Compositions, shaped bodies and devices

Abstract

A composition comprising a pigment and a resin, the pigment comprising one or two or more selected from the group consisting of a nickel azo complex pigment, a quinacridone pigment, and a phthalocyanine pigment represented by general formula (Pc) or a dimer of the phthalocyanine pigment.

Description

Technical Field

[0001] This invention relates to compositions, molded articles, and devices.

[0002] This application claims priority based on Japanese Patent Application No. 2023-204103 filed on December 1, 2023, the contents of which are incorporated herein by reference. Background Technology

[0003] In the past, infrared cameras and sensors were used to visualize changes in the amount of infrared radiation emitted by an object as a result of temperature variations. Compared to detection using visible light, this method offers greater stability in low-light conditions. Infrared cameras and sensors are widely used in medical diagnostics, non-destructive inspections to detect deterioration in buildings and electrical equipment, night vision cameras in security, and personal authentication systems such as biometric authentication cameras in financial institutions' ATMs and airports.

[0004] In addition, LiDAR (Light Detection and Ranging) is a remote sensing method that determines distance by illuminating an object with near-infrared, visible, or ultraviolet light and detecting the reflected light using a light sensor. Near-infrared (NIR) sensors are used in vehicles, among other applications. LiDAR is currently used supplementarily in adaptive cruise control and other systems in vehicles, and significant demand is expected in Advanced Driver Assistance Systems (ADAS) and future Autonomous Driving (AD) systems. High-performance LiDAR is required to advance ADAS / AD.

[0005] Optical glass or optical resin is used as the material for optical components such as cameras and sensors. Among them, thermoplastic resin compositions containing high-refractive-index materials and optical lenses using such resin compositions are materials that block visible light and have infrared light transmittance. For example, Patent Document 1 discloses a thermoplastic resin composition comprising a thermoplastic resin and a colorant, which has a refractive index of 1.60 or higher at a wavelength of 894 nm. In the above-mentioned thermoplastic resin composition with a thickness of 1 mm, the maximum transmittance at wavelengths of 380 nm to 630 nm is greater than 0% and less than 1.00%, and the average transmittance at wavelengths of 840 nm to 940 nm is 80% or higher.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: International Publication No. 2020 / 138050 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] Previously, copper phthalocyanine was mainly used as a blue pigment, but this resulted in low infrared transmittance. Since most commercially available phthalocyanine pigments have copper as their central metal, it is difficult to ensure high infrared transmittance when mixing with other colors, necessitating the use of blue pigments with high infrared transmittance for color mixing. Similarly, red and yellow pigments with high infrared transmittance are also required.

[0011] The prior art described above describes reducing noise from visible light by setting the maximum transmittance of visible light and the average transmittance of infrared light within the aforementioned ranges, but it does not mention the infrared transmittance and heat resistance of resin compositions containing any one or more of phthalocyanine pigments such as aluminum phthalocyanine pigments, nickel azo complexes and quinacridone pigments, as well as resins, leaving room for improvement.

[0012] The purpose of this invention is to provide compositions, molded articles, and devices that combine excellent infrared transmission and good heat resistance, and can achieve improved sensing accuracy and excellent sensing stability.

[0013] Methods for solving problems

[0014] Through repeated and in-depth research, the inventors discovered that adding one or more of nickel azo complex, quinacridone pigment, and specified phthalocyanine pigment to the resin results in good infrared transmission and excellent heat resistance. As a result, the sensing accuracy is improved, and excellent sensing can be achieved stably.

[0015] That is, the present invention provides the following structure.

[0016] [1] A composition comprising a pigment and a resin, wherein the pigment comprises one or more selected from the group consisting of nickel azo complex pigments, quinacridone pigments, and phthalocyanine pigments represented by the following general formula (Pc) or dimers of the phthalocyanine pigments.

[0017] [Chemistry 1]

[0018]

[0019] In the formula, M Pc X represents Pc -Al (aluminum with trivalent oxidation state), X Pc -Co (trivalent cobalt), Sn (divalent tin) or Fe (divalent iron), X Pc This represents a hydroxyl group, fluorine atom, chlorine atom, bromine atom, iodine atom, or -OP (=O)R. 1 R 2 -OC(=O)R 3 -OSO2R 4 R1 R 2 Each of the following independently represents a hydrogen atom, a hydroxyl group, an alkyl group that may have substituents, an aryl group that may have substituents, an alkoxy group that may have substituents, or an aryloxy group that may have substituents; R 1 R 2 They can bond together to form a ring, R 3 R represents a hydrogen atom, an alkyl group that may have substituents, a cycloalkyl group that may have substituents, an aryl group that may have substituents, or a heterocyclic group that may have substituents. 4 It represents a hydroxyl group, an alkyl group that may have substituents, an aryl group that may have substituents, or a heterocyclic group that may have substituents.

