Light emitting device encapsulated with silicones and curable silicone compositions for preparing the silicones
US8258502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2007 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Feb 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition includes: (I) an alkenyl functional, phenyl-containing polyorganosiloxane, an Si—H functional phenyl-containing polyorganosiloxane, or a combination thereof; (II) a hydrogendiorganosiloxy terminated oligodiphenylsiloxane having specific molecular weight, an alkenyl-functional, diorganosiloxy-terminated oligodiphenylsiloxane having specific molecular weight, or a combination thereof; and (III) a hydrosilylation catalyst. A light emitting device is made by applying the composition onto a light source followed by curing. The composition provides a cured material with mechanical properties suited for use as an encapsulant for a light emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.