Method of forming meltblown webs containing particles
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United States of America Patent
Stats
-
Nov 20, 2001
Grant Date -
N/A
app pub date -
Oct 15, 1999
filing date -
Dec 31, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A method of forming a meltblown web having meltblown fibers and particles is provided. The particles are heated to a temperature approximating that of the meltblown fibers as they are being extruded. As a portion of any heated particle impacts the skin of one or more solidifying meltblown fibers, that portion of any heated particle penetrates into one or more solidifying particles. Although a portion of any particle becomes embedded in and retained by one or more meltblown fibers, such surface penetration is generally slight desirably leaving a substantial amount of surface area of any particle available for interaction with any medium to which a web may be exposed.
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