Elastic articles having improved unload power and a process for their production
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 31, 1993
Grant Date -
N/A
app pub date -
Feb 19, 1992
filing date -
Feb 19, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a process for improving the unload power of a precursor elastic film comprising orienting the film to a draw ratio in the range of about 2:1 to about 20:1 followed by annealing. Further disclosed is an elastic film oriented to a draw ratio in the range of about 2:1 to about 20:1 and comprising a copolymer of ethylene polymerized with at least one comonomer selected from the group consisting of C.sub.3 to C.sub.20 alpha-olefins and C.sub.3 to C.sub.20 polyenes, wherein the copolymer has a density in the range of about 0.855 g/cm.sup.3 to about 0.9 g/cm.sup.3, a melt index in the range of about 0.5 to about 50, with a composition distribution index at least about 45 percent.
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