| abstract |
A process for preparing a flexible packaging material (6) by laminating at a temperature greater or equal to 50°C a printed substrate comprising a primer resin (4) with another substrate coated with a thermal active material (2) consisting of a polymer having an ester of acrylic or methacrylic acid content greater than or equal to 17% by weight, to prepare a high performance flexible packaging multilayer material (6) showing improved shelf-life, without requiring curing stage of intermediate layers (1 - 5). |