公开(公告)号：US11312845B2

公开(公告)日：2022-04-26

申请号：US16826689

申请日：2020-03-23

申请人： NOVA Chemicals (International) S.A.

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

IPC分类号： C08L23/08 ,  C08F210/16 ,  C08F4/6592 ,  C08J5/18 ,  B32B27/32 ,  B32B27/34 ,  B32B27/08

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%.

公开(公告)号：US11015044B2

公开(公告)日：2021-05-25

申请号：US16556369

申请日：2019-08-30

申请人： NOVA Chemicals (International) S.A.

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 homogeneous catalyst formulations are employed. A first homogeneous catalyst formulation is employed in a first reactor to produce a first ethylene interpolymer and a second homogeneous 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 the 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 the third homogeneous catalyst formulation.

公开(公告)号：US10683376B2

公开(公告)日：2020-06-16

申请号：US15805287

申请日：2017-11-07

申请人： NOVA Chemicals (International) S.A.

发明人： Niousha Kazemi ,  Monika Kleczek ,  Vinod Konaganti ,  Bronwyn Gillon ,  Shivendra Kumar Goyal ,  Fazle Sibtain ,  Sepideh Kasiri ,  Stephen Salomons ,  Kenneth Edward Taylor ,  Mehdi Keshtkar

IPC分类号： C08F4/6592 ,  C08F210/16 ,  C08J5/18 ,  B32B27/08 ,  B32B27/32 ,  C08F4/659

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.

公开(公告)号：US10577491B2

公开(公告)日：2020-03-03

申请号：US16010542

申请日：2018-06-18

申请人： NOVA Chemicals (International) S.A.

发明人： Maryam Fereydoon ,  Stephen Salomons ,  Shivendra Kumar Goyal ,  Kenneth Taylor ,  Tieqi Li

IPC分类号： C08F2/06 ,  C08L23/08 ,  C08F4/6592 ,  B29C41/22 ,  B29C41/04 ,  B32B3/26 ,  B32B7/12 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  C08F2/00 ,  C08F4/655 ,  C08F4/658 ,  C08F4/659 ,  C08F210/16 ,  C08J5/00 ,  C08J5/18 ,  C08L23/20 ,  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.

公开(公告)号：US20190135959A1

公开(公告)日：2019-05-09

申请号：US15805287

申请日：2017-11-07

申请人： NOVA Chemicals (International) S.A.

发明人： Niousha Kazemi ,  Monika Kleczek ,  Vinod Konaganti ,  Bronwyn Gillon ,  Shivendra Kumar Goyal ,  Fazle Sibtain ,  Sepideh Kasiri ,  Stephen Salomons ,  Kenneth Edward Taylor ,  Mehdi Keshtkar

IPC分类号： C08F210/16 ,  C08J5/18

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.

公开(公告)号：US10239976B2

公开(公告)日：2019-03-26

申请号：US15504341

申请日：2015-08-06

申请人： NOVA Chemicals (International) S.A.

发明人： Shivendra Goyal ,  Bronwyn Gillon ,  Stephen Salomons

IPC分类号： B32B27/06 ,  C08F210/16 ,  C08J5/18 ,  C08L23/06 ,  C08L23/08 ,  C08F210/00 ,  C08F4/659

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.

公开(公告)号：US20180305531A1

公开(公告)日：2018-10-25

申请号：US15491264

申请日：2017-04-19

申请人： NOVA Chemicals (International) S.A.

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 ,  C08F210/16 ,  C08J5/18

CPC分类号： C08L23/0815 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F210/16 ,  C08F2410/01 ,  C08F2410/05 ,  C08F2420/01 ,  C08F2800/20 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/08 ,  C08L2203/16 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2207/07 ,  C08L2314/02 ,  C08L2314/06 ,  C08F4/6555 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/05 ,  C08F2500/09 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/26 ,  C08F4/65904 ,  C08F2500/02 ,  C08F2500/06

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.

公开(公告)号：US20170233512A1

公开(公告)日：2017-08-17

申请号：US15504341

申请日：2015-08-06

申请人： NOVA Chemicals (International) S.A.

发明人： Shivendra Goyal ,  Bronwyn Gillon ,  Stephen Salomons

IPC分类号： C08F210/16 ,  B32B27/06 ,  C08L23/06 ,  C08J5/18 ,  C08L23/08

CPC分类号： C08F210/16 ,  B32B27/06 ,  B32B2307/72 ,  C08F4/65908 ,  C08F4/65912 ,  C08F210/00 ,  C08F2420/04 ,  C08F2500/26 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/06 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/025 ,  C08F2500/12 ,  C08F2500/06 ,  C08F4/6592 ,  C08F2/001 ,  C08F2/04

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.

公开(公告)号：US11111368B2

公开(公告)日：2021-09-07

申请号：US16910141

申请日：2020-06-24

申请人： NOVA Chemicals (International) S.A.

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 ,  C08F210/16 ,  C08J5/18 ,  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.

公开(公告)号：US20210221929A1

公开(公告)日：2021-07-22

申请号：US17219622

申请日：2021-03-31

申请人： NOVA CHEMICALS (INTERNATIONAL) S.A.

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： C08F210/16 ,  C08J5/18 ,  C08L23/08 ,  B32B27/32

摘要： This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless Long Chain Branching Factor, LCBF, greater than or equal to 0.001; a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium, and; a dimensionless unsaturation ratio, UR, of from ≥−0.40 to ≤0.06, wherein UR is defined by the following relationship; UR=(SCU−TU)/TU, where SCU is the amount of a side chain unsaturation per 100 carbons and TU is amount of a terminal unsaturation per 100 carbons, in said ethylene interpolymer product. 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 (Mw/Mn) from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.