Method for the cleaning of filament and fiber spinning devices
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United States of America Patent
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Sep 8, 2009
Grant Date -
Nov 4, 2004
app pub date -
Mar 11, 2004
filing date -
Mar 14, 2003
priority date (Note) -
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Abstract
Method for the cleaning of spinning devices with a plurality of spinning apertures for the output of molten plastic. With the spinning device in operation, individual dirt-contaminated and/or clogged spinning apertures are closed with plugs, these plugs-consisting of at least in part of at least one oxidizable substance. The spinning device is subjected in the course of its cleaning to a pyrolysis treatment for the breakdown of residual plastic. The spinning device is subjected to an oxidative treatment, so that the oxidizable substance is oxidized.
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