Near-infrared absorbing compound and near-infrared absorbing filter using same

A near-infrared and compound technology, which is applied in the fields of near-infrared absorbing compositions, near-infrared absorbing compounds, and near-infrared absorbing filter materials, can solve the problems that cannot be practically applied, that there is no relevant data, and the molar absorption coefficient is low.

Inactive Publication Date: 2006-03-01
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are ways to use perchlorate ions, hexafluorophosphate ions, fluoroborate ions, etc. to meet the harmless needs, these counter ions are not satisfactory in terms of heat and humidity resistance
Also, although compounds using naphthalene disulfonate as a counter ion have been proposed (for example, see Japanese Patent Application Laid-Open (KOKAI) No. 10-316633 (page 5)), because of low molar absorptivity and greenish cast, They cannot be practically applied
[0003] We also know compounds that use triflate as a counterion, but no data are available on them (for example, see Japanese Patent Publication (KOKOKU) No. 7-51555 (page 2))

Method used

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  • Near-infrared absorbing compound and near-infrared absorbing filter using same
  • Near-infrared absorbing compound and near-infrared absorbing filter using same
  • Near-infrared absorbing compound and near-infrared absorbing filter using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Embodiment 1 (synthetic embodiment 1) (compound No. 37 in synthetic table 4)

[0070] Add 1.8 parts of N, N, N', N'-tetrakis{p-di(n-butyl)aminophenyl}-p-phenylenediamine to 10 parts of DMF, heat to 60°C to dissolve, then add the pre-reaction solution 1.08 parts of silver trifluoromethylsulfate in 10 parts of DMF for 30 minutes. After cooling, the precipitated silver was filtered off. 20 parts of water were slowly added dropwise to the reaction solution (filtrate), and stirred for 15 minutes. The resulting black crystals were filtered off and washed with 50 parts of water, and the resulting filter cake was dried to obtain 2.3 parts of No. 37 compound.

[0071] lambda 最大 : 1100 nm (dichloromethane)

[0072] Synthetic Example 2 (Compound No. 39 in Synthetic Table 4)

[0073] The method is the same as in Example 1, except that N, N, N', N'-tetra{p-di(n-butyl)aminophenyl}-p-phenylenediamine is replaced by N, N, N', N'- Tetra{p-bis(isoamyl)aminophenyl}-p-phenylenediamin...

Embodiment 2

[0084] Embodiment 2 (synthetic embodiment 6) (compound No. 49 in synthetic table 5)

[0085] In 17 parts of DMF, add 3 parts of N, N, N', N'-tetrakis{p-bis(n-butyl)aminophenyl}-p-phenylenediamine and 2.3 parts of potassium nonafluorobutylsulfonate, heat Dissolve at 60°C, then add 1.2 parts of silver nitrate dissolved in 17 parts of DMF before the reaction, and react for 60 minutes. After cooling, the precipitated silver was filtered off. 35 parts of water were slowly added dropwise to the reaction solution (filtrate), and stirred for 15 minutes. The resulting black crystals were filtered off and washed with 50 parts of water, and the resulting filter cake was dried to obtain 4.6 parts of No. 49 compound.

[0086] lambda 最大 : 1100 nm (dichloromethane)

Embodiment 3( Synthetic Embodiment 7

[0087] Embodiment 3 (synthetic embodiment 7) (compound No. 17 in synthetic table 2)

[0088] Add 3 parts of N,N,N',N'-tetrakis{p-bis(cyanopropyl)aminophenyl}-p-phenylenediamine and 1 part of potassium nonafluorobutanesulfonate to 17 parts of DMF, Heat to 60°C to dissolve, then add 0.5 parts of silver nitrate dissolved in 17 parts of DMF before the reaction, and react for 60 minutes. After cooling, the precipitated silver was filtered off. 35 parts of water were slowly added dropwise to the reaction solution (filtrate), and stirred for 15 minutes. The resulting black crystals were filtered off and washed with 50 parts of water, and the resulting filter cake was dried to obtain 3.6 parts of No. 17 compound.

[0089] lambda 最大 : 882 nm (acetone)

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Abstract

A near-infrared absorbing filter which does not contain antimony, arsenic or the like and is excellent in heat resistance is disclosed. The near-infrared absorbing filter is characterized by containing a compound composed of a salt of cations obtained by oxidizing a substance represented by the formula (1) below and anions (X), which are alkylsulfonic acid ions having 1-8 carbon atoms that are necessary for neutralizing the cations and not substituted or may be substituted with a halogen atom, a lower alkoxy group, a cyano group, or a hydroxyl group. (1) (in the formula (1), rings A and B may have a substituent, and R1-R8 independently represent a substituted or non-substituted alkyl group, cycloalkyl group, alkenyl group or aryl group having 1-8 carbon atoms.

Description

technical field [0001] The present invention relates to a kind of near-infrared absorption compound, and it has excellent heat resistance, and is harmless; It relates to a kind of near-infrared absorption filter material; It relates to a kind of near-infrared absorption composition; Near-infrared absorption filter material for display panels. Background technique [0002] Diimonium salt compounds and ammonium salt compounds have been widely recognized as near-infrared absorbers (for example, see Japanese Patent Publication (KOKOKU) No. 7-51555 (page 2), Japanese Patent Application Laid-Open (KOKAI) No. 10-316633 (page 5), and Japanese Patent Publication (KOKOKU) No. 43-25335 (pages 7-14)), and are widely used, such as being used in near-infrared absorption filter materials, for heat shielding films, sunglasses, etc. . Among these compounds, the counter ions are hexafluoroantimonate ions, respectively, those of hexafluoroarsenate ions are excellent in heat resistance, and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/22C09K3/00C07C251/30
CPCG02B5/223C07C251/30C09K3/00G02B5/22
Inventor 北山靖之山村重夫
Owner NIPPON KAYAKU CO LTD
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