Glass fiber composition, glass fiber and composite material therefrom
US10155686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2014 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Dec 29, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/075
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a glass fiber composition, glass fiber and composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 56-64% SiO2, 12-18% Al2O3, 0.1-1% Na2O, 0.1-1% K2O, 0.1-1% Fe2O3, 0.05-1% Li2O+Bi2O3, 19-25% CaO+MgO+SrO, 0.1-1.5% TiO2 and 0-1% CeO2, wherein a weight percentage ratio C1=Li2O/Bi2O3 is greater than 1, and a weight percentage ratio C2=(MgO+SrO)/CaO is 0.4-1, and a weight percentage ratio C3=MgO/(MgO+SrO) is greater than 0.7. Said composition reduces the amount of bubbles, viscosity and crystallization risk of the glass, thereby making it more suitable for large-scale production with refractory-lined furnaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.