JP2021025029A - Wavelength-selectively transparent polycarbonate resin composition - Google Patents

Abstract

To provide a polycarbonate resin composition having wavelength-selective transparency substantially not changing optical characteristics even if mold-processing at a high temperature, and a molded product thereof.SOLUTION: The wavelength-selectively transparent polycarbonate resin includes: an aromatic polycarbonate resin (A); a coloring agent (B) containing a pigment having a maximum absorbing wavelength of less than 900 nm; and a phosphoric acid ester-based compound or phosphoric acid (C). The coloring agent (B) is contained by 0.01-2.0 pts.mass to 100 pts.mass of the aromatic polycarbonate (A), and concerning the phosphoric acid ester-based compound or phosphoric acid (C), phosphoric acid eater-based compound (C1) is contained by 0.005-0.3 pt.mass, or phosphoric acid (C2) is contained by 0.0001-0.004 pt.mass.SELECTED DRAWING: None

Description

The present invention relates to a wavelength selective transmissive polycarbonate resin composition, and more particularly to a polycarbonate resin composition having wavelength selective transmissivity, which does not transmit visible light but transmits infrared rays.

One of the remote sensing technologies using light is LIDAR (Light Detection and Ranging,) which measures scattered light from laser irradiation that emits light in a pulsed manner and analyzes the distance to an object at a long distance and the properties of the object. Laser Imaging Detection and Ranging, also known as "light detection and ranging" or "laser image detection and ranging", "rider"). This technique is similar to radar, replacing radar radio waves with light. The distance to the target can be obtained from the time from when the reflected light is received after the light is emitted. Riders use electromagnetic waves with wavelengths much shorter than radar, typically ultraviolet, visible, and near-infrared.

In recent years, autonomous driving technology for automobiles has been rapidly developing. In order to support Level 3 which is conditional automatic driving and Levels 4 to 5 which are not premised on driving by a driver, a function for safely autonomous driving on expressways and general roads is required. Therefore, in addition to cameras and millimeter-wave radars, riders are attracting attention in order to ensure sensing redundancy. In order to support autonomous driving, it is necessary to improve the accuracy of lidar, and it is required to develop a wavelength selection filter having better performance.

Patent Document 1 is used in Lidar because an epoxy resin cured product containing an azoanthraquinone-based mixture or the like has an average transmittance of 0% in the wavelength range of 380 nm and a light transmittance of 80% or more at a wavelength of 900 nm. It is disclosed that it can be preferably used when the wavelength of the laser light to be used is in the range of 850 to 950 nm (see Patent Document 1, Examples 1 and 2, [0050] and [FIG. 1]). Further, in Patent Document 1, a cured epoxy resin containing an azoanthraquinone-based mixture or the like has an average transmittance of 0% in the wavelength range of 380 nm and a light transmittance of 80% or more at a wavelength of 1550 nm. Therefore, Lidar It is disclosed that the laser light wavelength used in the above can be preferably used when it is in the range of 1500 to 1600 nm (see Patent Document 1, Examples 1 to 3, [0050] and [FIG. 1]).

JP-A-2017-167484

Patent Document 1 discloses a cured product of an epoxy resin, but a cured product of an epoxy resin is not always suitable because it is provided in large quantities at low cost. Considering the future development of lidar, it is necessary to provide a composition and a molded product thereof that can be produced in large quantities at a lower cost.

The present inventors have focused on a polycarbonate molded product having excellent transparency and mechanical strength. However, since polycarbonate has a high molding temperature, the transmittance decreases and the transmittance decreases while the polycarbonate resin composition is molded at a high temperature. / Or noticed that it can be increased, that is, the transmittance (optical properties) can be changed. Changes in optical properties can cause malfunctions. Therefore, an object of the present invention is to provide a polycarbonate resin composition and a molded product thereof, which have wavelength selective transparency and do not substantially change the optical characteristics even when molded at a high temperature.

