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公开(公告)号：US20240209193A1
公开(公告)日：2024-06-27
申请号：US17597978
申请日：2020-08-19
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.
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公开(公告)号：US09873958B2
公开(公告)日：2018-01-23
申请号：US15437245
申请日：2017-02-20
发明人： Randy E. Pepper , Mridula Babli Kapur , Gert J. Claasen , Edward N. Knickerbocker , Nathan J. Wiker , William J. Michie, Jr. , Mark B. Davis
CPC分类号： D01F6/30 , C08F210/02 , C08L23/04 , C08L23/0815 , C08L2205/02 , C08L2205/16 , C08L2314/06 , D01D5/08 , D01D5/10 , D01D5/12 , D01D10/02 , D01F6/04 , D04H1/56 , D04H3/007 , D04H3/16 , Y10T428/249921 , Y10T442/30 , Y10T442/3976 , Y10T442/60 , C08L2666/06
摘要： Fibers made a polyethylene composition, and method of making the same. The polyethylene composition comprises less than or equal to 100 percent by weight of the units derived from ethylene and less than 20 percent by weight of units derived from one or more α-olefin comonomers; wherein said polyethylene composition has a density in the range of 0.930 to 0.960 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.5, a melt index (I2) in the range of 1 to 300 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, a shear viscosity in the range of 20 to 250 Pascal-s at 3000 s−1 shear rate measured at 190° C., vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of said composition; and wherein the fiber is a monocomponent meltspun fiber.
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3.发明申请公开(公告)号：US20200277474A1
公开(公告)日：2020-09-03
申请号：US16064267
申请日：2016-12-15
摘要： Polyethylene formulations, articles produced therefrom, and methods of making articles are provided. The polyethylene formulation includes a multimodal high density polyethylene (HDPE) composition, and 1 ppm to 10,000 ppm of a nucleating agent, wherein the multimodal HDPE composition comprises a density of 0.940 g/cm3 to 0.970 g/cm3 when measured according to ASTM D792, and a melt index (I2) of 0.01 g/10 min. to 1.0 g/10 min. when measured according to ASTM D1238 at 190° C. and a 2.16 kg load, and wherein the multimodal HDPE composition comprises an infrared cumulative detector fraction (CDFIR) of greater than 0.27 and an infrared cumulative detector fraction to light scattering cumulative detector fraction ratio (CDFIR/CDFLS) from 0.7 to 2.0.
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公开(公告)号：US20170342244A1
公开(公告)日：2017-11-30
申请号：US15534383
申请日：2015-11-05
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.
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公开(公告)号：US20170081444A1
公开(公告)日：2017-03-23
申请号：US15311391
申请日：2015-06-26
发明人： Jian Wang , Pradeep Jain , Mehmet Demirors , Douglas S. Ginger , Anthony J. Castelluccio , Mridula Babli Kapur
IPC分类号： C08F210/16 , C08L23/08
CPC分类号： 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
摘要： 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.
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公开(公告)号：US20220169762A1
公开(公告)日：2022-06-02
申请号：US17600658
申请日：2020-04-28
发明人： Shadid Askar , Peter S. Martin , Bo Liu , John F. Szul , Roger L. Kuhlman , Mridula Babli Kapur
IPC分类号： C08F210/16 , B01J8/44 , C07F17/00
摘要： A bimodal poly(ethylene-co-1-alkene) copolymer comprising a higher molecular weight poly(ethylene-co-1-alkene) copolymer component and a lower molecular weight poly(ethylene-co-1-alkene) copolymer component. The copolymer is characterized by a unique combination of features comprising, or reflected in, its density; molecular weight distributions; component weight fraction amount; viscoelastic properties; and environmental stress-cracking resistance. Additional inventive embodiments include a method of making the copolymer, a formulation comprising the copolymer and at least one additive that is different than the copolymer, a method of making a manufactured article from the copolymer or formulation; the manufactured article made thereby, and use of the manufactured article.
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公开(公告)号：US10370527B2
公开(公告)日：2019-08-06
申请号：US15534383
申请日：2015-11-05
IPC分类号： C08L23/06
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.
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公开(公告)号：US20170101494A1
公开(公告)日：2017-04-13
申请号：US15311299
申请日：2015-06-29
发明人： Philip P. Fontaine , Jerzy Klosin , Endre Szuromi , Carl N. Iverson , Zach T. Rickaway , Andrew J. Young , Susan G. Brown , Ruth Figueroa , Mehmet Demirors , Mridula Babli Kapur
IPC分类号： C08F210/16
摘要： The invention provides a process to form an olefin-based polymer, said process comprising polymerizing at least one olefin in the presence of at least one catalyst system comprising the reaction product of the following: A) at least one cocatalyst; and B) a procatalyst comprising a metal-ligand complex of Formula (I), as described herein: (Formula I).
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公开(公告)号：US20220162358A1
公开(公告)日：2022-05-26
申请号：US17600975
申请日：2020-04-28
发明人： Shadid Askar , Peter S. Martin , Bo Liu , John F. Szul , Roger L. Kuhlman , Mridula Babli Kapur
IPC分类号： C08F210/16
摘要： A bimodal poly(ethylene-co-1-alkene) copolymer comprising a higher molecular weight poly(ethylene-co-1-alkene) copolymer component and a lower molecular weight poly(ethylene-co-1-alkene) copolymer component. The copolymer is characterized by a unique combination of features comprising, or reflected in, its density; molecular weight distributions; component weight fraction amount; and viscoelastic properties; and at least one of environmental stress-cracking resistance and resin swell. Additional inventive embodiments include a method of making the copolymer, a formulation comprising the copolymer and at least one additive that is different than the copolymer, a method of making a manufactured article from the copolymer or formulation; the manufactured article made thereby, and use of the manufactured article.
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公开(公告)号：US11046841B2
公开(公告)日：2021-06-29
申请号：US16064267
申请日：2016-12-15
摘要： Polyethylene formulations, articles produced therefrom, and methods of making articles are provided. The polyethylene formulation includes a multimodal high density polyethylene (HDPE) composition, and 1 ppm to 10,000 ppm of a nucleating agent, wherein the multimodal HDPE composition comprises a density of 0.940 g/cm3 to 0.970 g/cm3 when measured according to ASTM D792, and a melt index (I2) of 0.01 g/10 min. to 1.0 g/10 min. when measured according to ASTM D1238 at 190° C. and a 2.16 kg load, and wherein the multimodal HDPE composition comprises an infrared cumulative detector fraction (CDFIR) of greater than 0.27 and an infrared cumulative detector fraction to light scattering cumulative detector fraction ratio (CDFIR/CDFLS) from 0.7 to 2.0.
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