Method and apparatus for use in manufacture of cellulose casing
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United States of America Patent
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May 20, 2003
Grant Date -
N/A
app pub date -
Oct 4, 2001
filing date -
Oct 4, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a method of sizing nonderivatized extruded cellulosic tubes by the use of a mandrel structure that includes a hollow sizing portion having openings which gather gas bubbles that may evolve at the interface between the extruded tube and the sizing portion and allows the gas to pass into the hollow interior of the mandrel. The mandrel contains a sizing portion larger than the extruded tube, which allows for improved sizing of nonderivatized extruded tubes that are used as casings.
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