The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2023
Filed:
Jul. 19, 2018
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Ciro Piermatteo, Leverkusen, DE;
Armin Berger, Langenfeld, DE;
Gianmaria Malvestiti, Capriate San Gervasio, IT;
Vincenzo Taravella, Curno, IT;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21K 9/66 (2016.01); F21V 3/06 (2018.01); C08K 5/00 (2006.01); C08K 3/04 (2006.01); C09B 1/32 (2006.01); C08L 69/00 (2006.01); C09B 5/14 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
F21K 9/66 (2016.08); C08K 3/04 (2013.01); C08K 5/0041 (2013.01); C08L 69/00 (2013.01); C09B 1/32 (2013.01); C09B 5/14 (2013.01); F21V 3/062 (2018.02); C08K 2003/2241 (2013.01);
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.