| abstract |
PROCEDURE FOR THE PRODUCTION OF FILMS BASED ON ETHYLENE POLYMERS. IT INCLUDES BLOWING OR MOLDING BY EXTRUSION, AT A TEMPERATURE INCLUDING BETWEEN 180GC AND 280GC, OF A MIXTURE CONSTITUTED BY 80-99 BY ONE HUNDRED OF AT LEAST ONE POLYMER OR COPOLYMER OF ETHYLENE, WHOSE DENSITY IS NOT HIGHER THAN 0.935 AND FOR 1 TO 20 BY 1 TO ONE HUNDRED OF AT LEAST ONE ADHESIVE AGENT, SUCH AS LIQUID POLYBUTENE, POLYISOBUTENE OR ATACTIC POLYPROPYLENE, AND AT LEAST ONE CRYSTALLINE WAX. THESE ADHESIVE FILMS HAVE APPLICATIONS IN AUTOMATED PACKAGING OPERATIONS. |