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Применить Всего найдено 64. Отображено 64.
26-04-2022 дата публикации

Ethylene interpolymer products and films

Номер: US0011312845B2
Автор: Soheil Sadeghi, Fazle Sibtain, Zengrong Zhang, Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Goyal, Sepideh Kasiri, Stephen Salomons, Kenneth Taylor, Mehdi Keshtkar
Принадлежит: NOVA Chemicals (International) S.A.

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 byZ=MwMewhere 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,MwMn,from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.

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Номер записи: 1
09-05-2019 дата публикации

ETHYLENE INTERPOLYMER PRODUCTS AND FILMS

Номер: US20190135958A1
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Kumar Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Edward Taylor, Mehdi Keshtkar, KAZEMI NIOUSHA, KLECZEK MONIKA, KONAGANTI VINOD, GILLON BRONWYN, GOYAL SHIVENDRA KUMAR, SIBTAIN FAZLE, KASIRI SEPIDEH, SALOMONS STEPHEN, TAYLOR KENNETH EDWARD, KESHTKAR MEHDI, Kazemi, Niousha, Kleczek, Monika, Konaganti, Vinod, Gillon, Bronwyn, Goyal, Shivendra Kumar, Sibtain, Fazle, Kasiri, Sepideh, Salomons, Stephen, Taylor, Kenneth Edward, Keshtkar, Mehdi
Принадлежит: NOVA Chemicals (International) S.A.

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=(SC−T)/T, where SCis the amount of a side chain unsaturation per 100 carbons and Tis 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/M) from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI) from about 1% to about 98%. 1. An ethylene interpolymer product comprising at least one ethylene interpolymer , wherein the ethylene interpolymer product comprises:a) a dimensionless Long Chain Branching Factor, LCBF, of greater than or equal to 0.001;b) a residual catalytic metal of from ≥0.03 to ≤5 ppm of hafnium, wherein the residual catalytic metal is measured using neutron activation; and {'br': None, 'sup': U', 'U', 'U, 'i': −T', 'T, 'UR=(SC)/'}, 'c) a dimensionless unsaturation ratio, UR, of from ≥−0.40 to ≤0.06, wherein the UR is defined by the following relationship;'}{'sup': U', 'U, 'wherein SCis the amount of a side chain unsaturation per 100 carbons and Tis the amount of a terminal unsaturation per 100 carbons in the ethylene interpolymer product, as determined by ASTM D3124-98 and ASTM D6248-98.'}2. The ethylene interpolymer product of claim 1 , wherein the ethylene interpolymer product comprises a first ethylene interpolymer claim 1 , a second ethylene interpolymer claim 1 , and optionally a third ethylene interpolymer.3. The ethylene interpolymer product of claim 1 , wherein the ethylene interpolymer product has a melt ...

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Номер записи: 2
04-05-2021 дата публикации

Ethylene interpolymer products and films

Номер: US0010995166B2
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Kumar Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Edward Taylor, Mehdi Keshtkar, KAZEMI NIOUSHA, KLECZEK MONIKA, KONAGANTI VINOD, GILLON BRONWYN, GOYAL SHIVENDRA KUMAR, SIBTAIN FAZLE, KASIRI SEPIDEH, SALOMONS STEPHEN, TAYLOR KENNETH EDWARD, KESHTKAR MEHDI, Kazemi, Niousha, Kleczek, Monika, Konaganti, Vinod, Gillon, Bronwyn, Goyal, Shivendra Kumar, Sibtain, Fazle, Kasiri, Sepideh, Salomons, Stephen, Taylor, Kenneth Edward, Keshtkar, Mehdi
Принадлежит: NOVA Chemicals (International) S.A., NOVA CHEM INT SA

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=(SC 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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Номер записи: 3
15-10-2019 дата публикации

Means for increasing the molecular weight and decreasing the density employing mixed homogeneous catalyst formulations

Номер: US0010442921B2
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A., NOVA CHEM INT SA

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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Номер записи: 4
16-07-2020 дата публикации

ETHYLENE INTERPOLYMER PRODUCTS AND FILMS

Номер: US20200224013A1
Автор: Soheil Sadeghi, Fazle Sibtain, Zengrong Zhang, Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Goyal, Sepideh Kasiri, Stephen Salomons, Kenneth Taylor, Mehdi Keshtkar, SADEGHI SOHEIL, SIBTAIN FAZLE, ZHANG ZENGRONG, KAZEMI NIOUSHA, KLECZEK MONIKA, KONAGANTI VINOD, GILLON BRONWYN, GOYAL SHIVENDRA, KASIRI SEPIDEH, SALOMONS STEPHEN, TAYLOR KENNETH, KESHTKAR MEHDI, Sadeghi, Soheil, Sibtain, Fazle, Zhang, Zengrong, Kazemi, Niousha, Kleczek, Monika, Konaganti, Vinod, Gillon, Bronwyn, Goyal, Shivendra, Kasiri, Sepideh, Salomons, Stephen, Taylor, Kenneth, Keshtkar, Mehdi
Принадлежит: NOVA Chemicals (International) S.A.

This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δ, greater than or equal to 0.01, satisfying 0.01×(Z−50)≤Δ≤0.01×(Z−60)inequality wherein Z is a normalized molecular weight defined by

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Номер записи: 5
16-06-2020 дата публикации

Manufacturing ethylene interpolymer products at higher production rate

Номер: US0010683376B2
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Kumar Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Edward Taylor, Mehdi Keshtkar, KAZEMI NIOUSHA, KLECZEK MONIKA, KONAGANTI VINOD, GILLON BRONWYN, GOYAL SHIVENDRA KUMAR, SIBTAIN FAZLE, KASIRI SEPIDEH, SALOMONS STEPHEN, TAYLOR KENNETH EDWARD, KESHTKAR MEHDI, Kazemi, Niousha, Kleczek, Monika, Konaganti, Vinod, Gillon, Bronwyn, Goyal, Shivendra Kumar, Sibtain, Fazle, Kasiri, Sepideh, Salomons, Stephen, Taylor, Kenneth Edward, Keshtkar, Mehdi
Принадлежит: NOVA Chemicals (International) S.A., NOVA CHEM INT SA

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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Номер записи: 6
07-09-2021 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations

Номер: US0011111368B2
Автор: 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
Принадлежит: NOVA Chemicals (International) S.A.

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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Номер записи: 7
11-08-2020 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations

Номер: US0010738183B2
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A., NOVA CHEMICALS (INTERNATIONAL) SA

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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Номер записи: 8
21-07-2022 дата публикации

Ethylene Interpolymer Products and Films

Номер: US20220227978A1
Автор: Soheil Sadeghi, Fazle Sibtain, Zengrong Zhang, Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Goyal, Sepideh Kasiri, Stephen Salomons, Kenneth Taylor, Mehdi Keshtkar
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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 byZ=MwMewhere 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,MwMn,from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI50) from about 1% to about 98%.

