WO2005022213A1 - 光学フィルター - Google Patents
光学フィルター Download PDFInfo
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- WO2005022213A1 WO2005022213A1 PCT/JP2004/012230 JP2004012230W WO2005022213A1 WO 2005022213 A1 WO2005022213 A1 WO 2005022213A1 JP 2004012230 W JP2004012230 W JP 2004012230W WO 2005022213 A1 WO2005022213 A1 WO 2005022213A1
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- WIPO (PCT)
- Prior art keywords
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- substituent
- atom
- aryl
- optical filter
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- 230000003287 optical effect Effects 0.000 title claims abstract description 53
- 150000001875 compounds Chemical class 0.000 claims abstract description 114
- 125000001072 heteroaryl group Chemical group 0.000 claims abstract description 70
- 238000010521 absorption reaction Methods 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 125000003107 substituted aryl group Chemical group 0.000 claims abstract description 4
- 125000001424 substituent group Chemical group 0.000 claims description 192
- 125000003118 aryl group Chemical group 0.000 claims description 91
- 125000000217 alkyl group Chemical group 0.000 claims description 83
- 125000003545 alkoxy group Chemical group 0.000 claims description 46
- 125000005843 halogen group Chemical group 0.000 claims description 41
- 125000004104 aryloxy group Chemical group 0.000 claims description 30
- 125000003277 amino group Chemical group 0.000 claims description 28
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 25
- 125000004429 atom Chemical group 0.000 claims description 24
- 230000008033 biological extinction Effects 0.000 claims description 24
- 125000000623 heterocyclic group Chemical group 0.000 claims description 22
- 125000004414 alkyl thio group Chemical group 0.000 claims description 19
- 125000001188 haloalkyl group Chemical group 0.000 claims description 19
- 125000001841 imino group Chemical group [H]N=* 0.000 claims description 18
- 125000005110 aryl thio group Chemical group 0.000 claims description 17
- 125000005647 linker group Chemical group 0.000 claims description 17
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 13
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 12
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- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- 125000004434 sulfur atom Chemical group 0.000 claims description 8
- 125000006575 electron-withdrawing group Chemical group 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 6
- 125000005368 heteroarylthio group Chemical group 0.000 claims description 6
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 125000004437 phosphorous atom Chemical group 0.000 claims description 2
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- 125000002541 furyl group Chemical group 0.000 description 6
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- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
- C07C215/74—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
- C07C215/76—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton of the same non-condensed six-membered aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
- C07C323/23—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton
- C07C323/31—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton
- C07C323/33—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton having at least one of the nitrogen atoms bound to a carbon atom of the same non-condensed six-membered aromatic ring
- C07C323/34—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and nitrogen atoms, not being part of nitro or nitroso groups, bound to the same carbon skeleton having the sulfur atom of at least one of the thio groups bound to a carbon atom of a six-membered aromatic ring of the carbon skeleton having at least one of the nitrogen atoms bound to a carbon atom of the same non-condensed six-membered aromatic ring the thio group being a mercapto group
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B57/00—Other synthetic dyes of known constitution
- C09B57/10—Metal complexes of organic compounds not being dyes in uncomplexed form
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
Definitions
- the present invention relates to an optical filter, particularly to an optical filter having a high transmittance in a visible light region and having a function of effectively blocking near infrared rays.
- a plastic near-infrared absorbing film made of a resin containing a near-infrared absorbing dye Yuichi is well known.
- Applications include sunglasses, welding glasses, windows in buildings, cars, trains, airplanes, or optical readers for reading information.
- plasma display panels hereinafter referred to as “PDPs”
- PDPs plasma display panels
- Examples of near-infrared absorption filters described above include those containing metal ions such as copper and iron, nitroso compounds and their metal complex salts, cyanine compounds, squarylium compounds, dithiol metal complex compounds, and aminothiophenols. Near-infrared absorption of metal complex compounds, phthalocyanine compounds, naphthocyanine compounds, triallylmethane compounds, immonium compounds, diimmonium compounds, naphthoquinone compounds, anthraquinone compounds, amino compounds, amidium salt compounds, etc.
- a catechol-based metal complex compound in which an atom coordinated to a metal is an oxygen atom is also known as a compound similar to a dithiol-based metal complex compound and an aminothiophenol-based metal complex compound.
- This catechol-based metal complex compound was known to be insoluble in solvents, unlike the above-mentioned dithiol metal complex compound and aminothiophenol metal complex compound (I norg. Chem., Vol. 5, No. 15). (See page 42, 1966)), but it was not used for electronic display filters as described above.
- a near-infrared absorption filter which is excellent in light resistance and heat resistance and has no large absorption in the visible region, especially a new near-infrared absorption filter for an electronic display, is desired to be constantly emerging.
- the present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, an aminophenolate-based metal complex compound having a specific structure has high solubility in an organic solvent, excellent light resistance, excellent heat resistance, and is large in the visible light region.
- the present inventors have found that an optical filter having excellent near-infrared absorbing ability can be obtained by using this without absorbing, and the present invention has been completed. That is, the gist of the present invention is represented by the following general formula (1)
- a and a ′ each independently represent an aryl group which may have a substituent or a heteroaryl group which may have a substituent
- Ri and R 2 each independently represent Represents an alkyl group which may have a substituent, an aryl group which may have a substituent or a heteroaryl group which may have a substituent, wherein R i and R 2 are each other And Mi may represent a Group 10 metal atom.
- the present inventors have found that, when a ligand having a specific structure is used as a heteroatom-containing ligand of a metal complex compound, an excellent solution having high solubility and suppressed side absorption in the visible region is obtained. They have also found that an optical filter having near-infrared absorption ability can be obtained, and have completed the present invention. That is, the gist of the present invention is represented by the following general formula (4)
- a and a ′ each independently represent an aryl group which may have a substituent or a heteroaryl group which may have a substituent
- b and b ′ each represent Each independently represents an oxygen atom, a sulfur atom, or an imino group which may have a substituent
- c and c ′ each independently represent an aryl group or a substituent which may have a substituent.
- FIG. 1 is a view showing a transmittance curve of an optical filter according to the present invention obtained in Example 4.
- FIG. 2 is a view showing a transmittance curve of each compound used in Reference Example 2 in a range of 350 to 65 nm.
- FIG. 3 is a view showing a transmittance curve of the near-infrared absorbing filter of the present invention obtained in Example 11; BEST MODE FOR CARRYING OUT THE INVENTION
- the optical filter of the present invention is a compound group represented by the above general formulas (1) and (4), and a compound represented by the following general formula (2) and having a molar extinction coefficient of 1,000,000 or more. It is characterized by containing at least one compound selected from the group of compounds.
- a and a ′ are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group.
- Examples of the skeleton constituting the aryl group and the heteroaryl group include aryl groups such as a benzene ring and a naphthalene ring; and heteroaryl groups such as a pyridine ring and a pyrazine ring.
- the heteroaryl group is preferably a nitrogen-containing heteroaryl group.
- it is a phenylene group or a naphthylene group, particularly preferably a phenylene group.
- halogen atoms such as a fluorine atom, a chlorine atom, and a bromine atom; a hydroxyl group; a cyano group; an amino group; a chain, such as a methyl group, an ethyl group, a propyl group, an isopropyl group, and a t-butyl group; Chain or cyclic alkyl group; aryl group such as phenyl group and naphthyl group; heteroaryl group such as phenyl group, furyl group, pyridyl group and pyrazolyl group; methoxy group, ethoxy group, propoxy group, isopropoxy Alkoxy group such as t-butoxy group; aryloxy group such as phenoxy group and naphthyloxy group; heteroaryloxy group such as pyrid
- the amino group, alkyl group, aryl group, heteroaryl group, alkoxy group, aryloxy group, heteroaryloxy group, alkylthio group, arylthio group and heteroarylthio group further include a halogen atom, a hydroxyl group, a cyano group, an amino group ,
- an aryl group having a substituent or a heteroaryl group having a substituent is preferable, and a structure having the following structure is particularly preferable.
