Method of cleaning or purifying a polymer
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United States of America Patent
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N/A
Issued Date -
May 5, 2005
app pub date -
Oct 29, 2003
filing date -
Oct 29, 2003
priority date (Note) -
Abandoned
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Abstract
A method of cleaning or purifying a polymer which is intended for medical or pharmaceutical use, which method comprises contacting the polymer with an extracting solvent comprising or consisting of an aliphatic alcohol, whereby impurities contained in the polymer are substantially extracted.
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