Compositions, molded articles, and devices

Abstract

The present invention provides a composition, molded article, and device that achieve both excellent infrared transmission and good heat resistance, thereby improving sensing accuracy and achieving excellent sensing stability. [Solution] 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 general formula (Pc), or dimers of said phthalocyanine pigments.

Description

[Technical Field]

[0001] The present invention relates to compositions, molded articles, and devices. [Background technology]

[0002] Traditionally, infrared cameras and infrared sensors visualize the infrared radiation emitted from an object in response to its temperature changes, and they offer greater operational stability in dark environments compared to detection using visible light. Infrared cameras and infrared sensors are widely used in medical diagnostics, non-destructive testing to detect deterioration in buildings and electrical equipment, night vision cameras in the security sector, and personal authentication such as biometric authentication cameras in ATMs at financial institutions and airports.

[0003] LiDAR (Light Detection And Ranging) is a remote sensing method that measures distance by irradiating an object with near-infrared, visible light, or ultraviolet light and detecting the reflected light with an optical sensor. In vehicles, near-infrared (NIR) sensors are used. Currently, LiDAR is used complementarily in adaptive cruise control and other applications installed in vehicles, but there is a great demand expected for it in advanced driver-assistance systems (ADAS) and future autonomous driving (AD), and advanced LiDAR is needed to promote ADAS / AD.

[0004] Optical glass or optical resins are used as materials for optical components such as cameras and sensors mentioned above. Among these, thermoplastic resin compositions containing high refractive index materials and optical lenses using such resin compositions are materials that cut visible light and transmit infrared light. For example, Patent Document 1 proposes a thermoplastic resin composition containing a thermoplastic resin and a colorant, wherein the refractive index at a wavelength of 894 nm is 1.60 or higher, and in the case of a 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 or equal to 1.00%, and the average transmittance at wavelengths of 840 nm to 940 nm is 80% or higher.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Conventionally, copper phthalocyanine has been mainly used as a blue pigment, but there is a problem that the infrared transmittance is low. Since the central metal of most of the phthalocyanine pigments distributed in the market is copper, it is difficult to ensure high infrared transmittance when mixing with other colors, and a blue pigment for color mixing with high infrared transmittance is required. Similarly to the above, red and yellow pigments with high infrared transmittance are also required.

[0007] In the above prior art, although it is described that noise derived from visible light is reduced by setting the maximum value of the visible light transmittance and the average infrared transmittance within the above range, there is no mention of the infrared transmittance and heat resistance of a resin composition containing any one or more of phthalocyanine pigments such as aluminum phthalocyanine pigment, nickel azo complex and quinacridone pigment, and resin, and there is still room for improvement.

[0008] An object of the present invention is to provide a composition, a molded body, and a device that can achieve both excellent infrared transmission and good heat resistance, and can improve sensing accuracy and excellent sensing stability.

Means for Solving the Problems

[0009] As a result of intensive research, the inventors of the present invention have found that when any one or a plurality of nickel azo complexes, quinacridone pigments, and a predetermined phthalocyanine pigment are added to a resin, infrared rays can be transmitted well, and in addition, good heat resistance can be achieved. As a result, the sensing accuracy is improved, and excellent sensing can be stably realized.

[0010] That is, the present invention provides the following configuration. [1] A composition containing a pigment and a resin, wherein the pigment is a nickel azo complex pigment, a quinacridone pigment, and the following general formula (Pc) [Chemical formula] (wherein M Pc represents X Pc -Al (trivalent aluminum), X Pc -Co (trivalent cobalt), Sn (divalent tin), or Fe (divalent iron), X Pc represents a hydroxyl group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or -O-P(=O)R 1 R 2 , -O-C(=O)R 3 , -OSO2R 4 , R 1 , R 2 each independently represents a hydrogen atom, a hydroxyl group, an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkoxyl group which may have a substituent, or an aryloxy group which may have a substituent, R 1 , R 2 may be bonded to each other to form a ring, R 3 represents a hydrogen atom, an alkyl group which may have a substituent, a cycloalkyl group which may have a substituent, an aryl group which may have a substituent, or a heterocyclic group which may have a substituent, R 4(This represents a hydroxyl group, an optionally substituted alkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group.) A composition comprising one or more phthalocyanine pigments represented by or dimers of said phthalocyanine pigments, selected from the group consisting of said phthalocyanine pigments.

