BIAXIALLY ORIENTED POLYPROPYLENE FILM FOR A CONDENSER WITH THE HIGH VOLTAGE RESISTANCE AT THE HIGH TEMPERATURE, A VACUUM METALLIZATION FILM, AND A CAST DISC SHEET THEREOF

摘要

PURPOSE: A biaxially oriented polypropylene film for a condenser, a vacuum metallization film, and a cast disc sheet thereof are provided to secure the thin film thickness, and the excellent device coiling processing quality.;CONSTITUTION: A biaxially oriented polypropylene film for a condenser is formed with two different kinds of isotactic polypropylene resin mixtures with the different stereo-regularities. The isotactic polypropylene resin mixtures are obtained by adding an isotactic poly propylene resin with the mesopentad fraction of 92~95%, to an isotactic poly propylene resin with the mesopentad fraction of 97~98%.;COPYRIGHT KIPO 2011