- R is a halogen atom, a hydroxyl group, a cyano group, an amino group which may have a substituent, an alkyl group which may have a substituent, an aryl group which may have a substituent, A heteroaryl group which may have a group, an alkoxy group which may have a substituent, an aryloxy group which may have a substituent, a heteroaryloxy group which may have a substituent Represents an alkylthio group which may have a substituent, an arylthio group which may have a substituent or a heteroarylthio group which may have a substituent, and n is 1 to Indicates an integer of 4.
- n 2 or more
- the adjacent R becomes a body, and one (CH 2 ) 3 —, one (CH 2 ) 4 —, etc.
- a condensed ring may be formed.
- R represents a halogen atom, a hydroxyl group, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.
- n is preferably an integer of 1 to 3, and more preferably 1 or 2.
- substitution position of R is preferably an ortho position or a para position, or an ortho position and a para position with respect to the oxygen atom to which the aryl group and the heteroaryl group are bonded.
- Ri and R 2 each independently represent an alkyl group which may have a substituent, an aryl group which may have a substituent, a heteroaryl group which may have a substituent , A halogen atom, or an amino group which may have a substituent.
- an alkyl group which may have a substituent, an aryl group which may have a substituent, and a heteroaryl group which may have a substituent are preferable.
- the Ri and R 2 may be linked to each other via a linking group.
- halogen atom examples include fluorine, chlorine, and bromine
- alkyl group examples include methyl, ethyl, 11-propyl, i-propyl, n-butyl, n-pentyl, and n- Xyl, ⁇ -octyl, 2-ethylhexyl, ⁇ -nonyl, cyclohexyl and other linear, branched or cyclic alkyl groups.
- a naphthyl group, anthryl group, a phenanthryl group, a pyrenyl group or a fluorenyl group; a heteroaryl group includes a phenyl group, a furyl group, a pyridyl group, a carbazolyl group, a quinoxalinyl group, an imidazolyl group, a pyrazinyl group or a pyrazolyl group; .
- the carbon number of the optionally substituted alkyl group is preferably 15 or less.
- the carbon number of the aryl group which may be substituted is preferably 30 or less, more preferably 20 or less, and particularly preferably 15 or less.
- the carbon number of the optionally substituted heteroaryl group is preferably 30 or less, more preferably 20 or less, and particularly preferably 15 or less.
- the substituent for the alkyl group, aryl group, heteroaryl group and amino group is not particularly limited as long as it does not adversely affect the stability of the dye. Specifically, a halogen atom, a carboxyl group, a sulfo group, a nitro group, a cyano group, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, a heteroaryl group, an alkylthio group, an arylthio group, an acyl group , Alkoxycarbonyl group, aryloxycarbonyl group, optionally substituted amino group, alkylsulfonyl group, arylsulfonyl group, octaalkylsulfonyl group, haloarylsulfonyl group, haloalkyl group, haloalkoxy And a haloaryloxy group. These groups may be further substituted with substituents as described above.
- Alkyl groups include methyl group, ethyl group And an alkyl group having about 1 to 12 carbon atoms such as
- an alkoxy group having about 1 to 12 carbon atoms such as an ethoxy group and a propoxy group is preferable.
- the aryl group is preferably an aryl group having about 6 to 20 carbon atoms, such as a phenyl group and a naphthyl group.
- An aryloxy group having about 6 to 20 carbon atoms such as an aryloxy group, a phenoxy group, and a naphthoxy group, is preferred.
- heteroaryl group examples include a heteroaryl group having about 4 to 20 carbon atoms, such as a chenyl group, a furyl group, a pyridyl group, a carbazolyl group, a quinoxalinyl group, an imidazolyl group, and a virazinyl group, and more preferably 4 to 1 carbon atoms. About two heteroaryl groups are preferred.
- the alkylthio group is preferably an alkylthio group having about 1 to 10 carbon atoms, such as a methylthio group and an ethylthio group.
- the arylthio group is preferably an arylthio group having about 6 to 20 carbon atoms, such as a phenylthio group.
- an acetyl group having about 2 to 20 carbon atoms such as an acetyl group and a bivaloyl group, is preferable.
- the alkoxycarbonyl group is preferably an alkoxycarbonyl group having about 1 to 10 carbon atoms, such as a methoxycarbonyl group and an ethoxycarbonyl group.
- the aryloxycarbonyl group is preferably an aryloxycarbonyl group having about 7 to 20 carbon atoms, such as a phenoxycarbonyl group and a naphthoxycarbonyl group.
- Examples of the amino group include an alkyl group having about 1 to 6 carbon atoms, such as a dimethylamino group, a ditrifluoromethylamino group, a diphenylamino group, a ditolylamino group, an acetylamino group, and a propionylamino group;
- An amino group which may be substituted with a substituent selected from the group consisting of an aryl group of about 20 and an acyl group of about 2 to 20 carbon atoms is preferable.
- the alkylsulfonyl group is preferably an alkylsulfonyl group having about 1 to 10 carbon atoms, such as a methanesulfonyl group and an ethanesulfonyl group.
- the arylsulfonyl group is preferably an arylsulfonyl group having about 6 to 20 carbon atoms, such as a benzenesulfonyl group.
- haloalkylsulfonyl group a haloalkylsulfonyl group having about 1 to 10 carbon atoms, such as a trifluoromethanesulfonyl group, is preferable.
- haloarylsulfonyl group a haloarylsulfonyl group having about 6 to 20 carbon atoms, such as a monofluorobenzenesulfonyl group, is preferable.
- the haloalkyl group is preferably a haloalkyl group having about 1 to 20 carbon atoms, such as a trifluoromethyl group.
- the haloalkoxy group is preferably a haloalkoxy group having about 1 to 10 carbon atoms, such as a trifluoromethoxy group.
- the haloaryloxy group is preferably a haloaryloxy group having about 6 to 20 carbon atoms, such as a monofluorophenoxy group.
- preferred specific examples of the optionally substituted alkyl group of Ri and R 2 include n-propyl group, i-propyl group, n-butyl group, isobutyl group, 2-methylbutyl group, isopentyl group, n-hexyl group, 2-ethylhexyl group, n-nonyl group, cyclohexyl Xyl group, cyclohexylmethyl group, methoxyethyl group, n-butoxyshetyl group, N, N-dimethylaminoethyl group, 2-cyanoethyl group, 2-piperidylethyl group, 2,2,2-trifluoroethyl group, benzyl group, etc.
- aryl group which may be substituted examples include 4-n-butylphenyl group, 4-n-octylphenyl group, N, N-dimethylaminophenyl group, 4-fluorophenyl group, and 3-cyanophenyl. Group, 3,5-dimethoxyphenyl group, 4-trifluoromethylphenyl group and the like.
- Preferred specific examples of the optionally substituted heteroaryl group include a 2-methylthenyl group, a benzothiazolyl group, and a pyrazolyl group.
- Preferred specific examples of the halogen atom include a fluorine atom.
- Preferred specific examples of the amino group which may have a substituent include an amino group which may be substituted by 1 or 2 alkyl groups having 1 to 10 carbon atoms such as a dimethylamino group.
- Ri and R2 are an aryl group which may have a substituent or a heteroaryl group which may have a substituent, and more preferably at least one substitution with an electron-withdrawing group.
- An aryl group or a heteroaryl group substituted with at least one substituent selected from the group consisting of an amino group which may be substituted with an alkyl group or an aryl group is mentioned.
- a and a ', and Ri and R 2 may be the same or different, but are preferably the same.
- Mi represents a Group 10 metal atom such as Ni, Pd or Pt, and is preferably Ni.
- the compound represented by the general formula (1) is preferable because it achieves a high molar extinction coefficient for near-infrared light of 800 nm to 1100 nm.
- the maximum molar extinction coefficient of near infrared rays of 800 to 1100 nm is usually 5000 or more, preferably 8000 or more, and more preferably 10,000 or more.
- a high molar extinction coefficient can be achieved, it is not limited to the MI group 0 metal atom, and therefore, a compound represented by the following general formula (2) and having a molar extinction coefficient of 10,000 or more can be used.