[0011] [2] The composition according to [1] above, wherein the average particle size of the pigment is 1 nm or more and 100 nm or less.

[0012] [3] The composition according to [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.

[0013] [4] The composition according to any one of the above [1] to [3], wherein the composition is a composition for a molded article or a composition for a coating.

[0014] [5] A molded article obtained by molding the molded article composition described in [4] above.

[0015] [6] The molded article according to [5] above, wherein the infrared transmittance of the molded article at 900 nm is 60% or more.

[0016] [7] A device comprising the molded body described in [5] or [6] above. [Effects of the Invention]

[0017] According to the present invention, it is possible to provide compositions, molded articles, and devices that achieve both excellent infrared transmission and good heat resistance, thereby improving sensing accuracy and achieving excellent sensing stability. [Brief explanation of the drawing]

[0018] [Figure 1]Figure 1 is an a*b* color space chromaticity diagram showing the a* and b* values ​​in the CIE-L*a*b* color system of the molded articles obtained in the examples and comparative examples, with the results plotted. [Figure 2] This is a schematic diagram showing an example of a device comprising a molded body obtained by molding the molded body composition of the present invention. [Modes for carrying out the invention]

[0019] The embodiments of the present invention will be described below. The present invention is not limited to the embodiments described below.

[0020] <Composition> The composition according to this embodiment is 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 said phthalocyanine pigments.

[0021] [Pigments] (Nickel azo complex pigment) The nickel azo complex pigment is not particularly limited, but may contain, for example, a compound represented by the following formula (1). The nickel azo complex pigment may contain the compound represented by the following formula (1), or may consist of the compound represented by the following formula (1). The nickel azo complex pigment of this embodiment is typically included in the composition as a yellow pigment.

[0022] [ka] (1)

[0023] The content of the nickel azo complex pigment is not particularly limited, but is preferably 10 to 100% by mass, and more preferably 30 to 60% by mass, based on 100% by mass of the total amount of the pigment.

[0024] (Quinacridone pigment) The quinacridone pigment is not particularly limited, but contains, for example, at least one compound represented by the following formulas (2) to (7). The quinacridone pigment of this embodiment is typically included in the composition as a red pigment.

[0025] [ka]

[0026] [ka]

[0027] [ka]

[0028] [ka]

[0029] The content of the above-mentioned quinacridone pigment is not particularly limited, but is preferably 10 to 100% by mass, and more preferably 30 to 60% by mass, based on 100% by mass of the total amount of the above-mentioned pigment.

[0030] The quinacridone pigment may consist of at least two selected from the three specific isomers represented by formulas (2) to (4) above (such as R209), or it may consist of the three specific isomers mentioned above.

[0031] (Phthalocyanine pigment) Phthalocyanine pigments contain one or more compounds represented by the following general formula (Pc) or dimers of said compounds. Hereinafter, "phthalocyanine pigments represented by the general formula (Pc) or dimers of said phthalocyanine pigments" will also be simply referred to as phthalocyanine pigments.

[0032] [ka] (In the formula, M Pc X Pc -Al (trivalent aluminum), X Pc - Represents Co (trivalent cobalt), Sn (divalent tin), or Fe (divalent iron), X Pc This is a hydroxyl group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or -OP(=O)R 1 R 2 -OC(=O)R 3 , -OSO2R 4 This represents, R 1 , R 2 Each of these independently represents a hydrogen atom, a hydroxyl group, an optionally substituted alkyl group, an optionally substituted aryl group, an optionally substituted alkoxy group, or an optionally substituted aryloxy group. R 1 , R 2 However, they may also bond to each other to form a ring. R 3 This represents a hydrogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group. R 4 (This represents a hydroxyl group, an optionally substituted alkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group.)

