发明名称 |
DIIMMONIUM COMPOUND AND USE THEREOF |
摘要 |
Disclosed is a near-infrared absorbing compound which does not contain antimony or arsenic, and has excellent stability, especially excellent heat resistance, light resistance and moist heat resistance. Also disclosed are a near-infrared absorbing filter, which is produced by using the near-infrared absorbing compound, and has excellent resistance such as light resistance and heat resistance, an optical filter and an optical recording medium. Specifically disclosed are a diimmonium compound represented by the formula (1) below and a near-infrared absorbing filter obtained by using such a diimmonium compound. Further specifically disclosed are a near-infrared absorbing filter wherein an adhesive layer containing the diimmonium compound is arranged on a transparent supporting body, and an optical filter using such a near-infrared absorbing filter. (In the formula (1), R 1 to R 8 independently represent a hydrogen atom or an optionally substituted aliphatic hydrocarbon residue; R 9 to R 11 independently represent an aliphatic hydrocarbon residue which may have a halogen atom; and rings A and B may further have a substituent.) |
申请公布号 |
CA2578107(A1) |
申请公布日期 |
2006.03.16 |
申请号 |
CA20052578107 |
申请日期 |
2005.09.02 |
申请人 |
NIPPON KAYAKU KABUSHIKI KAISHA |
发明人 |
IKEDA, MASAAKI;KANEKO, SYOUICHI;SEGAWA, JUNICHI;KURATA, TAKAAKI |
分类号 |
C07C251/30;B41M5/26;C09K3/00;G02B5/22;G11B7/244 |
主分类号 |
C07C251/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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