Thicker optical recording layers comprising a tetra dye having a metallized azo dianionic dye with cationic dye counterions
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United States of America Patent
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Mar 26, 2002
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N/A
app pub date -
Oct 16, 1996
filing date -
Oct 16, 1996
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Expired
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Abstract
The present invention discloses optical recording elements having optical recording layers containing tetra dyes. The dyes have metallized azo dianionic dye with cationic dye counterions. The recording layer has a thickness from 225 to 300 nm.
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