[0033] Examples of alkyl groups that may have substituents include linear or branched alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, neopentyl, n-hexyl, n-octyl, stearyl, and 2-ethylhexyl groups, as well as alkyl groups having substituents such as 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 groups. Of these, linear or branched alkyl groups are preferred, and linear or branched alkyl groups having 1 to 8 carbon atoms are more preferred.

[0034] Examples of "aryl groups that may have substituents" include aryl groups such as phenyl group, p-tolyl group, naphthyl group, 6-methyl-2-naphthyl group, and anthuryl group, as well as substituent aryl groups such as p-bromophenyl group, p-nitrophenyl group, p-methoxyphenyl group, 2,4-dichlorophenyl group, pentafluorophenyl group, 2-aminophenyl group, 2-methyl-4-chlorophenyl group, 4-hydroxy-1-naphthyl group, 4,5,8-trichloro-2-naphthyl group, anthraquinonyl group, and 2-aminoanthraquinonyl group. Of these, an aryl group or an aryl group substituted with one chlorine atom, bromine atom, or nitro group is preferred, an aryl group is more preferred, a tolyl group or a phenyl group is even more preferred, and a phenyl group is particularly preferred.

[0035] Examples of substituted alkoxy groups include linear or branched alkoxy groups such as methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, isobutoxy, tert-butoxy, neopentyloxy, 2,3-dimethyl-3-pentyloxy, n-hexyloxy, n-octyloxy, stearyloxy, and 2-ethylhexyloxy groups, as well as substituted alkoxy groups such as trichloromethoxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, 2,2,3,3-tetrafluoropropoxy, 2,2-ditrifluoromethylpropoxy, 2-ethoxyethoxy, 2-butoxyethoxy, 2-nitropropoxy, and benzyloxy groups. Of these, linear or branched alkoxyl groups are preferred, and linear or branched alkoxyl groups having 1 to 8 carbon atoms are more preferred.

[0036] Examples of aryloxy groups that may have substituents include aryloxy groups such as phenoxy, p-methylphenoxy, naphthyloxy, and anthuryloxy groups, and aryloxy groups having substituents such as p-nitrophenoxy, p-methoxyphenoxy, 2,4-dichlorophenoxy, pentafluorophenoxy, and 2-methyl-4-chlorophenoxy groups. Of these, an aryloxy group or an aryloxy group substituted with one chlorine atom, bromine atom, or nitro group is preferred, an aryloxy group is more preferred, a p-methylphenoxy group or a phenoxy group is even more preferred, and a phenoxy group is particularly preferred.

[0037] Examples of cycloalkyl groups that may have substituents include cycloalkyl groups such as cyclopentyl, cyclohexyl, and adamantyl groups, and cycloalkyl groups having substituents such as 2,5-dimethylcyclopentyl and 4-tert-butylcyclohexyl groups.

[0038] Examples of heterocyclic groups in "heterocyclic groups that may have substituents" include heterocyclic groups such as pyridyl group, N-oxopyridyl group, pyrazyl group, piperidino group, pyranyl group, morpholino group, and acridinyl group, as well as heterocyclic groups having substituents such as 3-methylpyridyl group, N-methylpiperidyl group, and N-methylpyrrolyl group. Of these, a pyridyl group or an N-oxopyridyl group is preferred.

[0039] The phthalocyanine pigment is not particularly limited as long as it is a compound represented by the above general formula (Pc) or a dimer of said compound, for example, M in the above formula. Pc However, X Pc -Al (trivalent aluminum), X Pc When the phthalocyanine pigment is -Co (trivalent cobalt), Sn (divalent tin), or Fe (divalent iron), it 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), (Pc / Co-O-Co / Pc). The phthalocyanine pigment of this embodiment is typically included in a composition as a blue pigment.

