Polymerizable composition and optical material produced therefrom
US11958937B2 · kind B2 · utility
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1References
17Claims
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Assignee
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Key dates
| Filing date | Jun 4, 2019 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Feb 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/041
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
One embodiment relates to a polymerizable composition and an optical material produced therefrom which has excellent lightfastness and minimized color defects, and more specifically, the polymerizable composition according to one embodiment includes UV absorbers having, as the main absorption wavelength, either a long-wavelength region or a short-Wavelength region Within the UV region, wherein the UV absorbers do not absorb in the Visible light region. Accordingly, the polymerizable composition may be used to provide an optical material having excellent lightfastness and minimized color defects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.