JP2019164214A - Coating material - Google Patents

Abstract

To provide a coating material that directly acts on a site of occurrence of indirect light, particularly scattered light, to efficiently cut off only light of a desired specific wavelength.SOLUTION: The present invention relates to: a coating material containing a filler material dispersion that is a mixture comprising two or more materials comprising a matrix material and a filler material having a different refractive index from that of the matrix material, where the filler material has a different refractive index from that of the matrix material, and the filler material contains a specific wavelength light absorbent of 0.00001-99 wt.%; and a coating material containing a filler material that contains a specific wavelength light absorbent of 0.00001-99 wt.%.SELECTED DRAWING: None

Description

  The present invention relates to a coating material containing a filling material or a filling material dispersion that generates scattered light and cuts light of a specific wavelength included in the scattered light to generate scattered light that does not include light of the specific wavelength. About.

  Conventionally, light has been regarded as a problem of adverse effects on the eyes, and in particular, the influence of ultraviolet rays has been enormous. In addition, in recent years, natural light, liquid crystal displays for office equipment, displays for portable equipment such as smartphones and mobile phones, etc. Blue light having a wavelength of 380 to 500 nm, which is included in the light emission from, has been regarded as a problem.

  This blue light has a great influence such as feeling eye fatigue and pain, and it has been desired to reduce the amount of exposure to the eye. In particular, Non-Patent Document 1 describes the influence of short-wavelength light near 420 nm on the eye among blue lights. Blue light around 480 nm may cause sleep disturbance. Exposure of these blue lights to eyes for a long time is considered to cause eyestrain and stress, and further cause age-related macular degeneration. In recent years, measures to reduce exposure using blue light cut glasses have been taken as countermeasures against these problems.

Patent Document 1 proposes a polymer material containing an ultraviolet absorber having a maximum absorption wavelength at 370 to 390 nm, which can also absorb a long wavelength in the blue light region.
On the other hand, it has also been desired to provide a material that reduces light in the vicinity of 550 to 600 nm for the purpose of reducing glare and making an object appear clearer.

Patent Document 2 describes that the red color of an object can be made more vivid by limiting the wavelength light region of 580 to 590 nm at which a person feels dazzling.
Furthermore, there is an increasing demand for materials that cut the infrared region for the purpose of protecting privacy from sunglasses or cameras as an optical filter or from night vision cameras.

  Patent Document 3 discloses a high-contrast material that substantially cuts the near-infrared region (ANSI, 780 to 1400 nm transmittance 5.8%) while ensuring the transmittance in the visible light region (luminous transmittance 42%). Proposed.

International Publication No. 2009/123153 JP 2008-185637 A International Publication No. 2015/118964

The European journal of neuroscience, vol.34, Iss.4, 548-58, (2011)

  The light exposed to the eyes in daily life includes light emitted from the display (scattered light from the light guide plate backlight) or reflected light from the building exterior, etc., in addition to direct light such as sunlight. The amount of exposure is not small. In many cases, paint is applied to the building outer wall or the like, and the influence of the light reflected on the applied paint on the eyes is great. For this reason, there is a great need to protect the eyes from the reflected light from the paint.

  None of the proposals in the above prior art are proposals for controlling scattered light and reflected light (scattered light and reflected light are collectively referred to as “indirect light” hereinafter) from the source, but on incident light. This is a proposal of a technique intended to treat (specific wavelength light cut). In other words, it was difficult to say that the proposal can control indirect light itself.

  The present invention works directly on the generated portion of the indirect light, particularly with respect to the scattered light, and effectively cuts only the light of the desired specific wavelength, so that ideally without wearing troublesome glasses or It is an object of the present invention to provide a technique for enabling a safe and suitable life without installing an optical filter (wavelength cut filter) or the like that complicates the apparatus.

  The present inventors have applied a coating material dispersion or a filling material itself obtained by dispersing a filling material to which an additive that absorbs light of a specific wavelength is added to a transparent material having a refractive index different from that of the filling material. It has been found that the above problems can be solved by using as a material.

The present invention includes the matters described in [1] to [6] below.
[1]
A coating material comprising a filler material dispersion comprising a matrix material and a filler material dispersed in the matrix material,
The matrix material has a visible light transmittance of 400 to 800 nm of 10% or more,
The filler material has a refractive index different from that of the matrix material, and includes a main material and a specific wavelength light absorber,
The coating material in which the said specific wavelength light absorber is contained in the said filling material in 0.00001-99 mass%.
[2]
The coating material according to [1], wherein one or both of the matrix material and the main material of the filling material is a resin material.
[3]
The said matrix material is a coating material as described in said [1] or [2] containing a specific wavelength light absorber.
[4]
A coating material containing a filler material, wherein the filler material includes a main material and a specific wavelength light absorber, and the specific wavelength light absorber is included in the filler material in a range of 0.00001 to 99% by mass. Paint material.
[5]
The coating material according to any one of [1] to [4], wherein a particle diameter of the filling material is in a range of 0.01 to 10,000 μm.
[6]
The coating material according to any one of [1] to [5], wherein the specific wavelength light absorber is at least one selected from an ultraviolet absorber, a visible light absorber, and an infrared absorber.

  When the filler material dispersion used in the coating material of the present invention is irradiated with radiation, scattered light is generated. Of the scattered light, a specific wavelength is absorbed by the filler material containing a specific wavelength light absorber capable of absorbing a desired wavelength. Scattered light in which the light is cut and the light of the specific wavelength is cut can be easily obtained. Surprisingly, the use of a filling material with a specific wavelength light absorber makes it possible to extract light of a specific wavelength from scattered light much more efficiently than when a specific wavelength light absorber is simply added to the matrix material. Can be cut.

  When the coating material of the present invention contains the above-mentioned filling material or filling material dispersion, when applied to an architectural outer wall or the like, it cuts blue light or the like harmful to eyes from the reflected light from the architectural outer wall or the like. It helps to reduce eye fatigue and pain.

FIG. 1 is a graph showing the particle size distribution of the filler obtained in Production Example 1-2. FIG. 2 is a diagram showing the scattered light intensity of the filler dispersions obtained in Examples and Comparative Examples. FIG. 3 is a diagram showing the particle size distribution of the filler material obtained in Comparative Production Example 1-2.

  In the present invention, the filling material dispersion means a filling material to which an additive that absorbs light of a specific wavelength (hereinafter referred to as a “specific wavelength light absorber”) is added. It is a dispersion of filler material obtained by dispersing in a material (hereinafter referred to as “matrix material”).

  The coating material of the present invention is characterized in that it contains a filling material or a filling material dispersion. The filler material dispersion is a filler material dispersion including a matrix material and a filler material dispersed in the matrix material, and the matrix material is preferably a transparent material, and has a visible light of 400 to 800 nm. It is desirable that the transmittance is 10% or more. The filler material has a refractive index different from that of the matrix material, and includes a main material and a specific wavelength light absorber, and the specific wavelength light absorber is in the range of 0.00001 to 99% by weight in the filler material. Included.

Hereinafter, embodiments of the present invention will be specifically described.
The filler material dispersion is generally produced by the following method.
First, a specific wavelength light absorber capable of absorbing light in a wavelength region to be cut is added to a main material which is a material on which a filling material is based, and then molded to obtain a molded product. Next, the filler is obtained by pulverizing the molded product to obtain a filler material having a refractive index different from that of the matrix material, and mixing and dispersing the obtained filler material in a transparent matrix material. A dispersion is obtained.

[Matrix material]
The matrix material needs to have transparency and a difference in refractive index from the filling material in order to disperse the filling material and generate scattered light.
The transparency required for the matrix material should be about 10% or more in terms of the transmittance of visible light having a wavelength of 400 to 800 nm, preferably 30% or more, more preferably 50%, and even more preferably 80% or more. Most preferably, it is 90% or more.

In general, a paint is composed of a paint resin, a pigment such as a pigment, an additive, and a solvent.
The coating material of the present invention is a material added to the coating material and includes at least a filling material and / or a filling material dispersion. Therefore, the required refractive index difference between the paint and the filler or filler dispersion is preferably in the range of 0.0001 to 2.0, more preferably in the range of 0.001 to 1.7, and 0.01 to A range of 1.5 is more preferable.

Similarly, the difference in refractive index between the matrix material for the filler dispersion and the above-described filler material, which is also required, is preferably in the range of 0.0001 to 2.0, more preferably in the range of 0.001 to 1.7. The range of 0.01 to 1.5 is more preferable.
The matrix material used may also be used as a resin for paints, and may be organic, inorganic, or a mixed material as long as the above transmittance and refractive index difference are satisfied. Matrix materials are preferably used.

  The organic matrix material is a material composed of oxygen, hydrogen, nitrogen atoms, sulfur atoms, etc. with carbon as a main element, and examples thereof include resins. The resin may be a thermoplastic resin or a three-dimensional crosslinked resin made of a thermosetting resin.

