Carbonate decolorization
US7078539B2 · kind B2 · utility
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4References
4Claims
0Family size
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Key dates
| Filing date | Jul 1, 2003 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Oct 20, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The color of organic carbonate such as ethylene carbonate or propylene carbonate is substantially improved by ultraviolet irradiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.