A heterogeneous procatalyst includes a preformed heterogeneous procatalyst and a metal-ligand complex. The preformed heterogeneous procatalyst includes a titanium species and a magnesium chloride (MgCl.sub.2) support. The metal-ligand complex has a structural formula (L).sub.aM(Y).sub.m(XR.sup.2).sub.b, where M is a metal cation; each L is a neutral ligand or (?O); each Y is a halide or (C.sub.1-C.sub.20)alkyl; each XR.sup.2 is an anionic ligand in which X is a heteroatom or a heteroatom-containing functional group and R.sup.2 is (C.sub.1-C.sub.20)hydrocarbyl or (C.sub.1-C.sub.20) heterohydrocarbyl; n is 0, 1, or 2; m is 0-4; and b is 1-6. The metal-ligand complex is overall charge neutral. The heterogeneous procatalyst exhibits improved average molecular weight capability. A catalyst system includes the heterogeneous procatalyst and a cocatalyst. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.

A heterogeneous procatalyst includes a preformed heterogeneous procatalyst and a metal-ligand complex. The preformed heterogeneous procatalyst includes a titanium species and a magnesium chloride (MgCl.sub.2) support. The metal-ligand complex has a structural formula (L).sub.aM(Y).sub.m(XR.sup.2).sub.b, where M is a metal cation; each L is a neutral ligand or (?O); each Y is a halide or (C.sub.1-C.sub.20)alkyl; each XR.sup.2 is an anionic ligand in which X is a heteroatom or a heteroatom-containing functional group and R.sup.2 is (C.sub.1-C.sub.20)hydrocarbyl or (C.sub.1-C.sub.20) heterohydrocarbyl; n is 0, 1, or 2; m is 0-4; and b is 1-6. The metal-ligand complex is overall charge neutral. The heterogeneous procatalyst exhibits improved average molecular weight capability. A catalyst system includes the heterogeneous procatalyst and a cocatalyst. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.

Mono- and multi-layer films comprising a polyethylene composition which comprises the reaction product of ethylene and optionally one or more alpha olefin comonomers in the presence of a catalyst composition comprising a multi-metallic procatalyst via a solution polymerization process in at least one reactor; wherein said polyethylene composition is characterized by one or more of the following properties: a melt index, I.sub.2, measured according to ASTM D 1238 (2.16 kg @ 190 C.), from 0.1 to 5 g/10 min; density, measured according to ASTM D-792, from 0.910 to 0.935 g/cc; melt flow ratio, I.sub.10/I.sub.2, wherein I.sub.10 is measured according to ASTM D1238 (10 kg @ 190 C.), from 6 to 7.4; and molecular weight distribution, (M.sub.w/M.sub.n) from 2.5 to 3.5 are provided. Also provided are articles made from the mono- and/or multi-layer films.

Mono- and multi-layer films comprising a polyethylene composition which comprises the reaction product of ethylene and optionally one or more alpha olefin comonomers in the presence of a catalyst composition comprising a multi-metallic procatalyst via a solution polymerization process in at least one reactor; wherein said polyethylene composition is characterized by one or more of the following properties: a melt index, I.sub.2, measured according to ASTM D 1238 (2.16 kg @ 190 C.), from 0.1 to 5 g/10 min; density, measured according to ASTM D-792, from 0.910 to 0.935 g/cc; melt flow ratio, I.sub.10/I.sub.2, wherein I.sub.10 is measured according to ASTM D1238 (10 kg @ 190 C.), from 6 to 7.4; and molecular weight distribution, (M.sub.w/M.sub.n) from 2.5 to 3.5 are provided. Also provided are articles made from the mono- and/or multi-layer films.

Embodiments disclosed herein include multilayer cast films having a first outer layer, a core layer, and a second outer layer, wherein the first outer layer comprises (a) a linear low density polyethylene (LLDPE), ultra-low density polyethylene (ULDPE), a first polyethylene composition, or combinations of two or more thereof, and (b) polyisobutylene, and the core layer comprises a core layer polyethylene composition.

Embodiments disclosed herein include multilayer cast films having a first outer layer, a core layer, and a second outer layer, wherein the first outer layer comprises (a) a linear low density polyethylene (LLDPE), ultra-low density polyethylene (ULDPE), a first polyethylene composition, or combinations of two or more thereof, and (b) polyisobutylene, and the core layer comprises a core layer polyethylene composition.

Disclosed herein is a blown film comprising at least 50 wt. % of a polyethylene composition comprising the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a melt index, I.sub.2, of from 0.1 to 2 g/10 min; a density of from 0.940 to 0.970 g/cm.sup.3; a melt flow ratio, I.sub.10/I.sub.2, of from 5.5 to 7.2; and a molecular weight distribution (Mw/Mn) of from 2.2 to 3.5.

Disclosed herein is a blown film comprising at least 50 wt. % of a polyethylene composition comprising the reaction product of ethylene and optionally, one or more alpha-olefin comonomers, wherein the polyethylene composition is characterized by the following properties: a melt index, I.sub.2, of from 0.1 to 2 g/10 min; a density of from 0.940 to 0.970 g/cm.sup.3; a melt flow ratio, I.sub.10/I.sub.2, of from 5.5 to 7.2; and a molecular weight distribution (Mw/Mn) of from 2.2 to 3.5.

Mono- and multi-layer films comprising a polyethylene composition which comprises the reaction product of ethylene and optionally one or more alpha olefin comonomers in the presence of a catalyst composition comprising a multi-metallic procatalyst via a solution polymerization process in at least one reactor; wherein said polyethylene composition is characterized by one or more of the following properties: a melt index, I.sub.2, measured according to ASTM D 1238 (2.16 kg@190 C.), from 0.1 to 5 g/10 min; density, measured according to ASTM D-792, from 0.910 to 0.935 g/cc; melt flow ratio, I.sub.10/I.sub.2, wherein I.sub.10 is measured according to ASTM D1238 (10 kg@190 C.), from 6 to 7.4; and molecular weight distribution, (M.sub.w/M.sub.n) from 2.5 to 3.5 are provided. Also provided are articles made from the mono- and/or multi-layer films.

Mono- and multi-layer films comprising a polyethylene composition which comprises the reaction product of ethylene and optionally one or more alpha olefin comonomers in the presence of a catalyst composition comprising a multi-metallic procatalyst via a solution polymerization process in at least one reactor; wherein said polyethylene composition is characterized by one or more of the following properties: a melt index, I.sub.2, measured according to ASTM D 1238 (2.16 kg@190 C.), from 0.1 to 5 g/10 min; density, measured according to ASTM D-792, from 0.910 to 0.935 g/cc; melt flow ratio, I.sub.10/I.sub.2, wherein I.sub.10 is measured according to ASTM D1238 (10 kg@190 C.), from 6 to 7.4; and molecular weight distribution, (M.sub.w/M.sub.n) from 2.5 to 3.5 are provided. Also provided are articles made from the mono- and/or multi-layer films.