  Specific examples of the resin used for the organic matrix material include, for example, a compound having two or more hydroxyl groups and / or a compound having two or more mercapto groups and two or more isocyanato groups and / or isothiocyanato groups. Poly (thio) urethane resin obtained by reacting with compound, compound having epoxy group and / or poly (thio) epoxy resin obtained by polymerizing compound having thioepoxy group, compound having oxetanyl group and / or thietanyl A poly (thio) oxetanyl resin obtained by polymerizing a compound having a group, a compound having an acryloyl group and / or an acrylic resin obtained by polymerizing a (meth) acryloyl compound having a methacryloyl group, a compound having an allyl carbonate group Get together Polyallyl carbonate resin, polyene polythiol resin obtained by reacting a compound having an acryloyl group or methacryloyl group with a compound having two or more mercapto groups, a compound having a hydroxy group and a carboxyl group (including an alkyl ester group) A polyester resin obtained by reacting a compound having two or more hydroxyl groups with a compound having two or more carboxyl groups (including alkyl ester groups) or a compound having one or more anhydrous carboxyl groups Resins, polyglycolic acid resins, polylactic acid resins, etc.), polyacetylcellulose resins obtained by casting acetate, which is a natural polymer, and esterification, polyamino acid resins obtained by condensation polymerization of amino acid compounds, amino Compound having a group Polyamide resin obtained by condensation polymerization of a compound having two or more carboxyl groups (including alkyl ester groups) or a compound having one or more anhydrous carboxyl groups, a compound having an amino group and two or more anhydrous carboxyl groups Polyimide resin obtained by ring-opening condensation polymerization of a compound, polyether ether sulfone resin obtained by condensation polymerization of bis (hydroxyaryl) sulfone and bis (nitroaryl) ether, polystyrene obtained by polymerizing styrene Examples thereof include DAP resins obtained by polymerizing resins, diallyl phthalates, polyolefin resins obtained by polymerizing olefins and / or cycloolefin compounds, polycarbonate resins, and mixed resins thereof.

Examples of the compound having two or more hydroxyl groups and the compound having two or more mercapto groups have two or more functional hydroxyl groups such as ethylene glycol, polyethylene glycol, propylene glycol, polypropylene glycol, glycerin, polyglycerin, and thioglycerin. Compound,
Trithioglycerin, pentaerythritol tetrakis (thioglycolate), trimethylolpropane (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropionate), dipentaerythritol hexa (3-mercaptopropionate), Bis (2-mercaptoethyl) sulfide, 4-mercaptomethyl-3,6-dithiaoctane-1,8-dithiol, 4,8-bis (mercaptomethyl) -3,6,9-trithiaundecane-1,11- Dithiol, 4,7-bis (mercaptomethyl) -3,6,9-trithiaundecane-1,11-dithiol, 5,7-bis (mercaptomethyl) -3,6,9-trithiaundecane-1, 11-dithiol, 1,1,3,3-tetrakis (mercaptomethi ) -2-thiapropane, 1,4-dithian-2,5-dithiol, 2,5-bis (mercaptomethyl) -1,4-dithiane, xylylene thiol, and other compounds having two or more mercapto groups. .

  Examples of the compound having two or more isocyanato groups and / or isothiocyanato groups used in the synthesis of the poly (thio) urethane resin include pentamethylene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, bis (isocyanatomethyl). Cyclohexane, bis (isocyanatomethyl) norbornane, bis (isocyanatocyclohexyl) methane, bis (isocyanatomethylthio) methane, bis (isocyanatomethyl) disulfide, dithiolane diisocyanate, isophorone diisothiocyanate, bis (isothiocyanatomethyl) cyclohexane , Bis (isothiocyanatomethyl) norbornane, bis (isothiocyanatocyclohexyl) methane, tris (isocyanatopentyl) i Cyanurate, tris (isocyanatohexyl) isocyanurate.

  Examples of the compound having an epoxy and the compound having a thioepoxy group used for the synthesis of the poly (thio) epoxy resin include bisphenol A diglycidyl ether, tetrabromobisphenol A diglycidyl ether, hydrogenated bisphenol A diglycidyl ether, Bisphenol F diglycidyl ether, neopentyl glycol diglycidyl ether, trimethylolpropane diglycidyl ether, hexahydrophthalic anhydride diglycidyl ester, 3,4-epoxycyclohexylmethyl-3 ', 4'-epoxycyclohexanecarboxylate, diglycidyl ether , Diglycidyl sulfide, diglycidyl disulfide, dithioglucidyl sulfide, dithioglucidyl disulfide and the like.

  Examples of the compound having an oxetanyl group and the compound having a thietanyl group used in the synthesis of the poly (thio) oxetanyl resin include 3-ethyl-3-hydroxymethyloxetane, 1,4-bis {[(3-ethyl -3-oxetanyl) methoxy] methyl} benzene, 3-ethyl-3- (phenoxymethyl) oxetane, di [1-ethyl- (3-oxetanyl)] methyl ether, 3-ethyl-3- (2-ethylhexyloxy) A compound having an oxetanyl group such as methyl) oxetane or phenol novolak oxetane, such as 1- {4- (6-mercaptomethylthio) -1,3-dithianylthio} -3- {2- (1,3-dithietanyl)} methyl -7,9-bis (mercaptomethylthio) -2,4,6,10-tetrathiaounde 1,5-bis {4- (6-mercaptomethylthio) -1,3-dithianylthio} -3- {2- (1,3-dithietanyl)} methyl-2,4-dithiapentane, 4,6-bis [3- {2- (1,3-dithietanyl)} methyl-5-mercapto-2,4-dithiapentylthio] -1,3-dithiane, 3- {2- (1,3-dithietanyl)} methyl -7,9-bis (mercaptomethylthio) -1,11-dimercapto-2,4,6,10-tetrathiaundecane, 9- {2- (1,3-dithietanyl)} methyl-3,5,13, 15-tetrakis (mercaptomethylthio) -1,17-dimercapto-2,6,8,10,12,16-hexathiaheptadecane, 3- {2- (1,3-dithietanyl)} methyl-7,9, 13,15-tetraki (Mercaptomethylthio) -1,17-dimercapto-2,4,6,10,12,16-hexathiaheptadecane, 3,7-bis {2- (1,3-dithietanyl)} methyl-1,9- Dimercapto-2,4,6,8-tetrathianonane, 4,5-bis [1- {2- (1,3-dithietanyl)}-3-mercapto-2-thiapropylthio] -1,3-dithiolane , 4- [1- {2- (1,3-dithietanyl)}-3-mercapto-2-thiapropylthio] -5- {1,2-bis (mercaptomethylthio) -4-mercapto-3-thiabutylthio} -1,3-dithiolane, 4- {4- (5-mercaptomethylthio-1,3-dithiolanyl) thio} -5- [1- {2- (1,3-dithietanyl)}-3-mercapto-2- Thiapropylthio] -1, Examples thereof include compounds having a thietanyl group such as 3-dithiolane.

Examples of the compound having an acryloyl group and the (meth) acryloyl compound having a methacryloyl group used for the synthesis of the acrylic resin include methyl (meth) acrylate, butyl (meth) acrylate, cyclohexyl (meth) acrylate, and phenyl (meth) ) Acrylate, benzyl (meth) acrylate, hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate, diethylene glycol mono (meth) acrylate, triethylene glycol mono (meth) acrylate, tetraethylene Monofunctional (such as glycol mono (meth) acrylate, N- (meth) acryloylpyrrolidone, N- (meth) acryloylimidazole, N- (meth) acryloylcaprolactone) Data) acryloyl compound,
For example, hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, or urethane (meth) acrylate obtained by reacting hydroxybutyl (meth) acrylate with phenyl isocyanate; hydroxyethyl (meth) acrylate, hydroxypropyl ( Urethane (meth) acrylate obtained by reacting meth) acrylate or hydroxybutyl (meth) acrylate with benzyl isocyanate; hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, or hydroxybutyl (meth) acrylate Monofunctional urethane (meth) acryloyl compounds such as urethane (meth) acrylate obtained by reaction with cyclohexyl isocyanate;
For example, ethylene glycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, cyclohexanedimethanol di (Meth) acrylate, alkoxylated hexanediol di (meth) acrylate, neopentyl glycol di (meth) acrylate, caprolactone modified neopentyl glycol hydroxypivalate di (meth) acrylate, cyclohexane dimethanol di (meth) acrylate, diethylene glycol di ( (Meth) acrylate, dipropylene glycol di (meth) acrylate, bisphenol A di (meth) acrylate, ethoxylated bisphenol A di (meth) acrylate, 4,4 ′ -Bis (4- (meth) acryloyloxy-3-hydroxy-1-oxabutyl) bisphenol A, 4,4'-bis (4- (meth) acryloyloxy-3-hydroxy-1-oxabutyl) -dicyclohexyl-2, 2-propane, hydroxypivalaraldehyde modified trimethylolpropane di (meth) acrylate, neopentyl glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, propoxylated neopentyl glycol di (meth) acrylate, tetraethylene glycol di (Meth) acrylate, tricyclodecane dimethanol di (meth) acrylate, triethylene glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, glycerol tri (meth) acrylate Ethoxylated trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, propoxylated glyceryl tri (meth) acrylate, propoxylated trimethylolpropane tri (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, Dipentaerythritol penta (meth) acrylate, ethoxylated pentaerythritol tetra (meth) acrylate, pentaerythritol tetra (meth) acrylate, caprolactone modified dipentaerythritol hexa (meth) acrylate, N, N'-di (meth) acryloylethylene Urea, N, N ′, N′-tri (meth) acryloyl isocyanurate, 1,2-bis {(meth) acryloylthio} ethane, 1,5-bis {(meth) a Bifunctional or higher poly (meth) acryloyl compounds such as acryloylthio} -3-thiapentane;
For example, urethane (meth) acrylate obtained by reacting 2-hydroxyethyl (meth) acrylate and the polyiso (thio) cyanate compound, 2-hydroxypropyl (meth) acrylate and the polyiso (thio) cyanate compound Urethane (meth) acrylate, 4-hydroxybutyl (meth) acrylate obtained by reaction of urethane (meth) acrylate, 3-hydroxypropyl (meth) acrylate and polyiso (thio) cyanate compound obtained by reaction And the above polyiso (thio) cyanate compound react with urethane (meth) acrylate, glycerin-2-hydroxy-1,3-di (meth) acrylate and the above polyiso (thio) cyanate compound. Obtained urethane (meta) accelerator The urethane (meth) acrylate obtained by the reaction of pentaerythritol tri (meth) acrylate and the polyiso (thio) cyanate compound, dipentaerythritol penta (meth) acrylate and the polyiso (thio) cyanate compound react. And bifunctional or more urethane (meth) acryloyl compounds such as urethane (meth) acrylate obtained in the above.