[0020] [2] According to the composition described in [1] above, wherein the average particle size of the pigment is 1 nm or more and 100 nm or less.

[0021] [3] According to the composition described in [1] above, wherein the resin is selected from the group consisting of polyethylene terephthalate (PET) resin, polycarbonate (PC) resin, acrylonitrile styrene (AS) resin, polymethyl methacrylate (PMMA) resin, acrylonitrile / butadiene / styrene (ABS) copolymer resin, polyamide (PA) resin, and amino alkyd resin.

[0022] [4] The composition according to any one of [1] to [3] above, wherein the composition is a composition for molding or a composition for coating.

[0023] [5] A molded body formed by molding the molded body described in [4] above with a composition.

[0024] [6] The molded body according to [5] above, wherein the infrared transmittance of the molded body at 900 nm is 60% or more.

[0025] [7] A device having the molded body described in [5] or [6] above.

[0026] Invention Effects

[0027] According to the present invention, compositions, molded articles, and devices are provided that can balance excellent infrared transmission and good heat resistance, and can achieve improved sensing accuracy and excellent sensing stability. Attached Figure Description

[0028] Figure 1 The CIE-L of the molded articles obtained in the examples and comparative examples is measured. a b In the color system, a b And plot the result of a b Color space chromaticity diagram.

[0029] Figure 2 This is a schematic diagram illustrating an example of a device having a molded body formed by molding the molded body of the present invention using a composition. Detailed Implementation

[0030] The following describes embodiments of the present invention. However, the present invention is not limited to these embodiments.

[0031] <Composition>

[0032] The composition of this embodiment is a composition comprising pigment and resin, wherein the pigment comprises one or more selected from the group consisting of nickel azo complex pigment, quinacridone pigment and phthalocyanine pigment represented by the following general formula (Pc) or dimers of the phthalocyanine pigment.

[0033] [pigment]

[0034] (Nickel azo complex pigment)

[0035] There are no particular limitations on the nickel azo complex pigment, for example, it may contain a compound represented by formula (1) below. The nickel azo complex pigment may contain a compound represented by formula (1) below, or it may be composed of a compound represented by formula (1) below. The nickel azo complex pigment of this embodiment is typically contained in the composition as a yellow pigment.

[0036] [Chemistry 2]

[0037] (1)

[0039] The content of the above-mentioned nickel azo complex pigment is not particularly limited, but is preferably 10 to 100% by mass relative to 100% of the total amount of the pigment, and more preferably 30 to 60% by mass.

[0040] (Quinacridone pigment)

[0041] The quinacridone pigment is not particularly limited, and may contain, for example, at least one of the compounds shown in formulas (2) to (7) below. The quinacridone pigment of this embodiment is typically contained in the composition as a red pigment.

[0042] [Chemistry 3]

[0043]

[0044] [Chemistry 4]

[0045]

[0046] [Chemistry 5]

[0047]

[0048] [Chemistry 6]

[0049]

[0050] The content of the above-mentioned quinacridone pigment is not particularly limited, but is preferably 10 to 100% by mass relative to 100% of the total amount of the pigment, and more preferably 30 to 60% by mass.

[0051] Quinacridone pigments may contain at least two of the three specific isomers (R209) shown in formulas (2) to (4) above, or may contain the three specific isomers mentioned above.

[0052] (Phthalocyanine pigment)

[0053] Phthalocyanine pigments comprise one or more of the compounds represented by the general formula (Pc) below or dimers of such compounds. Hereinafter, "phthalocyanine pigments represented by the general formula (Pc) or dimers of such phthalocyanine pigments" will also be referred to simply as phthalocyanine pigments.

[0054] [Chemistry 7]

[0055]

[0056] (where M is in the formula) Pc X represents Pc -Al (aluminum with trivalent oxidation state), X Pc -Co (trivalent cobalt), Sn (divalent tin) or Fe (divalent iron), X Pc This represents a hydroxyl group, fluorine atom, chlorine atom, bromine atom, iodine atom, or -OP (=O)R. 1 R 2 -OC(=O)R 3 -OSO2R 4 R 1 R 2 Each of the following independently represents a hydrogen atom, a hydroxyl group, an alkyl group that may have substituents, an aryl group that may have substituents, an alkoxy group that may have substituents, or an aryloxy group that may have substituents; R 1 R 2 They can bond together to form a ring, R 3 R represents a hydrogen atom, an alkyl group that may have substituents, a cycloalkyl group that may have substituents, an aryl group that may have substituents, or a heterocyclic group that may have substituents. 4 (This refers to a hydroxyl group, an alkyl group that may have substituents, an aryl group that may have substituents, or a heterocyclic group that may have substituents.)

