weight polyethylene polymer constituent and a lower molecular weight polyethylene polymer constituent and an effective amount of a nucleating agent. Additional embodiments include a method of making the bimodal polyethylene-based composition, a formulation comprising the bimodal polyethylene-based composition and at least one additive, a method of making a manufactured article from the bimodal polyethylene-based composition or formulation; the manufactured article made thereby, use of the bimodal polyethylene-based composition for protecting a moisture-sensitive material, and a sealed package made therefrom.

3. 发明申请

US20220176599A1 INJECTION MOLDED CAPS OR CLOSURES, AND METHODS THEREOF 有权
公开(公告)号：US20220176599A1
公开(公告)日：2022-06-09
申请号：US17603456
申请日：2020-05-29
申请人： Dow Global Technologies LLC
发明人： Keran Lu , Yijian Lin , Mridula Kapur , Tian Lan , Stephanie M. Whited , John L. Sugden , Siddharth Ram Athreya
IPC分类号： B29C45/00 , B29D99/00
摘要： An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising a high molecular weight component and a low molecular weight component.

4. 发明申请

US20200299491A1 Formulation Containing a High Density Polyethylene Composition and Microirrigation Drip Tapes Containing the Same 审中-公开
公开(公告)号：US20200299491A1
公开(公告)日：2020-09-24
申请号：US16768294
申请日：2018-12-11
申请人： Dow Global Technologies LLC
发明人： Stephanie M. Whited , Siddharth Ram Athreya , Mridula Kapur , Alexander Stolarz , Adrianna Velasquez
IPC分类号： C08L23/08 , F16L11/04 , A01G25/02 , A01G25/06
摘要： The present disclosure provides formulation. The formulation contains a high density polyethylene composition containing (i) a high molecular weight component including an ethylene/a-olefin copolymer, the high molecular weight component having a density from 0.924 to 0.930 g/cc and a high load melt index (121) from 0.3 to 0.9 g/10 min; and (ii) a low molecular weight component including an ethylene-based polymer selected from the group consisting of an ethylene homopolymer and an ethylene/a-olefin copolymer. The high density polyethylene composition has (a) a density from 0.950 to 0.956 g/cc; (b) a high load melt index (121) from 15 to 28 g/10 min; (c) an 121/12 of at least 85; (d) a notched constant tensile load failure time at 35% yield stress of greater than 90 hours; and (e) an environmental stress crack resistance (ESCR) F0 value, according to ASTM D1693-condition B (100% IGEPAL), of greater than 2,000 hours.

5. 发明授权

US09879105B2 Polyolefin composition and method of producing the same 有权
公开(公告)号：US09879105B2
公开(公告)日：2018-01-30
申请号：US15025366
申请日：2014-10-30
申请人： Dow Global Technologies LLC
发明人： Linfeng Chen , Stephanie M. Whited , Robert J. Jorgensen
IPC分类号： C08F210/16
CPC分类号： C08F210/16 , C08F210/14 , C08F4/6494 , C08F4/6543
摘要： The instant invention provides a polyolefin composition, a catalyst composition, and a method of producing the same. The method for polymerizing one or more polyolefins according to the present invention comprises the steps of: (1) selecting a first olefin monomer and optionally one or more alpha-olefin comonomers; (2) selecting one or more catalyst systems comprising one or more procatalysts comprising a first metal selected from the group consisting of Ti, V, Hf, Zr, and combinations or mixture two or more thereof, one or more cocatalysts comprising Al, and one or more self-limiting agents (SLA) selected from the group consisting of polyether, polyester, and combinations or mixtures thereof; wherein the ratio of said SLA to said first metal (SLA:first metal) is from 0.1:1 to 30:1; (3) polymerizing said first olefin monomer and optionally one or more alpha-olefin comonomers in the presence of said one or more catalyst systems via a slurry polymerization process or gas-phase polymerization process in one or more reactors; (4) thereby producing one or more olefin-based polymers; (5) wherein said catalyst system has a loss of least 85 percent of catalyst activity when the temperature is increased from 85 to 110° C.

