Sized glass fabric and method

Claim 1

A SIZED, WOVEN GLASS FABRIC COMPRISING GLASS FIBERS SIZED WITH A NON-MIGRATORY, AQUEOUS SIZING COMPOSITION WHICH IS READILY REMOVED UPON SUBSEQUENT HEATING OF THE SIZED, WOVEN GLASS FABIC AT A TEMPERATURE EFFECTING THERMAL DESTRUCTION OF THE SAID SIZING COMPOSITION AND VOLATILIZATION OF AT LEAST THE ORGANIC COMPONENTS THEREOF, SAID SIZING COMPOSITION PRIOR TO HEATING CONSISTING ESSENTIALLY OF THE DIRED RESIDUE OF A SIZING COMPOSITION CONSISTING ESENTIALLY OF (1) 3 TO 8 PERCENT BY WEIGHT OF AN AMYLOSE CONTAINING STARCH MIXTURE OF (A) 45 TO 55 PERCENT BY WEIGHT OF A HIGH AMLYOSE STARCH COMPONENT HAVING AN AMYLOSE CONTENT OF ABOUT 50 TO ABOUT 60 PERCENT BY WEIGHT, AND (B) 45 TO 55 PERCENT BY WEIGHT OF A WATER REPELLENT, LOW AMYLOSE STARCH COMPONENT HAVING AN AMYLOSE CONTENT OF ABOUT 20 TO 30 PERCENT BY WEIGHT, (2) 25 TO 70 PERCENT BY WEIGHT OF A LUBRICANT BASED ON THE AMOUNT OF STARCH MIXTURE IN THE SIZE, (3) 4 TO 15 PERCENT BY WEIGHT OF A TEXTILE SOFTENER BASED UPON THE WEIGHT OF THE STARCH MIXTURE IN THE SIZE, AND (4) 91 TO 96 PERCENT BY WEIGHT OF WATER, AND HAVING A VISCOSITY OF ABOUT 1 TO ABOUT 40 CENTIPOISES AT 20*C., AND WHEREIN THE BINDER CONTENT OF THE SIZED FIBERS PRIOR TO HEAT REMOVAL RANGES FROM ABOUT 0.7 TO ABOUT 2 PERCENT BY WEIGHT ON AN ADD-ON, DRY BASIS, BASED UPON THE WEIGHT OF THE GLASS FIBERS.