A thermoformable film including a polyethylene composition. The polyethylene composition includes a first polyethylene which is an ethylene copolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular weight distribution M.sub.w/M.sub.n of <2.3, a second polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution M.sub.w/M.sub.n of <2.3, a third polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution M.sub.w/M.sub.n of <2.3, and a fourth polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of from 100,000 to 250,000 and a molecular weight distribution M.sub.w/M.sub.n of >2.3, where the first polyethylene has more short chain branching than the second polyethylene or the third polyethylene. The polyethylene composition has a melt flow ratio (I.sub.21/I.sub.2) of ≤55 and an area Dimensional Thermoformability Index (aDTI) at 105° C. of less than 15.

A thermoformable film including a polyethylene composition. The polyethylene composition includes a first polyethylene which is an ethylene copolymer having a weight average molecular weight of from 70,000 to 250,000 and a molecular weight distribution M.sub.w/M.sub.n of <2.3, a second polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution M.sub.w/M.sub.n of <2.3, a third polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of less than 75,000 and a molecular weight distribution M.sub.w/M.sub.n of <2.3, and a fourth polyethylene which is an ethylene copolymer or homopolymer having a weight average molecular weight of from 100,000 to 250,000 and a molecular weight distribution M.sub.w/M.sub.n of >2.3, where the first polyethylene has more short chain branching than the second polyethylene or the third polyethylene. The polyethylene composition has a melt flow ratio (I.sub.21/I.sub.2) of ≤55 and an area Dimensional Thermoformability Index (aDTI) at 105° C. of less than 15.

A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, toughness, and environmental stress crack resistance. The polyethylene compositions are suitable for the preparation of rotomolded parts.

A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, toughness, and environmental stress crack resistance. The polyethylene compositions are suitable for the preparation of rotomolded parts.

A polyethylene composition which when made into a film layer having a thickness of about 1 mil has a machine direction (MD) 1% secant modulus of ≥200 MPa and an oxygen transmission rate (OTR) of ≥600 cm.sup.3 per 100 inch.sup.2 per day and when made into a film layer having a thickness of about 2 mil has a seal initiation temperature (SIT) of ≤90° C. and an area of hot tack window (AHTW) of ≥160 Newtons.Math.° C.

A polyethylene composition which when made into a film layer having a thickness of about 1 mil has a machine direction (MD) 1% secant modulus of ≥200 MPa and an oxygen transmission rate (OTR) of ≥600 cm.sup.3 per 100 inch.sup.2 per day and when made into a film layer having a thickness of about 2 mil has a seal initiation temperature (SIT) of ≤90° C. and an area of hot tack window (AHTW) of ≥160 Newtons.Math.° C.

This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δ.sub.int., greater than or equal to 0.01, satisfying 0.01×(Z−50).sup.0.78≤Δ.sub.int.≤0.01×(Z−60).sup.0.78 inequality wherein Z is a normalized molecular weight defined by

[00001]$Z=\frac{M_w}{M_e}$

where M.sub.w and M.sub.e 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,

[00002]$\frac{M_w}{M_n},$

from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI.sub.50) from about 1% to about 98%.

This disclosure relates to ethylene interpolymer compositions and films prepared therefrom. Specifically: ethylene interpolymer products having: a dimensionless nonlinear rheology network parameter, Δ.sub.int., greater than or equal to 0.01, satisfying 0.01×(Z−50).sup.0.78≤Δ.sub.int.≤0.01×(Z−60).sup.0.78 inequality wherein Z is a normalized molecular weight defined by

[00001]$Z=\frac{M_w}{M_e}$

where M.sub.w and M.sub.e 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,

[00002]$\frac{M_w}{M_n},$

from about 1.7 to about 25 and a Composition Distribution Breadth Index (CDBI.sub.50) from about 1% to about 98%.

A low density polyethylene (LDPE) having a z-average molecular weight Mz (cony) from 425,000 g/mol to 800,000 g/mol, a melt index I.sub.2 less than or equal to 0.20 g/10 min, and a conventional GPC Mw/Mn from 8.0 to 10.6. A LDPE having a GPC-light scattering parameter (LSP) less than 2.00, a ratio of viscosity measured at 0.1 radians/second and 190° C. to a viscosity measured at 100 radians/second and 190° C. that is greater than 50, and a z-average molecular weight Mz (cony) from 425,000 g/mol to 800,000 g/mol.

A low density polyethylene (LDPE) having a z-average molecular weight Mz (cony) from 425,000 g/mol to 800,000 g/mol, a melt index I.sub.2 less than or equal to 0.20 g/10 min, and a conventional GPC Mw/Mn from 8.0 to 10.6. A LDPE having a GPC-light scattering parameter (LSP) less than 2.00, a ratio of viscosity measured at 0.1 radians/second and 190° C. to a viscosity measured at 100 radians/second and 190° C. that is greater than 50, and a z-average molecular weight Mz (cony) from 425,000 g/mol to 800,000 g/mol.