Multilayer structure having a melt extruded water absorbing polyolefin layer

A method of preparing a micronized polymer pellets comprising the steps of:

• mixing a polymer resin and a plurality of particles comprising a micronized super absorbent polymer to form a homogeneous polymer mixture;
• introducing the polymer mixture into an extruder;
• melting and kneading the polymer mixture in the extruder to form a molten or semi-molten polymer stream;
• introducing the polymer stream into a melt pump;
• measuring the pressure of the polymer stream exiting the melt pump;
• adjusting the pressure of the polymer stream as it exits the melt pump to a predetermined pressure threshold for the polymer stream;
• introducing the polymer stream into a pellet die, said pellet die comprising a plurality of fluid channels and corresponding extrusion orifices, the extrusion orifices having diameters ranging from about 0.020 to 0.050 mm;
• dividing the polymer stream to flow through the plurality of fluid channels to form a plurality of polymer strands;
• extruding the plurality of polymer strands through said extrusion orifices,
• cutting the plurality of polymer strands to form a plurality of micronized polymer pellets;
• and
• drying and collecting the micronized polymer pellets.