As a result of diligent studies, the present inventors have found that a polycarbonate resin composition containing a colorant containing a dye having a maximum absorption wavelength of less than 900 nm (for example, an anthraquinone dye) and a phosphoric acid or a phosphoric acid ester compound has been obtained. It has been found that a polycarbonate resin composition and a molded product thereof, which do not substantially change the optical properties even when molded at a high temperature and have wavelength selective transmission, are provided. Furthermore, they have found that such resin compositions and molded articles can be suitably used for Lidar applications, and have completed the present invention.

The present specification includes the following aspects.
1. 1. It contains an aromatic polycarbonate resin (A), a colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid (C).
With respect to 100 parts by mass of aromatic polycarbonate resin (A)
Contains the colorant (B) in an amount of 0.01 to 2.0 parts by mass.
Regarding the phosphoric acid or phosphoric acid ester compound (C), the phosphoric acid ester compound (C1) is contained in 0.005 to 0.3 parts by mass, or the phosphoric acid (C2) is contained in 0.0001 to 0.004 parts by mass. A wavelength selective permeable polycarbonate resin composition comprising.
2. 2. The colorant (B) includes a colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm, and / or a colorant (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm. The wavelength selective permeable polycarbonate resin composition described.
3. 3. The colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm includes anthraquinone dye, perinone dye, perylene dye, methine dye, azo dye, quinoline dye, phthalocyanine dye, and heterocyclic dye. The wavelength selective transmissive aromatic polycarbonate resin composition according to 1 or 2 above, which comprises at least one selected from.
4. 2. The wavelength selection according to 2 above, wherein the colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm includes at least one selected from anthraquinone dye, perylene dye, perylene dye, and methine dye. Permeable aromatic polycarbonate resin composition.
5. The wavelength selective transmissive aromatic polycarbonate resin composition according to 2 or 4 above, wherein the colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm contains an anthraquinone-based dye.
6. 5. Wavelength selective transmission according to 5 above, wherein the anthraquinone dye contains at least one selected from the group consisting of Solvent Yellow 163, Disperse Violet 28, Solvent Blue 97, Solvent Green 28, Solvent Green 3, and Disperse Blue 60. Aromatic polycarbonate-based resin composition.
7. The colorant (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm includes at least one selected from phthalocyanine dyes, anthraquinone dyes and heterocyclic dyes, 2 and 4 to 6 above. The wavelength selective transmissive aromatic polycarbonate resin composition according to any one of.
8. Any of the above 1 to 7, wherein the phosphoric acid ester compound or phosphoric acid (C) contains at least one selected from the group consisting of the phosphoric acid ester compound or phosphoric acid represented by the following general formula (I). The wavelength selective permeable polycarbonate resin composition according to 1.
Equation (I):
O = P (OH) _n (OR) _3-n
[In the general formula (1), R is an alkyl group or an aryl group, which may be the same or different, and n represents an integer of 0 to 2. ]
9. The wavelength-selective permeable aromatic polycarbonate resin composition according to 8 above, wherein the compound represented by the general formula (I) contains a mixture of monostearyl acid phosphate and disstearyl acid phosphate.
10. Further contains at least one selected from the group containing a heat stabilizer, an antioxidant, a mold release agent, an ultraviolet absorber, a colorant, a softener, an antistatic agent, an impact improving agent and a spreading agent. The wavelength selective transmissive aromatic polycarbonate resin composition according to any one of 1 to 9 above.
11. A wavelength-selective permeable polycarbonate resin molded product containing the wavelength-selective permeable aromatic polycarbonate resin composition according to any one of 1 to 10 above.
12. The wavelength selective transmissive resin molded product according to 11 above, which is a lidar cover.
13. A method for producing a wavelength-selective permeable polycarbonate resin molded product, which comprises molding the resin composition according to any one of 1 to 10 above.

The polycarbonate resin composition of the embodiment of the present invention can be molded by using an ordinary apparatus to produce a molded product, and the optical properties are not substantially changed during the molding. Therefore, the polycarbonate resin composition of the embodiment of the present invention can provide a molded product having appropriate wavelength selectivity and substantially no change in optical characteristics. The molded product can be suitably used for Lidar applications.

