FILMS PREPARED FROM ETHYLENE COPOLYMERS Russian patent published in 2000 - IPC

FIELD: chemistry of polymers. SUBSTANCE: described are polymeric films consisting of at least one layer made of ethylene copolymer or triple ethylene copolymer. Said layer has impact strength of more than 100 g/mil determined by procedure ASIM D-1709. Method A using fall height of 112 cm. Content of ethylene copolymer or triple ethylene copolymer in said layer is at least 80 wt %. Said ethylene copolymer has composition distribution width value within 50-90 % and M_z/M_w of about less than 2.0. High tensile strength, impact strength and resistance to puncture of films made of said polymers made then suitable for manufacturing stretching film cargo packets. EFFECT: improved properties of the films. 12 cl, 6 dwg, 17 tbl