Azo compound and dye polarizing film containing the same
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United States of America Patent
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Issued Date -
Oct 14, 2010
app pub date -
Jun 21, 2007
filing date -
Jun 22, 2006
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Abandoned
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Abstract
Disclosed is an azo compound represented by the formula (1) below, a salt thereof, or a copper complex salt compound thereof.(In the formula, R1 and R2 independently represent a hydrogen atom, a sulfonic acid group, a lower alkyl group or a lower alkoxyl group; R3-R6 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxyl group; R7 represents a lower alkyl group or a lower alkoxyl group; and n represents 0 or 1.)
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