Non-woven layer consisting substantially of short polyolefin fibers
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United States of America Patent
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Oct 29, 1996
Grant Date -
N/A
app pub date -
Oct 3, 1994
filing date -
Apr 3, 1992
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a non-woven layer that consists substantially of short polyolefin fibers the nonwoven layer being a felt with in the plane of the layer substantially randomly oriented fibers with a length of 40-100 mm, a tensile strength of at least 1.2 GPa and a modulus of at least 40 GPa. The invention also relates to a method for the manufacture of this felt and to layered structures in which the felt is used. Layered structures comprising a non-woven layer according to the invention have improved specific energy absorption on impact of ballistic projectiles.
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