The wavelength selective permeable polycarbonate resin composition of the embodiment of the present invention comprises an aromatic polycarbonate resin (A), a colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid ( Including C)
With respect to 100 parts by mass of aromatic polycarbonate resin (A)
Contains the colorant (B) in an amount of 0.01 to 2.0 parts by mass.
Regarding the phosphoric acid or phosphoric acid ester compound (C), the phosphoric acid ester compound (C1) is contained in 0.005 to 0.3 parts by mass, or the phosphoric acid (C2) is contained in 0.0001 to 0.004 parts by mass. Including.

In the embodiment of the present invention, the "aromatic polycarbonate resin (A)" is a polycarbonate resin based on an aromatic compound, and is particularly limited as long as the aromatic polycarbonate resin composition of the present invention can be obtained. There is nothing. Examples of such aromatic polycarbonate resins include polymers obtained by a phosgene method in which various dihydroxydiaryl compounds are reacted with phosgene, or a transesterification method in which a dihydroxydiaryl compound is reacted with a carbonic acid ester such as diphenyl carbonate. it can. Representative examples include polycarbonate resins made from 2,2-bis (4-hydroxyphenyl) propane (bisphenol A).

As the dihydroxydiaryl compound, in addition to bisphenol A, for example, bis (4-hydroxyphenyl) methane, 1,1-bis (4-hydroxyphenyl) ethane, 2,2-bis (4-hydroxyphenyl) butane, 2 , 2-bis (4-hydroxyphenyl) octane, bis (4-hydroxyphenyl) phenylmethane, 2,2-bis (4-hydroxyphenyl-3-methylphenyl) propane, 1,1-bis (4-hydroxy-) 3-Third Butylphenyl) Propane, 2,2-Bis (4-hydroxy-3-bromophenyl) Propane, 2,2-Bis (4-Hydroxy-3,5-Dibromophenyl) Propane, 2,2-Bis Bis (hydroxyaryl) alkanes such as (4-hydroxy-3,5-dichlorophenyl) propane; 1,1-bis (4-hydroxyphenyl) cyclopentane, 1,1-bis (4-hydroxyphenyl) cyclohexane and the like Bis (hydroxyaryl) cycloalkanes; dihydroxydiaryl ethers such as 4,4'-dihydroxydiphenyl ether, 4,4'-dihydroxy-3,3'-dimethyldiphenyl ether; dihydroxydiaryl such as 4,4'-dihydroxydiphenylsulfide Sulfides; dihydroxydiarylsulfoxides such as 4,4'-dihydroxydiphenylsulfoxide, 4,4'-dihydroxy-3,3'-dimethyldiphenylsulfoxide; 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxy- Examples of dihydroxydiarylsulfones such as 3,3'-dimethyldiphenylsulfone can be exemplified. These can be used alone or in combination. In addition to these, piperazine, dipiperidyl hydroquinone, resorcin, 4,4'-dihydroxydiphenyl and the like can be used in combination.

Further, the dihydroxydiaryl compound may be used in combination with, for example, the following trivalent or higher valent aromatic compounds.

Examples of the trivalent or higher valent phenol compound include fluoroglucin, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -heptene, 2,4,6-dimethyl-2,4,6-. Tri- (4-hydroxyphenyl) -heptene, 1,3,5-tri- (4-hydroxyphenyl) -benzol, 1,1,1-tri- (4-hydroxyphenyl) -ethane and 2,2-bis -[4,4- (4,4'-dihydroxydiphenyl) -cyclohexyl] -propane and the like can be exemplified.

The viscosity average molecular weight of the aromatic polycarbonate resin (A) is preferably 1000 to 100,000, and more preferably 12,000 to 30,000. When producing such an aromatic polycarbonate resin (A), a molecular weight modifier, a catalyst, or the like can be used as needed. Commercially available products can be used as such aromatic polycarbonate resins.

