Reactor blend ethylene polymer compositions and films

A reactor blend ethylene polymer composition, comprising:

• from 30 to 70 weight percent of a first ethylene polymer, the first ethylene polymer comprising ethylene and optionally at least one α-olefin, the first ethylene polymer having a weight-average molecular weight Mw of from 70 kg/mol to 250 kg/mol, a number of short chain branches per thousand carbon atoms of from 0 to 6, and a polydispersity index Mw/Mn of from 1.7 to 2.3;
• and
• from 30 to 70 weight percent of a second ethylene interpolymer, the second ethylene interpolymer comprising ethylene and at least one α-olefin, the second ethylene interpolymer having a weight-average molecular weight Mw of from 20 kg/mol to 75 kg/mol, a number of short chain branches per thousand carbon atoms of from to 55, and a polydispersity index Mw/Mn of from 1.7 to 2.3;
• wherein the weight-average molecular weight of the second ethylene interpolymer is less than the weight-average molecular weight of the first ethylene polymer;
• and
• wherein the ethylene polymer composition is produced in a continuous solution polymerization process, the continuous solution polymerization process comprising:
• forming the first ethylene polymer in a first solution polymerization reactor by polymerizing ethylene and optionally at least one α-olefin with a first homogenous catalyst formulation;
• and
• forming the second ethylene interpolymer in a second solution polymerization reactor by polymerizing ethylene and at least one α-olefin with a second homogeneous catalyst formulation.