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Номер записи: 9
22-07-2021 дата публикации

ETHYLENE INTERPOLYMER PRODUCTS AND FILMS

Номер: US20210221929A1
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Taylor, Mehdi Keshtkar
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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=(SC−T)/T, where SCis the amount of a side chain unsaturation per 100 carbons and Tis 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/M) from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI) from about 1% to about 98%. 111-. (canceled)12. A film comprising at least one layer comprising an ethylene interpolymer product comprising at least one ethylene interpolymer , wherein the ethylene interpolymer product exhibits;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, wherein the residual catalytic metal is measured using neutron activation; and {'br': None, 'sup': U', 'U', 'U, 'i': −T', 'T, 'UR=(SC)/'}, 'a dimensionless unsaturation ratio, UR, of from ≥−0.40 to ≤0.06, wherein UR is defined by the following relationship;'}{'sup': U', 'U, 'wherein, SCis the amount of a side chain unsaturation per 100 carbons and Tis amount of a terminal unsaturation per 100 carbons, in the ethylene interpolymer product, as determined by ASTM D3124-98 and ASTM D6248-98;'}wherein the ethylene interpolymer product is synthesized in the presence of a bridged metallocene catalyst.13. The film of claim 12 , wherein the film is characterized by one or more of the following:a film gloss at 45° that is from 10% to 30% higher relative to a comparative film of the ...

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Номер записи: 10
20-02-2020 дата публикации

Means For Increasing the Molecular Weight and Decreasing the Density of Ethylene Interpolymers Employing Homogeneous and Heterogeneous Catalyst Formulations

Номер: US20200056025A1
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A.

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. 1139-. (canceled)141. The process according to further comprising:a) optionally adding a catalyst deactivator A to the third exit stream, downstream of the first and the second reactor, forming a deactivated solution A;b) adding a catalyst deactivator B to the fourth exit stream, downstream of the third reactor, forming a deactivated solution B; with the proviso that step b) is skipped if the catalyst deactivator A is added in step a); andc) phase separating the deactivated solution A or B to recover the ethylene interpolymer product.142. The process according to claim 141 , further comprising:d) adding a passivator to the deactivated solution A or B forming a passivated solution; ande) phase separating the passivated solution to recover the ethylene interpolymer product.144. The process according to comprising the following molar ratios in the first reactor:a molar ratio of component B to component A from about 0.3:1 to about 10:1;a molar ratio of component M to component A from about 1:1 to ...

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Номер записи: 11
15-10-2020 дата публикации

Means For Increasing the Molecular Weight and Decreasing the Density of Ethylene Interpolymers Employing Homogeneous and Heterogeneous Catalyst Formulations

Номер: US20200325317A1
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A.

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. 2. The polyethylene film according to claim 1 , wherein the ethylene interpolymer product further comprising one or more of the following:(i) greater than or equal to about 0.02 terminal vinyl unsaturations per 100 carbon atoms;(ii) greater than or equal to about 0.12 parts per million (ppm) of a total catalytic metal.3. The polyethylene film according to claim 1 , wherein the ethylene interpolymer product has a melt index from about 0.3 to about 500 dg/minute; wherein melt index is measured according to ASTM D1238 (2.16 kg load and 190° C.).4. The polyethylene film according to claim 1 , wherein the ethylene interpolymer product has a M/Mfrom about 2 to about 25.5. The polyethylene film according to claim 1 , wherein the ethylene interpolymer product has a CDBIfrom about 20% to about 98%.7. The polyethylene film according to claim 1 , wherein(i) the first ethylene interpolymer has a melt index from about 0.01 to about 200 dg/minute;(ii) the second ethylene interpolymer has melt index from ...

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Номер записи: 12
30-11-2017 дата публикации

CLOSURE HAVING EXCELLENT ORGANOLEPTIC PERFORMANCE

Номер: US20170342176A1
Автор: XiaoChuan Wang, Mehdi Keshtkar, Renee Laurel Anseeuw, Ian Robert Gibbons, Gilbert Alexander Arnould
Принадлежит: NOVA Chemicals (International) S.A.

A closure comprising a polyethylene copolymer which has a density of from 0.940 to 0.962 g/cm, a melt index Iof less 1.5 g/10 min, high levels of unsaturation and low catalyst component residues, has excellent organoleptic properties. 1. A closure comprising a polyethylene copolymer which has a density of from 0.940 to 0.962 g/cm , a melt index Iof less 1.5 g/10 min , an amount of terminal unsaturation of at least 0.45 per 1000 carbon atoms , fewer than 0.9 parts per million of titanium and fewer than 0.4 parts per million of chromium.2. The closure of wherein the polyethylene copolymer has a density of from 0.947 to 0.960 g/cm.3. The closure of wherein the polyethylene copolymer comprises polymerized ethylene and 1-butene.4. The closure of wherein the polyethylene copolymer has a molecular weight distribution claim 1 , M/Mof from 5.0 to 16.0.5. The closure of wherein the closure is made by continuous compression molding.6. The closure of wherein the polyethylene copolymer has an environmental stress crack resistance claim 1 , ESCR claim 1 , at Condition B at 10% IGEPAL and 50° C. of from 10 to 100 hours.7. The closure of wherein the polyethylene copolymer has a total amount of unsaturation of at least 0.50 per 1000 carbon atoms.8. The closure of wherein the polyethylene copolymer has an average water taste testing score of greater than 4.9. The closure of wherein the polyethylene copolymer is made in a solution phase polymerization reactor.10. The closure of wherein the polyethylene copolymer is made with a Ziegler-Natta catalyst. The present disclosure is directed to closures made from polyethylene compositions which have a density in the range of from about 0.940 to about 0.962 g/cm, a melt index of ≦1.5 g/10 min, high levels or unsaturation and low catalyst residues. The closures are made using, for example, continuous compression molding.One-piece closures, such as screw caps for bottles have recently been made from polyethylene resins. The use of high density ...

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Номер записи: 13
25-10-2018 дата публикации

Means For Increasing the Molecular Weight and Decreasing the Density of Ethylene Interpolymers Employing Homogeneous and Heterogeneous Catalyst Formulations

Номер: US20180305531A1
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A.

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. 2. The ethylene interpolymer product according to claim 1 , further comprising one or more of the following:(i) greater than or equal to about 0.02 terminal vinyl unsaturations per 100 carbon atoms;(ii) greater than or equal to about 0.12 parts per million (ppm) of a total catalytic metal.3. The ethylene interpolymer product according to having a melt index from about 0.3 to about 500 dg/minute; wherein melt index is measured according to ASTM D1238 (2.16 kg load and 190° C.).4. The ethylene interpolymer product according to having a density from about 0.862 to about 0.975 g/cc; wherein density is measured according to ASTM D792.5. The ethylene interpolymer product according to having a M/Mfrom about 2 to about 25.6. The ethylene interpolymer product according to having a CDBIfrom about 20% to about 98%.10. The ethylene interpolymer product according to manufactured using a solution polymerization process.11. The ethylene interpolymer product according to further comprising from 0 to about 10 ...

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Номер записи: 14
15-10-2019 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations

Номер: US0010442920B2
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A., NOVA CHEM INT SA

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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Номер записи: 15
20-02-2020 дата публикации

Means For Increasing the Molecular Weight and Decreasing the Density of Ethylene Interpolymers Employing Mixed Homogeneous Catalyst Formulations

Номер: US20200056024A1
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A.

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. 135-. (canceled)37. The process according to further comprising:a) adding a catalyst deactivator A to the second exit stream, downstream of the second reactor, forming a deactivated solution A; or adding a catalyst deactivator B to the third exit stream, downstream of the third reactor, forming a deactivated solution B;b) phase separating deactivated solution A or deactivated solution B to recover the ethylene interpolymer product.38. The process according to claim 37 , further comprising:c) adding a passivator to deactivated solution A or deactivated solution B forming a passivated solution, with the proviso that step c) omitted if the heterogeneous catalyst formulation is not added to the third reactor, andd) phase separating said-deactivated solution A or deactivated solution B, or the passivated solution, to recover the ethylene interpolymer product.40. The process according to claim 39 , having the following molar ratios in the first reactor:{'sup': 'A', 'component Bto ...

