Cotton fiber particulate and method of manufacture
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United States of America Patent
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Sep 29, 2009
Grant Date -
Mar 22, 2007
app pub date -
Jul 24, 2006
filing date -
Jul 22, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cotton fiber particulate and method of manufacture including, generally, obtaining cotton fibers; mixing the cotton fibers with a solvent such as water to obtain a fiber furnish; milling the fiber furnish; and drying the fiber furnish to recover the cotton fiber particulate. Other steps include modifying the pH of the fiber furnish with a material such as calcium carbonate in an effort to make the fibers brittle, and filtering the fiber furnish to recover the cotton particulate. The fibers are milled to between 5-25 microns in length with a mean length of less than 50 microns with a mean length of 20 microns preferred.
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