6. 发明申请

US20160237266A1 High-Density Polyethylene Compositions, Method of Making the Same, Injection Molded Articles Made Therefrom, and Method of Making Such Articles 审中-公开
标题翻译：高密度聚乙烯组合物，其制造方法，由此制成的注射成型制品及其制造方法
公开(公告)号：US20160237266A1
公开(公告)日：2016-08-18
申请号：US15135044
申请日：2016-04-21
申请人： Dow Global Technologies LLC
发明人： William J. Michie, JR. , Stephanie M. Whited , Nathan J. Wiker , Dale M. Elley-Bristow
IPC分类号： C08L23/08 , B29C43/02 , B65D41/24 , B29C49/00 , B29C45/00 , C08L23/06 , B29C43/00
CPC分类号： C08L23/08 , B29C43/003 , B29C43/02 , B29C43/52 , B29C45/0001 , B29C49/0005 , B29K2023/065 , B29K2105/0094 , B29K2995/0063 , B29L2031/565 , B65D41/24 , C08F210/16 , C08L23/06 , C08L2205/02 , C08L2207/062 , H01B3/441 , C08F2/001 , C08F2/34 , C08L2666/06 , C08F210/14 , C08F2500/08 , C08F2500/12 , C08F2500/01 , C08F2500/13 , C08F2500/18 , C08F2500/07 , C08F2500/02
摘要： The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm3, and a melt index (I21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3.
摘要翻译：本发明是高密度聚乙烯组合物，其制造方法，由其制成的注塑制品及其制造方法。本发明的高密度聚乙烯组合物包括第一组分和第二组分。第一组分是密度在0.920至0.946g / cm 3范围内且熔体指数（I 21.6）在1至15g / 10分钟范围内的高分子量乙烯α-烯烃共聚物。第二组分是密度在0.965至0.980g / cm 3范围内的熔融指数（I 2）在30至1500g / 10分钟范围内的低分子量乙烯聚合物。高密度聚乙烯组合物的熔体指数（I 2）至少为1，密度在0.950至0.960g / cm3的范围内。

7. 发明授权

US11208546B2 Ethylene-based resins for closure applications 有权
公开(公告)号：US11208546B2
公开(公告)日：2021-12-28
申请号：US15328312
申请日：2015-08-25
申请人： Dow Global Technologies LLC
发明人： Mridula Kapur , Stephanie M. Whited , Mark T. Jablonka
IPC分类号： C08L23/08 , C08L23/04 , B65D53/00 , C08L23/06
摘要： An ethylene-based resin comprising a high molecular weight component and a low molecular weight component, wherein the high molecular weight component comprises an ethylene/alpha-olefin copolymer or ethylene homopolymer, and has a density ranging from 0.940 g/cc to 0.960 g/cc, and a high load melt index (I21.6) ranging from 4 g/10 min to 15 g/10 min, and wherein the ethylene-based resin has: an overall density ranging from greater than 0.955 to less than or equal to 0.970 g/cc, an overall melt index (I2.16) ranging from 0.5 g/10 min to 7 g/10 min, and less than 0.2 vinyls per 1000 carbon atoms.

8. 发明授权

US10844202B2 High-density polyethylene compositions, method of making the same, injection molded articles made therefrom, and method of making such articles 有权
公开(公告)号：US10844202B2
公开(公告)日：2020-11-24
申请号：US15135044
申请日：2016-04-21
申请人： Dow Global Technologies LLC
发明人： William J. Michie, Jr. , Stephanie M. Whited , Nathan J. Wiker , Dale M. Elley-Bristow
IPC分类号： C08L23/08 , B29C43/02 , B65D41/24 , B29C49/00 , B29C45/00 , C08L23/06 , B29C43/00 , C08F210/16 , H01B3/44 , B29C43/52 , B29K23/00 , B29K105/00 , B29L31/56
CPC分类号： C08L23/08 , B29C43/003 , B29C43/02 , B29C45/0001 , B29C49/0005 , B65D41/24 , C08F210/16 , C08L23/06 , H01B3/441 , B29C43/52 , B29K2023/065 , B29K2105/0094 , B29K2995/0063 , B29L2031/565 , C08L2205/02 , C08L2207/062 , C08F210/16 , C08F2/001 , C08F210/16 , C08F2/34 , C08L23/06 , C08L2666/06 , C08F210/16 , C08F210/14 , C08F2500/08 , C08F2500/12 , C08F2500/01 , C08F2500/13 , C08F2500/18 , C08F210/16 , C08F210/14 , C08F2500/07 , C08F2500/12 , C08F2500/02 , C08F2500/13 , C08F2500/18
摘要： The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm3, and a melt index (I21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm3, and a melt index (I2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I2) of at least 1, a density in the range of 0.950 to 0.960 g/cm3.