[0040] [ka]

[0041] [ka]

[0042] The average particle size of the above pigment is not particularly limited, but may 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 above pigment may be 100 nm or less, 75 nm or less, 45 nm or less, or 35 nm or less. By having an average particle size of 1 nm or more and 100 nm or less for the phthalocyanine pigment, the dispersibility of the phthalocyanine pigment can be improved, and the saturation can be improved with a small amount of additive. In this embodiment, the average particle size refers to the crystallite diameter calculated from the full width at half maximum measured by powder X-ray diffraction.

[0043] The content of the phthalocyanine pigment is not particularly limited, but is preferably 10 to 100% by mass, and more preferably 30 to 60% by mass, based on 100% by mass of the total amount of the pigment.

[0044] In the composition of this embodiment, it is preferable that the pigment includes two selected from the group consisting of nickel azo complex pigment, quinacridone pigment, and phthalocyanine pigment represented by the general formula (Pc) or a dimer of the phthalocyanine pigment. By including two selected from the group consisting of nickel azo complex pigment, quinacridone pigment, and phthalocyanine pigment represented by the general formula (Pc) or a dimer of the phthalocyanine pigment, high infrared transmission can be achieved during color mixing, while maintaining saturation and providing a broad range of hues in mixing yellow and red, red and blue, or blue and yellow.

[0045] When the above pigment includes a nickel azo complex pigment and a quinacridone pigment, the content of the nickel azo complex pigment is preferably 30 to 70% by mass, more preferably 40 to 60% by mass, based on 100% by mass of the total amount of the above pigment, from the viewpoint of the above effects. In this case, the content of the quinacridone pigment is preferably 30 to 70% by mass, more preferably 40 to 70% by mass, based on 100% by mass of the total amount of the above pigment.

[0046] When the above pigment includes quinacridone pigment and phthalocyanine pigment, the content of quinacridone pigment is preferably 30 to 70% by mass, more preferably 40 to 60% by mass, based on 100% by mass of the total amount of the above pigment, from the viewpoint of the above effects. In this case, the content of phthalocyanine pigment is preferably 30 to 70% by mass, more preferably 40 to 60% by mass, based on 100% by mass of the total amount of the above pigment.

[0047] When the above pigment includes the above phthalocyanine pigment and nickel azo complex pigment, the content of the phthalocyanine pigment is preferably 30 to 70% by mass, more preferably 40 to 60% by mass, based on 100% by mass of the total amount of the above pigment. In this case, the content of the nickel azo complex pigment is also preferably 30 to 70% by mass, more preferably 40 to 60% by mass, based on 100% by mass of the total amount of the above pigment.

[0048] Furthermore, the above pigment may include three types selected from the group consisting of nickel azo complex pigment, quinacridone pigment, and phthalocyanine pigment represented by the above general formula (Pc) or a dimer of said phthalocyanine pigment. In this case as well, high infrared transmission can be ensured during color matching.

[0049] (Other pigments) The pigment of this embodiment may contain, on the premise that it contains the specific pigment described above, one or more other pigments different from the specific pigment described above. Examples of other pigments include phthalocyanine pigments other than the phthalocyanine pigment represented by the general formula (Pc) described above or dimers of said phthalocyanine pigment. Examples of other phthalocyanine pigments include compounds represented by the following formula (8).

[0050] [ka]

[0051] The average particle size of the other pigments is not particularly limited, but may 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 above pigments may be 100 nm or less, 75 nm or less, 45 nm or less, or 35 nm or less. By having an average particle size of 1 nm or more and 100 nm or less for the phthalocyanine pigment, the dispersibility of the phthalocyanine pigment can be improved, and the saturation can be improved with a small amount of additive. In this embodiment, the average particle size refers to the crystallite diameter calculated from the full width at half maximum measured by powder X-ray diffraction.