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Номер записи: 16
15-10-2020 дата публикации

MANUFACTURING ETHLENE INTERPOLYMER PRODUCTS AT HIGHER PRODUCTION RATE

Номер: US20200325258A1
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Taylor, Mehdi Keshtkar, KAZEMI NIOUSHA, KLECZEK MONIKA, KONAGANTI VINOD, GILLON BRONWYN, GOYAL SHIVENDRA, SIBTAIN FAZLE, KASIRI SEPIDEH, SALOMONS STEPHEN, TAYLOR KENNETH, KESHTKAR MEHDI, Kazemi, Niousha, Kleczek, Monika, Konaganti, Vinod, Gillon, Bronwyn, Goyal, Shivendra, Sibtain, Fazle, Kasiri, Sepideh, Salomons, Stephen, Taylor, Kenneth, Keshtkar, Mehdi
Принадлежит: NOVA Chemicals (International) S.A.

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. 2. The process of claim 1 , wherein component A further comprises a hindered phenol.3. The process of claim 1 , wherein component M is methylalumoxane (MMAO-7) claim 1 , component B is trityl tetrakis (pentafluoro-phenyl) borate claim 1 , and component P is 2 claim 1 ,6-di-tert-butyl-4-ethylphenol.4. The process of claim 1 , further comprising the injection of the bridged metallocene catalyst formulation into the one or more reactors at a catalyst inlet temperature from 20° C. to 70° C.5. The process of claim 1 , further comprising the injection of the bridged metallocene catalyst formulation into the one or more reactor at a catalyst inlet temperature from 80° C. to 180° C.6. The process of claim 1 , wherein the process solvent is one or more Cto Calkanes.7. The process of claim 1 , wherein the one or more reactors operate at a temperature from 80° C. to 300° C. and a pressure from 3 MPag to 45 MPag.8. The process of claim 1 , wherein the process solvent in the one or ...

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Номер записи: 17
25-06-2015 дата публикации

POLYETHYLENE COMPOSITION FOR EXTRUSION COATING

Номер: US20150175827A1
Автор: Mehdi Keshtkar, Tieqi Li
Принадлежит: NOVA Chemicals (International) S.A.

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. 1. An extrusion coating composition comprising about 95 to about 75 weight percent (based on the weight of the composition) of a high pressure low density polyethylene produced in a tubular reactor and having a melt index Iof from about 2 to about 10 g/10 min; and about 25 to about 5 weight percent (based on the weight of the composition) of a high density polyethylene having a melt index Iof from greater than 0.1 g/10 min. to less than 1 g/10 min.; wherein the extrusion coating composition has a density of from about 0.918 to about 0.932 g/cmand an entanglement density which is at least 10% higher than the entanglement density of the high pressure low density polyethylene produced in a tubular reactor; wherein melt index is measured according to ASTM D-1238 (using a 2.16 kg weight at 190° C.) and density is measured according to ASTM D-792.2. The extrusion coating composition of wherein the high pressure low density polyethylene produced in a tubular reactor has a density of from 0.914 to 0.930 g/cm.3. The extrusion coating composition of wherein the high pressure low density polyethylene produced in a tubular reactor has a M/Mof at least 8.0.4. The extrusion coating composition of wherein the high pressure low density polyethylene produced in a tubular reactor has a melt index Iof from greater than 3 g/10 min. to 9 g/10 min.5. The extrusion coating composition of wherein the high density polyethylene has a density of greater than 0.940 g/cmto 0.950 g/cm.6. The extrusion coating composition of wherein the high density polyethylene has a melt index Iof from greater than 0.1 g/10 min. to 0.7 g/10 min.7. The extrusion coating composition of wherein the high density polyethylene has a ...

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Номер записи: 18
09-05-2019 дата публикации

PROCESS TO MANUFACTURE ETHYLENE INTERPOLYMER PRODUCTS

Номер: US20190135960A1
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Kumar Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Edward Taylor, Mehdi Keshtkar, KAZEMI NIOUSHA, KLECZEK MONIKA, KONAGANTI VINOD, GILLON BRONWYN, GOYAL SHIVENDRA KUMAR, SIBTAIN FAZLE, KASIRI SEPIDEH, SALOMONS STEPHEN, TAYLOR KENNETH EDWARD, KESHTKAR MEHDI, Kazemi, Niousha, Kleczek, Monika, Konaganti, Vinod, Gillon, Bronwyn, Goyal, Shivendra Kumar, Sibtain, Fazle, Kasiri, Sepideh, Salomons, Stephen, Taylor, Kenneth Edward, Keshtkar, Mehdi
Принадлежит: NOVA Chemicals (International) S.A.

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. 3. The improved process according to having the following molar ratios: a molar ratio of said component B to said component A from 0.3:1 to 10:1; a molar ratio of said component M to said component A from 1:1 to 300:1 claim 2 , and; a molar ratio of said optional component P to said component M from 0.0:1 to 1:1.4. The improved process according to wherein component M is methylalumoxane (MMAO-7) claim 2 , component B is trityl tetrakis (pentafluoro-phenyl) borate and component P is 2 claim 2 ,6-di-tert-butyl-4-ethylphenol.5. The improved process according to claim 2 , further comprising the injection of said bridged metallocene catalyst formulation into said one or more reactors at a catalyst inlet temperature from 20° C. to 70° C.; optionally claim 2 , said component M and said component P may be deleted from said bridged metallocene catalyst formulation and replaced with a component J defined by the formula Al(R)(OR) claim 2 , wherein the (R) groups may be the same or different hydrocarbyl groups having from 1 to 10 ...

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Номер записи: 19
25-05-2021 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing mixed homogeneous catalyst formulations

Номер: US0011015044B2
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A., NOVA CHEM INT SA

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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Номер записи: 20
25-10-2018 дата публикации

Means For Increasing the Molecular Weight and Decreasing the Density of Ethylene Interpolymers Employing Mixed Homogeneous Catalyst Formulations

Номер: US20180305532A1
Автор: 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, 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, VANASSELDONK LAWRENCE, KHAKDAMAN HAMIDREZA, 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, VanAsseldonk, Lawrence, Khakdaman, Hamidreza
Принадлежит: NOVA Chemicals (International) S.A.

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. 1. An ethylene interpolymer product comprising:(i) a first ethylene interpolymer;(ii) a second ethylene interpolymer, and;(iii) optionally a third ethylene interpolymer;wherein said ethylene interpolymer product has a dimensionless Long Chain Branching Factor, LCBF, greater than or equal to about 0.001;wherein said ethylene interpolymer product has from about 0.0015 parts per million (ppm) to about 2.4 ppm of hafnium, and;wherein said ethylene interpolymer product has from about 0.006 parts per million (ppm) to about 5.7 ppm of titanium.2. The ethylene interpolymer product according to claim 1 , further comprising one or more of the following:(i) less than or equal to about 0.01 terminal vinyl unsaturations per 100 carbon atoms;(ii) from about 0.03 ppm to about 6.0 ppm of a total catalytic metal.3. The ethylene interpolymer product according to having a melt index from about 0.3 to about 500 dg/minute; wherein melt index is measured according to ASTM D1238 (2.16 kg load and 190° ...

