Polarizing plate protective cellulose triacetate film
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United States of America Patent
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Nov 20, 2001
Grant Date -
N/A
app pub date -
Feb 29, 2000
filing date -
Mar 3, 1999
priority date (Note) -
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Abstract
A cellulose triacetate film characterized in being comprised of cellulose triacetate which is prepared by employing cotton liter as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 3.5 to 4.5, or being comprised of cellulose triacetate which is prepared by employing wood pulp as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 4.0 to 5.0.
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