9. 发明申请

US20170342244A1 POLYETHYLENE COMPOSITIONS HAVING LIVING HINGE PROPERTIES 审中-公开
公开(公告)号：US20170342244A1
公开(公告)日：2017-11-30
申请号：US15534383
申请日：2015-11-05
申请人： Dow Global Technologies LLC
发明人： Stephanie M. Whited , Mridula Babli Kapur , Yijian Lin
IPC分类号： C08L23/06
CPC分类号： C08L23/06 , C08L2205/025 , C08L2207/062
摘要： A polyethylene composition suitable for use in a living hinge component, the composition comprising a first ethylene-based polymer component, the first ethylene-based polymer component has a density of from 0.91.5 g/cc to less than 0.940 g/cc. and a melt index, I2.16, of less than 5 g/10 min. and a second ethylene-based polymer component, wherein the composition has an overall density of from 0.945 g/cc to 0.960 g/cc and an overall melt index, I2.16, of from 5 g/10 min to 20 g/10 min.

10. 发明申请

US20160340453A1 A POLYOLEFIN COMPOSITION AND METHOD OF PRODUCING THE SAME 有权
标题翻译：聚烯烃组合物及其制造方法
公开(公告)号：US20160340453A1
公开(公告)日：2016-11-24
申请号：US15025366
申请日：2014-10-30
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： Linfeng Chen , Stephanie M. Whited , Robert J. Jorgensen
IPC分类号： C08F210/16
CPC分类号： C08F210/16 , C08F210/14 , C08F4/6494 , C08F4/6543
摘要： The instant invention provides a polyolefin composition, a catalyst composition, and a method of producing the same. The method for polymerizing one or more polyolefins according to the present invention comprises the steps of: (1) selecting a first olefin monomer and optionally one or more alpha-olefin comonomers; (2) selecting one or more catalyst systems comprising one or more procatalysts comprising a first metal selected from the group consisting of Ti, V, Hf, Zr, and combinations or mixture two or more thereof, one or more cocatalysts comprising Al, and one or more self-limiting agents (SLA) selected from the group consisting of polyether, polyester, and combinations or mixtures thereof; wherein the ratio of said SLA to said first metal (SLA:first metal) is from 0.1:1 to 30:1; (3) polymerizing said first olefin monomer and optionally one or more alpha-olefin comonomers in the presence of said one or more catalyst systems via a slurry polymerization process or gas-phase polymerization process in one or more reactors; (4) thereby producing one or more olefin-based polymers; (5) wherein said catalyst system has a loss of least 85 percent of catalyst activity when the temperature is increased from 85 to 110° C.
摘要翻译：本发明提供一种聚烯烃组合物，催化剂组合物及其制备方法。根据本发明的聚合一种或多种聚烯烃的方法包括以下步骤：（1）选择第一烯烃单体和任选的一种或多种α-烯烃共聚单体; （2）选择一种或多种催化剂体系，其包含一种或多种前催化剂，其包含选自Ti，V，Hf，Zr的第一金属，以及其组合或混合物两种或多种，一种或多种包含Al的助催化剂和一种或更多的选自聚醚，聚酯及其组合或混合物的自限制剂（SLA）; 其中所述SLA与所述第一金属（SLA：第一金属）的比例为0.1:1至30:1; （3）通过在一个或多个反应器中的淤浆聚合方法或气相聚合方法在所述一种或多种催化剂体系的存在下将所述第一烯烃单体和任选的一种或多种α-烯烃共聚单体聚合; （4），从而制备一种或多种烯烃基聚合物; （5）其中当温度从85℃升至110℃时，所述催化剂体系具有至少85％的催化剂活性损耗。

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