  Examples of the compound having an allyl carbonate group used for the synthesis of the polyallyl carbonate resin include ethylene glycol diallyl carbonate, diethylene glycol diallyl carbonate, triethylene glycol diallyl carbonate, tetraethylene glycol diallyl carbonate, propylene glycol diallyl carbonate, and dipropylene. Examples include glycol diallyl carbonate, butylene glycol diallyl carbonate, and xylylene diol diallyl carbonate.

  Examples of the compound having two or more hydroxyl groups used for the synthesis of the above polyester resins (PET resin, polyglycolic acid resin, polylactic acid resin, etc.) include ethylene glycol, polyethylene glycol, 1,2-propylene glycol, 1, 2-polypropylene glycol, 1,3-propylene glycol, 1,3-polypropylene glycol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 1,6 Examples thereof include compounds having two or more functional hydroxyl groups such as hexanediol, 1,8-octanediol, 1,9-nonanediol, and 1,10-decanediol.

  Examples of the compound having a hydroxy group and a carboxyl group (including an alkyl ester group) used for the synthesis of the polyester resin (PET resin, polyglycolic acid resin, polylactic acid resin, etc.) include glycolic acid, lactic acid, hydroxy Examples include benzoic acid.

  A compound having two or more carboxyl groups (including alkyl ester groups) or one or more anhydrous carboxyl groups used in the synthesis of the above polyester resins (PET resins, polyglycolic acid resins, polylactic acid resins, etc.) and polyamide resins Examples of the compound include phthalic anhydride, phthalic acid, dimethyl phthalate, diethyl phthalate, maleic anhydride, maleic acid, dimethyl maleate, diethyl maleate, malonic anhydride, malonic acid, dimethyl malonic acid, itaconic anhydride , Itaconic acid, dimethyl itaconate, succinic anhydride, succinic acid, dimethyl succinate, trimellitic acid and the like.

  Examples of the amino acid compound used for the synthesis of the polyamino acid resin include glycine, alanine, valine, leucine, isoleucine, asparagine, glutamine, aspartic acid, glutamic acid, lysine, arginine, phenylalanine, tyrosine, cysteine, cystine, methionine, Serine, threonine, histidine, tryptophan, proline and the like.

  Examples of the compound having an amino group used for the synthesis of the above polyamide resin and polyimide resin include cyclohexylamine, benzylamine, xylylenediamine, α, α, α ′, α′-tetramethyl-xylylenediamine, , 5-diaminopentane, 1,6-diaminohexane, diaminopolypropylene, diaminopolyethylene, isophoronediamine, bis (aminocyclohexyl) methane, bis (aminomethyl) cyclohexane, bis (aminomethyl) norbornane and the like.

Examples of the compound having two or more anhydride carboxyl groups used for the synthesis of the polyimide resin include pyromellitic anhydride.
Examples of the bis (hydroxyaryl) sulfone used for the synthesis of the polyetherethersulfone resin include bisphenol S, bis (3-hydroxyphenyl) sulfone, bis (2-hydroxyphenyl) sulfone, and the like. Examples of the aryl) ether include bis (4-nitrophenyl) ether, bis (3-nitrophenyl) ether, bis (2-nitrophenyl) ether, and the like.

  Examples of the olefin compound used in the polyolefin resin include ethylene, propylene, 2-butyne, 2-pentyne, 4-methylpentene, 2-hexyne, 3-hexyne, 2-heptin, 3-heptin, 2-octyne, 3-octyne, 4-octyne, diisopropylacetylene, 2-nonine, 3-nonine, 4-nonine, 5-nonine, 2-decyne, 3-decyne, 4-decyne, 5-decyne, di-tert-butylacetylene, Diphenylacetylene, dibenzylacetylene, methyl-iso-propylacetylene, methyl-tert-butylacetylene, ethyl-iso-propylacetylene, ethyl-tert-butylacetylene, n-propyl-iso-propylacetylene, n-propyl-tert- Butyl acetylene, phenyl Chill acetylene, phenyl ethyl acetylene, phenyl -n- propyl acetylene, phenyl -iso- propyl acetylene, phenyl -n- butyl acetylene, and phenyl -tert- butyl acetylene and the like.

Examples of the cycloolefin compound used for the polyolefin resin include dicyclopentene and tricyclopentene.
An inorganic matrix material can also be used instead of the organic matrix material. An inorganic matrix material represents a material whose main component is composed of an inorganic nonmetallic substance. Since higher transparency is preferable, among inorganic matrix materials, materials that can be cured and molded at a low temperature by a sol-gel reaction and glass-based materials are preferably used. When considering the suppression of the decomposition of the specific wavelength light absorber, a material that can be cured and molded at a low temperature by a sol-gel reaction is more preferably used, which can be obtained by condensation polymerization of a metal alkoxylate compound and a metal hydroxide compound.

  As a raw material of the inorganic matrix material, a compound having one or more alkoxysilyl groups in one molecule, a metal alkoxylate compound, and a metal hydroxide compound obtained by hydrolyzing them are preferably used. Tetraethoxytitanium, tetrapropoxytitanium, tetrabutoxytitanium, tetraethoxyantimony, tetramethoxysilane, tetraethoxysilane (hereinafter abbreviated as “TEOS”), tetrapropoxysilane, tetrabutoxysilane, methyltrimethoxysilane, dimethyldiethoxy Silane, phenyltriethoxysilane, hexyltrimethoxysilane, decyltrimethoxysilane, mercaptopropyltrimethoxysilane, mercaptopropylmethyldimethoxysilane, bis (triethoxysilane Rupropyl) tetrasulfide, vinyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, glycidoxypropyltrimethoxysilane, 4-styryltrimethoxysilane, aminopropyltrimethoxysilane, (meth) acryloyl Examples thereof include oxypropyltrimethoxysilane and (meth) acryloyloxypropyltriethoxysilane.

  As for the mixed material of the organic matrix material and the inorganic matrix material, basically, the respective materials may be mixed and cured, and among them, the above matrix resin and the metal alkoxylate compound and / or the metal hydroxide compound are included. A mixed material obtained by mixing and curing with heat or radiation is preferable.

  The trick material may contain a specific wavelength light absorber. About the specific wavelength light absorber contained in a matrix material, it is the same as that of the specific wavelength light absorber contained in the below-mentioned filling material. The concentration of the specific wavelength light absorber contained in the matrix material is preferably in the range of 0.00001 to 50% by weight, more preferably in the range of 0.0001 to 30% by weight, still more preferably 0.0005 to 10% by weight. The most preferable range is 0.001 to 5% by weight.

[Production method of matrix material]
For example, when the trick material is a thermosetting resin, the polymerization is usually performed by gradually raising the temperature from a low temperature for the purpose of preventing non-uniform polymerization (stratification) due to convection. As the conditions, for example, heating is performed in the range of −25 to 200 ° C. for 1 to 64 hours, preferably in the range of 5 to 160 ° C. for 1 to 40 hours, and more preferably in the range of 20 to 140 ° C. for 1 to 16 hours. And can be cured. For example, when cured, a molded body is obtained by curing in a molding mold, and when a substrate is coated, a coating film (film) and a laminate are obtained.

  For example, when a thermoplastic resin typified by a polycarbonate resin is used as the matrix material, the molded article is heated by injecting a molten thermoplastic resin into a cavity made of glass and a metal mold, and cooling. Can be obtained. Moreover, a film can be obtained by extruding and cooling the thermoplastic resin in a molten state by heating. Furthermore, a coating film (film) and a laminated body can be obtained by applying a varnish-like paint in which a thermoplastic resin is dissolved in a solvent on a substrate and drying the solvent by heating or the like.

  In this case, the heating temperature is usually in the range of the melting point to 200 ° C. higher than the melting point, preferably in the range of the melting point to 100 ° C. higher than the melting point, more preferably in the range of the melting point to 50 ° C. higher than the melting point.

The heating temperature in the case of a thermoplastic resin having no melting point is usually in the range of room temperature to 400 ° C, preferably in the range of 50 to 350 ° C, more preferably in the range of 100 to 300 ° C.
For example, when the matrix material is a radiation curable resin that is cured by UV (ultraviolet rays) or the like, a molded body can be obtained by injecting into a molding mold and irradiating with UV, A coating film (film) and a laminate can be obtained.