[0052] [resin] The resin is not particularly limited, but it 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 in a molded article, polyethylene terephthalate (PET) resin, polycarbonate (PC) resin, or both are more preferred from the viewpoint of heat resistance and impact resistance.

[0053] The melting point of the resin is preferably 150 to 350°C, more preferably 200 to 300°C. In this embodiment, the melting point of the resin is determined by placing approximately 5 mg of the resin in an aluminum (AL) pan, placing it on the sample stage of a thermogravimetric differential thermal analyzer (TG-DTA, manufactured by Hitachi High-Tech Science Corporation), and gradually increasing the temperature from 30°C to 400°C. The melting point is defined as the temperature from when the sample began to melt until it was completely melted.

[0054] The use of the composition of this embodiment is not particularly limited, but examples include compositions for molded articles or compositions for coatings. The resin content in the composition can be appropriately determined depending on the intended use of the composition. For example, in a composition for molded articles, the amount of the above-mentioned 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 the pigment. For example, in a paint composition, the amount of the 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. Note that "total amount of pigment" refers to the mass of the pigment itself, even if its purity is 90%, and does not take purity into account.

[0055] [Dispersing agent] 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 used as appropriate. By using dispersing aids, the saturation of the molded product can be further enhanced, and the range of hue can be broadened. Examples of pigment derivatives, though not particularly limited, include compounds obtained by introducing a basic substituent, an acidic substituent, or an optionally substituted phthalimidomethyl group to an organic pigment, anthraquinone, acridone, or triazine. Examples of surfactants, though not particularly limited, include anionic surfactants such as sodium lauryl sulfate, polyoxyethylene alkyl ether sulfate, sodium dodecylbenzenesulfonate, alkali salts of styrene-acrylic acid copolymers, sodium stearate, sodium alkylnaphthalenesulfonate, sodium alkyldiphenyl ether disulfonate, monoethanolamine lauryl sulfate, triethanolamine lauryl sulfate, ammonium lauryl sulfate, monoethanolamine stearate, monoethanolamine of styrene-acrylic acid copolymer, and polyoxyethylene alkyl ether phosphate esters; nonionic surfactants such as polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonylphenyl ether, polyoxyethylene alkyl ether phosphate esters, polyoxyethylene sorbitan monostearate, and polyethylene glycol monolaurate; cationic surfactants such as alkyl quaternary ammonium salts and their ethylene oxide adducts; alkyl betaines such as alkyldimethylaminoacetic acid betaine; and amphoteric surfactants such as alkylimidazolines. These can be used individually or in combination of two or more.

[0056] [Other ingredients] The composition of this embodiment may include an antioxidant and a mold release agent as additives. 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-tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert- Examples include butyl-4-hydroxybenzyl)benzene, N,N-hexamethylenebis(3,5-di-tert-butyl-4-hydroxy-hydrocinnamide), 3,5-di-tert-butyl-4-hydroxybenzylphosphonate-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.

[0057] As a mold release agent, it is preferable that 90% or more by mass consists of an ester of an alcohol and a fatty acid. Specifically, examples of esters of alcohol and fatty acids include esters of monohydric alcohols and fatty acids, and partial or total esters of polyhydric alcohols and fatty acids. As the above monohydric alcohol and fatty acid ester, an ester of a monohydric alcohol having 1 to 20 carbon atoms and a saturated fatty acid having 10 to 30 carbon atoms is preferred. Furthermore, as the partial or total ester of polyhydric alcohol and fatty acid, a partial or total ester of a polyhydric alcohol having 1 to 25 carbon atoms and a saturated fatty acid having 10 to 30 carbon atoms is preferred.