[0057] Examples of alkyl groups that can have substituents include straight-chain or branched alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, neopentyl, n-hexyl, n-octyl, stearyl, and 2-ethylhexyl; trichloromethyl, trifluoromethyl, 2,2,2-trifluoroethyl, 2,2-dibromoethyl, 2,2,3,3-tetrafluoropropyl, 2-ethoxyethyl, 2-butoxyethyl, 2-nitropropyl, benzyl, 4-methylbenzyl, 4-tert-butylbenzyl, 4-methoxybenzyl, 4-nitrobenzyl, and 2,4-dichlorobenzyl.

[0058] Preferably, straight-chain or branched alkyl groups are used, and more preferably, straight-chain or branched alkyl groups with 1 to 8 carbon atoms are used.

[0059] Examples of aryl groups that have substituents, such as phenyl, p-tolyl, naphthyl, 6-methyl-2-naphthyl, anthracene, p-bromophenyl, p-nitrophenyl, p-methoxyphenyl, 2,4-dichlorophenyl, pentafluorophenyl, 2-aminophenyl, 2-methyl-4-chlorophenyl, 4-hydroxy-1-naphthyl, 4,5,8-trichloro-2-naphthyl, anthraquinone, and 2-aminoanthraquinone, are examples of aryl groups that have substituents.

[0060] Preferably, the aryl group or the aryl group at one position is replaced by a chlorine atom, a bromine atom or a nitro group, more preferably aryl, further preferably tolyl or phenyl, and especially preferably phenyl.

[0061] Examples of alkoxy groups that can have substituents include straight-chain or branched alkoxy groups such as methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, isobutoxy, tert-butoxy, neopentoxy, 2,3-dimethyl-3-pentoxy, n-hexoxy, n-octoxy, stearoxy, and 2-ethylhexoxy; trichloromethoxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, 2,2,3,3-tetrafluoropropoxy, 2,2-di(trifluoromethyl)propoxy, 2-ethoxyethoxy, 2-butoxyethoxy, 2-nitropropoxy, and benzyloxy.

[0062] Among them, straight-chain or branched alkoxy groups are preferred, and straight-chain or branched alkoxy groups with 1 to 8 carbon atoms are more preferred.

[0063] Examples of aryloxy groups that can have substituents include phenoxy, p-methylphenoxy, naphthoxy, anthrathoxy, p-nitrophenoxy, p-methoxyphenoxy, 2,4-dichlorophenoxy, pentafluorophenoxy, and 2-methyl-4-chlorophenoxy.

[0064] Among them, aryloxy or aryloxy with one position replaced by a chlorine atom, a bromine atom or a nitro group is preferred, aryloxy is more preferred, p-methylphenoxy or phenoxy is even more preferred, and phenoxy is particularly preferred.

[0065] Examples of cycloalkyl groups that can have substituents include cyclopentyl, cyclohexyl, adamantyl, and 2,5-dimethylcyclopentyl, 4-tert-butylcyclohexyl, etc.

[0066] Examples of heterocyclic groups that can have substituents include pyridyl, N-oxopyridyl, pyrazinyl, piperidinyl, pyranyl, morpholinyl, acridineyl, and other heterocyclic groups, as well as 3-methylpyridyl, N-methylpiperidinyl, N-methylpyrroleyl, and other heterocyclic groups with substituents.

[0067] Pyridyl or N-oxopyridyl is preferred.

[0068] Phthalocyanine pigments are not particularly limited as long as they are compounds represented by the above general formula (Pc) or dimers of such compounds. For example, M in the above formula... Pc For X Pc -Al (aluminum with trivalent oxidation state), X Pc In the case of Co (trivalent cobalt), Sn (divalent tin), or Fe (divalent iron), the phthalocyanine pigment is represented by the following structural formulas: (Al-Cl / Pc), (Al-F / Pc), (Al-Br / Pc), (Al-I / Pc), (Co-Cl / Pc), (Co-F / Pc), (Co-Br / Pc), (Co-I / Pc), (Sn / Pc), (Fe / Pc), (Al-OH / Pc), (Pc / Al-O-Al / Pc), (Co-OH / Pc), and (Pc / Co-O-Co / Pc). The phthalocyanine pigment of this embodiment is typically contained in the composition as a blue pigment.

