Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Owens Corning Fiberglass CorpfiledCriticalOwens Corning Fiberglass Corp
Publication of MX9709498ApublicationCriticalpatent/MX9709498A/en
Boron-free glass fibers suitable for textile and reinforcements are described. The glass fibers have compositions consisting essentially of SiO2, CaO, Al2O3, and MgO. In a preferred embodiment, the glass contains essentially no fluorine, sulfate, or titania. These glass fiber compositions advantageously have broad or large values for delta T (i.e., the difference between the log (3) or forming temperature --the temperature at which the glass has a viscosity of approximately 1000 poise-- and the liquidus temperature), e.g., a delta T of at least about 125 degree F (52 degree C), more preferably of at least about 150 degree F (66 degree C).