- the extinction coefficient is preferably 20000 or more, more preferably 30,000 or more.
- M 2 is a metal atom, and is not particularly limited as long as it is a metal atom that can take a 4-coordinated form.
- it is a Group 10 metal atom such as Ni, Pd or Pt; Co; Fe; Cu; And more preferably a Group 10 metal atom, and particularly preferably Ni.
- Preferred examples of the near-infrared absorbing compound used in the filter of the present invention as described above include those obtained by combining those which are preferred in the description of each substituent.
- preferred specific examples of the compound represented by the general formula (1) include, for example, those exemplified below. However, it is not limited to the following compounds.
- the compound represented by the above general formula (1) or (2) can be obtained from aromatic hydrocarbon solvents such as toluene; ether solvents such as tetrahydrofuran and dimethoxyethane; and ketone solvents such as methyl ethyl ketone.
- the solubility in the selected solvent is usually 1% or more, preferably Or 0.05% or more.
- a compound represented by the following general formula (3) is preferable because of its high solubility, and is usually 0.01% or more, preferably 0.05% or more, more preferably 0.1% or more, and still more preferably 0.1% or more. More than 5%, which is a new compound.
- R and R ', and n and n' have the same meanings as R and n described in the description of the substituent for a and a 'above.
- the M 1 is the same meaning as M 1 in formula (1).
- R3 and R 4 are each independently a halogen atom; an alkyl group; eight-necked alkyl group; an alkoxy group; and is selected from the ing group from an amino group which may be substituted with an alkyl group or Ariru group An aryl group or a heteroaryl group which is at least one-substituted by a substituent.
- the alkyl group is preferably an alkyl group having about 1 to 10 carbon atoms, such as an i-propyl group, an n-butyl group, an n-heptyl group, and an n-octyl group, and the haloalkyl group is trifluoromethyl.
- An octaalkyl group having about 1 to 10 carbon atoms such as a group is preferable, and the alkoxy group is preferably an alkoxy group having about 1 to 10 carbon atoms such as a methoxy group, an ethoxy group or a butoxy group, and a carbon atom such as a dimethylamino group.
- An amino group which may be substituted by 1 or 2 with an alkyl group having a prime number of 1 to 10 is preferable.
- the compounds represented by the above general formulas (1) to (3) used in the optical filter 1 of the present invention as described above generally have a ligand moiety having a molecular weight of preferably 800 or less, more preferably 500 or less. is there.
- the compounds represented by the general formulas (1) to (3) are synthesized according to a known method such as the method described in Russ. J. Gen. Chem., 66, 1842 (1996).
- the maximum absorption wavelength is usually 750 to 950 nm.
- a and a ' have the same meanings as a and a' in the general formula (1).
- b and b ′ each independently represent an oxygen atom, a sulfur atom or an imino group which may have a substituent.
- the absorption maximum wavelength of the compound tends to be on the short wavelength side (about 750 to 850 nm) as compared with the case where the compound is an oxygen atom or a sulfur atom. Therefore, it may be arbitrarily selected according to the intended absorption wavelength.
- Examples of the imino group that may have a substituent include an imino group that may have an alkyl group or an aryl group such as an imino group, a methylimino group, an ethylimino group, and a phenylimino group; Of these, an imino group which may have an imino group or an alkyl group is preferable, and an imino group is more preferable.
- c and c ′ each independently represent an aryl group which may have a substituent or a heteroaryl group which may have a substituent; A good aryl group.
- aryl group and heteroaryl group examples include phenyl, naphthyl, anthryl, phenanthryl, pyrenyl or fluorenyl, phenyl, furyl, pyridyl, imidazolyl, pyrazinyl or pyrazolyl. Or a 6-membered monocyclic ring or a condensed ring thereof.
- aryl groups a phenyl group or a 2-naphthyl group is preferred.
- c and c are directly each other or an alkylene group having about 1 to 6 carbon atoms such as one (CH 2 ) 3 — or one (CH 2 ) 4 ; or one OCH 20 —, -0 They may be linked via a linking group such as an alkylene dioxy group having about 1 to 4 carbon atoms such as (CH 2 ) 20 —.
- the total carbon number including the substituent R 1 or R 2 is preferably 50 or less, more preferably 30 or less, and particularly preferably 20 or less. It is.
- the above c and c ′ are characterized in that the carbon atom adjacent to the carbon atom bonded to the nitrogen atom to which it is bonded has a substituent such as Ra or Rb .
- Ra and Rb each independently represent a monovalent substituent.
- the monovalent substituent is not particularly limited as long as it does not adversely affect the stability of the dye, but is more preferably an alkyl group which may have a substituent, or may have a substituent.
- a sterically hindered group such as a substituent selected from the group consisting of an optionally substituted alkylthio group, an optionally substituted arylthio group and an optionally substituted heterocyclic thio group.
- Ra and Rb may form a condensed ring with the bonded aryl group or heteroaryl group.
- an 11-naphthyl group has a C 8 -C 9 bond having a phenyl group. since it has the same effect as the substituents R a or R b to the base, it is equivalent to an ortho-substituted phenyl group.
- Examples of the substituent of the alkyl group, the alkoxy group, the aryl group, the aryloxy group, the heterocyclic group, the heterocyclic oxy group, the alkylthio group, the arylthio group and the heterocyclic thio group include a halogen atom, a hydroxyl group, a cyano group, an amino group, Examples include a substituent selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an alkylthio group, an arylthio group and a heterocyclic thio group. Further, by selecting a substituent among them, for example, a halogen atom, a cyano group, a nitro group, or the like, the above substituent may fall into the category of the electron-withdrawing group.
- Examples of the electron-withdrawing group include those described in "Structure-Activity Relationship of Drugs in 122 of Chemicals, pages 96 to 103, published by Nankodo". Specifically, a halogen atom, a cyano group, a nitro group, a haloalkyl group, a haloalkoxy group, a haloaryloxy group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonyl group, an arylsulfonyl group ) ⁇ mouth alkylsulfonyl group, haloarylsulfonyl group and the like.
- the alkyl group is preferably an alkyl group having about 1 to 12 carbon atoms, such as a methyl group, an ethyl group, and isopropyl.
- the alkoxy group is preferably an alkoxy group having about 1 to 12 carbon atoms, such as an ethoxy group, a propoxy group and a t-butoxy group.
- the aryl group is preferably an aryl group having about 6 to 20 carbon atoms, such as a phenyl group and a naphthyl group.
- aryloxy groups having about 6 to 20 carbon atoms, such as the above aryloxy, phenoxy and naphthoxy groups.
- heterocyclic group examples include carbon atoms such as a chenyl group, a furyl group, a pyridyl group, a carpazolyl group, a quinoxalinyl group, an imidazolyl group, a virazinyl group, a pyrrolidinyl group, a pyrrolinyl group, an imidazolidinyl group, an imidazolinyl group, a pyrazolidinyl group, and a pyrazolinyl group.
- the heterocyclic oxy group is preferably a heterocyclic oxy group having about 3 to 20 carbon atoms, such as a chenyloxy group and a pyrazolinyl group.
- the alkylthio group is preferably an alkylthio group having about 1 to 10 carbon atoms, such as a methylthio group and an ethylthio group.
- the arylthio group is preferably an arylthio group having about 6 to 20 carbon atoms, such as a phenylthio group.
- heterocyclic thio group a heterocyclic thio group having about 3 to 20 carbon atoms, such as a furylthio group and a birazolinylthio group, is preferable.
- the haloalkyl group is preferably a haloalkyl group having about 1 to 20 carbon atoms, such as a Trif J-reromethyl group.
- the haloalkoxy group is preferably a haloalkoxy group having about 1 to 12 carbon atoms, such as a trifluoromethoxy group.
- haloaryloxy group examples include a monofluorophenoxy group and the like having 6 to 20 carbon atoms. A certain degree of haloaryloxy groups is preferred.
- an acyl group having about 2 to 20 carbon atoms such as an acetyl group or a piperoyl group, is preferable.
