Fibers, flat textile structures, and methods
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United States of America Patent
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May 22, 2001
Grant Date -
N/A
app pub date -
Dec 11, 1998
filing date -
Dec 11, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Fibers, preferably electret fibers, made of materials which contain predominantly fiber-forming polymer or polycondensate, with a preparation applied onto the fibers, where the applied preparation contains at least one active substance which has volatilized after a time period of 20 minutes at a temperature of at most 250.degree. C., preferably at most 230.degree. C., to at least 80 weight % are disclosed. The active substance is preferably a compound having the general formula (I) R.sub.1 R.sub.2 R.sub.3 NO (I) where R.sub.1 is hydrogen or an unsubstituted or substituted C.sub.1 -C.sub.30 alkyl, alkenyl, or aryl group, and R.sub.2 and R.sub.3, independently of one another, are hydrogen or unsubstituted or substituted C.sub.1 -C.sub.10 alkyl, alkenyl, or aryl groups.
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