In the embodiment of the present invention, the colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm includes a dye having a maximum absorption wavelength of less than 900 nm, and the dye is, for example, a dye (organic, inorganic) or a pigment. It can be selected from (organic, inorganic) and the like, and is not particularly limited as long as the aromatic polycarbonate resin composition of the present invention can be obtained. As such a dye, either a dye or a pigment can be used, but it is more preferable to use a dye because it is difficult for the dye to diffusely reflect light on the surface of the particles. The colorant (B) containing these dyes can be used alone or in combination of two or more.

Examples of the dye-based pigments include anthraquinone-based pigments, perinone-based pigments, perylene-based pigments, methine-based pigments, azo-based pigments, quinoline-based pigments, phthalocyanine-based pigments, and heterocyclic dyes. Oil-soluble dyes are preferred because they can be more easily and uniformly dispersed in the resin composition. Since the dye is made of particles smaller than the pigment, the dye can be mixed more uniformly with the resin composition, which is preferable because the haze value of the molded product can be made smaller. Dyes are more preferred for Lidar.

Examples of the pigment-based pigments include organic pigments such as azo-based (soluble azo-based, insoluble azo-based) pigments, condensation-based pigments, slene-based pigments, quinacridone-based dyes, dioxazine-based dyes, and isoindolin-based dyes, and oxidation. Examples thereof include inorganic pigments such as titanium, iron oxide, chromium oxide, carbon black, ultramarine, barium sulfate, calcium carbonate, zinc flower, lead sulfate, titanium black, and synthetic iron black.

The colorant (B) preferably contains a colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm, and / or a colorant (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm.

In the embodiment of the present invention, the colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm may contain at least one selected from anthraquinone dyes, perylene dyes, perylene dyes, and methine dyes. preferable. The colorant (B1) preferably contains an anthraquinone pigment.

(B1) The colorant can further contain at least one selected from phthalocyanine dyes and heterocyclic dyes.

In the resin composition of the embodiment of the present invention, a plurality of other dyes can be used in combination as the (b1) colorant in addition to the anthraquinone dye. For example, it may be a combination of pigment and pigment, a combination of pigment and dye, and a combination of dye and dye, but it is preferable to use a combination of dye and dye. It is preferable to use an anthraquinone-based dye in combination with another dye because it can suppress or block light of various wavelengths and can provide good light transmission in various wavelength regions.

As long as the composition of the embodiment of the present invention can be obtained, the above-mentioned dye is not particularly limited, but specifically, the following dyes can be used.

The anthraquinone dye preferably contains at least one selected from the group consisting of Solvent Yellow 163, Disperse Violet 28, Solvent Blue 97, Solvent Green 28, Solvent Green 3, and Disperse Blue 60.

Examples of the perinone-based dyes include dyes commercially available with color indexes such as Solvent Orange 60, Solvent Orange 78, Solvent Orange 90, Solvent Violet 29, Solvent Red 135, Solvent Red 162, and Solvent Red 179.

Examples of the perylene dye include Solvent Green 3, Solvent Green 5, Solvent Orange 55, Vat Red 15, Vat Orange 7, F Orange 240, F Red 305, F Red 339, F Yellow 83, Solvent Red 17 and the like. Examples of pigments that have been used.

Examples of the methine dye include dyes commercially available with color indexes such as Solvent Orange 80, Solvent Yellow 93, and Disperse Yellow 201.
Examples of the quinoline dye include dyes commercially available with color indexes such as Solvent Yellow 33, Solvent Yellow 98, Solvent Yellow 157, Disperse Yellow 54, and Disperse Yellow 201.

In the embodiment of the present invention, the colorant (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm may contain at least one selected from phthalocyanine dyes, anthraquinone dyes and heterocyclic dyes. preferable.

The (B2) colorant preferably contains a phthalocyanine pigment, and examples of such a phthalocyanine pigment include FDN-002, FDN-023, and FDN-024 commercially available from Yamada Chemical Co., Ltd.