  As the radiation used for curing the radiation curable resin, energy rays having a wavelength range of 0.0001 to 800 nm are usually used. The radiation is classified into α-rays, β-rays, γ-rays, X-rays, electron beams, ultraviolet rays, visible light, and the like, and can be appropriately selected and used according to the composition of the mixture. Among these radiations, ultraviolet rays are preferable, and the output peak of ultraviolet rays is preferably in the range of 200 to 450 nm, more preferably in the range of 220 to 445 nm, still more preferably in the range of 230 to 430 nm, and particularly preferably in the range of 240 to 400 nm. When ultraviolet rays in the above output peak range are used, there are few problems such as yellowing and thermal deformation during polymerization, and the polymerization can be completed in a relatively short time even when an ultraviolet absorber is added.

  For example, when the matrix material is an inorganic metal alkoxylate compound, for example, a catalyst such as sulfuric acid is added to TEOS (tetraalkoxysilane) and water, if necessary, and mixed and stirred to mix TEOS (tetraalkoxysilane). By carrying out hydrolysis and pouring the obtained hydrolyzed mixed dispersion into a mold or the like and gradually heating and curing in the same manner as described above, a molded body (molded product, sheet or the like) to be a matrix material can be obtained. Moreover, a coating film (film) and a laminated body can be obtained by adding a solvent as needed to the hydrolyzed mixed dispersion, applying it to a substrate, and heating and curing.

[Filling material]
The filling material includes a main material which is a material on which the filling material is based and a specific wavelength light absorber. That is, the filling material is formed by containing a specific wavelength light absorber in the main material.

  A containing form and a containing method are not limited. A typical form contained in the specific wavelength light absorber may be a dispersed form or a dissolved form, and any of them may be used, but the dissolved form is preferable in order to stably maintain the cut rate of the specific wavelength light. The method of dispersing or dissolving the specific wavelength light absorber is, for example, a filling material in which the specific wavelength light absorber is dispersed or dissolved by adding and mixing the specific wavelength light absorber to the main material monomer before curing, and curing. The method of obtaining is mentioned. For example, a method of obtaining a similar filling material by adding and mixing a light absorber having a specific wavelength to a main material in a heat-melted state, and the like can be mentioned.

(Main material)
The main material that is the base material of the filling material may be an organic material, an inorganic material, or a mixed material thereof, but light of a specific wavelength is visible in order to efficiently generate the scattered scattered light. It is necessary that the material has transparency in light and has a refractive index difference from the matrix material described above. The main material is preferably an organic material from the viewpoint of moldability, for example, a resin is preferable. The organic material, the inorganic material, the mixed material, and the resin are the same as those shown for the matrix material.

  For the main material, in order to efficiently generate scattered light from which light of a specific wavelength is cut, the effect of the opaque material is only the surface as the filling material, so the effect is thin, and in order to increase the effect, it is transparent It is preferable that there is a difference in refractive index from the matrix material described above.

  As described above, the refractive index difference from the matrix material required for the main material is preferably in the range of 0.0001 to 2.0, more preferably in the range of 0.001 to 1.7, and 0.01 to 1.5. If it is the range, it is still more preferable.

  As described above, the transparency required for the main material is effective even when the visible light transmittance of 400 to 800 nm is 0% because some of the specific wavelength light of the scattered light is absorbed by the specific wavelength absorber on the surface of the filler. However, it is preferable that the visible light transmittance at 400 to 800 nm is 10% or more in order to further improve the specific wavelength light cut rate of scattered light. And 10% is more preferably 30% or more, more preferably 50% or more, further preferably 80% or more, and most preferably 90% or more.

(Specific wavelength light absorber)
The specific wavelength light absorber contained in the filling material may be any substance as long as it absorbs light in a desired wavelength region in the radiation wavelength range, for example, an ultraviolet absorber, a blue light absorber, and the like. Agents, contrast enhancing agents that reduce the bright light region (550 to 600 nm) and make the object appear clearer, infrared absorbers, and the like.

As an ultraviolet absorber, for example,
Irgacure 127 (Ciba Specialty Chemicals), Irgacure 651 (Ciba Specialty Chemicals), Irgacure 184 (Ciba Specialty Chemicals), Darocur 1173 (Ciba Specialty Chemicals) Chemicals), benzophenone, 4-phenylbenzophenone, Irgacure 500 (Ciba Specialty Chemicals), Irgacure 2959 (Ciba Specialty Chemicals), Irgacure 907 (Ciba Specialty Chemicals) Irgacure 369 (Ciba Specialty Chemicals), Irgacure 1300 (Ciba Specialty Chemicals), Irgacure 819 (Ciba Specialty) Chemicals), Irgacure 1800 (Ciba Specialty Chemicals), Darocur TPO (Ciba Specialty Chemicals), Darocur 4265 (Ciba Specialty Chemicals), Irgacure OXE01 ( Ciba Specialty Chemicals), Irgacure OXE02 (Ciba Specialty Chemicals)), Esacure KT55 (Lamberti), Esacure ONE (Lamberti), Esacure KIP150 (Lamberti) ), Esacure KIP100F (Lamberti), Esacure KT37 (Lamberti), Esacure KTO46 (Lamberti), Esacure 1001M (Lamberti) ), Esakyua KIP / EM (manufactured by run Bell tee Co.), Esakyua DP250 (manufactured by run Bell tee Co.), Esakyua KB1 (manufactured by run Bell tee Co.), 2,4-diethyl thioxanthone, and the like.
As a blue light absorber, the following compounds etc. are mentioned, for example.

一般式（１）中、Ｒ₁およびＲ₂はそれぞれ独立して、炭素数１〜２０の有機残基を表す。また該有機残基はヘテロ原子を含んでいてもよく、水素原子の一部がハロゲン原子、水酸基、メルカプト基、およびシアノ基から選択される少なくとも一種で置換されていてもよい。

In general formula (1), R ₁ and R ₂ each independently represents an organic residue having 1 to 20 carbon atoms. The organic residue may contain a hetero atom, and a part of the hydrogen atom may be substituted with at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group.

  Examples of the organic residue having 1 to 20 carbon atoms include a substituted or unsubstituted aliphatic group having 1 to 20 carbon atoms, a substituted or unsubstituted alicyclic group having 3 to 20 carbon atoms, and a substituted or unsubstituted carbon number. Examples thereof include an alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 3 to 20 carbon atoms, and a substituted or unsubstituted heterocyclic group having 3 to 20 carbon atoms.

Examples of the substituent of the above group include at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group.
Examples of the hetero atom include a sulfur atom, an oxygen atom, a halogen atom, a nitrogen atom, and a phosphorus atom.

R ₃ and R ₄ each independently represents a divalent organic residue having 1 to 20 carbon atoms. The divalent organic residue may contain a hetero atom, and a part of the hydrogen atom may be substituted with at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group. Plural R3s may be the same or different, and plural R4s may be the same or different.

m represents an integer of 0 to 3, and is preferably 0 or 1.
R ₁ and R ₃ may be bonded to form a ring, and R ₂ and R ₄ may be bonded to form a ring. When m is 0, R ₁ and R ₂ may be bonded to form a ring.

  Examples of the divalent organic residue having 1 to 20 carbon atoms include a substituted or unsubstituted divalent aliphatic group having 1 to 20 carbon atoms and a substituted or unsubstituted divalent alicyclic group having 3 to 20 carbon atoms. Group, substituted or unsubstituted divalent alkoxy group having 1 to 20 carbon atoms, substituted or unsubstituted divalent aryl group having 3 to 20 carbon atoms, substituted or unsubstituted divalent group having 3 to 20 carbon atoms A heterocyclic group etc. can be mentioned.

Examples of the substituent of the above group include at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group.
Examples of the hetero atom include a sulfur atom, an oxygen atom, a halogen atom, a nitrogen atom, and a phosphorus atom.

A ring formed by combining R ₁ and R _3, a ring formed by combining R ₂ and R _4, and a ring formed by combining R ₁ and R ₂ when m is 0, It is formed including a carbon atom to which two sulfur atoms are bonded, and may be the same or different. Examples of the ring structure include a substituted or unsubstituted 5-membered ring to 8-membered ring, a substituted or unsubstituted condensed ring, and the like. Specifically, the optionally substituted 1,3-dithiane, 1 , 3-dithiolane, 1,3,5-trithiane, lenthionine, ring structures represented by the following formulas (i) to (iii), and the like.

下記式（ｉ）または式（ii）で表される環の置換基としては、置換または無置換の炭素数１〜２０の脂肪族基、置換または無置換の炭素数３〜２０の脂環族基、置換または無置換の炭素数１〜２０のアルコキシ基、置換または無置換の炭素数１〜２０のアルキルチオ基、置換または無置換の炭素数１〜２０のアルコキシカルボニル基、置換または無置換の炭素数１〜２０のアルキルカルボニルオキシ基、置換または無置換の炭素数３〜２０のアリールオキシ基、置換または無置換の炭素数３〜２０のアリールカルボニルオキシ基、置換または無置換の炭素数３〜２０のアリールチオ基、置換または無置換の炭素数３〜２０のアリールアミノ基、置換または無置換のベンゾイルチオ基、置換または無置換の炭素数３〜２０のアリール基、置換または無置換の炭素数３〜２０の複素環基等を挙げることができる。

Examples of the substituent of the ring represented by the following formula (i) or formula (ii) include a substituted or unsubstituted aliphatic group having 1 to 20 carbon atoms and a substituted or unsubstituted alicyclic group having 3 to 20 carbon atoms. Group, substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, substituted or unsubstituted alkoxycarbonyl group having 1 to 20 carbon atoms, substituted or unsubstituted An alkylcarbonyloxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 3 to 20 carbon atoms, a substituted or unsubstituted arylcarbonyloxy group having 3 to 20 carbon atoms, a substituted or unsubstituted carbon number 3 To 20 arylthio groups, substituted or unsubstituted arylamino groups having 3 to 20 carbon atoms, substituted or unsubstituted benzoylthio groups, substituted or unsubstituted aryl groups having 3 to 20 carbon atoms, substituted It may be mentioned heterocyclic group unsubstituted C3-20.

