Glass fibers
US10899652B2 · kind B2 · utility
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3References
25Claims
0Family size
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Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/742
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Glass fibers have a chemical composition that includes the following constituents, in a weight content that varies within the limits defined below: SiO2 50-70%, Al2O3 0-5%, CaO+MgO 0-7%, Na2O 5-15%, K2O 0-10%, BaO 2-10%, SrO 2-10%, ZnO <2%, and B2O3 5-15%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.