CROSSLINKED POLYETHYLENE ELASTIC FIBERS

摘要

CROSSLINKED POLYETHYLENE ELASTIC FIBERS The present invention relates to crosslinked. olefin elastic fibers where the olefin materials is specifically selected to provide a more robust fiber with higher tenacity and greater temperature stability. Such fibers will be less subject to breakage during fiber spinning and post-spinning {downstream processing) operations including spool formation and unwinding. The specific olefin material used is a blend having an overall melt index (h) of less than 2.5 g/10 min before crossl inking with a density in the range of 0.865 to 0.885 g/cm . One component of the blend will be characterized as having either a density in the range of from 0.855 to 0.88 g/cm'1 or a residual crystallinity at 80°C of greater than 9% but not both. The at least one other component will meet at least whichever characteristic the first component does not meet.