Molded reflectors for light-emitting diode assemblies
US9567460B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2013 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Dec 17, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0363
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer compositions are described that are well suited for producing reflectors for light-emitting devices, such as light-emitting diodes. In one particular embodiment, the polymer composition contains a polymer resin, a white pigment, a silicone compound, and a nucleating agent. The polymer resin may comprise, for instance, a poly(1,4-cyclohexanedimethanol terephthalate). In accordance with the present disclosure, the composition also contains at least one silicone compound and at least one nucleating agent. The silicone compound and nucleating agent have been found to improve the molding processability and reflectance stability of the polymer composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.