fed into the feed hopper of a conventional rotating screw extruder the extruder screw employed can have a 6 inch diameter and a length to diameter ratio of about 24 1 a satellite extruder is employed for the extrusion of the b composition containing the appropriate amount of anti cling agent the satellite extruder comprises a conventional extruder having an extruder screw with a 3 5 inch diameter and a length to diameter ratio of about 24 1 molten resin from the satellite extruder is fed into the cast film die affixed to the end of the a extuder through an adaptor specifically designed to join the b polymer stream from the satellite extruder to the molten a polymer stream so that it effectively interfaces with the molten surface of the a layer a more complete description of this prior art process may be found in u s pat no 3 748 962 the disclosure of which is incorporated herein by reference employing the above described technique an a b coextrusion was formed composed of an 80 a layer thickness of a 3 0 m i 0 917 gm c c density lldpe containing polyisobutylene number average m w 2060 in the ratio of 3 parts per 100 parts of lldpe and a 20 b layer thickness of ldpe having a 2 0 m i of a 0 920 gm c c density containing 5 000 ppm of a synthetic sodium aluminum silicate of the approximate formula na 2 o al 2 o 3 2sio 2 4h 2 o the size of aggregates din 51 033 was 3 4 microns the slot coextruded film had a gauge of 0 9 mils the resulting film had a cling.