Process for preparing black glass using cyclosiloxane precursors
US5231059A · kind A · utility
23Cited by
8References
4Claims
0Family size
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Key dates
| Filing date | Sep 21, 1990 |
| Grant date | Jul 27, 1993 |
| Priority date | — |
| Expiry date | Sep 21, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for preparing an oxidation resistant black glass having the empirical formula SiC.sub.x O.sub.y, wherein 0<x.ltoreq.2.0 and 0<y.ltoreq.2.2. The process comprises reacting cyclosiloxane monomers to effect the bonding of one vinyl carbon atom to a silicon, curing the product at not greater than 250.degree. C., and pyrolyzing at about 800.degree.-1400.degree. C. in an atmosphere containing a sufficient amount of oxygen to reduce the carbon content of the black glass to a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.