Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1997-01-21
1999-01-12
Angebranndt, Martin
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
43027019, 430945, 534707, 534706, G11B 724
Patent
active
058586130
ABSTRACT:
An optical recording medium which can be recorded and read at a short wavelength (about 635-680 nm) or which can be recorded and read at two wavelengths, the short wavelength and a conventional wavelength (about 780 nm) has a recording layer containing an azo metal complex dye obtained by reacting a metal compound with an azo compound of formula (I) or an azo compound of formula (II). ##STR1## In formula (I), Q.sub.1 is a group of atoms necessary to form an aromatic ring with two C, A is C or a hetero-atom, Q.sub.2 is a group of atoms necessary to form an aromatic ring with two C and A, and Q.sub.3 is a group of atoms necessary to form an aromatic ring with C, N and A, fused to the aromatic ring completed by Q.sub.2. In formula (II), Q.sup.1 is a 8-quinolyl radical and Q.sup.2 is a 2-imidazolyl radical whose nitrogen at the 1-position has active hydrogen.
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Highly Selective Spectrophotometric Determination of Trace Amounts of Vanadium (V) with2-(8-Quinolyazo) S-N, N-Diethylaminophenol By Reversed-Phase Partition Liquid Chromotography; Hoshino et al; Japanese Society for Analytical Chemistry; 1982; pp. 435-438; vol. 31.
Syntheses of Azo Dyes Containing 4.5 Diphenylimidazole and Their Evaluation as Analytical Reagents; Elsevier Scientific Publishing Company; Analytica Chimica Acta 81; 1976; pp. 131-141.
Kambe Emiko
Kitagawa Sumiko
Monden Atsushi
Shinkai Masahiro
Suzuki Takahiko
Angebranndt Martin
TDK Corporation
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