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Номер записи: 21
09-05-2019 дата публикации

MANUFACTURING ETHYLENE INTERPOLYMER PRODUCTS AT HIGHER PRODUCTION RATE

Номер: US20190135959A1
Автор: Niousha Kazemi, Monika Kleczek, Vinod Konaganti, Bronwyn Gillon, Shivendra Kumar Goyal, Fazle Sibtain, Sepideh Kasiri, Stephen Salomons, Kenneth Edward Taylor, Mehdi Keshtkar
Принадлежит: NOVA Chemicals (International) S.A.

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. 125-. (canceled)26. A improved continuous solution polymerization process , wherein said improved process comprises the following:polymerizing ethylene, and optionally at least one α-olefin, in a process solvent, in one or more reactors and employing at least one bridged metallocene catalyst formulation to form an ethylene interpolymer product;{'sup': 'I', 'claim-text': {'br': None, 'sup': I', 'A', 'C', 'C, 'PR=100×(PR−PR)/PR≥10%'}, 'wherein, said improved process as an increased production rate, PR, defined by the following formula;'}{'sup': A', 'C, 'where PRis the production rate of said improved process and PRis a comparative production rate of a comparative process wherein said one or more bridged metallocene catalyst formulation has been replaced with an unbridged single site catalyst formulation.'}282. The improved process according to claim having the following molar ratios: a molar ratio of said component B to said component A from 0.3:1 to 10:1; a molar ratio of ...

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Номер записи: 22
25-06-2015 дата публикации

Polyethylene composition for extrusion coating

Номер: WO2015092662A1
Автор: Mehdi Keshtkar, Tieqi LI
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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.

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Номер записи: 23
05-02-2020 дата публикации

IMPROVED PROCESS FOR MANUFACTURING ETHYLENE INTERPOLYMER PRODUCTS

Номер: AR113190A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

Un proceso de polimerización en solución mejorado en donde el peso molecular de un producto de interpolímero de etileno puede incrementarse en relación con un proceso comparativo; o, a un peso molecular constante del interpolímero de etileno, el proceso mejorado puede ser operado a una temperatura de polimerización mayor en relación con el proceso comparativo. Esta también se refiere a un proceso de polimerización en solución mejorado, en donde un producto de interpolímero de etileno a la densidad buscada puede ser producido a una relación en peso menor [a-olefina / etileno] en el reactor, con relación a un proceso comparativo. Se inyectan solvente de proceso, etileno, co-monómeros opcionales, hidrógeno opcional, y una formulación de catalizador de metaloceno en puente en uno o más reactores para formar el producto de interpolímero de etileno. Posteriormente, el catalizador se desactiva, la solución es opcionalmente pasivada y, después de un proceso de separación de fases, se recupera el producto de interpolímero de etileno. An improved solution polymerization process where the molecular weight of an ethylene interpolymer product can be increased relative to a comparative process; or, at a constant molecular weight of the ethylene interpolymer, the improved process can be operated at a higher polymerization temperature relative to the comparative process. This also refers to an improved solution polymerization process, where an ethylene interpolymer product at the desired density can be produced at a lower weight ratio [α-olefin / ethylene] in the reactor, relative to an comparative. 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. Subsequently, the catalyst is deactivated, the solution is optionally passivated and, after a phase separation process, the ethylene interpolymer product is recovered.

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Номер записи: 24
28-08-2020 дата публикации

Manufacture of ethylene interpolymer products at a higher production rate.

Номер: CL2020001204A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

ESTA DIVULGACIÓN SE REFIERE A UN PROCESO CONTINUO MEJORADO DE POLIMERIZACIÓN EN SOLUCIÓN EN DONDE SE AUMENTA LA VELOCIDAD DE PRODUCCIÓN. EN UN PRIMER REACTOR SE INYECTAN: DISOLVENTE DE PROCESO, ETILENO, COMONÓMEROS OPCIONALES, HIDRÓGENO OPCIONAL Y UNA FORMULACIÓN DE CATALIZADOR METALOCÉNICO PUENTEADO PARA FORMAR UN PRIMER INTERPOLÍMERO DE ETILENO. OPCIONALMENTE, EN UN SEGUNDO REACTOR SE INYECTAN: DISOLVENTE DE PROCESO, ETILENO, COMONÓMEROS OPCIONALES, HIDRÓGENO OPCIONAL Y UNA FORMULACIÓN DE CATALIZADOR METALOCÉNICO PUENTEADO PARA FORMAR UN SEGUNDO INTERPOLÍMERO DE ETILENO. LOS PRIMER Y SEGUNDO REACTORES PUEDEN CONFIGURARSE EN LOS MODOS DE OPERACIÓN EN SERIE O EN PARALELO. OPCIONALMENTE, SE FORMA UN TERCER INTERPOLÍMERO DE ETILENO EN UN TERCER REACTOR, EN DONDE SE EMPLEA UNA FORMULACIÓN DE CATALIZADOR HOMOGÉNEO O UNA FORMULACIÓN DE CATALIZADOR HETEROGÉNEO. EN LA SOLUCIÓN, SE COMBINAN LOS PRIMER, SEGUNDO OPCIONAL Y TERCER OPCIONAL INTERPOLÍMEROS DE ETILENO, SE DESACTIVA EL CATALIZADOR, OPCIONALMENTE LA SOLUCIÓN SE HACE PASIVA Y DESPUÉS DE UN PROCESO DE SEPARACIÓN DE FASES SE RECUPERA UN PRODUCTO INTERPOLIMÉRICO DE ETILENO. THIS DISCLOSURE REFERS TO AN IMPROVED CONTINUOUS PROCESS OF SOLUTION POLYMERIZATION WHERE THE PRODUCTION SPEED IS INCREASED. INJECTED INTO A FIRST REACTOR: PROCESS SOLVENT, ETHYLENE, OPTIONAL COMMONOMERS, OPTIONAL HYDROGEN AND A BRIDGED METALOCENE CATALYST FORMULATION TO FORM A FIRST ETHYLENE INTERPOLYMER. OPTIONALLY INTO A SECOND REACTOR: PROCESS SOLVENT, ETHYLENE, OPTIONAL COMMONOMERS, OPTIONAL HYDROGEN AND A BRIDGED METALLOCENE CATALYST FORMULATION TO FORM A SECOND INTERPOLYMER OF ETHYLENE. THE FIRST AND SECOND REACTORS CAN BE CONFIGURED IN SERIES OR PARALLEL OPERATION MODES. OPTIONALLY, A THIRD ETHYLENE INTERPOLYMER IS FORMED IN A THIRD REACTOR, WHERE A HOMOGENEOUS CATALYST FORMULATION OR A HETEROGENEOUS CATALYST FORMULATION IS USED. IN THE SOLUTION, THE FIRST, SECOND OPTIONAL AND THIRD OPTIONAL ETHYLENE INTERPOLYMERS ARE COMBINED, THE CATALYST ...

