GLASS FIBRE FOR REINFORCING ORGANIC AND/OR INORGANIC MATERIALS, COMPOSITE MATERIALS CONTAINING SUCH GLASS FIBRE AND COMPOSITION USED Russian patent published in 2009 - IPC C03C13/00 

FIELD: chemistry.

SUBSTANCE: invention relates to reinforcing glass fibres, containing the following components in within defined limits, expressed in weight percent: SiO₂ 50-65%, Al₂O₃ 12-20%, CaO 13-16%, MgO 6-12%, B₂O₃ 0-3%, TiO₂ 0-3%, Na₂O+K₂O< 2%, F₂ 0-1%, Fe₂O₃ < 1%. The said fibre consists of glass, which is a trade-off between mechanical properties, represented by specific Young's modulus, and melting and drawing conditions. Specific Young's modulus of the obtained glass is greater than 33.5 MPa.kg^-1.m^-3. Composite material made from glass fibres with said content, also contains one or more organic and/or inorganic materials.

EFFECT: obtaining glass with high specific Young's modulus.

6 cl, 1 tbl