Glass fiber has low dielectric constant

GLASS FIBER OF LOW DIELECTRIC CONSTANT. THE INVENTION RELATES TO GLASS FIBER OF LOW DIELECTRIC CONSTANT, MADE OF GLASS WITH A DIELECTRIC CONSTANT NOT MORE THAN 5 AND CONTAINING 45 TO 65 BY WEIGHT OF ORC OF 9 TO 20 WEIGHT ALO, FROM 13 TO 30 WEIGHT BO, 4 TO 10 IN WEIGHT CAD MGO ZNO, 0 TO 5 IN WEIGHT IOL NAO KO, COMPARED TO TOTAL WEIGHT GLASS, THE SUM OF THE RATIO ORC ALO, BO, CAD, MGO, ZNO, IOL NAO AND KO IS AT LEAST 95 IN WEIGHT.