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Номер записи: 25
30-09-2021 дата публикации

Nonlinear rheology of ethylene interpolymer compositions

Номер: WO2021191814A2
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Soheil Sadeghi, Stephen Salomons, Vinod Konaganti, Zengrong Zhang
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 26
16-05-2019 дата публикации

Manufacturing ethylene interpolymer products at higher production rate

Номер: WO2019092523A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 27
24-06-2021 дата публикации

Processes for producing polyethylene containing recycled polymeric material

Номер: WO2021124157A1
Автор: Brian Molloy, Eric Clavelle, Fazle Sibtain, Mehdi Keshtkar, Niousha Kazemi, Yves Lacombe
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 28
25-10-2018 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations

Номер: WO2018193375A1
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VAN ASSELDONK, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 29
15-12-2020 дата публикации

An improved process to manufacture ethylene interpolymer products

Номер: CA2984838C
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals Corp

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 [.alpha.-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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Номер записи: 30
21-05-2020 дата публикации

Ethylene interpolymer products and films

Номер: AU2018364534A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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 = (SC

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Номер записи: 31
21-05-2020 дата публикации

An improved process to manufacture ethylene interpolymer products

Номер: AU2018364579A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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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Номер записи: 32
25-10-2018 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing mixed homogeneous catalyst formulations

Номер: WO2018193331A1
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VAN ASSELDONK, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 33
16-05-2019 дата публикации

An improved process to manufacture ethylene interpolymer products

Номер: WO2019092525A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 34
17-07-2019 дата публикации

MEANS TO INCREASE THE MOLECULAR WEIGHT AND REDUCE THE DENSITY OF THE ETHYLENE INTERPOLYMERS THROUGH THE USE OF FORMULATIONS OF HOMOGENEOUS AND HETEROGENIC CATALYSTS

Номер: AR111477A1
Автор: Asseldonk Lawrence Van, Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chem Int Sa

Un proceso continuo de polimerización en solución en el que se emplean por lo menos dos formulaciones de catalizadores. Se emplea una primera formulación de catalizador homogéneo en un primer reactor para producir un primer interpolímero de etileno y se emplea una primera formulación de catalizador heterogéneo en un segundo reactor para producir un segundo interpolímero de etileno. Opcionalmente, en un tercer reactor se forma un tercer interpolímero de etileno. Los productos de interpolímeros de etileno que se obtienen como resultado poseen propiedades deseables en una variedad de aplicaciones de uso final, por ejemplo en aplicaciones en películas. Se divulga un medio para incrementar el peso molecular del primer interpolímero de etileno y/o un medio para incrementar la temperatura del primer reactor, con relación a una tercera formulación de catalizador homogéneo. Se divulga un medio para reducir la proporción en peso de (a-olefina / etileno) en el primer reactor y/o reducir la densidad del primer interpolímero de etileno, con relación a una tercera formulación de catalizador homogéneo. A continuous solution polymerization process in which at least two catalyst formulations are employed. A first homogeneous catalyst formulation is used in a first reactor to produce a first ethylene interpolymer and a first heterogeneous catalyst formulation is used in a second reactor to produce a second ethylene interpolymer. Optionally, a third ethylene interpolymer is formed in a third reactor. The ethylene interpolymer products that are obtained as a result 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 and / or a means for increasing the temperature of the first reactor in relation to a third homogeneous catalyst formulation is disclosed. A means for reducing the weight ratio of (a-olefin / ethylene) in the first reactor and / or reducing the ...

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Номер записи: 35
24-07-2019 дата публикации

MEANS TO INCREASE THE MOLECULAR WEIGHT AND REDUCE THE DENSITY OF ETHYLENE INTERPOLYMERS THROUGH THE USE OF MIXED FORMULATIONS OF HOMOGENAL CATALYSTS

Номер: AR111560A1
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VanAsseldonk, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chem Int Sa

Un proceso continuo de polimerización en solución en el que se emplean por lo menos dos formulaciones de catalizadores. Se emplea una primera formulación de catalizador homogéneo en un primer reactor para producir un primer interpolímero de etileno y se emplea una primera formulación de catalizador heterogéneo en un segundo reactor para producir un segundo interpolímero de etileno. Opcionalmente, en un tercer reactor se forma un tercer interpolímero de etileno. Los productos de interpolímeros de etileno que se obtienen como resultado poseen propiedades deseables en una variedad de aplicaciones de uso final, por ejemplo en aplicaciones en películas. Se divulga un medio para incrementar el peso molecular del primer interpolímero de etileno y/o un medio para incrementar la temperatura del primer reactor, con relación a una tercera formulación de catalizador homogéneo. Se divulga un medio para reducir la proporción en peso de (a-olefina / etileno) en el primer reactor y/o reducir la densidad del primer interpolímero de etileno, con relación a una tercera formulación de catalizador homogéneo. A continuous solution polymerization process in which at least two catalyst formulations are employed. A first homogeneous catalyst formulation is used in a first reactor to produce a first ethylene interpolymer and a first heterogeneous catalyst formulation is used in a second reactor to produce a second ethylene interpolymer. Optionally, a third ethylene interpolymer is formed in a third reactor. The ethylene interpolymer products that are obtained as a result 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 and / or a means for increasing the temperature of the first reactor in relation to a third homogeneous catalyst formulation is disclosed. A means for reducing the weight ratio of (a-olefin / ethylene) in the first reactor and / or reducing the ...

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Номер записи: 36
07-12-2017 дата публикации

Closure having excellent organoleptic performance

Номер: WO2017208106A1
Автор: Gilbert Arnould, Ian Gibbons, Mehdi Keshtkar, Renee ANSEEUW, XiaoChuan Wang
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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.

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Номер записи: 37
16-05-2019 дата публикации

Ethylene interpolymer products and films

Номер: WO2019092524A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

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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Номер записи: 38
19-06-2015 дата публикации

Polyethylene composition for extrusion coating

Номер: CA2837591A1
Автор: Mehdi Keshtkar, Tieqi LI
Принадлежит: Nova Chemicals Corp

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.

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Номер записи: 39
19-02-2020 дата публикации

MANUFACTURE OF ETHYLENE INTERPOLYMER PRODUCTS

Номер: AR113239A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

Un proceso continuo de polimerización en solución mejorado en donde: se inyectan solvente de proceso, etileno, co-monómeros opcionales, hidrógeno opcional, y una formulación de catalizador de metaloceno en puente en un primer reactor para formar un primer interpolímero de etileno. Opcionalmente, se inyectan solvente de proceso, etileno, co-monómeros opcionales, hidrógeno opcional, y una formulación de catalizador de metaloceno en puente en un segundo reactor para formar un segundo interpolímero de etileno. El primer y el segundo reactores pueden estar configurados en modo de operación en serie o en paralelo. Opcionalmente, se forma un tercer interpolímero de etileno en un tercer reactor, en donde se emplea una formulación de catalizador homogénea o una formulación de catalizador heterogénea. En solución, el primer interpolímero de etileno, el segundo interpolímero de etileno opcional y el tercer interpolímero de etileno opcional se combinan, el catalizador se desactiva, la solución es opcionalmente pasivada y, después de un proceso de separación de fases, se recupera un producto de interpolímero de etileno. An improved continuous solution polymerization process wherein: 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 to form a second ethylene interpolymer. The first and second reactors can be configured in series or parallel mode of operation. Optionally, a third ethylene interpolymer is formed in a third reactor, where a homogeneous catalyst formulation or a heterogeneous catalyst formulation is employed. In solution, the first ethylene interpolymer, the second optional ethylene interpolymer, and the third optional ethylene interpolymer are combined, the catalyst is ...

