公开(公告)号：US11598495B2

公开(公告)日：2023-03-07

申请号：US16633056

申请日：2018-07-19

申请人： Covestro Deutschland AG

发明人： Ciro Piermatteo ,  Armin Berger ,  Gianmaria Malvestiti ,  Vincenzo Taravella

IPC分类号： F21K9/66 ,  F21V3/06 ,  C08K5/00 ,  C08K3/04 ,  C09B1/32 ,  C08L69/00 ,  C09B5/14 ,  C08K3/22

摘要： The present invention relates to LED lighting elements comprising translucent mouldings composed of polycarbonate-based moulding compounds, comprising a colourant mixture, carbon black, scattering additive and optionally white pigment, as used, for example, as covers with a day/night design. Through combination with one or more RGB-LEDs, it is possible to achieve surprising colour effects in night design with presence of a deep gloss effect in mouldings that are black and grey in day design.