GLASS YARNS CAPABLE OF REINFORCING ORGANIC AND/OR INORGANIC MATERIALS

摘要

The invention relates to a glass strand, the chemical composition of which is substantially free of boron oxide and comprises the following constituents, in the limits defined below expressed as percentages by weight: SiO2 55 to 65 Al2O3  9 to 16 CaO 15 to 26 MgO 1 to 5 BaO + SrO 0.5 to 5   Na2O + K2O + Li2 O 0 to 2 TiO2 0 to 1 ZnO 0 to 2 ZrO2 0 to 2 It also relates to composites comprising such strands.