Glass composition for glass fiber
US9878942B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Dec 18, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2213/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a glass composition for glass fiber allowing spinning to be stably performed without mixing of red foreign substances into glass fibers. The glass composition for glass fiber includes, in relation to the total amount thereof, SiO2 in a content falling within a range from 57.0 to 60.0% by mass, Al2O3 in a content falling within a range from 17.5 to 20.0% by mass, MgO in a content falling within a range from 8.5 to 12.0% by mass, CaO in a content falling within a range from 10.0 to 13.0% by mass and B2O3 in a content falling within a range from 0.5 to 1.5% by mass, the total content of SiO2, Al2O3, MgO and CaO being 98.0% by mass or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.