[0069] [Chemistry 8]

[0070]

[0071] [Chemistry 9]

[0072]

[0073] The average particle size of the aforementioned pigments is not particularly limited and can be 1 nm or more, 3 nm or more, 5 nm or more, 10 nm or more, or 15 nm or more. Furthermore, the average particle size of the aforementioned pigments can be less than 100 nm, less than 75 nm, less than 45 nm, or less than 35 nm. By making the average particle size of the phthalocyanine pigment between 1 nm and 100 nm, the dispersibility of the phthalocyanine pigment can be improved, and chroma can be increased with a small amount added. In this embodiment, the average particle size refers to the crystallite diameter calculated based on the half-value width measured by powder X-ray diffraction.

[0074] There is no particular limitation on the content of the above-mentioned phthalocyanine pigment, but it is preferably 10 to 100% by mass relative to 100% of the total amount of the pigment, and more preferably 30 to 60% by mass.

[0075] In the composition of this embodiment, the pigment preferably comprises two selected from the group consisting of nickel azo complex pigments, quinacridone pigments, and phthalocyanine pigments of the above general formula (Pc) or dimers of such phthalocyanine pigments. By comprising two selected from the group consisting of nickel azo complex pigments, quinacridone pigments, and phthalocyanine pigments of the above general formula (Pc) or dimers of such phthalocyanine pigments, the pigment can achieve high infrared transmittance during color mixing, and while maintaining chroma in yellow-red, red-blue, or blue-yellow color mixing, it also provides a wider range of hues.

[0076] When the aforementioned pigments include both nickel azo complex pigments and quinacridone pigments, from the viewpoint of the aforementioned effects, the content of the nickel azo complex pigment is preferably 30-70% by mass, more preferably 40-60% by mass, relative to 100% of the total amount of the pigments. Furthermore, in this case, the content of the quinacridone pigment is preferably 30-70% by mass, more preferably 40-70% by mass, relative to 100% of the total amount of the pigments.

[0077] When the pigments described above include quinacridone pigments and phthalocyanine pigments, from the viewpoint of the aforementioned effects, the content of quinacridone pigments relative to 100% by mass is preferably 30-70% by mass, more preferably 40-60% by mass. Furthermore, in this case, the content of phthalocyanine pigments relative to 100% by mass is preferably 30-70% by mass, more preferably 40-60% by mass.

[0078] When the pigments described above include the phthalocyanine pigment and the nickel azo complex pigment, the content of the phthalocyanine pigment is preferably 30 to 70% by mass, more preferably 40 to 60% by mass, relative to 100% by mass of the total amount of the pigments. Furthermore, in this case, the content of the nickel azo complex pigment is preferably 30 to 70% by mass, more preferably 40 to 60% by mass, relative to 100% by mass of the total amount of the pigments.

[0079] Furthermore, the aforementioned pigment may comprise three types selected from the group consisting of nickel azo complex pigments, quinacridone pigments, and phthalocyanine pigments represented by the aforementioned general formula (Pc), or dimers of such phthalocyanine pigments. In this case, high infrared transmittance can also be ensured during color matching.

[0080] (Other pigments)

[0081] The pigment in this embodiment is based on the specific pigment described above, and may contain one or more other pigments different from the specific pigment described above. Examples of other pigments include phthalocyanine pigments other than those shown in the general formula (Pc) or dimers of such phthalocyanine pigments. Examples of other phthalocyanine pigments include compounds shown in formula (8) below.

[0082] [Chemistry 10]

[0083]

[0084] The average particle size of other pigments is not particularly limited and can be 1 nm or more, 3 nm or more, 5 nm or more, 10 nm or more, or 15 nm or more. Furthermore, the average particle size of the aforementioned pigments can be less than 100 nm, less than 75 nm, less than 45 nm, or less than 35 nm. By making the average particle size of the phthalocyanine pigment between 1 nm and 100 nm, the dispersibility of the phthalocyanine pigment can be improved, and chroma can be increased with a small amount added. In this embodiment, the average particle size refers to the crystallite diameter calculated based on the half-value width measured by powder X-ray diffraction.

[0085] [Resin]

[0086] The resin is not particularly limited, but is preferably one or more selected from the group consisting of polyethylene terephthalate (PET) resin, polycarbonate (PC) resin, acrylonitrile styrene (AS) resin, polymethyl methacrylate (PMMA) resin, acrylonitrile / butadiene / styrene (ABS) copolymer resin, polyamide (PA) resin, and amino alkyd resin. When the composition is used for molded articles, from the viewpoint of heat resistance and impact resistance, any one or both of polyethylene terephthalate (PET) resin and polycarbonate (PC) resin are more preferred.

