Silicone material, curable silicone composition, and optical device
US9550916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/52
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a silicone material satisfying any of the following conditions in an elemental composition percentage of the silicone material surface according to X-ray photoelectron spectroscopy (ESCA): (i) the elemental composition percentage of carbon atoms is from 50.0 to 70.0 atom %; (ii) a ratio of the elemental composition percentage of carbon atoms to the elemental composition percentage of silicon atoms (C/Si) is from 2.0 to 5.0; or (iii) both of the above conditions (i) and (ii). The silicone material is stable against light and heat, in which a decrease in transmittance and generation of cracks do not tend to occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.