Method for preparing regenerated cellulose fiber by two-step coagulating bath process
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United States of America Patent
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Feb 24, 2015
Grant Date -
Nov 6, 2008
app pub date -
Apr 21, 2006
filing date -
May 30, 2005
priority date (Note) -
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Abstract
The present invention relates to a non-toxic process and system for pilot-scale production of cellulose products, and particularly to a process and system for pilot-scale production of cellulose products by using aqueous sodium hydroxide/urea solution pre-colled to lower than −8° C., in which cellulose could dissolved rapidly. The said process and system can be used to produce fibers, films, chromatographic packings, or nonwovens of regenerated cellulose, as well as to produce a variety of high added-value products by adding other materials such as functional materials, nano-materials, etc.
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