GLASS YARNS SUITABLE FOR REINFORCING ORGANIC AND/OR INORGANIC MATERIALS

摘要

THE PRESENT INVENTION RELATES TO REINFORCING GLASS YARNS, THE COMPOSITIONS OF WHICH COMPRISES THE FOLLOWING CONSTITUENTS WITHIN THE LIMITS DEFINED HEREINBELOW, EXPRESSED IN PERCENTAGES BY WEIGHT: SIO2 58 TO 62AL2O3 10 TO 16AO MORE THAN 18MGO MORE THAN 1.5AO+MGOLESS THAN 28NA2O+K2O+LI2O LESS THAN 2TIO2 LESS THAN 1.5FE2O3 LESS THAN 0.5B2O LESS THAN 2F2 LESS THAN 2 THIS COMPOSITIONS FUTHERMORE COMPRISING LESS THAN 1OF OTHER CONSTITUENT(S) AND COMPRISING MORE THAN 0.5OF AT LEAST ONE OF THE THREE COMPONENTS F2B2O3 AND LI2OTHESE YAMS HAVE A COMPOSITION PROVIDING AN EXCELLENT COMPROMISE BETWEEN ITS COST AND ITS FIBERIZABILITY.