Glass composition for producing high strength and high modulus fibers
US9352999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2992
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A glass composition including SiO2 in an amount from about 69.5 to about 80.0% by weight, Al2O3 in an amount from about 5.0 to about 18.5% by weight, MgO in an amount from about 5.0 to about 14.75% by weight, CaO in an amount from 0.0 to about 3.0% by weight, Li2O in an amount from about 3.25 to about 4.0% by weight, and Na20 in an amount from 0.0 to about 2.0% by weight is provided. Glass fibers formed from the inventive composition may be used in applications that require high strength, high stiffness, and low weight. Such applications include, but are not limited to, woven fabrics for use in forming wind blades, armor plating, and aerospace structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.