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公开(公告)号：WO2019092523A1
公开(公告)日：2019-05-16
申请号：PCT/IB2018/058106
申请日：2018-10-18
发明人： KAZEMI, Niousha , KLECZEK, Monika , KONAGANTI, Vinod , GILLON, Bronwyn , GOYAL, Shivendra , SIBTAIN, Fazle , KASIRI, Sepideh , SALOMONS, Stephen , TAYLOR, Kenneth , KESHTKAR, Mehdi
IPC分类号： C08F2/06 , C08F2/00 , C08F210/16 , 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.
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公开(公告)号：WO2019092524A1
公开(公告)日：2019-05-16
申请号：PCT/IB2018/058110
申请日：2018-10-18
发明人： KAZEMI, Niousha , KLECZEK, Monika , KONAGANTI, Vinod , GILLON, Bronwyn , GOYAL, Shivendra , SIBTAIN, Fazle , KASIRI, Sepideh , SALOMONS, Stephen , TAYLOR, Kenneth , KESHTKAR, Mehdi
IPC分类号： C08F210/16 , C08F2/06 , C08F2/00 , C08F4/659
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 -0.40 to U -T U )/T U , where SC U is the amount of a side chain unsaturation per 100 carbons and T U 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 (M w /M n ) from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI 50 ) from about 1 % to about 98%.
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公开(公告)号：WO2021124157A1
公开(公告)日：2021-06-24
申请号：PCT/IB2020/062039
申请日：2020-12-16
发明人： CLAVELLE, Eric , LACOMBE, Yves , MOLLOY, Brian , KAZEMI, Niousha , KESHTKAR, Mehdi , SIBTAIN, Fazle
IPC分类号： C08L23/08 , C08J3/00 , C08F2/44 , C08F210/16 , C08F2/14 , C08F2/34 , C08J11/04 , C08J2300/30 , C08J2323/06 , C08J2400/30 , C08J2423/06 , C08J2423/08 , C08L2205/025 , C08L2207/20 , C08L23/0815
摘要： Disclosed herein are polymerization processes where recycled polymeric material is fed to polymerization process to produce a blend of virgin polymer with recycled polymeric content.
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公开(公告)号：WO2018167610A1
公开(公告)日：2018-09-20
申请号：PCT/IB2018/051484
申请日：2018-03-07
发明人： KESHTKAR, Mehdi , HULET, Craig
摘要： Low density polyethylene produced in tubular reactors using free radical initiators in a high pressure process can vary significantly with respect to melt elasticity. Provided is a method for controlling the melt elasticity of low density polyethylene produced in a tubular reactor comprising altering the levels of bi- functional initiator added in multiple injection points relative to the traditional mono- functional initiators added, while striving to maintain desired density and melt index at a preferred conversion rate.
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公开(公告)号：WO2018193331A1
公开(公告)日：2018-10-25
申请号：PCT/IB2018/052403
申请日：2018-04-06
发明人： ZHANG, Zengrong , KAZEMI, Niousha , SALOMONS, Stephen , KLECZEK, Monika , KESHTKAR, Mehdi , MOLLOY, Brian , WANG, Qinyan , ZORICAK, Peter , CARTER, Charles , WANG, Xiaochuan , DOBBIN, Christopher , SIBTAIN, Fazle , TAYLOR, Kenneth , VAN ASSELDONK, Lawrence , KHAKDAMAN, Hamidreza
IPC分类号： C08F210/16 , C08F4/6592 , C08F4/659 , C08L23/08 , C08J5/18
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.
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公开(公告)号：WO2017208106A1
公开(公告)日：2017-12-07
申请号：PCT/IB2017/052977
申请日：2017-05-19
摘要： A closure comprising a polyethylene copolymer which has a density of from 0.940 to 0.962 g/cm 3 , a melt index I 2 of less 1.5 g/10 min, high levels of unsaturation and low catalyst component residues, has excellent organoleptic properties.