[0058] Specifically, examples of esters between monohydric alcohols and saturated fatty acids include stearyl stearate, palmityl palmitate, butyl stearate, methyl laurate, and isopropyl palmitate. Examples of partial or total esters between polyhydric alcohols and saturated fatty acids include monoglyceride stearate, diglyceride stearate, triglyceride stearate, monosorbite stearate, monoglyceride behenic acid, monoglyceride capric acid, monoglyceride laurate, pentaerythritol monostearate, pentaerythritol tetrastearate, pentaerythritol tetrapelargonate, propylene glycol monostearate, biphenyl biphenate, sorbitan monostearate, 2-ethylhexyl stearate, and total or partial esters of dipentaerythritol such as dipentaerythritol hexastearate.

[0059] Furthermore, the composition of this embodiment may also contain other additives such as processing stabilizers, ultraviolet absorbers, flow modifiers, crystal nucleating agents, strengthening agents, dyes, antistatic agents, bluing agents, and antibacterial agents.

[0060] <Method for producing the composition> The composition according to this embodiment is obtained by mixing a nickel azo complex pigment, a quinacridone pigment, a phthalocyanine pigment containing one or more compounds represented by the general formula (Pc) or dimers of said compound, and a resin. The method for producing the composition is not limited to the above, and may include, for example, a step of mixing a nickel azo complex pigment, a quinacridone pigment, and a phthalocyanine pigment containing one or more compounds represented by the above general formula (Pc) or dimers of said compound to obtain a pigment mixture, and a step of mixing the pigment mixture with a resin to obtain a composition. Furthermore, without departing from the spirit of the present 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.

[0061] <Molded body> The molded article according to this embodiment is obtained by molding the above-mentioned molded article composition. The molding method is not particularly limited, and injection molding, extrusion molding, blow molding, compression molding, vacuum molding, etc., can be used. For example, if a three-dimensional product is to be manufactured, injection molding can be used, and if a plate-shaped product is to be manufactured, in addition to extrusion molding, a flat press or the like can be used. If a film-shaped product is to be manufactured, in addition to melt extrusion, a solution casting method can be used, and when using a melt molding method, examples include inflation film molding, cast molding, extrusion lamination molding, calendering, sheet molding, fiber molding, blow molding, injection molding, rotational molding, coating molding, etc. Furthermore, in the case of a resin that hardens with active energy rays, a cured product can be manufactured using various hardening methods that utilize active energy rays. In particular, when a thermosetting resin is used as the main component of the matrix resin, one molding method involves pre-forming the molding material into a prepreg and then pressurizing and heating it using a press or autoclave. Other methods include RTM (Resin Transfer Molding), VaRTM (Vacuum Assist Resin Transfer Molding), lamination molding, and hand lay-up molding.

[0062] <Infrared transmittance> The infrared transmittance of the molded article according to this embodiment at a wavelength of 900 nm 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 to 90%, and preferably 80 to 90%. When the infrared transmittance of the molded article at a wavelength of 900 nm is 60% or more, infrared rays are transmitted more effectively, and sensing accuracy can be further improved.

[0063] <Heat resistance> In the molded article according to this embodiment, CIE-L * a * b * L in color systems * a * and b * The color difference ΔE is calculated from the following formula (A) using the following formula* The ab value is preferably less than 3, more preferably between 0.05 and 2.5, and more preferably between 0.075 and 1.5. Color difference ΔE * A value of less than 3 in the ab range results in minimal color change due to light irradiation in the ultraviolet to infrared wavelength range, high thermal stability, and excellent heat resistance. ΔE * ab = [(ΔL * ) 2 +(Δa * ) 2 +(Δb * ) 2 ] 1 / 2 ...(A)[In equation (A), ΔL * =L1 * -L0 * Δa * =a1 * -a0 * Δb * =b1 * -b0 * Represents L0 * a0 * , and b0 * L1 represents the color coordinates of the molded body before xenon lamp irradiation. * a1 * , and b1 * This represents the color coordinates of the molded body after irradiation with a xenon lamp.

[0064] <device> The device according to this embodiment is not particularly limited as long as it comprises the molded body described above, but is typically a sensor. The application of the sensor is also not particularly limited, but is a remote sensing method such as LiDAR. Examples of remote sensing sensors include near-infrared (NIR) sensors used in vehicle ADAS / AD, etc.