- an alkoxycarbonyl group having about 1 to 10 carbon atoms such as a methoxycarbonyl group and an ethoxycarbonyl group, is preferable.
- the aryloxycarbonyl group is preferably an aryloxycarbonyl group having about 7 to 20 carbon atoms, such as a phenoxycarbonyl group and a naphthoxycarponyl group.
- the alkylsulfonyl group is preferably an alkylsulfonyl group having about 1 to 12 carbon atoms, such as a methanesulfonyl group and an ethanesulfonyl group.
- the arylsulfonyl group is preferably an arylsulfonyl group having about 6 to 20 carbon atoms, such as a benzenesulfonyl group.
- the haloalkylsulfonyl group is preferably a haloalkylsulfonyl group having about 1 to 12 carbon atoms, such as a trifluoromethanesulfonyl group.
- the haloarylsulfonyl group is preferably a haloarylsulfonyl group having about 6 to 20 carbon atoms, such as a monofluorobenzenesulfonyl group.
- R a and R b are preferably an alkyl group which may have a substituent, an alkoxy group which may have a substituent, an aryl group which may have a substituent, A heterocyclic group, a heterocyclic group which may have a substituent, a heterocyclic group which may have a substituent, or an electron-withdrawing group, and more preferably, a cyano group,
- the above c and c ′ may have a substituent in addition to R a and R b .
- the substituent is not particularly limited as long as it does not adversely affect the stability of the dye.
- a group different from R a or R b is more preferable.
- c and c ′ having the substituent R a or R b preferably, 11 & or 1 ⁇ 13 is an alkyl group or an alkoxy group, and further a group consisting of a halogen atom, a cyano group, a haloalkyl group and a haloalkoxy group.
- R a or R b is a halogen atom, a cyano group, a haloalkyl group or a haloalkoxy group, and further a substitution selected from the group consisting of an alkyl group and an alkoxy group
- a phenyl group mono- or di-substituted with a group a phenyl group di- or tri-substituted with an alkyl group or an alkoxy group, particularly substituted at the ortho- and / or para-position with respect to Ra or Rb ;
- a naphthyl group is exemplified.
- M 2 has the general formula (2) has the same meaning as M 2 of 4 but it if not specifically limited metal atom capable of forming a coordination form, Group 10 such as preferably N i, Pd or P t Fe; Cu; or Zn, more preferably a Group 10 metal atom, and particularly preferably Ni.
- Preferred examples of the near-infrared absorbing compound used in the filter of the present invention as described above include those obtained by combining those compounds which are preferred in the description of the respective substituents. And a compound represented by the formula (5).
- b, b ', c, c', R a , R b , M 2 , R and n are as described above, and R 'and n' are each R And n.
- Preferred specific examples of the compound used in the optical filter of the present invention include, for example, the following. However, it is not limited to the following compounds.
- the compounds represented by the above general formulas ( 4) and (5) used in the optical filter of the present invention as described above preferably have a ligand moiety having a molecular weight of usually 100 or less, more preferably It is a compound of 600 or less.
- the maximum molar extinction coefficient of the compounds represented by the above general formulas (4) and (5) in the near infrared region in the range of 800 to 1100 nm is usually 5,000 or more, preferably 8000 or more, more preferably It is 10,000 or more.
- ether solvents such as tetrahydrofuran and dimethoxyethane of the compounds represented by the above general formulas (4) and (5);
- ketone solvents such as methyl ethyl ketone;
- the solubility in a solvent selected from a mixed solvent with an aromatic hydrocarbon solvent is usually 0.1% or more, preferably 0.25. % Or more, more preferably 0.5% or more, and particularly preferably 1% or more.
- the compounds represented by the general formulas (4) and (5) can be prepared according to known methods such as the method described in Russ. J. Gen. Chem., Vol. 66, p. 1842 (1996).
- the absorption maximum wavelength is usually 750 to 950 nm.
- the optical filter of the present invention further comprises at least one compound selected from the group consisting of compounds represented by the following general formulas (6) to (10) to provide an optical filter having a wavelength of 800 to 1100 nm. Since it can absorb a wide range of near-infrared rays in a wide range, it is preferable particularly when used for electronic display filters.
- 5-11 12 and 1 to 1 () are each independently hydrogen atom, a halogen atom, a hydroxyl group, a nitro group, Shiano group, an alkyl group which may be substituted, location Aryl group which may have a substituent, heteroaryl group which may have a substituent, alkoxy group which may have a substituent, aryloxy group which may have a substituent or substitution Represents an amino group which may have a group, wherein R S to R 12 may be such that two adjacent substituents are connected via a linking group;
- the substituent of the alkyl group, aryl group, heteroaryl group, alkoxy group and aryloxy group is not particularly limited as long as it does not adversely affect the stability of the dye.
- Specific examples thereof include a halogen atom, a cyano group, an alkyl group, an aryl group, an alkoxy group and an aryloxy group, preferably a halogen atom, a cyano group, an alkyl group having 1 to 6 carbon atoms, a phenyl group, and a carbon atom. 1 to 10 alkoxy groups or phenoxy groups.
- substituent of the amino group examples include an alkyl group and a phenyl group, and are preferably an alkyl group having 1 to 4 carbon atoms.
- R 5 to R 12 include a hydrogen atom; a halogen atom such as a chlorine atom, a nitrogen atom and a fluorine atom; a nitro group; a cyano group; a methyl group, an ethyl group, an i-butyl group, and a t- A halogen atom such as a butyl group, an n-butyl group, an n-hexyl group, a cyclohexyl group, a benzyl group, a phenethyl group, or a trifluoromethyl group, or an aryl group which may be substituted with 1 to 10 carbon atoms An aryl group having 6 to 10 carbon atoms such as a phenyl group and a tolyl group; a heteroaryl group having 4 to 8 carbon atoms such as a pyridyl group and a phenyl group; a methoxy group, an halogen atom such as
- R 5 to R 12 are an alkylene group having about 2 to 5 carbon atoms such as one (CH 2 ) 3 — or — (CH 2 ) 4 — in which two adjacent substituents are united; —Alkylenedioxy groups having about 1 to 4 carbon atoms, such as —OCH 20 — or 1 O (CH 2 ) 20 —, may be formed.
- X 1 ⁇ 1 ⁇ hydrogen atom; a hydroxyl group; a nitro group; Shiano group; fluorine atom, a chlorine atom, a halogen atom such as a bromine atom a methyl group, Echiru group, a propyl group, i- propyl group, Carbon which may be substituted with a halogen atom or aryl group such as i-butyl, t-butyl, n-butyl, n-pentyl, trifluoromethyl, trifluoromethyl, benzyl and phenethyl.
- Alkyl group having 1 to 10 carbon atoms phenyl group; methoxy group, ethoxy group, propoxy group, i-propoxy group, t-butoxy group, n-butoxy group, etc. having 1 to 6 carbon atoms; phenoxy group, methylphenoxy group And an aryloxy group having 6 to 10 carbon atoms which may be substituted with an alkyl group.
- a halogen atom a nitro group, Shiano group, a haloalkyl group, Haroaru Kokishi group, electron withdrawing group such as halo aryl O alkoxy group or, include hydrogen atom, in the X 1 to X 1Q, At least one is not a hydrogen atom.
- at least one of X 1 -X 10 is preferably a fluorine atom, a chlorine atom or a cyano group, and the rest are preferably hydrogen atoms.
- M 3 represents, represents a metal element, preferably N and P d, P t, Co, F e, T i, S n or Cu, and more preferably Ni,? (1 or 2 and particularly preferably Ni.
- Preferred specific examples of the dye represented by the general formula (6) include those represented by the following structural formula.
- the RS can use the same groups as described in R 12, these preferably a halogen atom, an alkyl group or a substituted may be substituted
- An alkoxy group which may be
- R 13 to R 16 are each independently an alkyl group which may be substituted or a aryl group which may be substituted, and the substituent of the alkyl group and the aryl group may be , An alkyl group, an aryl group or a heteroaryl group.
- R 13 to R 16 include a methyl group, an ethyl group, a propyl group, an i-propyl group, an i-butyl group, a t-butyl group, an n-butyl group, an n-hexyl group, and a cyclohexyl group.