[0087] The melting point of the resin is preferably 150~350℃, more preferably 200~300℃.

[0088] Regarding the melting point of the resin in this embodiment, approximately 5 mg of resin was placed in an AL (aluminum) dish and placed on the sample stage of a thermogravimetric differential thermal analysis apparatus (TG-DTA, manufactured by Hitachi High Technology Corporation). The temperature was gradually increased from 30°C to 400°C for measurement. The melting point was defined as the temperature from the point at which the sample began to melt to the point at which it was completely melted.

[0089] The use of the composition in this embodiment is not particularly limited; for example, compositions for molded articles or compositions for coatings can be cited.

[0090] The resin content in the composition can be appropriately determined according to the intended use of the composition.

[0091] For example, in a composition for molding, the amount of pigment is preferably 5,000 to 50,000 parts by mass, more preferably 5,000 to 15,000 parts by mass, relative to 10 parts by mass of the total amount of pigment.

[0092] For example, in a coating composition, the amount of pigment is preferably 50 to 500 parts by mass, more preferably 50 to 100 parts by mass, relative to 10 parts by mass of the total amount of the pigment.

[0093] It should be noted that the so-called "total amount of pigment," for example, even if the purity of the pigment is 90%, refers to the weight of the pigment itself, not the weight considering its purity.

[0094] [Dispersing agent]

[0095] When dispersing nickel azo complex pigments, quinacridone pigments, and / or phthalocyanine pigments in a composition, dispersing aids such as pigment derivatives and surfactants may be appropriately used. By using dispersing aids, the chroma of the molded article can be further improved, and the hue can be further broadened.

[0096] As a pigment derivative, there are no particular limitations; examples include compounds in which a basic substituent, an acidic substituent, or a phthalimide methyl group that may have a substituent are introduced into an organic pigment, anthraquinone, acridinone, or triazine.

[0097] As surfactants, there are no particular limitations, but examples include sodium lauryl sulfate, polyoxyethylene alkyl ether sulfates, sodium dodecylbenzene sulfonate, alkali salts of styrene-acrylic acid copolymers, sodium stearate, sodium alkylnaphthalene sulfonate, sodium alkyl diphenyl ether disulfonate, monoethanolamine lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, monoethanolamine stearate, monoethanolamine of styrene-acrylic acid copolymers, and anionic surfactants such as polyoxyethylene alkyl ether phosphates; nonionic surfactants such as polyoxyethylene oil-based ethers, polyoxyethylene lauryl ethers, polyoxyethylene nonylphenyl ethers, polyoxyethylene alkyl ether phosphates, polyoxyethylene sorbitan monostearate, and polyethylene glycol monolaurate; cationic surfactants such as alkyl quaternary ammonium salts or their ethylene oxide adducts; alkyl betaines such as alkyl dimethylaminoacetic acid betaine; and amphoteric surfactants such as alkyl imidazolines. They can be used alone or in combination of two or more.

[0098] [Other ingredients]

[0099] The composition of this embodiment may contain antioxidants and release agents as additives.

[0100] Examples of antioxidants include triethylene glycol-bis[3-(3-tert-butyl-5-methyl-4-hydroxyphenyl)propionate], 1,6-hexanediol-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], pentaerythritol-tetra[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, and 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxyphenyl)propionate. Butyl-4-hydroxybenzyl)benzene, N,N-hexamethylenebis(3,5-di-tert-butyl-4-hydroxy-hydrogenated cinnamamide), 3,5-di-tert-butyl-4-hydroxy-benzylphosphonate diethyl ester, tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, and 3,9-bis{1,1-dimethyl-2-[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]ethyl}-2,4,8,10-tetraoxaspiro(5,5)undecane, etc.

[0101] As a release agent, it is preferable that it is composed of esters of alcohols and fatty acids at least 90% by mass. Specifically, examples of esters of alcohols and fatty acids include esters of monohydric alcohols and fatty acids, and partial or complete esters of polyhydric alcohols and fatty acids. Among the aforementioned esters of monohydric alcohols and fatty acids, esters of monohydric alcohols with 1 to 20 carbon atoms and saturated fatty acids with 10 to 30 carbon atoms are preferred. Furthermore, among the partial or complete esters of polyhydric alcohols and fatty acids, partial or complete esters of polyhydric alcohols with 1 to 25 carbon atoms and saturated fatty acids with 10 to 30 carbon atoms are preferred.

