-
公开(公告)号：US20210221929A1
公开(公告)日：2021-07-22
申请号：US17219622
申请日：2021-03-31
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%.
-
公开(公告)号：US11312845B2
公开(公告)日：2022-04-26
申请号：US16826689
申请日：2020-03-23
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：US10683376B2
公开(公告)日：2020-06-16
申请号：US15805287
申请日：2017-11-07
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：US20190135959A1
公开(公告)日：2019-05-09
申请号：US15805287
申请日：2017-11-07
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
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：US20170233512A1
公开(公告)日：2017-08-17
申请号：US15504341
申请日：2015-08-06
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：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.
-
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%.
-
公开(公告)号：US20200224013A1
公开(公告)日：2020-07-16
申请号：US16826689
申请日：2020-03-23
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%.
-
公开(公告)号：US20190135960A1
公开(公告)日：2019-05-09
申请号：US15805304
申请日：2017-11-07
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
摘要： This disclosure relates to an improved solution polymerization process wherein the molecular weight of an ethylene interpolymer product can be increased relative to a comparative process; or at constant ethylene interpolymer molecular weight the improved process can be operated at higher polymerization temperature relative to the comparative process. This disclosure also relates to an improved solution polymerization process wherein an ethylene interpolymer product at target density can be produced at a lower [α-olefin/ethylene] weight ratio in the reactor, relative to a comparative process. Process solvent, ethylene, optional comonomers, optional hydrogen and a bridged metallocene catalyst formulation are injected into one or more reactors to form the ethylene interpolymer product. The catalyst is subsequently deactivated, the solution is optionally passivated and following a phase separation process the ethylene interpolymer product is recovered.
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.025 秒)