- An alkyl group having 1 to 6 carbon atoms such as a xyl group; an octaalkyl group such as a trichloromethyl group and a trifluoromethyl group; a phenyl group; an aralkyl group such as a benzyl group and a phenethyl group. .
- y is a nitrogen atom or a phosphorus atom.
- M 4 may be the same as described above M 3.
- Preferred specific examples of the dye represented by the general formula (7) include those represented by the following structural formulas.
- yi y 4 are each independently a single bond, an oxygen atom, a sulfur atom or an optionally substituted imino group
- Ji 1. 4 is a hydrogen atom, an alkyl group which may be substituted, an aryl group which may be substituted, a heteroaryl group or a cyano group which may be substituted, and preferably may be substituted An aryl group or an optionally substituted heteroaryl group.
- Examples of the imino group which may be substituted include an imino group, a methylimino group, and an ethylimino group. And an imino group which may be substituted with an alkyl group such as a phenyl group or a phenylimino group or an aryl group. Of these, an imino group which may be substituted with an alkyl group is preferred.
- Preferred specific examples of the above c to 4 include methyl, ethyl, propyl, i-propyl, i-butyl, t-butyl, n-butyl, n-hexyl and cyclohexyl.
- An alkyl group having 1 to 10 carbon atoms which may be substituted with a halogen atom or aryl group such as a xyl group, a benzyl group, a phenethyl group, a trichloromethyl group, and a trifluoromethyl group; a phenyl group, a tolyl group, and a methyl group C 6 to C 15 which may be substituted with a substituent selected from the group consisting of halogen, alkyl, alkoxy and aryloxy such as phenyl, cyanophenyl, methoxyphenyl and phenoxyphenyl. And more preferably an aryl group having 6 to 15 carbon atoms.
- a halogen atom or aryl group such as a xyl group, a benzyl group, a phenethyl group, a trichloromethyl group, and a trifluoromethyl group
- substituents of Ariru group ⁇ Pi Heteroariru group of the c 4 is the 5 ⁇ :!? Communicating two substituents adjacent in the same manner as described in 12, such as an alkylene group Ya alkylenedioxy O alkoxy group They may be connected via a linking group.
- M 5 may be the same as described above M 3.
- the compound represented by the general formula (8) may form a salt with + yR 13 R 14 R 15 R 16 in the general formula (7). Desirable y and R 13 to R 16 are the same as those in the general formula (7).
- Preferred specific examples of the dye represented by the general formula (8) include a compound represented by the following structural formula.
- cd 16 represents an optional substituent and is not particularly limited as long as the basic performance of the compound of the present invention is not impaired.
- the optional substituent for example, an alkyl group, 7 aralkyl Group, alkoxy group, aryloxy group, alkylthio group, arylthio group, amino group, acyl group, acylamino group, ureido group, sulfonamide group, carbamoyl group, sulfamoyl group, sulfamoylamino group, alkoxycarbonyl group, Aryloxy force Ruponyl group, alkylsulfonyl group, arylsulfonyl group, haloalkylsulfonyl group, haloalkoxy group, haloaryloxy group, imido group, halogen atom, nitro group, haloalkyl group, haloara
- an alkyl group having about 1 to 6 carbon atoms such as a methyl group and an ethyl group
- an alkoxy group having about 1 to 6 carbon atoms such as an ethoxy group and a propoxy group
- a 6 carbon atom such as a phenoxy group and a naphthoxy group.
- aryloxy groups alkylthio groups having about 1 to 6 carbon atoms such as methylthio groups and ethylthio groups; arylthio groups having about 6 to 20 carbon atoms such as phenylthio groups; A substituted amino group having about 1 to 6 carbon atoms, such as a trifluoromethylamino group; an acyl group having about 2 to 20 carbon atoms, such as an acetyl group or a piperoyl group; a carbon number such as an acetylamino group or a propionylamino group; Approximately 2 to 20 aminoyl groups such as 3-methylperido group Perido group having 2 to 20 carbon atoms; sulfone having 1 to 20 carbon atoms such as methanesulfonamide group and benzenesulfonamide group Amide group; dimethylcarbamoyl group, ethylcarbamoyl group, etc., having about 1 to 20 carbon atom
- the aryl group which may have a substituent includes, for example, an aryl group having about 6 to 20 carbon atoms such as a phenyl group, a naphthyl group, an anthryl group, a phenanthryl group, a pyrenyl group, and a fluorenyl group. And preferably an aryl group having 6 to 15 carbon atoms. These aryl groups may be substituted, and the total carbon number of the substituted aryl group is about 6 to 30, preferably about 6 to 20.
- M 6 in the general formula (9) is not particularly limited as long as it is an element capable of forming a complex with the phthalocyanine skeleton, and preferably includes a copper atom, a vanadium oxy group, or a tin chloride group.
- R 17 to R 24 each independently represent an alkyl group which may have a substituent, an aryl group which may have a substituent, or a group which may have a substituent. It represents a good heteroaryl group, wherein R 17 to R 24 may be two adjacent substituents connected to each other via a linking group.
- R 17 to R 24 specifically, R 1 and R 2 of the general formula (1) Groups similar to those mentioned in the description are chosen.
- R 17 to R 24 are the same as those described above for R 5 to R 12 , in which two adjacent substituents are an alkylene group having about 2 to 5 carbon atoms or an alkyl group having about 1 to 5 carbon atoms. They may be connected via a linking group such as a rangeoxy group.
- X represents an anion, specifically, fluorine anion, chlorine anion, bromine anion, iodine anion, perchlorate anion, hexafluoroantimonate ion, anion nitrate, hexafluorophosphate anion And a monovalent anion represented by tetrafluoroboron anion.
- preferred specific examples include JP-A-10-18092, JP-A-11-170700, JP-A-2000-80071, and JP-A-2000-81511.
- dyes such as those commercially available as “kay asorb 1 0022” and “aya sorb IRG023” manufactured by Nippon Kayaku Co., Ltd., and JP-A-2001-174626.
- Dyes commercially available as "CIR1080", "CI R1081”, “CI R1083”, “CI R1085", "CIR 1085 F", "CIR 1086” and “CIR 1125” manufactured by Nippon Carlit Co., Ltd. Is preferred.
- the compounds represented by the above general formulas (6) to (8) have a ligand portion having a molecular weight of usually 800 or less, preferably 500 or less.
- the molar extinction coefficient of the compound represented by any of the general formulas (6) to (8) is usually 5,000 or more, preferably 8,000 or more.
- the phthalocyanine compound represented by the general formula (9) has a molecular weight of 900 to 3000, and preferably 1000 to 2500.
- the molar extinction coefficient of the compound represented by the general formula (9) is usually at least 5,000, preferably at least 8,000.
- the diimmonium compound represented by the general formula (10) has a molecular weight of 600 to 3000, and preferably 900 to 2100.
- the compound represented by the general formula (10) has a molar extinction coefficient of usually 70,000 or more, preferably 90,000 or more.
- ether solvents such as tetrahydrofuran and dimethoxetane of the compounds represented by the above general formulas (6) to (10); ketone solvents such as methyl ethyl ketone; or aromatic hydrocarbons such as toluene
- ketone solvents such as methyl ethyl ketone
- aromatic hydrocarbons such as toluene
- the compound (6) can be synthesized by the method described in JP-A-2001-89492, and the compound (7) is described in J. Am. Chem. Soc., Vol. 88, p. 43 and p. 4870 ( Compound (8) can be synthesized by the method described in J. Am. Chem. Soc., Vol. 87, p. 1483 (1965), and compound (9) can be synthesized by the method described in J. Am. Compound (10) can be synthesized by the method described in JP-A-61-246391.
- the optical filter of the present application has a maximum absorption around 750 to 950 nm by using at least one compound selected from the group of compounds represented by the general formulas (1) to (5),
- the average transmittance in that range is usually 50% or less, preferably 40% or less, more preferably 30% or less, and particularly preferably 20% or less.