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Номер записи: 40
16-09-2020 дата публикации

Manufacturing ethylene interpolymer products at higher production rate

Номер: EP3707170A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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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Номер записи: 41
21-05-2020 дата публикации

Manufacturing ethylene interpolymer products at higher production rate

Номер: AU2018364533A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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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Номер записи: 42
20-10-2020 дата публикации

manufacture of ethylene interpolymers at a higher production rate

Номер: BR112020008865A2
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

Esta divulgação se refere a um processo de polimerização em solução contínua aprimorado em que a taxa de produção é aumentada. Solvente do processo, etileno, comonômero opcional, hidrogênio opcional e uma formulação de catalisador de metaloceno ligado em ponte são injetados em um primeiro reator para formar um primeiro interpolímero de etileno. Opcionalmente, solvente do processo, etileno, comonômero opcional, hidrogênio opcional e uma formulação de catalisador de metaloceno ligado em ponte são injetados em um segundo reator formando um segundo interpolímero de etileno. O primeiro e segundo reatores podem ser configurados modos em série ou paralelos de operação. Opcionalmente, um terceiro interpolímero de etileno é formado em um terceiro reator, em que uma formulação de catalisador homogênea ou uma formulação de catalisador heterogênea é utilizada. Em solução, o primeiro, segundo e terceiro interpolímeros de etileno opcionais são combinados, o catalisador é desativado, a solução é opcionalmente passivada e após um processo de separação de fase um produto interpolímero de etileno é recuperado. This disclosure refers to an improved continuous solution polymerization process in which the production rate is increased. Process solvent, ethylene, optional comonomer, 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 comonomer, optional hydrogen and a bridged metallocene catalyst formulation are injected into a second reactor forming a second ethylene interpolymer. The first and second reactors can be configured in series or parallel modes of operation. Optionally, a third ethylene interpolymer is formed in a third reactor, in which a homogeneous catalyst formulation or a heterogeneous catalyst formulation is used. In solution, the optional first, second and third ethylene interpolymers are combined, the catalyst is deactivated, the ...

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Номер записи: 43
24-07-2020 дата публикации

Manufactura de productos de interpolimero de etileno a una mayor tasa de produccion.

Номер: MX2020004454A
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

Esta invención se refiere a un proceso de polimerización en solución continua mejorado en el que se incrementa la velocidad de producción. Solvente de proceso, etileno, monómeros opcionales, hidrógeno opcional y una formulación de catalizador de metaloceno puenteada se inyectan en un primer reactor para formar un primer interpolímero de etileno. Opcionalmente, el solvente de proceso, etileno, monómeros opcionales, hidrógeno opcional y una formulación de catalizador de metaloceno puenteada se inyectan en un segundo reactor formado un segundo interpolímero de etileno. El primero y segundo reactores pueden configurarse en modos de operación en serie o en paralelo. Opcionalmente, se forma un tercer interpolímero de etileno en un tercer reactor, en donde se emplea una formulación de catalizador homogénea o una formulación de catalizador heterogénea. En solución, el primer, el segundo y el tercer interpolímeros de etileno opcionales se combinan, el catalizador se desactiva, la solución se pasiva opcionalmente y después de un proceso de separación de fases se recupera un producto de interpolímero de etileno.

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Номер записи: 44
21-01-2021 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations

Номер: AU2018254004B2
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VAN ASSELDONK, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chemicals International SA

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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Номер записи: 45
05-02-2020 дата публикации

FILMS AND PRODUCTS OF ETHYLENE INTERPOLYMERS

Номер: AR113189A1
Автор: Bronwyn Gillon, Fazle Sibtain, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

Composiciones de interpolímero de etileno y a películas preparadas con las mismas; específicamente, productos de interpolímeros de etileno que tienen: un Factor de Ramificación de Cadena Larga sin dimensión, LCBF, mayor que o igual a 0,001; un metal catalítico residual de desde ³ 0,03 hasta £ 5 ppm de hafnio, y una proporción de insaturación sin dimensión, UR, de desde ³ -0,40 hasta £ 0,06, donde UR se define por la siguiente relación; UR = (SCU - TU) / TU, donde, SCU es la cantidad de una saturación de la cadena lateral por 100 carbonos y TU es la cantidad de una insaturación terminal por 100 carbonos, en dicho producto de interpolímero de etileno. Los productos de interpolímeros de etileno divulgados tienen un índice de fusión de aproximadamente 0,3 a aproximadamente 500 dg/minuto, una densidad de aproximadamente 0,855 a aproximadamente 0,975 g/cc, una polidispersidad (Mʷ/Mₙ) de aproximadamente 1,7 a aproximadamente 25 y una Amplitud de Distribución de la Composición (CDBI₅₀) de aproximadamente 1% a aproximadamente 98%. Ethylene interpolymer compositions and films made 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 ³ 0.03 to £ 5 ppm hafnium, and a dimensionless unsaturation ratio, UR, of from ³ -0.40 to £ 0.06, where UR is defined by the following relationship; UR = (SCU - TU) / TU, where, SCU is the amount of a saturation of the side chain per 100 carbons and TU is the amount of a terminal unsaturation per 100 carbons, in said ethylene interpolymer product. The disclosed ethylene interpolymer products have a melt index of about 0.3 to about 500 dg / minute, a density of about 0.855 to about 0.975 g / cc, a polydispersity (Mʷ / Mₙ) of about 1.7 to about 25 and a Composition Distribution Width (CDBI₅₀) of about 1% to about 98%.

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Номер записи: 46
24-07-2020 дата публикации

Productos y peliculas de interpolimero de etileno.

Номер: MX2020004456A
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

Esta descripción se refiere a composiciones de interpolímero de etileno y películas preparadas a partir de las mismas. Específicamente: productos de interpolímero de etileno que tienen: un factor de ramificación de cadena larga adimensional, LCBF, mayor o igual a 0.001; un metal catalítico residual de = 0.03 a = 5 ppm de hafnio, y; una relación de insaturación adimensional, UR, de = -0.40 a = 0.06, en donde UR es definida por la siguiente relación; UR = (SCU-TU)/TU, donde SCU es la cantidad de una insaturación de cadena lateral por 100 carbonos y TU es la cantidad de una insaturación terminal por 100 carbonos, en el producto de interpolímero de etileno. Los productos de interpolímero de etileno descritos tienen un índice de fusión de aproximadamente 0.3 a aproximadamente 500 dg/minuto, una densidad de aproximadamente 0.855 a aproximadamente 0.975 g/cc, una polidispersidad (Mw/Mn) de aproximadamente 1.7 a aproximadamente 25 y un índice de amplitud de distribución de composición (CDBI50) de aproximadamente 1% a aproximadamente 98%.

