Curable silicone composition, optical member resin sheet comprising same, and light-emitting device
US12146059B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2018 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/844
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curable silicone composition is disclosed. The composition comprises: (A) a hydrosilylation-reactive resin-linear block copolymer type organopolysiloxane; (B) an organopolysiloxane resin containing a curing-reactive group having a carbon-carbon double bond in the molecule; (C) an organohydrogenpolysiloxane; and (D) a hydrosilylation reaction catalyst. An absolute value (ΔRI) of a difference between refractive indices of component (A) and component (B) measured at room temperature is less than 0.05. The curable silicone composition generally has excellent handleability, moldability, and mechanical strength (hardness, in particular) and flexibility of a cured product while achieving high transparency. Also disclosed is a resin sheet for an optical member including the composition or cured product thereof, and a light-emitting device or the like including the composition or cured product thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.