[0102] Specifically, examples of esters of monohydric alcohols and saturated fatty acids include stearate, palmitate, butyl stearate, methyl laurate, and isopropyl palmitate. Examples of partial or full esters of polyhydric alcohols and saturated fatty acids include monoglycerides of stearate, diglycerides of stearate, triglycerides of stearate, monosorbate of stearate, monoglycerides of behenic acid, monoglycerides of decanoate, monoglycerides of laurate, pentaerythritol monostearate, pentaerythritol tetrastearate, pentaerythritol tetranonanoate, propylene glycol monostearate, biphenyl ester, sorbitan monostearate, 2-ethylhexyl stearate, and dipentaerythritol hexastearate, among other full or partial esters of dipentaerythritol.

[0103] Furthermore, in the composition of this embodiment, processing stabilizers, ultraviolet absorbers, flow modifiers, crystal nucleating agents, reinforcing agents, dyes, antistatic agents, bluing agents, antibacterial agents, etc., may be added as other additives.

[0104] <Method for manufacturing the composition>

[0105] The composition of this embodiment is prepared by mixing one or more phthalocyanine pigments, including nickel azo complex pigments, quinacridone pigments, compounds containing the above general formula (Pc) or dimers of such compounds, with a resin.

[0106] The method for manufacturing the composition is not limited to the above. For example, it may include a step of mixing one or more phthalocyanine pigments, such as nickel azo complex pigments, quinacridone pigments, compounds containing the above general formula (Pc), or dimers of such compounds, to obtain a pigment mixture, and a step of mixing the pigment mixture with a resin to obtain the composition. Furthermore, without departing from the spirit of the invention, other steps may be included before the step of obtaining the pigment mixture, between the step of obtaining the pigment mixture and the step of obtaining the composition, and / or after the step of obtaining the composition.

[0107] <Molded Body>

[0108] The molded body of this embodiment is formed by molding the above-described molded body using the composition. The molding method is not particularly limited, and injection molding, extrusion molding, blow molding, compression molding, vacuum forming, etc., can be used. For example, if manufacturing a three-dimensional product, injection molding can be used; if manufacturing a sheet-like product, in addition to extrusion molding, planar pressing, etc., can also be used. If manufacturing a film-like product, in addition to melt extrusion, solution casting can be used. When using melt molding methods, examples include blow molding, casting, extrusion lamination, calendering, sheet molding, fiber molding, blow molding, injection molding, rotational molding, coating molding, etc. Furthermore, in the case of resins cured with active energy rays, various curing methods employing active energy rays can be used to manufacture the cured product. In particular, when thermosetting resin is used as the main component of the matrix resin, examples include molding methods that involve prepreg of the molding material and pressurizing and heating it using a stamping or autoclave. Other examples include RTM (Resin Transfer Molding), VaRTM (Vacuum Assist Resin Transfer Molding), lamination molding, and hand lay-up molding.

[0109] <Infrared transmittance>

[0110] The infrared transmittance of the molded body at a wavelength of 900 nm in this embodiment is not particularly limited, but is preferably 60% or more, more preferably 70% or more, and even more preferably 80% or more. More specifically, it is preferably 60-90%, and more preferably 80-90%. By making the infrared transmittance of the molded body at a wavelength of 900 nm 60% or more, infrared light is transmitted better, and the sensing accuracy can be further improved.

[0111] <Heat resistance>

[0112] In the molded body of this embodiment, CIE-L is used. a b L in the color system a and b The color difference ΔE is calculated according to the following formula (A). The ab value is preferably less than 3, more preferably 0.05~2.5, and even more preferably 0.075~1.5. This is achieved by making the color difference ΔE... With an ab value less than 3, it exhibits minimal color change due to light irradiation across a wavelength range from ultraviolet to infrared, demonstrates high thermal stability, and achieves excellent heat resistance.

[0113] ΔE ab=[(ΔL ) 2 +(Δa ) 2 +(Δb ) 2 ] 1 / 2 ···(A)

[0114] In equation (A), ΔL =L1 -L0 , Δa =a1 -a0 , Δb =b1 -b0 L0 a0 and b0 L1 represents the chromatic coordinates of the shaped body before xenon lamp irradiation. a1 and b1 The color coordinates of the molded object after being irradiated by a xenon lamp.

[0115] <Device>

[0116] The device in this embodiment is not particularly limited as long as it has the above-described molded body; a typical example is a sensor. The application of the sensor is not particularly limited; for example, it can be used in remote sensing methods such as LiDAR. Examples of sensors used in remote sensing include near-infrared (NIR) sensors for vehicles' ADAS / AD systems.

