GLASS COMPOSITIONS COMPRISING TWO GLASSES HAVING DIFFERENT THERMAL EXPANSION COEFFICIENTS; IRREGULARLY SHAPED GLASS FIBRES MADE THEREOF

摘要

Compositions for producing irregularly-shaped dual-glass fibers include a first glass composition and a second glass composition, the first and second glass compositions having nonidentical coefficients of thermal expansion, the difference between the coefficients of thermal expansion being greater than about 2.0 ppm/ DEG C.