REFINED FIBER
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United States of America Patent
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N/A
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N/A
app pub date -
Nov 30, 2012
filing date -
Oct 23, 2007
priority date (Note) -
Abandoned
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Abstract
A process for obtaining a refined fiber having an average length of 2 to 4 millimeter, a filler retention value of at least 18%, and a green strength value of at least 1.8 mJ/mm2 is described. In the process, never dried yarn or sliver having a length of at least 1 meter is refined, by at least the step of feeding the yarn or sliver and a liquid into a refiner, which includes refiner fillings having a body surrounding a central hole, and at least one inlet for the yarn or sliver. Thus obtained fibrillated fiber may be used for making friction materials, gaskets, brake pads, or brake linings.
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