Composition for optical material
US7009031B2 · kind B2 · utility
13Cited by
0References
15Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 4, 2001 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The composition for optical materials of the present invention contains at least one compound represented by the following Formula 1: wherein R1, R2 and R3 are each independently C1–C10 hydrocarbyl or hydrogen; X1, X2 and X3 are each independently S, Se or Te; Y1, Y2 and Y3 are each independently —Sa—[(CH2)bS]cH, a is an integer from 0 to 2, b is an integer from 0 to 4, and c is an integer from 0 to 2, and a compound reactive to the compound of Formula 1. A resin produced by curing a composition containing the compound of Formula 1 by polymerization has a high refractive index, and suitable as various optical materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.