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公开(公告)号：US20200369841A1
公开(公告)日：2020-11-26
申请号：US16341549
申请日：2017-10-04
摘要： Provided are oriented films comprising linear low density polyethylene polymer and having improved balance of properties including improved machine direction tear strength. The oriented polymer film has at least one layer comprising 50 to 100 wt. % of an ethylene-based polymer. The MDO polymer film has a normalized MD Elmendorf Tear (ASTM D-1922) of at least 40 g/μm. In certain embodiments, the MDO polymer film surprisingly does not tear when MD Elmendorf Tear is measured according to ASTM D-1922.
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公开(公告)号：US11629245B2
公开(公告)日：2023-04-18
申请号：US17056333
申请日：2019-06-26
IPC分类号： H01B7/02 , C08L23/08 , B29C48/154 , B29C48/00 , B29C48/06 , B29C48/91 , B29B7/90 , B29C35/08 , H01B3/44 , H01B13/14 , B29L31/34 , H01B7/00
摘要： Polyethylene compositions described herein have a density from about 0.900 g/cm3 to about 0.950 g/cm3, a MI (I2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I21/I2) from about 25 to about 80, an Mz greater than or equal to about 150,000 g/mol, and either an Mz/Mn ratio greater than or equal to about 8.0, an Mz/Mw ratio greater than or equal to about 2.4, or an (I2*Mz/Mn) from about 3 to about 100. The polyethylene compositions are useful in wire and cable, tape, and filament applications, and could be produced using a gas phase or slurry phase, preferably gas phase, polymerization process.
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公开(公告)号：US20200279671A1
公开(公告)日：2020-09-03
申请号：US16646459
申请日：2018-07-17
发明人： Antonios K. Doufas , James M. Farley , Bruce J. Savatsky , Richard E. Pequeno , Giriprasath Gururajan , Nicolas M. De Ketelaere
摘要： A bimodal polyethylene is provided. The bimodal polyethylene may include a high molecular weight portion having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol and a low molecular weight portion having a Mw of 10,000 g/mol to 80,000 g/mol. Polymer extrudates, such as cable-coatings and/or wire-coatings and films, including the bimodal polyethylene as well as methods of making the polymer extrudates are also provided.
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公开(公告)号：US11302459B2
公开(公告)日：2022-04-12
申请号：US16646459
申请日：2018-07-17
发明人： Antonios K. Doufas , James M. Farley , Bruce J. Savatsky , Richard E. Pequeno , Giriprasath Gururajan , Nicolas M. De Ketelaere
IPC分类号： H01B3/44 , B29C48/00 , B29C48/06 , B29C48/08 , C08F210/02 , C08J5/18 , H01B13/14 , B29L7/00 , B29L31/34
摘要： A bimodal polyethylene is provided. The bimodal polyethylene may include a high molecular weight portion having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol and a low molecular weight portion having a Mw of 10,000 g/mol to 80,000 g/mol. Polymer extrudates, such as cable-coatings and/or wire-coatings and films, including the bimodal polyethylene as well as methods of making the polymer extrudates are also provided.
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公开(公告)号：US20210309842A1
公开(公告)日：2021-10-07
申请号：US17056333
申请日：2019-06-26
IPC分类号： C08L23/08 , H01B3/44 , H01B13/14 , B29C48/00 , B29C48/06 , B29C48/154 , B29C48/91 , B29C35/08 , B29B7/90
摘要： Polyethylene compositions, having a density from about 0.900 g/cm3 to about 0.950 g/cm3, a MI (I2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I21/I2) from about 25 to about 80, an Mz greater than or equal to about 150,000 g/mol, and either an Mz/Mn ratio greater than or equal to about 8.0, an Mz/Mw ratio greater than or equal to about 2.4, or an (I2*Mz/Mn) from about 3 to about 100, are provided. The polyethylene compositions are useful in wire and cable, tape, and filament applications. Methods for producing the same are also provided.
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公开(公告)号：US11718719B2
公开(公告)日：2023-08-08
申请号：US16341549
申请日：2017-10-04
CPC分类号： C08J5/18 , B29C48/0018 , C08L23/06 , B29C2948/92152 , B29C2948/92266 , B29K2995/005 , B29K2995/0089 , C08J2323/06 , C08L2207/066
摘要： Provided are oriented films comprising linear low density polyethylene polymer and having improved balance of properties including improved machine direction tear strength. The oriented polymer film has at least one layer comprising 50 to 100 wt. % of an ethylene-based polymer. The MDO polymer film has a normalized MD Elmendorf Tear (ASTM D-1922) of at least 40 g/μm. In certain embodiments, the MDO polymer film surprisingly does not tear when MD Elmendorf Tear is measured according to ASTM D-1922.
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公开(公告)号：US11299607B2
公开(公告)日：2022-04-12
申请号：US16082026
申请日：2017-02-08
摘要： Sheets made from metallocene-catalyzed polyethylene polymers, optionally, with other polymers, are disclosed.
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公开(公告)号：US20200291211A1
公开(公告)日：2020-09-17
申请号：US16082026
申请日：2017-02-08
摘要： Sheets made from metallocene-catalyzed polyethylene polymers, optionally, with other polymers, are disclosed.
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