The present invention relates to an intermediate web comprising of high
glass transition polymer fibers. The fibers are spun at low to moderate
speeds and have a relative crystallinity of from 10% to 75% of the maximum
achievable crystallinity. The intermediate web is a low crystallinity web
that exhibits shrinkage of more than 30% and elongation to break of more
than 80% at high strain rates. This web can be heat treated to reduce
shrinkage to less than 15% while the web is capable of at least about 60%
elongation at a strain rate of at least about 50 second.sup.-1.
