Film having an electrically conductive coating

摘要

A protective device for a glazed structure, in particular an aircraft windscreen 20, comprises at least one removable sacrificial sheet of transparent composite 10. The composite 10 comprises a transparent polymeric film 11 having on one side an electrically conductive layer 12 formed from a dispersion of electrically conductive particles and which is coated with a transparent hard coat 13, with the other side having adhesive layer 14 thereon. Sheets of the composite 10 may be arranged in a stack so that each sheet adheres to the adjacent underneath sheet with the uppermost sheet of each stack being removable as the sheet becomes damaged and/or dirty.