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Номер записи: 47
06-10-2020 дата публикации

ethylene interpolymer products and films

Номер: BR112020009023A2
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

A presente invenção refere-se a composições de interpolímero de etileno e filmes preparados a partir dos mesmos. Especificamente: produtos de interpolímero de etileno tendo: um Fator de Ramificação de Cadeia Longa adimensional, LCBF, maior do que ou igual a 0,001; um metal catalítico residual de = 0,03 a = 5 ppm de háfnio, e; uma razão de insaturação adimensional, UR, de = -0,40 a = 0,06, em que UR é definida pela seguinte relação; UR = (SCU-TU)/TU, em que SCU é a quantidade de uma insaturação de cadeia lateral por 100 carbonos e TU é a quantidade de uma insaturação terminal por 100 carbonos, no referido produto de interpolímero de etileno. Os produtos de interpolímero de etileno divulgados têm um índice de fusão de cerca de 0,3 a cerca de 500 dg/minuto, uma densidade de cerca de 0,855 a cerca de 0,975 g/cc, uma polidispersividade (Mw/Mn) de cerca de 1,7 a cerca de 25 e a Índice de Amplitude de Distribuição de Composição (CDBI50) de cerca de 1% a cerca de 98%. The present invention 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 = 0.03 to = 5 ppm of hafnium, and; a dimensionless unsaturation ratio, UR, from = -0.40 to = 0.06, where UR is defined by the following relationship; UR = (SCU-TU) / TU, where SCU is the amount of a 100-carbon side chain unsaturation and TU is the amount of a 100-carbon terminal unsaturation in said ethylene interpolymer product. The disclosed ethylene interpolymer products have a melt index of about 0.3 to about 500 dg / minute, a density of about 0.855 to about 0.975 g / cc, a polydispersity (Mw / Mn) of about 1.7 to about 25 and the Composition Distribution Amplitude Index (CDBI50) from about 1% to about 98%.

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Номер записи: 48
16-09-2020 дата публикации

Ethylene interpolymer products and films

Номер: EP3707176A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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 = (SC 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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Номер записи: 49
28-08-2020 дата публикации

Películas y productos de interpolímero de etileno.

Номер: CL2020001198A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chem Int Sa

LA DIVULGACIÓN SE REFIERE A COMPOSICIONES DE INTERPOLÍMERO DE ETILENO Y A PELÍCULAS PREPARADAS A PARTIR DE ESTAS. ESPECÍFICAMENTE: PRODUCTO DE INTERPOLÍMERO DE ETILENO QUE CONTIENE: UN FACTOR DE RAMIFICACIÓN DE CADENA LARGA ADIMENSIONAL, LCBF, MAYOR O IGUAL QUE 0,001; UN METAL CATALÍTICO RESIDUAL DE ≥0,03 A ≤5 PPM DE HAFNIO Y; UNA RELACIÓN DE INSATURACIÓN ADIMENSIONAL, UR, DE ≥-0,40 A ≤0,06, EN DONDE UR SE DEFINE POR LA SIGUIENTE RELACIÓN; UR = (SCU-TU)/TU, DONDE SCU ES LA CANTIDAD DE UNA INSATURACIÓN DE CADENA LATERAL POR 100 CARBONOS Y TU ES LA CANTIDAD DE UNA INSATURACIÓN TERMINAL POR 100 CARBONOS, EN DICHO PRODUCTO INTERPOLÍMERO DE ETILENO. LOS PRODUCTOS DE INTERPOLÍMERO DE ETILENO DESCRITOS TIENEN UN ÍNDICE DE FUSIÓN DE APROXIMADAMENTE 0,3 A APROXIMADAMENTE 500 DG/MIN, UNA DENSIDAD DE APROXIMADAMENTE 0,855 A APROXIMADAMENTE 0,975 G/CC, UNA POLIDISPERSIDAD (MW/MN) DE APROXIMADAMENTE 1,7 A APROXIMADAMENTE 25 Y UN ÍNDICE DE AMPLITUD DE DISTRIBUCIÓN DE COMPOSICIÓN (CDBI50) DE APROXIMADAMENTE1% A APROXIMADAMENTE 98%.

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Номер записи: 50
07-02-2020 дата публикации

Medios para aumentar el peso molecular y disminuir la densidad de los interpolímeros de etileno usando formulaciones catalizadoras homogéneas y heterogéneas.

Номер: CL2019002999A1
Автор: Asseldonk Lawrence Van, Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chem Int Sa

SE DIVULGA UN PROCESO DE POLIMERIZACIÓN DE SOLUCIÓN CONTINUA CARACTERIZADO PORQUE SE EMPLEAN AL MENOS DOS FORMULACIONES CATALIZADORAS. SE EMPLEA UNA PRIMERA FORMULACIÓN CATALIZADORA HOMOGÉNEA EN UN PRIMER REACTOR PARA PRODUCIR UN PRIMER INTERPOLÍMERO DE ETILENO Y SE EMPLEA UNA PRIMERA FORMULACIÓN CATALIZADORA HETEROGÉNEA EN UN SEGUNDO REACTOR PARA PRODUCIR UN SEGUNDO INTERPOLÍMERO DE ETILENO. OPCIONALMENTE, SE FORMA UN TERCER INTERPOLÍMERO DE ETILENO EN UN TERCER REACTOR. LOS PRODUCTOS DE INTERPOLÍMERO DE ETILENO RESULTANTES POSEEN PROPIEDADES DESEABLES EN VARIAS APLICACIONES DE USO FINAL, POR EJEMPLO, EN APLICACIONES DE PELÍCULA. SE DIVULGA UN MEDIO PARA AUMENTAR EL PESO MOLECULAR DEL PRIMER INTERPOLÍMERO DE ETILENO Y/O UN MEDIO PARA AUMENTAR LA TEMPERATURA DEL PRIMER REACTOR, EN RELACIÓN CON UNA TERCERA FORMULACIÓN CATALIZADORA HOMOGÉNEA. SE DIVULGA UN MEDIO PARA REDUCIR LA PROPORCIÓN DE PESO (a-OLEFINA/ETILENO) EN EL PRIMER REACTOR Y/O PARA REDUCIR LA DENSIDAD DEL PRIMER INTERPOLÍMERO DE ETILENO EN RELACIÓN CON UNA TERCERA FORMULACIÓN CATALIZADORA HOMOGÉNEA.

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Номер записи: 51
30-11-2017 дата публикации

Closure having excellent organoleptic performance

Номер: CA2931488A1
Автор: Gilbert Alexander Arnould, Ian Robert Gibbons, Mehdi Keshtkar, Renee Laurel Anseeuw, XiaoChuan Wang
Принадлежит: Nova Chemicals Corp

A closure comprising a polyethylene copolymer which has a density of from 0.940 to 0.962 g/cm3, a melt index I2 of less 1.5 g/10 min, high levels of unsaturation and low catalyst component residues, has excellent organoleptic properties.

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Номер записи: 52
16-09-2020 дата публикации

An improved process to manufacture ethylene interpolymer products

Номер: EP3707177A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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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Номер записи: 53
14-02-2020 дата публикации

Means to increase the molecular weight and decrease the density of ethylene interpolymers using homogeneous catalyst formulations.