- the light transmittance of this portion is preferably 20% or less, and more preferably 15% or less. More preferred.
- the optical filter of the present invention comprises a substrate and a near-infrared absorbing layer containing only at least one compound selected from the group of compounds represented by the above general formulas (1) to (5) as a near-infrared absorbing dye.
- the average transmittance of 430 to 650 nm is 70% or more, preferably 80% or more, more preferably 85% or more, and particularly the average transmittance at 400 to 450 nm is 80% or more, and more preferably 83% or more. It is particularly preferably at least 85%.
- the average transmittance at 430 to 650 nm is 60% or more, preferably 70% or more, more preferably It is preferably at least 75%, in particular, the average transmittance at 400 to 450 nm is at least 60%, more preferably at least 65%, further preferably at least 68%, particularly preferably at least 70%.
- the transmittance at 550 to 600 nm is 60% or more, preferably 70% or more, and more preferably 75% or more. It is also possible to secure the brightness of the screen.
- the optical filter of the present invention also has excellent heat resistance, and does not show a new peak in the visible light region after a 500-hour heat test in an 8 Ot: constant temperature bath. .
- the residual ratio of the dye in the heat resistance test be 60% or more, more preferably 70% or more, further preferably 80% or more, and particularly preferably 85% or more.
- the dye residual ratio is determined from the degree of decrease in absorption intensity before and after the test in the region of 750 to 1100 nm.
- the optical filter of the present invention also has an excellent dye remaining rate after a 280-hour light fastness test using a xenon lamp with a UV cut filter manufactured by Fuji Film Co., Ltd.
- the dye residual ratio is 70% or more, more preferably 80% or more, and further preferably 90% or more.
- the method for producing the optical film of the present invention includes a method of coating a coating liquid containing a near-infrared absorbing dye on a transparent substrate, and melting and mixing the near-infrared absorbing dye with a binder resin to form a film.
- a method of coating with a coating solution is preferable in order to reduce the load on the near-infrared absorbing dye.
- the transparent substrate constituting the optical filter of the present invention is not particularly limited as long as it is a substrate that is substantially transparent and does not have large absorption and scattering.
- Specific examples include glass, Polyolefin resin, amorphous polyolefin resin, polyester resin, polycarbonate resin, poly (meth) acrylate resin, polystyrene, polyvinyl chloride, polyvinyl acetate, polyarylate resin, polyether sulfone resin, etc. No. Among these, amorphous polyolefin resin, polyester resin, polycarbonate resin, poly (meth) acrylate resin, polyarylate resin, and polyether sulfone resin are particularly preferable.
- These resins are compounded with known additives such as antioxidants such as phenol and phosphorous, flame retardants such as octogen and phosphoric acid, heat aging inhibitors, ultraviolet absorbers, lubricants and antistatic agents. can do.
- antioxidants such as phenol and phosphorous
- flame retardants such as octogen and phosphoric acid
- heat aging inhibitors such as heat aging inhibitors
- ultraviolet absorbers such as lubricants and antistatic agents.
- a transparent substrate is formed by molding these resins into a film using a molding method such as injection molding, T-die molding, calender molding, compression molding, or a method of dissolving in an organic solvent and casting. Is used.
- the resin formed into a film may be stretched or unstretched. Further, films made of different materials may be laminated.
- the thickness of the transparent substrate is usually selected from the range of 10 111 to 5 111 depending on the purpose.
- the transparent substrate is subjected to a surface treatment by a conventionally known method such as a corona discharge treatment, a flame treatment, a plasma treatment, a glow discharge treatment, a roughening treatment, a chemical treatment, and a coating of an anchor coating agent or a primer. May be applied.
- a corona discharge treatment such as a corona discharge treatment, a flame treatment, a plasma treatment, a glow discharge treatment, a roughening treatment, a chemical treatment, and a coating of an anchor coating agent or a primer. May be applied.
- the coating liquid containing the near-infrared absorbing dye can be prepared by dissolving or dispersing the near-infrared absorbing dye in a solvent together with Pinda resin.
- the near-infrared absorbing dye can be prepared by dispersing the near-infrared absorbing dye into fine particles of usually 0.1 to 3 / m in a solvent together with a binder, if necessary, using a dispersant. .
- the concentration of the total solid content of the near-infrared absorbing dye, dispersant, and pinda resin dissolved or dispersed in the solvent is usually 5 to 50% by weight.
- the concentration of the metal complex with respect to the total solid content is usually 0.1 to 50% by weight, preferably 0.2 to 30% by weight, as near red absorbing dye.
- the compounds represented by the general formulas (6) to (9) are used in addition to the compounds represented by the general formulas (1) to (5), they may be present in the same layer, although they may be laminated as separate layers, the ratio of the total amount of the compounds represented by the general formulas (6) to (9) to the compounds represented by the general formulas (1) to (5) is 1: 0. 1-1: 10, preferably 1: 0.2 to 1: 5.
- the concentration of the near-infrared absorbing agent in the binder resin naturally depends on the film thickness of the near-infrared absorbing filter. It is lower than the color density.
- dispersant examples include polyvinyl butyral resin, phenoxy resin, rosin-modified phenol resin, petroleum resin, cured rosin, rosin ester, maleated rosin, and polyurethane resin.
- the amount used is usually 0 to 100% by weight, preferably 0 to 70% by weight, based on the metal complex compound.
- binder examples include polymethyl methacrylate resin, polyethylene acrylate resin, polycarbonate resin, ethylene-vinyl alcohol copolymer resin, polyester resin and the like.
- the amount of the metal complex compound to be used is from 0.01 to 20% by weight, preferably from 0.1 to 10% by weight, based on the binder.
- the solvent include halogenated aliphatic hydrocarbons such as 1,2,3-trichloropropane, tetrachloroethylene, 1,1,2,2-tetrachloroethane and 1,2-dichloroethane, methanol, and ethanol.
- a near-infrared absorbing agent other than those described above may be added to the coating liquid containing the near-infrared absorbing dye, if necessary.
- Other near-infrared absorbers include organic nitroso compounds and their metal complex salts, cyanine compounds, squarylium compounds, thiol nickel complex salt compounds, phthalocyanine compounds, naphthocyanine compounds, triallylmethane compounds, Indoor diphosphorus complex compounds, immonium compounds, diimmonium compounds, naphthoquinone compounds, anthraquinone compounds, amino compounds, amidium salt compounds, or inorganic carpump racks, indium tin oxide, Examples include antimony tin oxide, oxides, carbides, and borides of metals belonging to Groups 4A, 5A, and 6A of the Periodic Table.
- Coating of a coating solution containing a metal complex onto a transparent substrate can be performed by known methods such as dipping, flow coating, spraying, percoating, gravure coating, mouth coating, blade coating, and jair knife coating. It is carried out by a coating method.
- the layer containing the metal complex is applied so that the film thickness after drying is usually 0.1 to 30 m, preferably 0.5 to 10 m. ⁇
- the optical filter of the present invention can further improve the light fastness of the optical filter by providing an ultraviolet cut layer, by a synergistic effect with the near infrared absorbing dye.
- the ultraviolet cut layer is capable of efficiently cutting ultraviolet light having a wavelength of 400 nm or less, and is preferably capable of absorbing 70% or more of light having a wavelength of 350 nm.
- the type of the ultraviolet ray cut layer is not particularly limited, but is preferably a resin film containing an ultraviolet ray absorbent.
- UV cut film is preferred.
- organic and inorganic compounds can be used as long as the compound has a maximum absorption between 300 and 400 nm and efficiently cuts light in that region. Any of these can be used without particular limitation.
- organic UV absorbers include benzotriazole UV absorbers, benzophenone UV absorbers, salicylate UV absorbers, triadine UV absorbers, p-aminobenzoic UV absorbers, and cesic acid UV absorbers. Linear absorbers, acrylate ultraviolet absorbers, hindered amine ultraviolet absorbers, and the like.