The (B2) colorant preferably contains a heterocyclic dye, and examples of such a heterocyclic dye include SDO-C8 commercially available from Arimoto Chemical Industry.

The (B2) colorant preferably contains an anthraquinone-based dye, and examples of such anthraquinone-based dye include SDO-C33 commercially available from Arimoto Chemical Industry.

The resin composition of the embodiment of the present invention contains 0.01 to 2.0 parts by mass of a colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm with respect to 100 parts by mass of the aromatic polycarbonate resin (A). It is preferably contained, more preferably 0.012 to 1.5 parts by mass, and further preferably 0.014 to 1.0 parts by mass. The lower limit of the content of the colorant (B) may be 0.02 parts by mass or 0.025 parts by mass.

In the embodiment of the present invention, the phosphoric acid ester compound or the phosphoric acid (C) is not particularly limited as long as the resin composition of the embodiment of the present invention can be obtained, but the following general formula (I) can be used. It is preferable to contain at least one selected from the group consisting of the represented phosphoric acid ester compound and phosphoric acid.

Formula (I): O = P (OH) _n (OR) _3-n
[In formula (I), R is an alkyl group or an aryl group, each of which may be the same or different, and n represents an integer of 0 to 2. ]

In the above general formula (I), R is preferably an alkyl group having 1 to 30 carbon atoms or an aryl group having 6 to 30 carbon atoms, and more preferably an alkyl group having 2 to 25 carbon atoms. is there. Further, m is preferably 1 or 2.
Examples of the phosphate ester compound of the formula (I) include mono or di-stearyl acid phosphate, which is a mixture of stearyl phosphate (about 50 mol% monostearyl phosphate and about 50 mol% distearyl phosphate). (Product name "AX-71" manufactured by Asahi Denka Co., Ltd.) is known.

The phosphoric acid is a non-volatile weak acid, and a commercially available product can be used, and examples thereof include, but are not limited to, phosphoric acid manufactured by Nacalai Tesque, and phosphoric acid manufactured by Wako Pure Chemical Industries, Ltd.

The resin composition of the embodiment of the present invention contains 0.005 of the phosphoric acid ester compound (C1) with respect to the phosphoric acid ester compound or the phosphoric acid (C) with respect to 100 parts by mass of the aromatic polycarbonate resin (A). It is preferably contained in an amount of ~ 0.3 parts by mass, more preferably 0.007 to 0.1 parts by mass, and further preferably 0.009 to 0.08 parts by mass. Alternatively, phosphoric acid (C2) is preferably contained in 0.0001 to 0.004 parts by mass, preferably 0.0001 to 0.001 parts by mass, and 0.0003 to 0.0008 parts by mass. More preferably, it is contained in an amount of 0.0004 to 0.0006 parts by mass.

The aromatic polycarbonate resin composition of the embodiment of the present invention can further contain a phosphorus-based antioxidant (D).

The phosphorus-based antioxidant is not particularly limited as long as the aromatic polycarbonate resin composition intended by the present invention can be obtained, but it is preferable to contain a phosphite ester compound having the following phosphite ester structure. ..

In the aromatic polycarbonate resin composition of the embodiment of the present invention, the phosphorus-based antioxidant (D) is a phosphite ester compound represented by the following formula (11) and a subphosphate represented by the following formula (12). It is preferable to contain at least one compound selected from a phosphoric acid ester compound, a phosphite ester compound represented by the following formula (13), and a phosphite ester compound represented by the following formula (14).

The phosphorus-based antioxidant (D) preferably contains, for example, a compound represented by the following formula (11).

Equation (11):
(In the formula, R ¹ represents an alkyl group having 1 to 20 carbon atoms, and a represents an integer of 0 to 3.)

In the above formula (11), R ¹ is an alkyl group having 1 to 20 carbon atoms, and more preferably an alkyl group having 1 to 10 carbon atoms.