Preferred examples of the compound represented by the general formula (1) include compounds represented by the following general formula (2) or the following general formula (3).
First, the compound represented by the following general formula (2) will be described.

一般式（２）中、Ｒ₁およびＲ₂はそれぞれ独立して、炭素数１〜２０の有機残基を表す。また該有機残基はヘテロ原子を含んでいてもよく、水素原子の一部がハロゲン原子、水酸基、メルカプト基、およびシアノ基から選択される少なくとも一種で置換されていてもよい。また、Ｒ₁およびＲ₂は結合して環を形成していてもよい。

In general formula (2), R ₁ and R ₂ each independently represents an organic residue having 1 to 20 carbon atoms. The organic residue may contain a hetero atom, and a part of the hydrogen atom may be substituted with at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group. R ₁ and R ₂ may be bonded to form a ring.

R ₁ and R ₂ have the same meaning as in general formula (1). The ring formed by combining R ₁ and R ₂ is a ring formed including a carbon atom to which two sulfur atoms are bonded, and is a substituted or unsubstituted 5-membered ring to 8-membered ring. , Substituted or unsubstituted condensed rings, and the like. Specific examples of the ring structure include optionally substituted 1,3-dithiane, 1,3-dithiolane, 1,3,5-trithiane. , Lenthionine, ring structures represented by the above formulas (i) to (iii), and the like. The ring substituents represented by formula (i) or formula (ii) are the same as described above.

  Examples of the compound represented by the general formula (2) include trithiocarbonic acid-S, S-diethyl ester, trithiocarbonic acid-S, S-diphenyl ester, and trithiocarbonic acid-S, S-dibenzyl. Esters, trithiocarbonic acid-S, S-dinaphthyl ester, trithiocarbonic acid-S, S-bis (2-hydroxyethyl) ester, trithiocarbonic acid-S, S-bis (2-mercaptoethyl) ester , Compounds represented by the following general formula (4), compounds represented by the following general formula (5), and their metal coordination compounds.

一般式（４）中、Ｒ₅およびＲ₆はそれぞれ独立して、ハロゲン原子、水酸基、メルカプト基、シアノ基、炭素数１〜２０の有機残基を表す。また該有機残基はヘテロ原子を含んでいてもよく、水素原子の一部がハロゲン原子、水酸基、メルカプト基、およびシアノ基から選択される少なくとも一種で置換されていてもよい。Ｒ₅およびＲ₆は結合して環を形成していてもよい。

In General Formula (4), R ₅ and R ₆ each independently represent a halogen atom, a hydroxyl group, a mercapto group, a cyano group, or an organic residue having 1 to 20 carbon atoms. The organic residue may contain a hetero atom, and a part of the hydrogen atom may be substituted with at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group. R ₅ and R ₆ may combine to form a ring.

Examples of the hetero atom include a sulfur atom, an oxygen atom, a halogen atom, a nitrogen atom, and a phosphorus atom.
Examples of the organic residue having 1 to 20 carbon atoms include a substituted or unsubstituted aliphatic group having 1 to 20 carbon atoms, a substituted or unsubstituted alicyclic group having 3 to 20 carbon atoms, and a substituted or unsubstituted carbon number. 1-20 alkoxy group, substituted or unsubstituted alkylthio group having 1 to 20 carbon atoms, substituted or unsubstituted alkoxycarbonyl group having 1 to 20 carbon atoms, substituted or unsubstituted alkylcarbonyloxy group having 1 to 20 carbon atoms Group, substituted or unsubstituted aryloxy group having 3 to 20 carbon atoms, substituted or unsubstituted arylcarbonyloxy group having 3 to 20 carbon atoms, substituted or unsubstituted arylthio group having 3 to 20 carbon atoms, substituted or unsubstituted A substituted arylamino group having 3 to 20 carbon atoms, a substituted or unsubstituted benzoylthio group, a substituted or unsubstituted aryl group having 3 to 20 carbon atoms, a substituted or unsubstituted carbon number of 3 Heterocyclic group 0 can be mentioned.

Examples of the substituent of the above group include at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group.
The ring formed by combining R ₅ and R ₆ includes a carbon atom to which R ₅ is bonded and a carbon atom to which R ₆ is bonded, and is a substituted or unsubstituted five-membered ring to eight Examples thereof include a member ring, a substituted or unsubstituted condensed ring, and the like. Specific examples of the ring structure include cyclopentane, cyclohexane, benzene, furan, 1,3-dithiane, 1,3-dithiolane, thiophene, thiazole, pyridine, naphthalene, quinoline, the following formula (iv) or formula (v) The ring structure etc. which are represented by these can be mentioned.

式（ｉｖ）で表される環の置換基としては、式（ｉ）または式（ｉｉ）で表される環の置換基を挙げることができる。

Examples of the substituent of the ring represented by formula (iv) include the substituent of the ring represented by formula (i) or formula (ii).

  Examples of the compound represented by the general formula (4) include 1,3-dithiol-2-thione, 4-methyl-1,3-dithiol-2-thione, 4,5-bis (methylthio) -1, 3-dithiol-2-thione, 4,5-bis (benzylthio) -1,3-dithiol-2-thione, 4,5-bis (benzoylthio) -1,3-dithiol-2-thione, 4,5 -Bis (2-cyanoethylthio) -1,3-dithiol-2-thione, dimethyl-1,3-dithiol-2-thione-4,5-dicarboxylate, 4,5-methylenedithio-1,3- Dithiol-2-thione, 4,5-ethylenedithio-1,3-dithiol-2-thione, 5-propyl-1,3-dithiolo [4,5-d] [1,3] dithiol-2-thione, 5-hexyl-1,3-dithio [4,5-d] [1,3] dithiol-2-thione, can be exemplified 1,3,4,6 tetrathiapentalene-2,5-dithione like.

  Examples of the structure (complex) in which the compound represented by the general formula (4) is coordinated to a metal atom include a compound represented by the following general formula (8).

一般式（８）中、Ｍはニッケル、パラジウム、プラチナ、亜鉛、銅、銀、および金から選択される金属原子を表し、パラジウム、亜鉛が好ましい。

In General Formula (8), M represents a metal atom selected from nickel, palladium, platinum, zinc, copper, silver, and gold, and palladium and zinc are preferable.

X represents a nitrogen atom or a phosphorus atom. Y _{1 to} Y ₄ each independently represent an alkyl group having 1 to 10 carbon atoms or an aryl group having 3 to 10 carbon atoms. r represents 1 or 2;
Examples of the compound represented by the general formula (8) include tetrabutylammonium bis (1,3-dithiol-2-thione-4,5-dithiolate) nickel (III) complex, bis (tetrabutylammonium) bis ( 1,3-dithiol-2-thione-4,5-dithiolate) palladium (II) complex, bis (tetrabutylammonium) bis (1,3-dithiol-2-thione-4,5-dithiolate) zinc complex, tetra Butylphosphonium bis (1,3-dithiol-2-thione-4,5-dithiolate) nickel (III) complex, bis (tetrabutylphosphonium) bis (1,3-dithiol-2-thione-4,5-dithiolate) Palladium (II) complex, bis (tetrabutylphosphonium) bis (1,3-dithiol-2-thione-4,5-dithio Rate) zinc complex, dioctadecyldimethylammonium bis (1,3-dithiol-2-thione-4,5-dithiolate) gold complex, and the like.

一般式（５）中、Ｒ₇およびＲ₈はそれぞれ独立して、水素原子、ハロゲン原子、水酸基、メルカプト基、シアノ基、炭素数１〜２０の有機残基を表す。また該有機残基はヘテロ原子を含んでいてもよく、水素原子の一部がハロゲン原子、水酸基、メルカプト基、およびシアノ基から選択される少なくとも一種で置換されていてもよい。Ｒ₇およびＲ₈は結合して環を形成していてもよい。

In General Formula (5), R ₇ and R ₈ each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a mercapto group, a cyano group, or an organic residue having 1 to 20 carbon atoms. The organic residue may contain a hetero atom, and a part of the hydrogen atom may be substituted with at least one selected from a halogen atom, a hydroxyl group, a mercapto group, and a cyano group. R ₇ and R ₈ may combine to form a ring.

