Amino antipyrine based azo ligands and their metal complexes for use as optical recording media
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United States of America Patent
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Dec 1, 2009
Grant Date -
Dec 25, 2008
app pub date -
Jul 29, 2005
filing date -
Jul 29, 2004
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Abstract
The present invention provides novel azo dye material based on antipyrine azo structure and metal complexes containing such azo compounds which are suitable for optical recording media. The dyes exert high light-fastnesses properties and excellent recording characteristics. In particular the invention relates to optical layers comprising such dyes, to a method for manufacturing such optical layers and to optical recording media comprising such optical layers.
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