An airbag cover is defined by a predetermined breaking line which is introduced into a shaped flat material in a recessed manner. The recesses are achieved by removing material by means of laser radiation. According to the invention, the flat material is provided with a barrier layer. The barrier layer,...http://www.google.com/patents/US6698470?utm_source=gb-gplus-sharePatent US6698470 - Method and device for collecting fractions after material separation
