Polyethylene films and method of making same

A method for making a film having a thickness of about 20.0 μm to about 100.0 μm, the method comprising:

• a) providing a Layer A comprising:
• i) about 5.0 wt % to about 35.0 wt % of a first polyethylene having a g′vis of ≤0.97, 0.05 long-chain branches per 1,000 carbon atoms to 0.5 long-chain branches per 1,000 carbon atoms, a density of 0.920 g/cm3 to 0.935 g/cm3, and a melt index of 0.1 g/10 min to 0.5 g/10 min;
• and
• ii) 95.0 wt % to 65.0 wt % of a second polyethylene comprising ≥50.0 wt % of polymer units derived from ethylene and ≤50.0 wt % of polymer units derived from a C3 to C20 comonomer, based on the weight of the second polyethylene, wherein the second polyethylene has a CDBI of ≥60%, and a g′vis of ≥0.98;
• wherein the wt % values are based on the total weight of Layer A, and wherein:
• the density of the first polyethylene is greater than a density of the second polyethylene,
• the melt index of the first polyethylene is less than a melt index of the second polyethylene, or
• the density of the first polyethylene is greater than a density of the second polyethylene and the melt index of the first polyethylene is less than a melt index of the second polyethylene,
• b) providing a Layer B in surface contact with a first surface of Layer A, the Layer B comprising:
• i) 80.0 wt % to 100.0 wt % of a third polyethylene, wherein the third polyethylene comprises ≥50.0 wt % of polymer units derived from ethylene and ≤50.0 wt % of polymer units derived from a C3 to C20 comonomer, based on the weight of the third polyethylene, wherein the third polyethylene has a CDBI of ≥60%, a density of 0.910 g/cm3 to 0.950 g/cm3, and a g′vis of >0.98;
• and
• ii) 0.0 wt % to 20.0 wt % of a fourth polyethylene, wherein the wt % values are based on the total weight of the Layer B;
• and
• c) providing a Layer C in surface contact with a second surface of Layer A, the Layer C comprising:
• i) 80.0 wt % to 100.0 wt % of a fifth polyethylene, wherein the fifth polyethylene comprises ≥50.0 wt % of polymer units derived from ethylene and ≤50.0 wt % polymer units derived from a C3 to C20 comonomer, based on the weight of the fifth polyethylene, and wherein the fifth polyethylene has a CDBI of ≥60%, a density of 0.910 g/cm3 to 0.950 g/cm3 and a g′vis of >0.98;
• and
• 0.0 wt % to 20.0 wt % of a sixth polyethylene, wherein the wt % values are based on the total weight of the Layer C;
• wherein each of the third polyethylene, the fourth polyethylene, the fifth polyethylene, and the sixth polyethylene may be the same or different.