Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1999-03-29
2000-07-25
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548482, C07D20944
Patent
active
060938323
ABSTRACT:
The invention relates to novel phthalocyanine compounds, their intermediates and a process for their preparation. The inventive phthalocyanine compound absorbs in the near infrared region of the spectrum with a high absorption coefficient which features high solubility in solvents, good compatibility with resins and high aging resistance, thus finding application as a near infrared ray absorbing material or a light-heat conversion material with great advantage and to a process for producing the phthalocyanine compound. The novel phthalocyanine compound has the following general formula: ##STR1## wherein R represents alkyl or alkoxyalkyl; X represents halogen, alkylthio, phenylthio which may be substituted, or naphthylthio which may be substituted; M represents a couple of hydrogen atoms, a divalent metal, or a trivalent or tetravalent metal derivative. The near infrared ray absorbing and light-heat conversion materials containing the above phthalocyanine compound are also described.
REFERENCES:
patent: 5750229 (1998-05-01), Oguchi et al.
patent: 5783694 (1998-07-01), Hagen
patent: 5973140 (1999-10-01), Kumagae et al.
Eda Tsunehito
Fujita Shigeo
Kumagae Yojiro
Masaoka Toshihiro
Mitsui Chemicals Inc.
Shah Mukund J.
Sripada Pavanaram K
Yamamoto Chemicals Inc.
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