or electrical monitors also ski foils 3 manufacture of blow mouldings see for example u s pat no 2 964 794 4 manufacture of translucent sheets in particular of twin wall sheets for example for roofing structures such as railway stations greenhouses and lighting installations 5 for the manufacture of traffic light housings or road signs 6 for the manufacture of foam materials see for example de as 1 031 507 7 for the manufacture of threads and wires see for example de as 1 137 167 and de os 1 785 137 8 as translucent plastics having a glass fibre content for lighting engineering purposes see for example de os 1 554 020 9 for the manufacture of precision injection moulded parts such as for example lens mounts for this purpose polycarbonates having a fibre glass content are used which optionally comprise additionally approximately 1 to 10 wt mos 2 in relation to the total weight 10 optical applications such as optical memories cds dvds protective spectacles or lenses for photographic and cinematographic cameras see for example de os 2 701 173 11 as light transmission carriers in particular as fibre optic wave guide cables see for example ep al 0 089 801 12 as electrical insulating materials for electrical conductors and for plug housings as well as pin and socket connectors 13 as a carrier material for organic photoconductors 14 for the manufacture of lights for example searchlight lamps as so called headlamps or diffused light discs or lamp covers 15 for medical applications for example oxygenators dialysers 16 for food applications such as for example.