Halogen glasses modified with carbon disulphide and process of preparation
US4560667A · kind A · utility
3Cited by
5References
12Claims
0Family size
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Inventors
Key dates
| Filing date | Jul 20, 1984 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Jul 20, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Halogen glass is treated, while heated above its fusion temperature, with carbon disulphide. The resulting halogen glass is essentially free of parasitic absorption bands in the infra-red spectrum. The treatment with carbon disulphide apparently lowers the hydroxyl ion content and the metal-oxygen bonds sufficiently to avoid the infra-red absorption bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.