R ₇ and R ₈ are synonymous with R ₅ and R _{6 in} the general formula (4), and the ring formed is also synonymous.
Examples of the compound represented by the general formula (5) include ethylene trithiocarbonate, 4-methyl-ethylene trithiocarbonate, 4-ethyl-ethylene trithiocarbonate, 4-hydroxy-ethylene trithiocarbonate, 4-benzyl. Oxy-ethylene trithiocarbonate, 4-phenyloxy-ethylene trithiocarbonate, 4-naphthoxy-ethylene trithiocarbonate, 4-nonadecyloxy-ethylene trithiocarbonate, 4-acetoxy-ethylene trithiocarbonate, ethylene trithiocarbonate-4 -Benzoate, ethylene trithiocarbonate-4-naphthoate, ethylene trithiocarbonate-4-anthracene carboxylate, 4-anthraquinonylamino-ethylene trithiocarbonate, - mercapto - ethylene trithiocarbonate, 4-methylthio - ethylene trithiocarbonate, 4-benzylthio - ethylene trithiocarbonate compounds represented by the following general formula (6) thereof, and the like metal coordination compounds.

一般式（６）中、Ｑはハロゲン原子、水酸基、メルカプト基、およびシアノ基を表す。

In general formula (6), Q represents a halogen atom, a hydroxyl group, a mercapto group, and a cyano group.

  Examples of the compound represented by the general formula (6) include 4-fluoromethyl-ethylene trithiocarbonate, 4-chloromethyl-ethylene trithiocarbonate, 4-bromomethyl-ethylene trithiocarbonate, 4-iodomethyl-ethylene tri Examples thereof include thiocarbonate, 4-hydroxymethyl-ethylene trithiocarbonate, 4-mercaptomethyl-ethylene trithiocarbonate, and metal coordination compounds thereof.

一般式（３）中、Ｒ₁〜Ｒ₄は、一般式（１）のＲ₁〜Ｒ₄と同義であり、形成される環も同義である。

In the general formula (3), R ₁ to R ₄ are the same as R ₁ to R ₄ in the general formula (1), the ring formed is also synonymous.

  Examples of the compound represented by the general formula (3) include propylene-1,3-trithiocarbonate, butylene-1,4-trithiocarbonate, and a compound represented by the following general formula (7) which is a novel compound. And their metal coordination compounds.

一般式（７）中、Ｒ₉は水素原子、炭素数１〜４のアルキル基、またはフェニル基を表す。ｐおよびｑはそれぞれ独立して０〜１０の整数を表す。

In General Formula (7), R ₉ represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group. p and q each independently represents an integer of 0 to 10.

R ₉ represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, and a hydrogen atom or an alkyl group having 1 to 4 carbon atoms is relatively preferable from the viewpoint of solubility with a resin or a polymerizable compound, Most preferred is a hydrogen atom. p and q each independently represent an integer of 0 to 10, preferably in the range of integers of 0 to 5, more preferably in the range of integers of 0 to 3, and most preferably in the range of integers of 0 to 2.

  Examples of the compound represented by the general formula (7) include bis (1,3-dithiolane-2-thione-4-methyl) sulfide and bis (1,3-dithiolane-2-thione-4-methyl) disulfide. Bis (1,3-dithiolane-2-thione-4-methyl) trisulfide, bis (1,3-dithiolane-2-thione-4-methyl) disulfide, bis (1,3-dithiolane-2-thione- 4-methyl) tetrasulfide, bis (1,3-dithiolane-2-thione-4-methyl) pentasulfide, bis (1,3-dithiolane-2-thione-4-methyl) -1,3-dithiapropane, bis (1,3-dithiolane-2-thione-4-methyl) -2-methyl-1,3-dithiapropane, bis (1,3-dithiolane-2-thione-4-methyl) -2-ethyl- , 3-dithiapropane, bis (1,3-dithiolane-2-thione-4-methyl) -2-propyl-1,3-dithiapropane, bis (1,3-dithiolane-2-thione-4-methyl) -2 -Butyl-1,3-dithiapropane, bis (1,3-dithiolane-2-thione-4-methyl) -2-phenyl-1,3-dithiapropane, bis (1,3-dithiolane-2-thione-4- Methyl) -1,3,5-trithiapentane, bis (1,3-dithiolane-2-thione-4-methyl) -1,3,5,7-tetrathiaheptane, bis (1,3-dithiolane- 2-thione-4-methyl) -1,3,5,7,9-pentathiononane, bis (1,3-dithiolane-2-thione-4-methyl) -1,4-dithiabutane, bis (1,3- Dithiolane-2-thione-4 Methyl) -1,4,7-trithiaundecane heptane, and the like their metal coordination compounds.

  As the contrast enhancing agent (intermediate color wavelength absorber), an intermediate color light absorber having an absorption peak in the range of 500 to 650 nm is preferable, and an intermediate color light absorber having an absorption peak in the range of 570 to 610 nm is particularly preferable. White light such as sunlight contains a lot of light in the yellow wavelength region, which is the intermediate wavelength region of 570 to 610 nm. Therefore, by selectively cutting off the wavelength in this region, the glare is reduced and the object is It can be made easier to see. The intermediate color light absorber that absorbs 570 to 610 nm color light may be used alone or in combination of two or more.

  Specific examples of the intermediate color light absorber that absorbs the color light in the intermediate wavelength range include any dye that can absorb the light having the wavelength described above, and may be a dye or a pigment. May be. Examples of the intermediate color light absorber include xanthene-based, sarilium-based, cyanine-based, oxonol-based, azo-based, pyromethene-based, and porphyrin-based compounds. Of these, porphyrin compounds are preferred. This is because they are readily available and have high stability and absorption characteristics. In particular, the porphyrin-based compound is preferably a compound having a branched alkyl group as a substituent, such as a tetra-t-butyl-tetraazaporphyrin complex or a tetra-neo-pentyl-tetraazaporphyrin complex. When it has a branched alkyl group such as t (tertiary) -butyl group or neo-pentyl group, the three-dimensional structure of the porphyrin compound has high three-dimensionality, and the absorption characteristics due to the formation of aggregates and crystallization. This is more preferable because it is possible to suppress the decrease in the solubility and improve the solubility in a solvent or the like.

As the infrared absorber, for example, a material that strongly absorbs light in the visible light long wavelength region from the wavelength of 650 nm to 1000 nm in the range of the near infrared region is preferable.
More specifically, a composite tungsten oxide and a heterocyclic porphyrazine metal complex can be given, and one or more compounds can be used in combination. The composite tungsten oxide fine particles have a general formula MyWOz (where M is one or more elements selected from Cs, Rb, K, Tl, In, Ba, Li, Ca, Sr, Fe, Sn, Al, Cu). , 0.1 ≦ y ≦ 0.5, 2.2 ≦ z ≦ 3.0) and having a hexagonal crystal structure, such as YMDS-874 manufactured by Sumitomo Metal Mining Co., Ltd. Can be mentioned. Examples of the heterocyclic porphyrazine metal complex include YKR-5010 manufactured by Yamamoto Kasei Co., Ltd. Among these, it tends to be preferable to include a heterocyclic porphyrazine metal complex.

  Other organic compounds such as phthalocyanine compounds, naphthalocyanine compounds, imonium compounds, diimonium compounds, polymethine compounds, diphenylmethane compounds, triphenylmethane compounds, quinone compounds, azo compounds, pentadiene compounds, azomethine compounds, squarylium compounds, organometallic complexes, cyanine compounds A compound can be mentioned.

  The addition amount of the specific wavelength absorber contained in the filling material composed of the specific wavelength light absorber and the main material is not constant because it is determined timely according to the desired specific wavelength cut rate. Expressed in terms of concentration, it is usually in the range of 0.00001 to 99% by weight, preferably in the range of 0.0001 to 90% by weight, more preferably in the range of 0.001 to 40% by weight, still more preferably 0.01 to 20% by weight. % Range, most preferably 0.1 to 10% by weight. If the concentration in the filling material is less than 0.00001%, the effect is too thin to be effective. When the concentration in the filling material exceeds 99%, it is almost in the state of the specific wavelength absorber itself, and the form of particles described below {usually in the range of 0.01 μm (10 nm) to 10000 μm (10 mm)} is stable. It may be difficult to hold.

[Production method of filling material]
As a method for producing the filling material, a molded body is produced in the same manner as the matrix material producing method, except that a light absorber having a specific wavelength is added to and mixed with the same raw material as that of the matrix material before curing and molding. Is a method of pulverizing and atomizing.

  The pulverization method may be a known method, and any method may be used, but typical pulverization methods include the following methods. For example, freeze grinding, ball mill grinding, bead mill grinding, hammer mill grinding, bin mill grinding, rotary mill grinding, planetary mill grinding, atlanter grinding, jaw crusher grinding, roll crusher grinding, cutter mill grinding, stamp mill grinding, mortar Among these, freeze pulverization, ball mill pulverization, bead mill pulverization and the like are preferable. The shape of the particles is not particularly limited, and may be, for example, a spherical shape, a rod shape, or a spheroid shape.

  The particle size range of the filling material is appropriately changed according to the purpose, but is usually in the range of 0.01 μm (10 nm) to 10000 μm (10 mm), preferably in the range of 0.1 μm (100 nm) to 3000 μm (3 mm), and more preferably. Is in the range of 0.5 μm (500 nm) to 1000 μm (1 mm). If it is 0.01 μm or less, visible light tends to pass through and the generation of scattered light tends to become extremely weak. If it exceeds 10000 μm (10 mm), visible light tends to be reflected and similarly the generation of scattered light tends to become extremely weak. is there.

