Xanthene dye complexes
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United States of America Patent
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-
Jan 30, 1990
Grant Date -
N/A
app pub date -
Jun 3, 1987
filing date -
Jun 3, 1987
priority date (Note) -
Expired
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Abstract
Photooxidizable dye complexes of the formula (I): X.sup.-n [Y.sup.+ ].sub.n (I) where X is a xanthene dye and Y is gegen ion selected from sulfonium, phosphonium, iodonium, pyrylium, hydrazinium, and hydrazide ions; and n is 1 to 2; the complexes are useful as photoinitiators or in photobleachable imaging systems.
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