Filter material take-up product for air filter
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United States of America Patent
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Jun 16, 2009
Grant Date -
Feb 12, 2004
app pub date -
Sep 26, 2001
filing date -
Dec 21, 2000
priority date (Note) -
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Abstract
A filter material take-up product and a paper winding core, which are free from secondary-contamination by an outgas while being transported or stocked. Irrespective of its application such as building air conditioner, an air cleaner or a semi-conductor factory, the amount of the outgas to be generated from the filter take-up product for the air filter can be kept at a negligible level. The filter take-up product for the air filter is produced by coating and wrapping the filter material for the air filter, as wound on the winding core, with a film wrapping material which is so made of phenolic compounds, carboxylate esters, phosphate ester or cyclic siloxance as to have an outgas generation in an amount of 100 ng/g or less by the dynamic head space method.
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