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公开(公告)号：US20200056025A1
公开(公告)日：2020-02-20
申请号：US16557153
申请日：2019-08-30
发明人： Zengrong Zhang , Niousha Kazemi , Stephen Salomons , Monika Kleczek , Mehdi Keshtkar , Brian Molloy , Qinyan Wang , Peter Zoricak , Charles Carter , XiaoChuan Wang , Christopher Dobbin , Fazle Sibtain , Kenneth Taylor , Lawrence VanAsseldonk , Hamidreza Khakdaman
IPC分类号： C08L23/08 , C08J5/18 , C08F210/16
摘要： A continuous solution polymerization process is disclosed wherein at least two catalyst formulations are employed. A first homogeneous catalyst formulation is employed in a first reactor to produce a first ethylene interpolymer and a first heterogeneous catalyst formulation is employed in a second reactor to produce a second ethylene interpolymer. Optionally a third ethylene interpolymer is formed in a third reactor. The resulting ethylene interpolymer products possess desirable properties in a variety of end use applications, for example in film applications. A means for increasing the molecular weight of the first ethylene interpolymer is disclosed and/or a means for increasing the temperature of the first reactor, relative to a third homogeneous catalyst formulation. A means for reducing the (α-olefin/ethylene) weight ratio in the first reactor is disclosed and/or reducing the density of the first ethylene interpolymer, relative to a third homogeneous catalyst formulation.
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公开(公告)号：US20190241724A1
公开(公告)日：2019-08-08
申请号：US16385211
申请日：2019-04-16
发明人： Brian Molloy , Shivendra Goyal , Stephen Salomons , Fazle Sibtain
IPC分类号： C08L23/08 , C08J5/18 , B32B27/34 , C08J5/00 , C08F2/00 , C08L23/20 , B32B3/26 , B32B27/32 , B29C41/22 , C08L23/14 , C08F2/06 , C08F4/6592 , C08F210/16 , B32B7/12 , B32B27/08 , B29C41/04
摘要： This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Yd) greater than 0; total catalytic metal ≥3.0 ppm; ≥0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.869 to about 0.975 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 20% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.
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公开(公告)号：US10370470B2
公开(公告)日：2019-08-06
申请号：US15819189
申请日：2017-11-21
发明人： Darryl J Morrison , Stephen Salomons , Isam Jaber
IPC分类号： C08F4/6592 , C08F210/16 , C08F4/659
摘要： By controlling the ratio of catalyst components or the type of activator the homogeneity of a polymer produced using a single site catalyst may be improved.
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公开(公告)号：US20190161569A1
公开(公告)日：2019-05-30
申请号：US16264967
申请日：2019-02-01
IPC分类号： C08F210/16 , B32B27/06 , C08L23/08 , C08F210/00 , C08L23/06 , C08J5/18
摘要： Embodiments of the invention described herein relate to a polyethylene polymer composition suitable for use in the manufacture of packaging articles, flexible films and/or sheets. In one embodiment, the copolymer comprises a polyethylene resin with density 0.918 g/cm3 to about 0.935 g/cm3, G′ at G″(500 Pa) value, as determined from Dynamic Mechanical Analysis at 190° C., of less than 40 Pa, Mz/Mw of greater than 2, CDBI50 of greater than 60. Other embodiments relate to polymer compositions with defined molecular characteristics and formulations suitable for use in the manufacture of articles including films, sheets, bags and pouches with improved creep resistance and high toughness and a good balance of film stiffness and processability in monolayer and/or multi-layer film structures.
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公开(公告)号：US20190144581A1
公开(公告)日：2019-05-16
申请号：US16207496
申请日：2018-12-03
发明人： Shivendra Kumar Goyal , Bronwyn Hilary Gillon , Christopher John Brooke Dobbin , Stephen Salomons
IPC分类号： C08F210/16 , B32B7/02 , C08L23/08 , C08L23/06 , C08J5/18 , B32B27/32 , B32B27/08 , C08F210/00
摘要： Provided herein are VLDPE polymer compositions suitable for use in the manufacture of flexible films or sheets. In one embodiment, the copolymer comprises a polyethylene VLDPE resin with Mz/Mw of greater than 2, CDBI50 of greater than 55 and a single melting peak in DSC measurement. The polymer compositions disclosed herein may be suitable for use in the manufacture of films with improved balance of film toughness, processability and sealability in monolayer and multi-layer film structures.
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公开(公告)号：US09963529B1
公开(公告)日：2018-05-08
申请号：US15491135
申请日：2017-04-19
发明人： Niousha Kazemi , Stephen Brown , Lawrence VanAsseldonk , XiaoChuan Wang , Stephen Salomons , Yves Lacombe
IPC分类号： C08F210/16 , C08F2/06 , C08F2/38 , B01J19/18 , C08F4/642
CPC分类号： C08F210/16 , B01J19/1818 , B01J19/1825 , B01J2219/1941 , C08F2/001 , C08F10/02 , C08F2/01
摘要： This disclosure relates to a continuous solution three reactor polymerization process. Process solvent, ethylene, optional comonomers, optional hydrogen and a single site catalyst system are injected into a first and second reactor configured in parallel to one another. A third reactor receives effluent from the first reactor, the second reactor, or a combination of the first and second reactors. Fresh monomer is feed to the third reactor for further polymerization and to give a final polyethylene product.
