Film having an electrically conductive coating

A transparent protective polymeric film composite for laying over a surface, the protective composite comprising a transparent polymeric film having on one side a transparent electrically conductive layer formed from a dispersion of nanoparticles of ATO, said one side in use facing away from said surface, with a hard coat being coated onto said layer, the areal density of ATO nanoparticles being between 0.16-1.00 gm per m2 and the hard coat is a UV curable acrylate resin having a thickness of about 1.8 microns and the composite has a surface resistivity of about 1.9×108 ohms/square at 100 volts.

An aircraft window protector including at least one sheet of transparent composite comprising a transparent polymeric film having on one side an electrically conductive layer coated with a transparent hard coat, said one side in use facing away from said surface, the film having on its other side an adhesive for adherence to the window.

An aircraft window protector including a plurality of sheets of transparent composite comprising a transparent polymeric film having on one side an electrically conductive layer coated with a transparent hard coat containing a surface energy reducer, said one side in use facing away from said surface, the film having on its other side an adhesive, the sheets being arranged in a stack so that each sheet adheres to the adjacent underneath sheet with the uppermost sheet of each stack being removable.

A method of protecting an aircraft windscreen or canopy from damage due to abrasion by dirt etc. wherein in said method the windscreen is provided with a removable sacrificial layer comprising a transparent polymeric film composite which protects a windscreen, has good optical properties has optical properties in the visible such that it has a % VLT of at least 80%, a Haze value of less than 5%, and is sufficiently transmissive between the wavelengths 600-1000 nm to allow unimpaired use of night vision goggles, and dissipates static electricity.

A method of manufacture of an anti-static protective transparent film composite in which method, an aqueous dispersion of nanoparticles of conductive material are applied to a surface a transparent film, the dispersion is dried, and then coated with a scratch resistant coating.