FIO DE VIDRO, COMPÓSITO DE FIOS DE VIDRO E DE MATERIAL(IS) ORGÂNICO(S) E/OU INORGÂNICO(S) E PROCESSO DE FABRICAÇÃO DOS FIOS DE VIDRO.

摘要

The invention relates to a glass yarn capable of being obtained by a method consisting of mechanically drawing molten glass threads flowing from orifices disposed at the base of a die, of which the chemical composition is substantially free from boron oxide and comprises the following constituents within the limits defined hereinafter expressed in percentages by weight: SiO2 40 to 50 Al2O3 18 to 28 CaO 4 to 15 MgO 0 to 6 Na2O 10 to 14 Na2O + K2O + Li2O 13 to 20 It also relates to composites containing such yarns.