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公开(公告)号：US11773197B2
公开(公告)日：2023-10-03
申请号：US16866730
申请日：2020-05-05
发明人： Niousha Kazemi , Monika Kleczek , Vinod Konaganti , Bronwyn Gillon , Shivendra Goyal , Fazle Sibtain , Sepideh Kasiri , Stephen Salomons , Kenneth Taylor , Mehdi Keshtkar
IPC分类号： C08F2/01 , C08F4/6592 , C08F210/16 , C08L23/08 , C08J5/18 , B32B27/08 , B32B27/32 , C08F4/659
CPC分类号： C08F210/16 , C08J5/18 , B32B27/08 , B32B27/32 , C08F4/65908 , C08F4/65912 , C08J2323/06 , C08J2323/08 , C08L23/0815 , C08F210/16 , C08F2/001 , C08F210/16 , C08F2/06 , C08F210/16 , C08F4/65927 , C08F210/16 , C08F210/14 , C08F2500/04 , C08F2500/05 , C08F2500/06 , C08F2500/10 , C08F2500/11 , C08F2500/12 , C08F2500/26 , C08F210/16 , C08F210/14 , C08F2500/02 , C08F2500/03 , C08F2500/08 , C08F2500/09 , C08F2500/10 , C08F2500/11 , C08F2500/12 , C08F2500/17 , C08F2500/26 , C08F210/16 , C08F210/14 , C08F2500/02 , C08F2500/03 , C08F2500/05 , C08F2500/08 , C08F2500/09 , C08F2500/10 , C08F2500/11 , C08F2500/12 , C08F2500/17 , C08F2500/26
摘要： This disclosure relates to an improved continuous solution polymerization process wherein production rate is increased. Process solvent, ethylene, optional comonomers, optional hydrogen and a bridged metallocene catalyst formulation are injected into a first reactor to form a first ethylene interpolymer. Optionally, process solvent, ethylene, optional comonomers, optional hydrogen and a bridged metallocene catalyst formulation are injected into a second reactor forming a second ethylene interpolymer. The first and second reactors may be configured in series or parallel modes of operation. Optionally, a third ethylene interpolymer is formed in a third reactor, wherein a homogeneous catalyst formulation or a heterogeneous catalyst formulation is employed. In solution, the first, optional second and optional third ethylene interpolymers are combined, the catalyst is deactivated, the solution is optionally passivated and following a phase separation process an ethylene interpolymer product is recovered.
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公开(公告)号：US20220227978A1
公开(公告)日：2022-07-21
申请号：US17701385
申请日：2022-03-22
发明人： Soheil Sadeghi , Fazle Sibtain , Zengrong Zhang , Niousha Kazemi , Monika Kleczek , Vinod Konaganti , Bronwyn Gillon , Shivendra Goyal , Sepideh Kasiri , Stephen Salomons , Kenneth Taylor , Mehdi Keshtkar
摘要： This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δint., greater than or equal to 0.01, satisfying 0.01×(Z−50)0.78≤Δint.≤0.01×(Z−60)0.78 inequality wherein Z is a normalized molecular weight defined by Z = M w M e where Mw and Me are the weight average and entanglement molecular weights, and; a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.855 to about 0.975 g/cc, a polydispersity, M w M n , from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.
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公开(公告)号：US10954365B2
公开(公告)日：2021-03-23
申请号：US16385211
申请日：2019-04-16
发明人： Brian Molloy , Shivendra Goyal , Stephen Salomons , Fazle Sibtain
IPC分类号： C08J5/00 , C08L23/08 , C08F2/00 , C08F4/6592 , B29C41/22 , C08F2/06 , B32B3/26 , B32B27/32 , C08J5/18 , C08L23/20 , B29C41/04 , C08F210/16 , B32B7/12 , B32B27/08 , B32B27/34 , C08F4/655 , C08F4/658 , C08F4/659 , C08L23/14 , B29K23/00 , B29K105/00 , C08F210/14
摘要： This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Yd) greater than 0; total catalytic metal ≥3.0 ppm; ≥0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (Xd) greater than 0. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.869 to about 0.975 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 20% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.
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公开(公告)号：US10738183B2
公开(公告)日：2020-08-11
申请号：US16557153
申请日：2019-08-30
发明人： Zengrong Zhang , Niousha Kazemi , Stephen Salomons , Monika Kleczek , Mehdi Keshtkar , Brian Molloy , Qinyan Wang , Peter Zoricak , Charles Carter , XiaoChuan Wang , Christopher Dobbin , Fazle Sibtain , Kenneth Taylor , Lawrence VanAsseldonk , Hamidreza Khakdaman
IPC分类号： C08F210/16 , C08J5/18 , C08L23/08 , C08F4/659 , C08F4/6592
摘要： A continuous solution polymerization process is disclosed wherein at least two catalyst formulations are employed. A first homogeneous catalyst formulation is employed in a first reactor to produce a first ethylene interpolymer and a first heterogeneous catalyst formulation is employed in a second reactor to produce a second ethylene interpolymer. Optionally a third ethylene interpolymer is formed in a third reactor. The resulting ethylene interpolymer products possess desirable properties in a variety of end use applications, for example in film applications. A means for increasing the molecular weight of the first ethylene interpolymer is disclosed and/or a means for increasing the temperature of the first reactor, relative to a third homogeneous catalyst formulation. A means for reducing the (α-olefin/ethylene) weight ratio in the first reactor is disclosed and/or reducing the density of the first ethylene interpolymer, relative to a third homogeneous catalyst formulation.
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