Molded reflectors for light-emitting diode assemblies
US9284448B2 · kind B2 · utility
1Cited by
28References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2011 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Apr 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48257
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymer compositions are described containing a poly(1,4-cyclohexanedimethanol terephthalate) polymer in combination with a white pigment and optionally one or more reinforcing fillers. In accordance with the present disclosure, the composition also contains one or more reactive viscosity stabilizers. In order to prevent against yellowing, the composition is free of various aromatic epoxy resins, such as novolac epoxy resins. The polymer composition has excellent reflectance properties making the composition well suited for producing reflectors for light sources, such as LED assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.