Abstract: A functional polyolefinic(tubular) film combined with an inorganic filler (such as CaCO.sub.3) having a thickness of 5-150 .mu.m, which is applied in a corona discharge at a high voltage current of 50-3,000 W/m.sup.2 /min. A process for manufacturing that film. Products obtained from that film [packaging bag, adhesive-backed sheet and adhesive tape (such as tape for adhesive masking film for coating)].