Optical recording medium, optical recording material and metal complex compound
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United States of America Patent
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Nov 13, 2012
Grant Date -
Dec 22, 2011
app pub date -
Aug 25, 2011
filing date -
Jul 14, 2005
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Abstract
An optical recording medium having excellent light resistance that includes a substrate; and a recording layer which is provided on the substrate directly or on another layer provided on the substrate, wherein the recording layer is capable of recording and/or reading information by irradiating light thereon, the recording layer including a metal complex compound comprising an azo compound having a coupler component with a Meldrum's acid structure and a diazo component with a nitrogen-containing heterocyclic aromatic ring structure, and a metal ion coordinated to the azo compound.
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