[0065] Figure 2 is a schematic diagram showing an example of a device comprising a molded body formed by molding the molded body composition of the present invention. In this device, LiDAR is typically employed. In Figure 2, the device 10 comprises a reflector 11 made of a molded body formed by molding the above-mentioned molded body composition, and a light sensor 12. The reflector 11 transmits light rays of a specific wavelength from the light rays L emitted from the light source LS. For example, the reflector 11 blocks visible light L1 and transmits infrared light L2 from the light rays L emitted from the light source LS. This improves the sensing accuracy and stability of the light sensor 12, thereby improving the reliability of the device 10. [Examples]

[0066] The following describes embodiments of the present invention. The present invention is not limited to the following embodiments.

[0067] (Examples 1-11) [Preparation of compositions for molded products] A pigment mixture was prepared by mixing phthalocyanine pigment, nickel azo complex pigment, and quinacridone pigment to the molar ratios shown in Table 1. Next, 10,000 parts by mass of resin were added to 10 parts by mass of the pigment mixture and mixed to obtain a composition for molded articles. The nickel azo complex pigment, quinacridone pigment, phthalocyanine pigment, and resin used in each example are listed below. The purity of each pigment and resin was approximately 100%.

[0068] (Nickel azo complex pigment) · Ni-AC-1 Average particle size: 20nm, molecular weight: 338.85 Product Name: Pigment Yellow 150 Manufacturer: DIC Corporation

[0069] [ka]

[0070] (Quinacridone pigment) ·Qu1 Average particle size: 11nm, molecular weight: 381.21 Product Name: Pigment Red 209 Manufacturer: DIC Corporation

[0071] [ka]

[0072] (Phthalocyanine pigment) • Aluminum phthalocyanine pigment (Al-Cl / Pc) Average particle size: 13nm, M Pc :Al,X Pc :Cl, molecular weight: 574.97 Product name:PB79 Manufacturer: Joint Venture Meilida Pigment Industry Co., Ltd.

[0073] [ka]

[0074] (resin) • Polycarbonate resin (PC-1) Product name: Panlight L-1225Z Manufacturer: Teijin Limited Melting point: 221-242℃ Weight average molecular weight (Mw): 21600 In the structural formula, n represents a non-zero integer.

[0075] [ka]

[0076] • Polyethylene terephthalate resin (PET-1) Product name: Mitsui Pet J125 Manufacturer: Mitsui Chemicals, Inc. Melting point: 251-262℃ Viscosity (IV): 0.76dl / g In the structural formula, n represents a non-zero integer.

[0077] [ka]

[0078] • Polyethylene terephthalate resin (PET-2) Product name: Mitsui Pet J135 Manufacturer: Mitsui Chemicals, Inc. Melting point: 251-263℃ Viscosity (IV): 0.85dl / g In the structural formula, n represents a non-zero integer.

[0079] [ka]

[0080] [Manufacturing of molded parts] The molded body compositions obtained in each example were placed in an injection molding machine (manufactured by Nissei Plastic Industrial Co., Ltd., machine name "PNX60III-5A"), and injection molding was performed under the following two conditions to obtain rectangular parallelepiped molded body 1 and molded body 2.

[0081] • Molded body 1 Molding temperature: 280℃ Dwell time: 0 minutes Dimensions: 5cm (height), 4cm (width), 2mm (thickness)

[0082] • Molded body 2 Molding temperature: 280℃ Duration of stay: 10 minutes Dimensions: 5cm (height), 4cm (width), 2mm (thickness)

[0083] (Comparative Example 1) A composition for molded articles and molded articles were obtained in the same manner as in Example 1, except that the copper phthalocyanine pigment shown below was used instead of the aluminum phthalocyanine pigment.

