Biaxially oriented polyester film for heat-metal lamination

摘要

The invention relates to biaxially oriented polyester films which are suitable for lamination to sheet metal; the invention in particular relates to a polyester film which (based on the weight of polyester) comprises from 1 to 8% by weight of isophthalate-derived units, and also comprises not only particles whose median diameter is from 0.1 to 2.0 mum but also particles whose median diameter is from >2.5 mum to <8 mum. The invention further relates to a process for production of these films and to their use.