Nova Chemicals (international) S.a.

Zengrong Zhang

Fazle Sibtain

Kenneth Edward Taylor

Niousha Kazemi

Monika Kleczek

Stephen Salomons

Mehdi Keshtkar

Qinyan Wang

XiaoChuan Wang

Peter Zoricak

Hamidreza Khakdaman

Brian Molloy

Lawrence VanAsseldonk

Charles Carter

Christopher Dobbin

Shivendra K Goyal

Bronwyn Gillon

Vinod Konaganti

Sepideh Kasiri

Soheil Sadeghi

Stephen John Brown

Patrick Lam

Garry Takashi Yamashita

Lianyou Fan

This disclosure relates to ethylene interpolymer products comprising a Melt Flow-Intrinsic Viscosity Index value, MFIVI, of from ≥0.05 to ≤0.80; a first derivative of a melt flow distribution function, formula (I) at a loading of 4000 g, of from ≥−1.85 to ≤−1.51; a sum of unsaturation, SUM, from ≥0.047 to ≤0.100 unsaturations per 100 carbon atoms; and a residual QC catalytic metal of from ≥0.03 to ≤5 ppm of hafnium. Ethylene interpolymer products comprise at least two ethylene interpolymers. Ethylene interpolymer products are characterized by a melt index (I) from 0.3 to 500 dg/minute, a density from 0.855 to 0.975 g/cc and from 0 to 25 mole percent of one or more a-olefins. Ethylene interpolymer products have polydispersity, M/M, from 1.7 to 25; and CDBIvalues from 1% to 98%. These ethylene interpolymer products have utility in flexible as well as rigid applications.

Ethylene interpolymer products having unique melt flow-intrinsic viscosity (MFIVI) and high unsaturation

This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (M). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCID), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm, a polydispersity (M/M) from about 2 to about 25 and a CDBIfrom about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCID.

Ethylene interpolymer products having intermediate branching

This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, &#x394;, greater than or equal to 0.01, satisfying 0.01&#xd7;(Z&#x2212;50)&#x2264;&#x394;&#x2264;0.01&#xd7;(Z&#x2212;60)inequality wherein Z is a normalized molecular weight defined by where Mand Mare the weight average and entanglement molecular weights, and; a residual catalytic metal of from &#x2265;0.03 to &#x2264;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, from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI) from about 1% to about 98%.

Ethylene interpolymer products and films

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 (&#x3b1;-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.

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

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 (&#x3b1;-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.

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

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

Novel ethylene styrene interpolymers having triads with double reverse styrene incorporation (S ) may be prepared in the presence of a transition metal phosphinimine compound and an activator.

Ethylene styrene interpolymers with double reverse styrene incorporation

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Calgary, Canada

Zengrong Zhang