CALCIUM CARBONATE AS CAVITATION AGENT FOR BIAXIALLY ORIENTED POLYPROPYLENE FILMS

摘要

The present invention relates to a mono or multi-layer biaxially oriented polypropylene film having a density of ‰¤ 0.72 g/cm 3 , a process for producing the mono or multi-layer biaxially oriented polypropylene film, the use of at least one natural calcium carbonate as cavitation agent in the mono or multi-layer biaxially oriented polypropylene film, an article comprising the mono or multi-layer biaxially oriented polypropylene film as well as the uses.