Номер: CL2019002997A1
Автор: Asseldonk Lawrence Van, Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chem Int Sa

UN PROCESO CONTINUO DE POLIMERIZACIÓN EN SOLUCIÓN EN EL QUE SE EMPLEAN POR LO MENOS DOS FORMULACIONES DE CATALIZADORES. SE EMPLEA UNA PRIMERA FORMULACIÓN DE CATALIZADOR HOMOGÉNEO EN UN PRIMER REACTOR PARA PRODUCIR UN PRIMER INTERPOLÍMERO DE ETILENO Y SE EMPLEA UNA PRIMERA FORMULACIÓN DE CATALIZADOR HETEROGÉNEO EN UN SEGUNDO REACTOR PARA PRODUCIR UN SEGUNDO INTERPOLÍMERO DE ETILENO. OPCIONALMENTE, EN UN TERCER REACTOR SE FORMA UN TERCER INTERPOLÍMERO DE ETILENO. LOS PRODUCTOS DE INTERPOLÍMEROS DE ETILENO QUE SE OBTIENEN COMO RESULTADO POSEEN PROPIEDADES DESEABLES EN UNA VARIEDAD DE APLICACIONES DE USO FINAL, POR EJEMPLO EN APLICACIONES EN PELÍCULAS. SE DIVULGA UN MEDIO PARA INCREMENTAR EL PESO MOLECULAR DEL PRIMER INTERPOLÍMERO DE ETILENO Y/O UN MEDIO PARA INCREMENTAR LA TEMPERATURA DEL PRIMER REACTOR, CON RELACIÓN A UNA TERCERA FORMULACIÓN DE CATALIZADOR HOMOGÉNEO. SE DIVULGA UN MEDIO PARA REDUCIR LA PROPORCIÓN EN PESO DE (-OLEFINA/ETILENO) EN EL PRIMER REACTOR Y/O REDUCIR LA DENSIDAD DEL PRIMER INTERPOLÍMERO DE ETILENO, CON RELACIÓN A UNA TERCERA FORMULACIÓN DE CATALIZADOR HOMOGÉNEO.

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Номер записи: 54
07-05-2019 дата публикации

Ethylene interpolymer products and films

Номер: CA2984827A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals Corp

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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Номер записи: 55
24-06-2021 дата публикации

Processes for producing polyethylene containing recycled polymeric material

Номер: CA3161290A1
Автор: Brian Molloy, Eric Clavelle, Fazle Sibtain, Mehdi Keshtkar, Niousha Kazemi, Yves Lacombe
Принадлежит: Nova Chemicals Corp

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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Номер записи: 56
07-05-2019 дата публикации

Manufacturing ethylene interpolymer products at higher production rate

Номер: CA2984825A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals Corp

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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Номер записи: 57
19-10-2018 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations

Номер: CA2964565A1
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VanAsseldonk, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chemicals Corp

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 (.alpha.-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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Номер записи: 58
31-10-2019 дата публикации

Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing mixed homogeneous catalyst formulations

Номер: AU2018254206A1
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VAN ASSELDONK, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: Nova Chemicals International SA

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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Номер записи: 59
27-10-2020 дата публикации

an improved process for making ethylene interpolymer products

Номер: BR112020009028A2
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

&nbsp; Esta divulgação se refere a um processo de polimerização de solução melhorado em que o peso molecular de um produto de interpolímero de etileno pode ser aumentado em relação a um processo comparativo; ou em interpolímero de etileno de peso molecular constante o processo melhorado pode ser operado em temperatura de polimerização mais alta em relação ao processo comparativo. Esta divulgação também se refere a um processo de polimerização de solução melhorado em que um produto de interpolímero de etileno em densidade alvo pode ser produzido em uma razão em peso de [a-olefina/etileno] mais baixa no reator, em relação a um processo comparativo. Solvente do processo, etileno, comonômero opcional, hidrogênio opcional e uma formulação de catalisador de metaloceno ligado em ponte são injetados em um ou mais reatores para formar o produto de interpolímero de etileno. O catalisador é subsequentemente desativado, a solução é opcionalmente passivada e a seguir de um processo de separação de fase o produto de interpolímero de etileno é recuperado. &nbsp; This disclosure relates to an improved solution polymerization process in which the molecular weight of an ethylene interpolymer product can be increased over a comparative process; or in ethylene interpolymer of constant molecular weight the improved process can be operated at a higher polymerization temperature compared to the comparative process. This disclosure also refers to an improved solution polymerization process in which a target density ethylene interpolymer product can be produced at a lower [a-olefin / ethylene] weight ratio in the reactor, relative to a process comparative. Process solvent, ethylene, optional comonomer, 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 after a phase separation process the ethylene ...

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Номер записи: 60
03-10-2023 дата публикации

Manufacturing ethylene interpolymer products at higher production rate

Номер: US11773197B2
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: Nova Chemicals International SA

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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Номер записи: 61
30-05-2023 дата публикации

Produto de interpolímero de etileno e filme de polietileno

Номер: BR112019021869B1
Автор: Brian Molloy, Charles Carter, Christopher DOBBIN, Fazle Sibtain, Hamidreza Khakdaman, Kenneth Taylor, Lawrence VAN ASSELDONK, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Peter Zoricak, Qinyan Wang, Stephen Salomons, XiaoChuan Wang, Zengrong Zhang
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A

Um processo de polimerização de solução contínuo é divulgado em que pelo menos duas formulações de catalisador são utilizadas. Uma primeira formulação de catalisador homogêneo é utilizada em um primeiro reator para produzir um primeiro interpolímero de etileno e uma primeira formulação de catalisador heterogêneo é utilizada em um segundo reator para produzir um segundo interpolímero de etileno. Opcionalmente um terceiro interpolímero de etileno é formado em um tercei-ro reator. Os produtos de interpolímero de etileno resultantes possuem propriedades desejáveis em uma variedade de aplicações finais, por exemplo em aplicações de filme. Um meio para aumentar o peso molecular do primeiro interpolímero de etileno é divulgado e/ou um meio para aumentar a temperatura do primeiro reator, em relação a uma terceira formulação de catalisador homogêneo. Um meio para reduzir a razão em peso de (a-olefina/etileno) no primeiro reator é divulgado e/ou reduzir a densidade do primeiro interpolímero de etileno, em relação a uma terceira formulação de catalisador homogêneo.

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Номер записи: 62
18-07-2023 дата публикации

Produtos de interpolímero de etileno

Номер: BR112020009023B1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Stephen Salomons, Vinod Konaganti
Принадлежит: NOVA CHEMICALS (INTERNATIONAL) S.A.

A presente invenção refere-se a composições de interpolímero de etileno e filmes preparados a partir dos mesmos. Especificamente: produtos de interpolímero de etileno tendo: um Fator de Ramificação de Cadeia Longa adimensional, LCBF, maior do que ou igual a 0,001; um metal catalítico residual de = 0,03 a = 5 ppm de háfnio, e; uma razão de insaturação adimensional, UR, de = -0,40 a = 0,06, em que UR é definida pela seguinte relação; UR = (SCU-TU)/TU, em que SCU é a quantidade de uma insaturação de cadeia lateral por 100 carbonos e TU é a quantidade de uma insaturação terminal por 100 carbonos, no referido produto de interpolímero de etileno. Os produtos de interpolímero de etileno divulgados têm um índice de fusão de cerca de 0,3 a cerca de 500 dg/minuto, uma densidade de cerca de 0,855 a cerca de 0,975 g/cc, uma polidispersividade (Mw/Mn) de cerca de 1,7 a cerca de 25 e a Índice de Amplitude de Distribuição de Composição (CDBI50) de cerca de 1% a cerca de 98%.

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Номер записи: 63
11-07-2024 дата публикации

Nonlinear rheology of ethylene interpolymer compositions

Номер: US20240228681A1
Автор: Bronwyn Gillon, Fazle Sibtain, Kenneth Taylor, Mehdi Keshtkar, Monika Kleczek, Niousha Kazemi, Sepideh Kasiri, Shivendra Goyal, Soheil Sadeghi, Stephen Salomons, Vinod Konaganti, Zengrong Zhang
Принадлежит: Nova Chemicals International SA

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, Δ int ., greater than or equal to 0.01, satisfying 0.01×(Z−48) 0.78 ≤Δ int ≤0.01×(Z−60) 0.78 inequality wherein Z 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, 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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Номер записи: 64