Multi-layer structure suitable for use as a reflector
US12313866B2 · kind B2 · utility
0Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2021 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | May 21, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/37
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a filler-containing multi-layer structure on the basis of a polycarbonate composition, having a metal layer as a reflective layer and having a balanced property profile of CLTE, CLTE ratio, heat conductivity and lustre. This multi-layer structure can be used, inter alia, for reflectors or as a mirror element in head-up displays. Expanded graphite and burned silicon dioxide are contained as fillers. In the composition provided according to the invention, there is no need for an additional heat sink when implementing the component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.