Transparent siloxane resin composition for optical applications
US8658753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Dec 8, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A transparent siloxane resin composition for optical applications is provided including: (1) a vinyl-oligosiloxane hybrid prepared by a non-hydrolytic condensation reaction of an organoalkoxysilane having a vinyl group or a mixture of an organoalkoxysilane having a vinyl group and a metal alkoxide with an organosilanediol; (2) an organohydrosilicone compound having two or more silicon-bonded hydrogen atoms; and (3) a metal catalyst. The resulting transparent siloxane resin exhibits excellent light transmittance, light resistance and heat resistance, has refractive index and hardness suitable for optical applications, including optical devices, displays, LEDs or the like, and experiences little contraction during processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.