[0117] Figure 2 This is a schematic diagram illustrating an example of a device comprising a molded body formed by molding the molded body of the present invention using a composition. In this device, a LiDAR is typically employed.

[0118] exist Figure 2 In the device 10, there are a reflector 11 and a light sensor 12, which are formed by molding the above-mentioned molded body with a composition.

[0119] The reflector 11 allows light of a specific wavelength from the light L emitted by the light source LS to pass through. For example, the reflector 11 blocks visible light L1 from the light L emitted by the light source LS, while allowing infrared light L2 to pass through. As a result, the sensing accuracy and stability of the optical sensor 12 can be improved, and the reliability of the device 10 can be enhanced.

[0120] Example

[0121] The following describes embodiments of the present invention. The present invention is not limited to these embodiments.

[0122] (Examples 1-11)

[0123] [Preparation of Compositions for Molded Components]

[0124] A pigment mixture was prepared by mixing phthalocyanine pigment, nickel azo complex pigment, and quinacridone pigment in the molar ratios described in Table 1. Next, 10,000 parts by weight of resin were added to 10 parts by weight of the pigment mixture, and the mixture was further mixed to obtain a composition for molding. The nickel azo complex pigment, quinacridone pigment, phthalocyanine pigment, and resin used in each embodiment are shown below. Furthermore, the purity of each pigment and resin is approximately 100%.

[0125] (Nickel azo complex pigment)

[0126] • Ni-AC-1

[0127] Average particle size: 20 nm, molecular weight: 338.85

[0128] Product Name: Pigment Yellow 150

[0129] Manufacturer: DIC Corporation

[0130] [Chemistry 11]

[0131]

[0132] (Quinacridone pigment)

[0133] • Qu-1

[0134] Average particle size: 11 nm, molecular weight: 381.21

[0135] Product Name: Pigment Red 209

[0136] Manufacturer: DIC Corporation

[0137] [Chemistry 12]

[0138]

[0139] (Phthalocyanine pigment)

[0140] • Aluminum phthalocyanine pigment (Al-Cl / Pc)

[0141] Average particle size: 13 nm, M Pc Al, X Pc Cl, molecular weight: 574.97

[0142] Product Name: PB79

[0143] Manufacturer: Joint Venture Meilida Pigment Industry Co., Ltd.

[0144] [Chemistry 13]

[0145]

[0146] Molecular weight: 574.97

[0147] (resin)

[0148] • Polycarbonate resin (PC-1)

[0149] Product Name: Panlite L-1225Z

[0150] Manufacturer: Teijin Co., Ltd.

[0151] Melting point: 221-242℃

[0152] Weight-average molecular weight (Mw): 21600

[0153] In the structural formula, n represents a non-zero integer.

[0154] [Chemistry 14]

[0155]

[0156] • Polyethylene terephthalate resin (PET-1)

[0157] Product Name: Mitsui PET J125

[0158] Manufacturer: Mitsui Chemicals Co., Ltd.

[0159] Melting point: 251-262℃

[0160] Viscosity (IV): 0.76 dl / g

[0161] In the structural formula, n represents a non-zero integer.

[0162] [Chemistry 15]

[0163]

[0164] • Polyethylene terephthalate resin (PET-2)

[0165] Product Name: Mitsui PET J135

[0166] Manufacturer: Mitsui Chemicals Co., Ltd.

[0167] Melting point: 251-263℃

[0168] Viscosity (IV): 0.85 dl / g

[0169] In the structural formula, n represents a non-zero integer.

[0170] [Chemistry 16]

[0171]

[0172] [Making the Molded Object]

[0173] The compositions for molding bodies obtained in each embodiment were fed into an injection molding machine (manufactured by Nissei Resin Kogyo Co., Ltd., device name "PNX60III-5A") and injection molded under the following two conditions to obtain rectangular parallelepiped molded bodies 1 and 2.

[0174] • Molded body 1

[0175] Molding temperature: 280℃

[0176] Detention time: 0 minutes

[0177] Dimensions: Length 5cm, Width 4cm, Height 2mm

[0178] • Molded body 2

[0179] Molding temperature: 280℃

[0180] Detention time: 10 minutes

[0181] Dimensions: Length 5cm, Width 4cm, Height 2mm

[0182] (Comparative Example 1)

[0183] Except that the copper phthalocyanine pigment shown below is used instead of the aluminum phthalocyanine pigment, the same composition for molding and the molded body are obtained as in Example 1.