Examples of the compound represented by the formula (11) include triphenylphosphine, tricresylphosphine, tris (2,4-di-t-butylphenyl) phosphite, trisnonylphenylphosphine and the like. .. Among these, tris (2,4-di-t-butylphenyl) phosphite is particularly preferable, and for example, it is commercially available as Irgafos 168 manufactured by BASF (“Irgafos” is a registered trademark of BASF Societyus Europe). It is available at.

The phosphorus-based antioxidant (D) preferably contains, for example, a compound represented by the following formula (12).

Equation (12):
(In the formula, R ² , R ³ , R ⁵ and R ⁶ each have a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, and 6 to 12 carbon atoms, respectively. Alkylcycloalkyl group, aralkyl group or phenyl group having 7 to 12 carbon atoms. R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. X is a single bond, sulfur atom or formula: -CHR. ⁷ − (Here, R ⁷ indicates a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms). A indicates a group having 1 to 8 carbon atoms. alkylene group or the formula: * - COR 8 - ^(wherein, R ⁸ represents a single bond or an alkylene group having 1 to 8 carbon atoms, * indicates a bond to the oxygen side) are represented by One of Y and Z represents a hydroxyl group, an alkoxy group having 1 to 8 carbon atoms, or an aralkyloxy group having 7 to 12 carbon atoms, and the other has a hydrogen atom or 1 to 8 carbon atoms. Indicates an alkyl group.)

In the formula (12), R ² , R ³ , R ⁵ and R 6 independently have a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, ^{and 6 to 6 carbon atoms, respectively.} It shows 12 alkylcycloalkyl groups, 7-12 carbon atoms aralkyl or phenyl groups.

Here, examples of the alkyl group having 1 to 8 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group, an i-butyl group, a sec-butyl group and a t-butyl group. Examples include a group, a t-pentyl group, an i-octyl group, a t-octyl group, a 2-ethylhexyl group and the like. Examples of the cycloalkyl group having 5 to 8 carbon atoms include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group and the like. Examples of the alkylcycloalkyl group having 6 to 12 carbon atoms include a 1-methylcyclopentyl group, a 1-methylcyclohexyl group, a 1-methyl-4-i-propylcyclohexyl group and the like. Examples of the aralkyl group having 7 to 12 carbon atoms include a benzyl group, an α-methylbenzyl group, an α, α-dimethylbenzyl group and the like.

It is preferable that R ² , R ³ and R ⁵ are independently an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, or an alkyl cycloalkyl group having 6 to 12 carbon atoms. .. In particular, R ² and R ⁵ are preferably t-alkyl groups such as t-butyl group, t-pentyl group and t-octyl group, cyclohexyl group or 1-methylcyclohexyl group, respectively. In particular, R ³ has the number of carbon atoms such as methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, sec-butyl group, t-butyl group and t-pentyl group. It is preferably an alkyl group of 1 to 5, and more preferably a methyl group, a t-butyl group or a t-pentyl group.

The R ⁶ is preferably a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms, and is a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, or an i-propyl group. , N-Butyl group, i-butyl group, sec-butyl group, t-butyl group, t-pentyl group and the like, more preferably an alkyl group having 1 to 5 carbon atoms.

In formula (12), R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. Examples of the alkyl group having 1 to 8 carbon atoms include the alkyl groups exemplified in the above-mentioned explanations of ^{R 2} , R ³ , R ⁵ and R ^6. In particular, R ⁴ is preferably a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and more preferably a hydrogen atom or a methyl group.

In the formula (12), X represents a single bond, a sulfur atom or the formula: -CHR ⁷ - represents a group represented by. Here, R ⁷ in the formula: −CHR ⁷ − represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a cycloalkyl group having 5 to 8 carbon atoms. Examples of the alkyl group having 1 to 8 carbon atoms and the cycloalkyl group having 5 to 8 carbon atoms include the alkyl group and the cycloalkyl group exemplified in the explanations of ^{R 2} , R ³ , R ⁵ and R ^{6, respectively.} