Aryl group-containing siloxane compositions including alkaline earth metal
US9550866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aryl group-containing siloxane composition is formed by introducing an alkaline earth-metal as a part of the reaction product of an organopolysiloxane having at least two alkenyl groups per molecule and an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule in the presence of a hydrosilylation catalyst, wherein at least one of the organopolysiloxanes includes an aryl group. The alkaline earth metal may be introduced via a heat stability composition or may alternatively be pre-reacted with the organopolysiloxane having at least two alkenyl groups per molecule. The aryl group-containing siloxane compositions may be utilized as an encapsulating layer for a light emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.