Invention Grant
- Patent Title: LED lighting elements comprising molded parts made of translucent polycarbonate compositions having a deep gloss effect
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Application No.: US16633056Application Date: 2018-07-19
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Publication No.: US11598495B2Publication Date: 2023-03-07
- Inventor: Ciro Piermatteo , Armin Berger , Gianmaria Malvestiti , Vincenzo Taravella
- Applicant: Covestro Deutschland AG
- Applicant Address: DE Leverkusen
- Assignee: Covestro Deutschland AG
- Current Assignee: Covestro Deutschland AG
- Current Assignee Address: DE Leverkusen
- Agency: The Webb Law Firm
- Priority: EP17425079 20170724
- International Application: PCT/EP2018/069582 WO 20180719
- International Announcement: WO2019/020478 WO 20190131
- Main IPC: F21K9/66
- IPC: F21K9/66 ; F21V3/06 ; C08K5/00 ; C08K3/04 ; C09B1/32 ; C08L69/00 ; C09B5/14 ; C08K3/22

Abstract:
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.
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