- titanium oxide UV absorbers As inorganic UV graders, titanium oxide UV absorbers, zinc oxide UV absorbers, fine Particle-based iron oxide-based UV absorbers can be mentioned, but inorganic UV absorbers are present in the form of fine particles in the UV-cut layer, which may impair the efficiency of the optical filter. UV absorbers are preferred.
- ultraviolet absorbers examples include, for example, Tinuvin P, Tinuvin 120, 213, 234, 320, 326, 327, 328, 329, 384, 400, 571 of Ciba Geigy Co., Ltd., and Sumitomo Chemical Co., Ltd. Sumithorp 250, 300, 577, Kyodo Yakuhin Biosoap 582, 550, 591, Johoku Chemical JF-86, 79, 78, 80, Asahi Denka K.K. LA-36, LA-34, Cipro Kasei Co., Ltd. series 100, 101, 101S, 102, 103, 501, 201, 202, 612NH, Otsuka Chemical Co., Ltd. RUVA93, 30M, 30S, UPINAL 3039 of BASF Corporation.
- ultraviolet absorbers may be used alone or in combination of several types.
- fluorescent whitening agents such as Ubitex OB, OB-P of Ciba-Geigy Co., Ltd., which absorbs ultraviolet light and converts the wavelength to the visible region, can also be used.
- the optical filter of the present invention provided with an ultraviolet absorbing tank has a dye remaining rate of 80% or more, preferably 85% or more, particularly preferably 85% or more after the light resistance test by irradiating the Xe lamp for 200 hours. 90% or more, and no new absorption peak appears in the visible light region.
- the dye remaining rate is determined from the degree of decrease in absorption intensity before and after the test in the 800 to 1100 nm region.
- the optical filter 1 may be used alone, or may be used as a laminate bonded to a transparent glass or another transparent resin plate.
- optical filter obtained by the present invention can be used for a wide range of applications such as a heat ray shielding film, sunglasses, safety glasses, and a remote control light receiver in addition to a filter for a display panel.
- the optical filter of the present invention may further include an electromagnetic wave-cutting layer, an anti-reflection layer for preventing reflection of external light such as a fluorescent lamp on the surface, an anti-glare layer (non-glare layer), and a color tone, if necessary.
- a correction layer is provided, and can be used as a filter for an electronic display, more preferably for a plasma display panel.
- the average transmittance at 400 to 500 nm is usually 15% or more, preferably 20% or more, and more preferably 25% or more.
- the average transmittance at 550 to 600 nm is usually 20% or more, Preferably it is more than 30%.
- the filter for an electronic display of the present invention can usually have any configuration, manufacturing method, and the like, and is not particularly limited.
- a case where the filter is used as a plasma display panel filter will be described as a typical example.
- Electromagnetic wave cut layer As the electromagnetic wave power layer used in the filter for a plasma display panel of the present invention, a vapor deposition or sputtering method of a metal oxide or the like can be used. Normally, indium tin oxide (ITO) is common, but it is also possible to cut out light of 100 nm or more by alternately laminating a derivative layer and a metal layer on a substrate by sputtering or the like. .
- the dielectric layer is a transparent metal oxide such as indium oxide or zinc oxide, and the metal layer is generally silver or a silver-palladium alloy. Layer, about 7 layers or 11 layers.
- the optical filter of the present invention may be used as it is, or may be attached to the optical filter of the present invention after forming an electromagnetic wave cut layer by vapor deposition or sputtering on a resin film or glass.
- the anti-reflection layer used in the filter for a plasma display panel of the present invention includes metal oxides, fluorides, silicides, borides, and carbides in order to suppress surface reflection and improve the transmittance of the film. , Nitrides, sulfides, and other inorganic substances in a single layer or multiple layers by vacuum evaporation, sputtering, ion plating, ion beam assist, etc., and different refractive indices such as acrylic resin and fluorine resin There is a method of laminating a resin in a single layer or a multilayer. Further, a film which has been subjected to an anti-reflection treatment can be attached on the filter.
- the color tone correction layer used in the plasma display panel filter of the present invention is not particularly limited as long as it can cut neon orange light in the wavelength range of 590 to 600 nm emitted from the plasma display.
- Compounds such as compound, tetraazaporphyrin compound, cyanine compound, methine compound, pyromethene compound and dipyrromethene compound are contained.
- Other dyes may be added so that the display color when quenched becomes neutral gray.
- a glare prevention layer may be provided in addition to the above-described layers.
- a method of forming a fine powder of silica, melamine, acrylic, or the like into an ink and coating the surface thereof to scatter transmitted light can be used in order to widen the viewing angle of the film.
- the ink can be cured by heat or light.
- a non-rare-treated film can be stuck on the filter. If necessary, a hard coat layer may be provided.
- 3,5-diethyl tert-butyl catechol (5 g, 22.5 mmo 1) was dissolved in n-heptane (23 mL) 40 ⁇ below.
- n-heptane 23 mL
- the aminocatechol compound (0.95 g, 3.2 mmol) obtained in Production Example 1 was dissolved in acetonitrile (45 mL), and triethylamine (0.8 mL), nickel nitrate hexahydrate was added to this solution. (0.47 g, 1.60 mm o 1) was added, and the mixture was refluxed for 3 hours under air publishing. After cooling to room temperature, the product was collected by filtration. The obtained solid was washed with hot ethanol, filtered, and the target nickel aminophenolate complex was obtained as a dark green solid in 81% yield. E I MS: 648
- 3,5-Ditert-butylcatechol (5 g, 22.5 mmol) was dissolved in n-heptane (2 OmL) under 40.
- n-heptane (2 OmL)
- a mixed solution of n-hexylamine (2.3 g, 22.5 mmol) and triethylamine (0.5 mL) was added, and the mixture was refluxed for 10 hours.
- the solution was extracted with ethyl acetate, the organic layer was washed with saturated saline, and the organic layer was concentrated.
- the target product was produced by silica gel column chromatography, and the target compound, an aminocatechol compound, was obtained as a colorless oil in 71% yield.
- the aminocatechol compound (1.lg, 3.51 mmol) obtained in Production Example 3 was dissolved in acetonitrile (45 mL), and triethylamine (lmL), nickel nitrate hexahydrate (0 mL) were added to the solution. 46 g, 1.58 mmo 1) was added, and the mixture was refluxed for 1 hour under air publishing. After cooling to room temperature, the product was collected by filtration. The obtained solid is washed with hot water, washed with hot methanol, filtered, and the target nickel aminophenol complex is converted into a dark green solid.
- the target compound a nickel aminophenolate-based complex
- the target compound a nickel aminophenolate-based complex
- the target compound was obtained from 2-promo 4,5-di-tert-butylphenol and 3,5-dimethylaniline. Was obtained as a pale yellow solid with a 89% yield.
- the target aminoaminophenolate-based complex was obtained from the aminophenol compound obtained in Production Example 7 and nickel nitrate hexahydrate as a dark green solid. % Yield.
- the Ama X of this filter was 880 nm.
- Attached to this filter is a UV cut filter, Yuichi (SC-39) manufactured by Fuji Photo Film Co., Ltd., and a xenon long life feeder (FAL-25 AX-HCB-EC) (Suga Test Equipment Co., Ltd.) After irradiating for 280 hours and measuring the absorption intensity before and after irradiation at 880 nm, the dye residual ratio (intensity after irradiation ⁇ intensity before irradiation X 100) was very good at 92.9%. There was no single color change of the filter.
- the near-infrared absorbing dye represented by the formula (1) was added to 1.2375 g of THF (tetrahydrofuran), dissolved by applying ultrasonic waves, and the remaining undissolved was filtered off with a syringe filter.
- 2.5 g of a THF solution of a methyl methacrylate resin (resin concentration 30% by weight) was added, and ultrasonic waves were applied to prepare a coating solution.
- This coating solution was applied to a polyethylene terephthalate film using Barco Ichiyu (No. 12; manufactured by Eto Kiki Co., Ltd.), and dried to obtain a filter having near-infrared absorbing ability.