  The addition amount of the filler material atomized by adding these specific wavelength light absorbers changes appropriately according to the desired scattered light amount, the cut rate of the specific wavelength light in the scattered light, etc. Expressed as a concentration in (matrix resin + filling material), it is usually in the range of 0.001 to 90% by weight, preferably in the range of 0.01 to 40% by weight, more preferably in the range of 0.1 to 20% by weight. Most preferably, it is in the range of 1 to 10% by weight.

[Filling material dispersion and method for producing the same]
The filling material dispersion is a filling material in which the filling material containing the above-mentioned specific wavelength light absorber is dispersed in a matrix material, for example. Incidentally, the molded product referred to in the present invention includes all molded products having shapes such as a sheet, a film, a film, and particles in addition to a general thick molded product.

Examples of the method for producing the filler material dispersion of the present embodiment include casting polymerization, injection molding, RIM (reaction injection molding process), coating, and the like.
For example, a filler material containing a light absorber of a specific wavelength is mixed and dispersed in a matrix material (varnish, polymer melt, monomer, etc.), and then heat-dried (solvent evaporation), heat-cured, and / or UV (ultraviolet) By forming a molded body by representative radiation curing or the like, a target filler material dispersion can be obtained.

  More specifically, for example, when the matrix material is a thermoplastic resin, the above filling material and pellets of the thermoplastic resin are melt-kneaded, and a molded body made of the filling material dispersion can be obtained by injection molding or melt extrusion. . Also, a solvent is added to the pellets of the thermoplastic resin to dissolve, the filler material is added to the solution, the resulting filler dispersion solution is applied to the substrate, and the solvent is dried by heating or the like to form a film on the substrate. And a laminated body in which the film-like filling material dispersion (film) is laminated.

  For example, when the matrix material is a polythiourethane resin that is a thermosetting resin, the above filling material is a mixture of a compound having two or more polyisocyanate groups and a compound having two or more mercapto groups, which are raw materials of the matrix material. In addition to the liquid, the mixture is stirred and mixed, and the resulting mixed dispersion is degassed under reduced pressure as necessary and poured into a molding mold composed of a glass mold and a tape, etc. The resulting molded body (molded product, sheet, etc.) can be obtained. In addition, a solvent mixed dispersion obtained by further adding a solvent to the mixed dispersion is applied to a substrate, and if necessary, the solvent is dried and cured by heating to form a film-like filling material dispersion ( A laminate in which the film) and the film-like filler dispersion (film) are laminated can be obtained.

  The filler dispersion of this embodiment may contain, as necessary, a catalyst, an ultraviolet polymerization initiator, a thermal polymerization initiator, an ultraviolet polymerization initiator, an internal mold release agent, a curing agent, and the like as other components. it can. In addition, various other components such as antioxidants, photochromic agents, thermochromic agents, dyes, dyes, pigments, leveling agents, surfactants, plasticizers and the like can be included. The content of other components is usually in the range of 50% by weight or less, preferably 20% by weight or less, more preferably 10% by weight or less, and particularly preferably 5% by weight or less.

  Examples of internal mold release agents added as necessary include monobutyl phosphate, dibutyl phosphate, monohexyl phosphate, dihexyl phosphate, monooctyl phosphate, dioctyl phosphate, monoundecane phosphate, diundecane phosphate, Examples thereof include phosphoric acid compounds such as monobutoxyethyl phosphoric acid, dibutoxyethyl phosphoric acid, monooctylphenyl phosphoric acid, and dioctylphenyl phosphoric acid.

  When the filler material dispersion thus obtained and the laminate in which the filler material dispersion is laminated are irradiated with light, scattered light in which light in a desired wavelength region is cut can be obtained. Similarly, when light is applied to a coating material or a laminate obtained by applying a coating material containing a filling material or a filling material dispersion, and a coating material containing the coating material, light in a desired wavelength region is cut. Scattered light can be obtained. Furthermore, the cut rate of scattered light, which is the ratio of the amount of cut specific wavelength light to the added amount of specific wavelength light absorber, is a filling material rather than simply adding a specific wavelength light absorber to a paint or matrix resin. It is much larger when a specific wavelength light absorber is added. Of course, when it is desired to further improve the cut rate, it is possible to add a specific wavelength light absorber to the paint or matrix resin.

  The filler material dispersion thus obtained or the laminate in which the filler material dispersion is laminated, and the coating material in which the filler material or the filler material dispersion is dispersed and the laminate in which the paint film is laminated are irradiated with light. In the scattered light generated in this manner, the desired specific wavelength region may be cut in a range of about 0.1 to 100%, preferably 1 to 100%, compared with the case where no specific wavelength light absorber is added. it can. More preferably, it can cut in the range of 10 to 100%, more preferably in the range of 30 to 100%.

  For example, a specific blue light region in a short wavelength range of 380 to 420 nm with particularly high energy among harmful blue light can be cut in the same range as described above.

  The filler material dispersion, the laminate in which the filler material dispersion is laminated, the coating material in which the filler material or the filler material dispersion is dispersed, and the laminate in which the coating film is laminated include corona treatment, plasma treatment, Various surface treatments such as ultraviolet treatment, flare treatment, and itro treatment can be performed.

  In addition, adhesiveness is obtained on the filler material dispersion and the laminate in which the filler material dispersion is laminated, and on the coating material in which the filler material or the filler material dispersion is dispersed and on the laminate in which the paint film is laminated. Primer layer that improves scratches, a hard coat layer that prevents scratches, an antireflection layer that suppresses reflectivity and further improves transparency, a water repellent layer that imparts slipperiness, or a hydrophilic layer and water absorption that imparts antifogging properties Various layers such as layers can be stacked.

  The filler material dispersion, the laminate in which the filler material dispersion is laminated, the coating material in which the filler material or the filler material dispersion is dispersed, and the laminate in which the paint film is laminated are generated by irradiation with light. With respect to the scattered light, the desired specific wavelength region can be cut, so that it can be used for various applications related to the scattered light. The filler material dispersion can be suitably used for applications such as clothes, walls and other building materials, road materials, paint materials, and cosmetic materials, where exposure to reflected and scattered light from sunlight is a concern.

  In general, paints include paint resins, pigments and other pigments, additives, solvents, etc., but the paint material of the present invention is a material added to the paint, and at least the filler material or filler material dispersion. It contains the body and may contain other components besides that. Other components can include components that a conventional paint or paint material can normally contain.

  The shape of the filling material or filling material dispersion contained in the coating material of the present invention is not particularly limited, but when the coating material is produced using the coating material of the present invention, the filling material or filling material dispersion is usually used. Since it is usually added in the form of powder, it is preferable that the filling material or the filling material dispersion contained in the coating material of the present invention is also in the form of powder. The shape of the particles is not particularly limited, and may be, for example, a spherical shape, a rod shape, or a spheroid shape.

  When the shape of the filler material dispersion is powder, the average particle size is the same as that of the filler material, and is usually in the range of 0.01 μm (10 nm) to 10000 μm (10 mm), preferably 0.1 μm (100 nm) to The range is preferably 3000 μm (3 mm), more preferably 0.5 μm (500 nm) to 1000 μm (1 mm). When the average particle diameter of the filling material or the filling material dispersion is in the above range, the function of the filling material dispersion can be expressed effectively, and the function required for the paint can be maintained. The average particle diameter is a numerical value measured by a wet laser light diffraction scattering method.

There is no restriction | limiting in particular in the coating material in which the coating material of this invention is used, The coating material of this invention can be used for various types of coating materials.
The paint includes the paint material of the present invention, and usually a paint resin, a pigment such as a pigment, and additives other than the paint material. The paint resin is not particularly limited, and can be included in conventional paints such as acrylic paint resin, urethane paint resin, silicon paint resin, fluorine paint resin, and the filler. The matrix resin used for the dispersion can be mentioned. There is no restriction | limiting in particular also about pigments, such as a pigment, and an additive, The component normally used for the conventional coating material can be used.

The paint can be produced by mixing the paint material of the present invention and other paint components.
The amount of the coating material of the present invention used for the paint is such that when the coating material contains the filler material dispersion, the content of the filler material dispersion in the paint is usually 1 to 99% by mass. The amount of the coating material is preferably in the range of 5 to 80% by mass, more preferably in the range of 10 to 70% by mass, and most preferably in the range of 20 to 60% by mass. When not containing a dispersion and containing the filler, the content of the filler in the paint is usually in the range of 1 to 99% by mass, preferably in the range of 5 to 80% by mass, more preferably The amount is preferably in the range of 10 to 70% by mass, most preferably in the range of 20 to 60% by mass. When the amount of the coating material of the present invention contained in the coating material is in the above range, the function of the filler material dispersion can be expressed effectively, and the function required for the coating material can be maintained.

  The paint may be a water-based paint, an oil-based paint, or a powder paint as long as the function of the filling material or the filling material dispersion can be effectively expressed. The paint may be a one-liquid type or a two-liquid type. The paint may be a paint used for undercoating, intermediate coating, and topcoating.

