Biaxially oriented, flame-retardant film comprising a crystallizable thermoplastic, its production and use

摘要

The invention relates to a flame-retardant oriented thermoplastic film with a thickness in the range from 0.5 to 12 mum. The film comprises at least one flame retardant and has a conductive coating. This film may also possess at least one functionality additional to the flame retardancy. The expression "additional functionality" comprehends the shrinkage and the solderability. All films of this kind feature low flammability and good dielectric properties. In particular, they have a high tracking resistance and a low dissipation factor, and may also have one or more further functionalities. The invention additionally relates to a process for producing the polyester film and to its use in film capacitors.