- a UV cut filter (SC-39) manufactured by Fuji Photo Film Co., Ltd. is attached to this filter, and a Xenon Long Life Fade Meter (FAL-25AX-HCB-EC) After measuring the absorption intensity before and after irradiation at 883 nm and 1002 nm, the dye residual ratio (intensity after irradiation ⁇ intensity before irradiation X 100) was 95.7. % (883 nm) and 88.7% (1002 nm) were good, and there was no change in the color of the filter.
- a UV cut filter (SC-39) manufactured by Fuji Photo Film Co., Ltd. is attached to this filter, and a xenon long life feeder (FAL-25 AX-HCB-EC) (product of Suga Test Machine Co., Ltd.) ),
- FAL-25 AX-HCB-EC xenon long life feeder
- the absorption intensity before and after irradiation at 883 nm and 1002 nm was measured, and the residual dye ratio (intensity after irradiation ⁇ intensity before irradiation X 100) was 95.6% (854 nm). It was good at 76.5% (1000 nm), and there was no change in fill color.
- This coating solution was applied to a polyethylene terephthalate film by Berco Ichiyu (No. l2; manufactured by Eto Kiki Co., Ltd.) and dried to obtain a transmittance curve as shown in Fig. 1.
- a film having the near-infrared absorption ability shown was obtained.
- This near-infrared absorption filter 1 had a transmittance of 20% or less at 823 nm, 889 nm, and 979 nm, and effectively shielded light emitted from the PDP body.
- the aminocatechol compound (2.99 g, 9.61 mmo1) obtained above was dissolved in acetate nitrile (125 mL), and triethylamine (3.2 mL) and nickel nitrate hexahydrate (2.5 mL) were added to this solution. 1.26 g and 4.32 mmo 1) were added, and the mixture was refluxed for 6 hours under air coupling. After cooling to room temperature, the product was collected by filtration. The obtained solid was washed with hot water, washed with hot methanol, and filtered, to obtain the target substance, a nickelaminophenolate complex, as a dark green solid in 81% yield.
- the maximum molar extinction coefficient of near-infrared light from 800 nm to 100 nm was 38,900.
- the maximum molar extinction coefficient of near-infrared light from 800 nm to 100 nm was 37,600.
- the target product a nickel aminophenolate complex
- the target nickel aminophenolate-based complex was obtained as a dark green solid in 84% yield.
- the maximum molar extinction coefficient of near-infrared light from 800 nm to 100 nm was 38,500.
- the maximum molar extinction coefficient of near-infrared light from 800 nm to 100 nm was 39,200.
- the maximum molar extinction coefficient of near-infrared light from 800 nm to 100 nm was 41,900.
- Ama X of this film was 880 nm (peak top transmittance 18%). Furthermore, in order to evaluate the heat resistance and the moist heat resistance, put them in a constant temperature bath at 80 and a constant temperature layer at 60 and 90% humidity for 500 hours. The residual pigment ratio (strength after irradiation—strength before irradiation X 100) was 99.5% and 99.9%, respectively, indicating good heat resistance and moisture heat resistance. There was no color change at Le Yuichi.
- the Ama X of this filter was 893 nm (15% transmittance).
- a UV cut filter (SC-39) manufactured by Fuji Photo Film Co., Ltd. was installed, and a Xenon Long Life Feeder One Day (FAL-25 AX-HCB-EC) (Suga Test Machine) 280 hours, and measured the absorption intensity before and after irradiation at 880 nm.
- the residual dye ratio (intensity after irradiation ⁇ intensity before irradiation X 100) was very good at 93.3%. , Phil did not change color.
- the Ama X of this filter was 880 nm (15% transmittance).
- heat resistance and moist heat resistance test (absorption intensity before and after irradiation at 880 nm) was carried out in a constant temperature bath at 80 and a constant temperature layer at 90% humidity for 60 hours. Measurement), the residual dye ratio (strength after irradiation ⁇ strength before irradiation X 100) was 99.9% and 99.9%, respectively, indicating good heat resistance and moisture heat resistance. Did not change color.
- Attached to this filter is a UV cut filter (SC-39) manufactured by Fuji Photo Film Co., Ltd., and a xenon long life feeder (FAL-25 AX-HCB-EC) (Suga Test Equipment Co., Ltd.) 280 hours, and the absorption intensity before and after irradiation at 880 nm was measured.
- the residual dye ratio (intensity after irradiation ⁇ intensity before irradiation X 100) was 99.4%, a pitfall. Always good, Phil did not change color.
- the ⁇ ax of this filter was 886 nm (18% transmittance).
- Attached to this filter is a UV Cut Filter Yuichi (SC-39) manufactured by Fuji Photo Film Co., Ltd., and a Xenon Long Life Feldome Ichiichi (FAL-25AX-HCB-EC) (Suga Test Equipment Co., Ltd.) 280 hours, and the absorption intensity before and after irradiation at 880 nm was measured.
- the residual ratio of the dye (intensity after irradiation ⁇ intensity before irradiation X 100) was very good at 0.99.4%. There was no one color change.
- Ama X of this filter was 882 nm (transmittance 11%).
- heat resistance and moist heat resistance test (absorption before and after irradiation at 880 nm) was carried out for 500 hours in an 8 O constant temperature bath and at 60% humidity in a constant temperature layer at 60%.
- the residual dye ratio (strength after irradiation—strength before irradiation X 100) was 98.7% and 98.9%, respectively, indicating good heat resistance and wet heat resistance. There was no color change of the filter.
- Ama X of this filter was 882 nm (11% transmittance).
- Reference compound 2 0.35 Reference example 2 (Comparison of transmission spectrum from 350 nm to 650 nm)
- This near-infrared absorption filter has a transmittance of 2 at 823 nm, 889 nm, and 979 nm. It was less than 0%, which effectively blocked light emission from the PDP body.
- Japanese Patent Application No. 2003-294957 (filed with the Japan Patent Office on August 18, 2003), which is the basis for claiming the priority of the present application, and Japanese Patent Application No. 2003- No. 382479 (filed with the Japan Patent Office on November 12, 2003) is incorporated herein by reference.
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Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2003294957 | 2003-08-19 | ||
JP2003-294957 | 2003-08-19 | ||
JP2003-382479 | 2003-11-12 | ||
JP2003382479 | 2003-11-12 |
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WO2005022213A1 true WO2005022213A1 (ja) | 2005-03-10 |
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PCT/JP2004/012230 WO2005022213A1 (ja) | 2003-08-19 | 2004-08-19 | 光学フィルター |
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WO (1) | WO2005022213A1 (ja) |
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CN101610893B (zh) * | 2007-01-17 | 2015-02-11 | 西巴控股有限公司 | 二硫醇烯金属配合物无色ir吸收剂 |
WO2020059509A1 (ja) * | 2018-09-20 | 2020-03-26 | 富士フイルム株式会社 | 硬化性組成物、硬化膜、赤外線透過フィルタ、積層体、固体撮像素子、センサ、及び、パターン形成方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11349920A (ja) * | 1998-06-10 | 1999-12-21 | Mitsubishi Chemical Corp | 近赤外吸収剤 |
JPH11352323A (ja) * | 1998-06-10 | 1999-12-24 | Mitsubishi Chemical Corp | 近赤外線吸収フィルター |
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JPH1035108A (ja) * | 1996-07-25 | 1998-02-10 | Ricoh Co Ltd | 光情報記録媒体 |
JP3940786B2 (ja) * | 1999-08-02 | 2007-07-04 | 三井化学株式会社 | 赤外線吸収フィルター及びプラズマディスプレイパネル用フィルター |
JP2003139946A (ja) * | 2001-11-01 | 2003-05-14 | Mitsubishi Chemicals Corp | 近赤外線吸収フィルター |
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2004
- 2004-08-19 WO PCT/JP2004/012230 patent/WO2005022213A1/ja active Application Filing
- 2004-08-19 JP JP2004239069A patent/JP2005165265A/ja active Pending
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JPH11349920A (ja) * | 1998-06-10 | 1999-12-21 | Mitsubishi Chemical Corp | 近赤外吸収剤 |
JPH11352323A (ja) * | 1998-06-10 | 1999-12-24 | Mitsubishi Chemical Corp | 近赤外線吸収フィルター |
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