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公开(公告)号：US10125247B2
公开(公告)日：2018-11-13
申请号：US15472981
申请日：2017-03-29
摘要： A polyethylene composition including the product of the combination of at least one copolymer made from units derived from at least 85 wt % ethylene and a C3 to C10 α-olefin and from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer is provided.
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公开(公告)号：US20170233507A1
公开(公告)日：2017-08-17
申请号：US15504544
申请日：2015-08-14
发明人： Wen Li , Steven A. Best , Robert J. Wittenbrink
IPC分类号： C08F110/02 , C08L23/06 , C08J5/18
CPC分类号： C08F110/02 , C08J5/18 , C08J2323/06 , C08J2423/06 , C08L23/04 , C08L23/06 , C08L23/16 , C08L2203/16 , C08L2205/025 , C08F2500/12 , C08F2500/11 , C08F2500/26
摘要： Disclosed are polyethylene polymers with good melt strength that can provide enhanced properties for compositions including such polyethylene polymers and films made therefrom.
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公开(公告)号：US10927205B2
公开(公告)日：2021-02-23
申请号：US16287362
申请日：2019-02-27
发明人： Kevin A. Stevens , Wen Li
IPC分类号： C08F210/16 , C08F2/34 , B01J8/18 , B01J8/00 , C08F2/38
摘要： The present disclosure provides processes for polymerizing olefin(s). Methods can include contacting a first composition and a second composition in a line to form a third composition. The first composition can include a contact product of a first catalyst, a second catalyst, a support, a first activator, a mineral oil. The second composition can include a contact product of an activator, a diluent, and the first catalyst or the second catalyst. Methods can include introducing the third composition from the line into a gas-phase fluidized bed reactor, introducing a condensing agent to the line and/or the reactor, exposing the third composition to polymerization conditions, and/or obtaining a polyolefin. Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.
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公开(公告)号：US20200071437A1
公开(公告)日：2020-03-05
申请号：US16287362
申请日：2019-02-27
发明人： Kevin A. Stevens , Wen Li
IPC分类号： C08F210/16 , B01J8/18 , B01J8/00
摘要： The present disclosure provides processes for polymerizing olefin(s). Methods can include contacting a first composition and a second composition in a line to form a third composition. The first composition can include a contact product of a first catalyst, a second catalyst, a support, a first activator, a mineral oil. The second composition can include a contact product of an activator, a diluent, and the first catalyst or the second catalyst. Methods can include introducing the third composition from the line into a gas-phase fluidized bed reactor, introducing a condensing agent to the line and/or the reactor, exposing the third composition to polymerization conditions, and/or obtaining a polyolefin. Polyethylene compositions including at least 65 wt % ethylene derived units, based upon the total weight of the polyethylene composition, are provided.
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公开(公告)号：US20180265657A1
公开(公告)日：2018-09-20
申请号：US15775752
申请日：2016-12-20
发明人： Wen Li , Xiao-Chuan Wang
CPC分类号： C08J5/18 , B29C48/0019 , B29C48/10 , B29C48/21 , B29C48/25 , C08J2323/06 , C08J2323/08 , C08J2423/06 , C08J2423/08 , C08L23/06 , C08L23/08 , C08L23/0815
摘要： Provided are films such as high-stalk films made from polyethylene polymers, and methods for making these films. Such films preferably have at least one of the following properties: (a) MD 1% Secant Modulus of less than 400 MPa, (b) Elmendorf Tear MD of at least 100 g/mil, (c) Dart drop of at least 200 g/mil, (d) puncture resistance break energy of at least 120 mJ/μm, (e) TD shrink at 150° C. of at least 40% or at least 30% at 120° C.; and (f) haze value of less than 40%.
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公开(公告)号：US10954328B2
公开(公告)日：2021-03-23
申请号：US16191375
申请日：2018-11-14
IPC分类号： C08F4/76 , C08F4/64 , C08F210/00 , C08F210/16 , C08F2/14 , C08F4/659
摘要： Polymerization processes to produce polyolefin polymers, for example, polyethylene polymers, from catalyst systems comprising one or more olefin polymerization catalysts and at least one activator are provided. The polyolefin polymers may have a Broad Orthogonal Composition Distribution (BOCD).