[0184] • Copper phthalocyanine pigment (Cu / Pc)

[0185] Average particle size: 22 nm, M: Cu, Molecular weight: 576.08

[0186] Product Name: FASTGEN BLUE PA5380

[0187] Manufacturer: DIC Corporation

[0188] [Chemistry 17]

[0189]

[0190] Molecular weight: 576.08

[0191] The molded articles obtained in the above embodiments and comparative examples were measured and evaluated using the following methods.

[0192] Infrared transmittance

[0193] The infrared transmittance of molded body 1 was measured using a spectrophotometer (manufactured by Nippon Spectrophotometer Co., Ltd., device name "V-770"). As an auxiliary device, an integrating sphere (manufactured by Nippon Spectrophotometer Co., Ltd., device name "ISN-923") was used to measure the range of 300nm-2500nm in 2nm increments. If the infrared transmittance is 60% or higher, it indicates good infrared transmittance; the higher the infrared transmittance value, the higher the infrared transmittance.

[0194] [Heat resistance]

[0195] Using a spectrophotometer (SUNCOLOR, device name "Datacolor 650"), the colorimetric values ​​of molded body 1 and molded body 2 were determined. Then, ΔE was calculated using the above formula (A). ab(=colorimetric value of molded body 2 - colorimetric value of molded body 1). If ΔE An ab value less than 3 indicates good heat resistance, ΔE A smaller ab value indicates less color change, which can be interpreted as high heat resistance. The results are shown in Table 1 and... Figure 1 Additionally, the colorimetric values ​​(a) recorded in Table 1 and b ) is the colorimetric value of molded body 1.

[0196] [Table 1]

[0197]

[0198] As shown in Table 1, in Examples 1-11, the infrared transmittance at a wavelength of 900 nm is above 60%, and ΔE It has an ab value of less than 3, excellent infrared transmission, and good heat resistance.

[0199] In addition, such as Figure 1 As shown, it was confirmed that in Examples 2-3, 5-6, and 8-11, chroma was maintained while hue expansion was achieved in color mixing of yellow and red, red and blue, or blue and yellow. In particular, in Examples 2, 4, 6, 9, and 11, it was confirmed that the pigment contained a specified phthalocyanine pigment, and further hue expansion was achieved in color mixing of red and blue or blue and yellow.

[0200] On the other hand, in Comparative Example 1, the pigment consisted only of copper phthalocyanine pigment, and the infrared transmittance at a wavelength of 900 nm was 55%, which was poor.

[0201] Explanation of reference numerals in the attached figures

[0202] 10: Device, 11: Reflector, 12: Optical sensor.

Claims

1. A composition comprising a pigment and a resin, The pigment contains one or more selected from the group consisting of nickel azo complex pigments, quinacridone pigments, and phthalocyanine pigments or dimers of the following general formula (Pc). [Chemistry 1] In the formula, M Pc X represents Pc -Al、X Pc -Co, Sn, or Fe, where, Al is trivalent aluminum, Co is trivalent cobalt, Sn is divalent tin, and Fe is divalent iron. X Pc This represents a hydroxyl group, fluorine atom, chlorine atom, bromine atom, iodine atom, or -OP (=O)R. 1 R 2 -OC(=O)R 3 -OSO2R 4 , R 1 R 2 Each of these can independently represent a hydrogen atom, a hydroxyl group, an alkyl group that may have substituents, an aryl group that may have substituents, an alkoxy group that may have substituents, or an aryloxy group that may have substituents. R 1 R 2 They can bond together to form a ring. R 3 The groups can represent hydrogen atoms, alkyl groups that may have substituents, cycloalkyl groups that may have substituents, aryl groups that may have substituents, or heterocyclic groups that may have substituents. R 4 It represents a hydroxyl group, an alkyl group that may have substituents, an aryl group that may have substituents, or a heterocyclic group that may have substituents.

2. The composition according to claim 1, wherein, The average particle size of the pigment is greater than 1 nm and less than 100 nm.

3. The composition according to claim 1, wherein, The resin is selected from the group consisting of PET (polyethylene terephthalate resin), PC (polycarbonate resin), AS (acrylonitrile styrene resin), PMMA (polymethyl methacrylate resin), ABS (acrylonitrile / butadiene / styrene copolymer resin), PA (polyamide resin), and amino alkyd resin.

4. The composition according to any one of claims 1 to 3, wherein, The composition is a composition for molding or a composition for coating.

5. A molded body formed by molding the molded body of claim 4 with a composition.

6. The molded article according to claim 5, wherein, The molded body has an infrared transmittance of over 60% at 900 nm.

7. A device comprising the molded body of claim 5.

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