Glass yarns, composite thereof, method for making same and reinforcing glass composition
US7449243B1 · kind B1 · utility
1Cited by
9References
24Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 31, 2000 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | Jan 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1369
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Reinforcing glass yarn, the composition of which comprises the following constituents, within the limits defined below, expressed in percentages by weight:and such that the ratio R1=Al2O3/CaO is less than 0.7, and when SiO2 is greater than 57% the amount of boron oxide B2O3 is greater than 2%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.