[0084] • Copper phthalocyanine pigment (Cu / Pc) Average particle size: 22nm, M:Cu, molecular weight: 576.08 Product Name: FASTGEN BLUE PA5380 Manufacturer: DIC Corporation

[0085] [ka]

[0086] The molded articles obtained in the above examples and comparative examples were measured and evaluated using the following methods.

[0087] [Infrared transmittance] The infrared transmittance of molded body 1 was measured using a spectrophotometer (manufactured by JASCO Corporation, instrument name "V-770"). An integrating sphere (manufactured by JASCO Corporation, instrument name "ISN-923") was used as an auxiliary device, and measurements were taken in the range of 300 nm to 2500 nm in 2 nm increments. An infrared transmittance of 60% or higher indicates good infrared transmittance, and a higher infrared transmittance value indicates higher infrared transmittance.

[0088] [Heat resistance] The colorimetric values ​​of molded body 1 and molded body 2 were determined using a spectrophotometer (manufactured by Suncolor, model name "Datacolor 650"). Then, ΔE was calculated using the above formula (A). * ab (= colorimetric value of molded body 2 - colorimetric value of molded body 1) was calculated. ΔE * If the ab value is less than 3, it indicates good heat resistance, and ΔE * A smaller ab value indicates less color change and higher heat resistance. The results are shown in Table 1 and Figure 1. Note that the colorimetric values ​​(a) listed in Table 1 are not considered. * and b * ) is of molded body 1.

[0089] [Table 1]

[0090] From the results in Table 1, in all of Examples 1 to 11, the infrared transmittance at a wavelength of 900 nm was 60% or more, and ΔE * It was found that the ab value was less than 3, indicating excellent infrared transmission, and also possessing good heat resistance. Furthermore, as shown in Figure 1, it was confirmed that in Examples 2-3, 5-6, and 8-11, a broadening of hue was achieved while maintaining saturation in the mixing of yellow and red, red and blue, or blue and yellow. In particular, in Examples 2, 4, 6, 9, and 11, the pigments contained predetermined phthalocyanine pigments, and it was confirmed that an even broader hue was achieved in the mixing of red and blue, or blue and yellow.

[0091] On the other hand, in Comparative Example 1, the pigment consisted solely of copper phthalocyanine pigment, and the infrared transmittance at a wavelength of 900 nm was 55%, indicating inferior infrared transmittance. [Explanation of symbols]

[0092] 10 devices 11 Reflector 12 Light Sensors

Claims

1. Pigments and A composition comprising a resin, The aforementioned pigments are nickel azo complex pigments, quinacridone pigments, and the following general formula (Pc) 【Chemistry 1】 (In the formula, M Ｐｃ is, X Ｐｃ -Al (trivalent aluminum), X Ｐｃ - Represents Co (trivalent cobalt), Sn (divalent tin), or Fe (divalent iron), X Ｐｃ is a hydroxyl group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or -O-P(=O)R １ R ２ , -O-C(=O)R ３ , -OSO ２ R ４ and represents R １ , R ２ Each of these independently represents a hydrogen atom, a hydroxyl group, an optionally substituted alkyl group, an optionally substituted aryl group, an optionally substituted alkoxy group, or an optionally substituted aryloxy group. R １ , R ２ However, they may also bond to each other to form a ring. R ３ This represents a hydrogen atom, an optionally substituted alkyl group, an optionally substituted cycloalkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group. R ４ (This represents a hydroxyl group, an optionally substituted alkyl group, an optionally substituted aryl group, or an optionally substituted heterocyclic group.) A composition comprising one or more phthalocyanine pigments represented by or dimers of said phthalocyanine pigments, selected from the group consisting of said phthalocyanine pigments.

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

3. The composition according to claim 1, 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.

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

5. A molded article obtained by molding the composition for molded articles described in claim 4.

6. The molded article according to claim 5, wherein the infrared transmittance of the molded article at 900 nm is 60% or more.

7. A device comprising the molded body described in claim 5.

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