摘要翻译： 包含密度为0.940至0.962g / cm 3的聚乙烯共聚物的封闭物，熔体指数I 2小于1.5 g / 10min，不饱和度高和催化剂成分残留量低，具有优异的感官特性。
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公开(公告)号：WO2015092662A1
公开(公告)日：2015-06-25
申请号：PCT/IB2014/066933
申请日：2014-12-15
发明人： KESHTKAR, Mehdi , LI, Tieqi
IPC分类号： C09D123/06
CPC分类号： C09D123/06 , B05D1/265 , C08L2205/02 , C08L2207/062 , C08L2207/066 , C08L23/0815
摘要： A low density polyethylene (LDPE) made in a tubular reactor has improved stretch-ratio and melt strength properties after being blended with a small amount (1-25 weight percent of the blend) of a high density polyethylene (HDPE). The blends are useful as extrusion coating compositions.
摘要翻译： 在管式反应器中制备的低密度聚乙烯（LDPE）与低密度聚乙烯（HDPE）的少量（1-25重量％的共混物）混合后具有改善的拉伸比和熔体强度性能。 共混物可用作挤出涂料组合物。
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公开(公告)号：WO2021191814A2
公开(公告)日：2021-09-30
申请号：PCT/IB2021/052436
申请日：2021-03-24
发明人： SADEGHI, Soheil , SIBTAIN, Fazle , ZHANG, Zengrong , KAZEMI, Niousha , KLECZEK, Monika , KONAGANTI, Vinod , GILLON, Bronwyn , GOYAL, Shivendra , KASIRI, Sepideh , SALOMONS, Stephen , TAYLOR, Kenneth , KESHTKAR, Mehdi
IPC分类号： C08F210/16 , C08J5/18 , C08F4/659 , B32B27/08 , C08L23/08 , B32B2250/02 , B32B2250/03 , B32B2250/05 , B32B2250/242 , B32B2255/10 , B32B2255/20 , B32B2270/00 , B32B2307/30 , B32B2307/31 , B32B2307/402 , B32B2307/406 , B32B2307/536 , B32B2307/54 , B32B2307/546 , B32B2307/554 , B32B2307/558 , B32B2307/5825 , B32B2307/72 , B32B2307/732 , B32B2410/00 , B32B2435/02 , B32B2439/02 , B32B2439/46 , B32B2439/62 , B32B2439/70 , B32B2457/00 , B32B2535/00 , B32B2553/00 , B32B2553/023 , B32B2553/026 , B32B2555/00 , B32B2597/00 , B32B2605/12 , B32B27/16 , B32B27/20 , B32B27/22 , B32B27/306 , B32B27/32 , B32B27/327 , B32B27/34 , B32B27/36 , B32B7/12 , C08F4/65908 , C08F4/65912 , C08J2323/08 , C08L23/0815
摘要： This disclosure relates to ethylene interpolymer compositions, films prepared therefrom and a nonlinear rheology method capable of determining presence of long-chain branched structures in these ethylene interpolymer compositions. Ethylene interpolymer compositions disclosed herein specifically relates to ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δint., greater than or equal to 0.01, satisfying 0.01 × (Z − 48)0.78 ≤∆int.≤ 0.01 × (Z − 60)0.78 inequality wherein Ζ is a normalized molecular weight defined by (I) 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, 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：WO2019092525A1
公开(公告)日：2019-05-16
申请号：PCT/IB2018/058112
申请日：2018-10-18
发明人： KAZEMI, Niousha , KLECZEK, Monika , KONAGANTI, Vinod , GILLON, Bronwyn , GOYAL, Shivendra , SIBTAIN, Fazle , KASIRI, Sepideh , SALOMONS, Stephen , TAYLOR, Kenneth , KESHTKAR, Mehdi
IPC分类号： C08F210/16 , C08F2/06 , C08F2/00 , C08F4/659
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 [a-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.
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公开(公告)号：WO2018193375A1
公开(公告)日：2018-10-25
申请号：PCT/IB2018/052659
申请日：2018-04-17
发明人： ZHANG, Zengrong , KAZEMI, Niousha , SALOMONS, Stephen , KLECZEK, Monika , KESHTKAR, Mehdi , MOLLOY, Brian , WANG, Qinyan , ZORICAK, Peter , CARTER, Charles , WANG, Xiaochuan , DOBBIN, Christopher , SIBTAIN, Fazle , TAYLOR, Kenneth , VAN ASSELDONK, Lawrence , KHAKDAMAN, Hamidreza
IPC分类号： C08F210/16 , C08F4/659 , C08F4/6592 , C08F4/655 , C08L23/08 , C08J5/18
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 applicationΩs. 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 formulαation.
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