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公开(公告)号：US10563027B2
公开(公告)日：2020-02-18
申请号：US16054827
申请日：2018-08-03
发明人： Jianya Cheng , Adriana S. Silva , Peijun Jiang , Wen Li , Alexander I. Norman
IPC分类号： C08L23/06 , C08J5/18 , B29C48/10 , B29C48/00 , B29C48/88 , C08L23/08 , C08F210/18 , B29K9/00 , B29K409/00 , C08F4/659 , C08F4/6592
摘要： A method of forming a finished film comprising extruding a molten polyethylene comprising a diene terpolymer modifier through a die opening to form a film, wherein the diene-terpolymer modifier is a terpolymer comprising ethylene-derived units, C3 to C10 α-olefin derived units, and diene-derived units; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to allow relaxation of the molten polyethylene prior to solidification and/or crystallization upon cooling; and isolating a finished film therefrom. Desirably, the polyethylene is a linear low density polyethylene, and the die and cooling is suitable for forming a blown film.
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公开(公告)号：US20190135996A1
公开(公告)日：2019-05-09
申请号：US16054827
申请日：2018-08-03
发明人： Jianya Cheng , Adriana S. Silva , Peijun Jiang , Wen Li , Alexander I. Norman
IPC分类号： C08J5/18 , C08L23/08 , C08L23/06 , C08F210/18
CPC分类号： B29C48/022 , B29C48/10 , B29C48/913 , B29K2009/00 , B29K2023/06 , B29K2409/00 , C08F4/65908 , C08F4/65927 , C08F210/18 , C08J5/18 , C08J2323/06 , C08J2447/00 , C08L23/06 , C08L23/0815 , C08L2203/16 , C08L2205/025 , C08F210/14 , C08F236/20 , C08F2500/12 , C08F2500/17 , C08F2500/26
摘要： A method of forming a finished film comprising extruding a molten polyethylene comprising a diene terpolymer modifier through a die opening to form a film, wherein the diene-terpolymer modifier is a terpolymer comprising ethylene-derived units, C3 to C10 α-olefin derived units, and diene-derived units; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to allow relaxation of the molten polyethylene prior to solidification and/or crystallization upon cooling; and isolating a finished film therefrom. Desirably, the polyethylene is a linear low density polyethylene, and the die and cooling is suitable for forming a blown film.
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9.发明申请公开(公告)号：US20190134876A1
公开(公告)日：2019-05-09
申请号：US16112321
申请日：2018-08-24
发明人： Periagaram S. Ravishankar , Jianya Cheng , Adriana S. Silva , Wen Li , Abelhadi Sahnoune , Arturo Leyva , Alexander I. Norman
CPC分类号： B29C48/10 , B29C48/9125 , B29C48/913 , B29C55/28 , B29K2023/06 , B29K2023/38 , B29K2105/0085 , B29K2105/0088 , B29K2995/0063 , B29K2995/0077 , B29L2007/00 , C08J5/18 , C08J9/00 , C08J2323/08 , C08J2423/08 , C08F210/18 , C08F210/06 , C08F236/20 , C08F2500/25 , C08F2500/26 , C08F210/16 , C08F210/08 , C08F2500/12 , C08F2500/08 , C08F210/14
摘要： A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.
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公开(公告)号：US20170081437A1
公开(公告)日：2017-03-23
申请号：US15228343
申请日：2016-08-04
发明人： Etienne R. H. Lernoux , Wen Li
IPC分类号： C08F110/02 , C08J5/18
CPC分类号： C08F110/02 , C08F210/16 , C08J5/18 , C08J2323/06 , C08J2323/08 , C08F210/14 , C08F2500/18 , C08F2500/12 , C08F2500/08 , C08F2500/09 , C08F2500/10 , C08F2500/11 , C08F2500/26
摘要： Metallocene-catalyzed polyethylene polymers and articles made therefrom are provided.
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