The paint containing the paint material of the present invention can be used in the same manner as a normal paint depending on the type of the paint.
A coating film can be obtained by applying a paint containing the paint material of the present invention to a building outer wall or the like. This coating contains the filler material or filler material dispersion. A conventional coating film formed from a paint that does not contain the paint material of the present invention generates reflected light when irradiated with light, and the reflected light contains light such as blue light harmful to the eyes. For this reason, people around the building outer wall or the like on which the conventional coating film obtained by the paint not containing the paint material of the present invention is formed will be irradiated with light such as blue light. Vulnerable to damage. On the other hand, since the coating film formed with the coating material containing the coating material of the present invention includes a filling material or a filling material dispersion that absorbs light of a specific wavelength, it generates reflected light when irradiated with light. The filling material or the filling material dispersion absorbs light having a wavelength harmful to eyes or the like included in the reflected light, and the reflected light does not include light such as blue light harmful to the eyes. For this reason, a person around the building outer wall or the like on which the coating film obtained by the paint containing the paint material of the present invention is formed can be prevented from being irradiated with light such as blue light, eyes, etc. You can avoid the risk of harm.

Hereinafter, although the said filler dispersion is demonstrated concretely based on a test example, the said filler dispersion is not limited to these test examples. From the results of this test example, the effect of the coating material of the present invention is presumed.
Evaluation in the test example and the comparative test example was performed by the following method.

<Measurement of refractive index Nd (587.6 nm)>
The refractive index Nd (587.6 nm) was measured at 20 ° C. using Shimadzu Device Manufacturing Co., Ltd., refractometer KPR-30.

<Measurement of particle size distribution>
After irradiating an ultrasonic wave (output: 25 W) for 5 minutes to the dispersion liquid in which the sample (filling material) and methanol were mixed, the particle size distribution was measured using a particle size distribution meter MT3300EXII (wet, laser light diffraction scattering method) manufactured by MICROTRAC.

<Measurement of scattered light>
The filling material dispersion was irradiated with light of D65, and the intensity of scattered light at a wavelength of 360 to 740 nm generated from the filling material dispersion was measured using Konica Minolta, CM-3700d (reflection method).

[Production Example 1-1]
(Manufacture of molded body made of thioepoxy resin having refractive index (D line) of 1.73)
To 100 parts of bis (thioglycidyl) disulfide, 0.44 part (0.4% by weight) of tinuvin 326 (BASF) as an ultraviolet and blue light absorber was added and mixed and dissolved. Subsequently, 4,8-bis (mercaptomethyl) -3,6,9-trithiaundecane-1,11-dithiol, 4,7-bis (mercaptomethyl) -3,6,9-trithia was added to the mixed solution. Mixture of undecane-1,11-dithiol and 5,7-bis (mercaptomethyl) -3,6,9-trithiaundecane-1,11-dithiol 3.16 parts, dicyclohexylmethylamine as catalyst 0.10 parts Similarly, 0.02 part (0.02% by weight) of dimethylcyclohexylamine was added as a catalyst and mixed and dissolved again to obtain 110.56 parts of a uniform polymerizable composition.

  The obtained polymerizable composition was degassed under reduced pressure (<10 torr × 10 minutes), passed through a Teflon filter having a pore size of 1 μm and sealed in a mold composed of a glass plate and a tape, and then from 30 ° C. to 120 ° C. over 28 hours. Polymerization was conducted by gradually heating.

  Finally, the mold was cooled to 60 ° C., the glass plate and the tape were peeled off, and a resin molded product having a refractive index (D line) of 1.73 cured inside was taken out. The visible light transmittance of 400 to 800 nm of the molded product was 85.6%.

[Production Example 1-2]
(Manufacture of a filling material having a refractive index (D line) of 1.73 containing 0.4% by weight of a specific wavelength light absorber)
A resin molded body having a refractive index (D line) of 1.73 containing 0.4 wt% of tinuvin 326 as the ultraviolet and blue light absorbent obtained in Production Example 1-1 was freeze-ground with liquid nitrogen. The particle size of the obtained filling material was in the range of 0.8 to 400 μm. The results are shown in FIG.

[Production Example 1-3] Measurement of resin physical properties of only matrix resin containing no filler material 45.7 g of bis (isocyanatomethyl) norbornane, 0.03 g (0.03% by weight) of dimethyltin dichloride as a catalyst, and internal mold release Plysurf A212C (Daiichi Kogyo Seiyaku Co., Ltd.) as an agent is mixed with 0.5 g (0.5 wt%), then 54.2 g of pentaerythritol tetrakis (3-mercaptopropionate) is added, and the pressure is lower than 10 torr at room temperature. The mixture was degassed for 1 hour under reduced pressure to obtain a transparent polymerizable composition for a matrix resin.

  The obtained dispersion was transferred and sealed in a cavity of 4 mm gap formed from a φ70 mm glass plate and tape, and then heated in an oven from 30 ° C. to 80 ° C. over 8 hours, and then from 80 ° C. to 130 ° C. Then, the temperature was raised over 4 hours, and the mixture was held at 130 ° C. for 2 hours for polymerization and curing.

  After cooling to room temperature, the tape and the glass plate were peeled off to obtain a plate-like matrix resin molded body having an internal thickness of 4 mm. The matrix resin molded product had a refractive index (D line) of 1.59 and a visible light transmittance of 400 to 800 nm of 89.6%.

[Test Example 1]
Bis (isocyanatomethyl) norbornane 45.7 g, 0.03 g of dimethyltin dichloride as a catalyst (0.03% by weight with respect to the matrix resin) as a catalyst, and Prisurf A212C (Daiichi Kogyo Seiyaku) 0.5 g as an internal mold release agent (0.5% by weight based on the matrix resin) was mixed to obtain a uniform bis (isocyanatomethyl) norbornane solution.

  In this uniform solution, a filling material having a refractive index (D line) of 1.73 containing the light absorber of the specific wavelength obtained in Production Example 1-2 (particle diameter is 0.8 to 400 μm), 4.0 g (on the matrix resin) 4 wt.%), And mixed and stirred at room temperature for 5 minutes, and then 54.2 g of pentaerythritol tetrakis (3-mercaptopropionate) was added and mixed for 1 hour while reducing the pressure at room temperature under 10 torr. A white resin powder dispersion was obtained by defoaming.

  The obtained dispersion was transferred and sealed in a cavity of 4 mm gap formed from a φ70 mm glass plate and tape, and then heated in an oven from 30 ° C. to 80 ° C. over 8 hours, and then from 80 ° C. to 130 ° C. Then, the temperature was raised over 4 hours, and the mixture was held at 130 ° C. for 2 hours for polymerization and curing.

  After cooling to room temperature, the tape and glass plate are peeled off, a 4 mm thick plate-like filling material dispersion is taken out, the matrix material made of polythiourethane resin, the main material made of thioepoxy resin and the specific wavelength light A filler material dispersion in which a filler material containing an absorbent was dispersed was obtained.

  The results are shown in Table 1 and FIG. Table 1 shows the intensity of scattered light at wavelengths of 400, 410, and 420 nm as the intensity of scattered light, and also shows the cut rate of specific wavelength light.

[Test Example 2]
A filling material dispersion was obtained in the same manner as in Test Example 1 except that 1.0 g (1%) of tinuvin 326 was added to the bis (isocyanatomethyl) norbornane solution and mixed and dissolved again. The results are shown in Table 1 and FIG.

[Comparative Production Example 1-1]
(Manufacture of a resin molded product having a refractive index (D line) of 1.73 not including a specific wavelength light absorber)
A resin molded body was produced in the same manner as in Production Example 1-1 except that Tinuvin 326 (BASF) used as an ultraviolet and blue light absorbent was not added.

[Comparative Production Example 1-2]
(Manufacture of Filling Material with Refractive Index (D Line) 1.73 not Containing Specific Wavelength Light Absorber)
The resin molded product having a refractive index (D line) of 1.73 that does not contain the ultraviolet and blue light absorbent tinuvin 326 obtained in Comparative Production Example 1-1 was freeze-ground with liquid nitrogen. The particle size of the obtained filling material was in the range of 1 to 500 μm. The results are shown in FIG.

[Comparative Test Example 1]
The filling material of Production Example 1-2 was changed to the filling material of Comparative Production Example 1-2 (not including a specific wavelength light absorber), and the same procedure as in Test Example 1 was performed to obtain a filling material dispersion. The results are shown in Table 1 and FIG.

[Comparative Test Example 2]
A filling material dispersion was obtained in the same manner as in Comparative Test Example 1 except that 1.0 g (1% by weight) of Tinuvin 326 was added to the bis (isocyanatomethyl) norbornane solution and mixed and dissolved again. The results are shown in Table 1 and FIG.

Claims (6)

A coating material comprising a filler material dispersion comprising a matrix material and a filler material dispersed in the matrix material,
The matrix material has a visible light transmittance of 400 to 800 nm of 10% or more,
The filler material has a refractive index different from that of the matrix material, and includes a main material and a specific wavelength light absorber,
The coating material in which the said specific wavelength light absorber is contained in the said filling material in 0.00001-99 mass%.   The coating material according to claim 1, wherein one or both of the matrix material and the main material of the filling material is a material made of a resin.   The coating material according to claim 1, wherein the matrix material contains a specific wavelength light absorber.   A coating material containing a filler material, wherein the filler material includes a main material and a specific wavelength light absorber, and the specific wavelength light absorber is included in the filler material in a range of 0.00001 to 99% by mass. Paint material.   The coating material according to any one of claims 1 to 4, wherein a particle diameter of the filling material is in a range of 0.01 to 10000 µm.   The coating material according to claim 1, wherein the specific wavelength light absorber is at least one selected from an ultraviolet absorber, a visible light absorber, and an infrared absorber.

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