Flexible ribbon cable or flexible flat cable

摘要

Flexible flat cable with signal conductor(s) between layers of non-woven material consisting only of polyester, polyamide, polyolefin, syndiotactic polystyrene, polysulfone and/or glass fibres, the pores between the fibres being so highly filled with binder as to give a breakdown voltage of at least 500 V and/or a dimensional stability of at least 0.05% after 24 hours at 140degreesC. An Independent claim is also included for a method for the production of flexible strip or flat cable by embedding signal conductor(s) between layers of non-woven fabric with an air permeability of 20-8000 m/s at a pressure difference of 200 Pa (consisting of the above materials) and impregnating with binder to obtain the above properties.