Asymmetric disulfide compounds, method for producing the same, and optical products
US6559276B2 · kind B2 · utility
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Key dates
| Filing date | Oct 26, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Nov 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Asymmetric disulfide compounds and methods for their preparation are described. An optical product can be made of a polymer that is obtained by using at least one asymmetric disulfide compound as an essential monomer component. These polymers can be used to form an optical product having a high refractive index and a high Abbe's number and having superior heat resistance, superior weather resistance and superior transparency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.