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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%.
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公开(公告)号：US11046843B2
公开(公告)日：2021-06-29
申请号：US16524600
申请日：2019-07-29
发明人： Vinod Konaganti , Sepideh Kasiri , Shivendra Goyal , Monika Kleczek , Fazle Sibtain , Marzieh Ebrahimi
IPC分类号： C08L23/00 , C08L23/16 , C08L23/08 , C08F4/02 , C08F4/6592 , C08F210/14 , C08F210/16 , C08F4/659 , C08F2/00
摘要： An ethylene copolymer composition comprises: a first ethylene copolymer having a density of from 0.855 to 0.913 g/cm3, a molecular weight distribution, Mw/Mn of from 1.7 to 2.3, and a melt index, I2 of from 0.1 to 20 g/10 min; a second ethylene copolymer having a density of from 0.875 to 0.936 g/cm3, a molecular weight distribution, Mw/Mn of from 2.3 to 6.0, and a melt index, I2 of from 0.3 to 100 g/10 min; and optionally a third ethylene copolymer; where the first ethylene copolymer has more short chain branches per thousand carbon atoms than the second ethylene copolymer and the density of the second ethylene copolymer is equal to or higher than the density of the first ethylene copolymer. The ethylene copolymer composition has a density of from 0.865 to 0.913 g/cm3; a melt index, I2 of from 0.5 to 10 g/10 min; and a fraction eluting at from 90 to 105° C., having an integrated area of greater than 4 weight percent in a CTREF analysis; and at least 0.0015 parts per million (ppm) of hafnium.
Blown film made from the ethylene copolymer composition has a hot tack window (HTW) of at least 45° C. (at a film thickness of about 2 mil) and a seal initiation temperature (SIT) of less than 95° C. (at a film thickness of about 2 mil).-
公开(公告)号：US20240052146A1
公开(公告)日：2024-02-15
申请号：US18546109
申请日：2022-03-01
发明人： Vinod Konaganti , Shivendra Goyal , Niousha Kazemi , Marcia Pires Fortes Ferreira , Marzieh Ebrahimi , Mehrnaz Rahimi , Stephen Brown
IPC分类号： C08L23/08 , C08F4/76 , C09D123/08
CPC分类号： C08L23/0815 , C08F4/76 , C09D123/0815 , C08L2205/03 , C08L2205/025 , C08L2203/16
摘要： Ethylene copolymer compositions having a density of 0.902 g/cm3 or less exhibit rapid crystallization behavior. The ethylene copolymer compositions comprise a first ethylene copolymer, a second ethylene copolymer and optionally a third ethylene copolymer, where the number average molecular weight of the first ethylene copolymer is greater than the number average molecular weight of the second ethylene copolymer. The ethylene copolymer compositions are useful in the formation of monolayer and multilayer films.
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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%.
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公开(公告)号：US20210024726A1
公开(公告)日：2021-01-28
申请号：US17068919
申请日：2020-10-13
摘要： This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (Me). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCIDi), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCIDi.
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公开(公告)号：US20200216645A1
公开(公告)日：2020-07-09
申请号：US16243203
申请日：2019-01-09
摘要： This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (Me). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCIDi), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCIDi.
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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.
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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.
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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：US20230002596A1
公开(公告)日：2023-01-05
申请号：US17895547
申请日：2022-08-25
摘要： This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (Me). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCIDi), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm3, a polydispersity (Mw/Mn) from about 2 to about 25 and a CDBI50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCIDi.
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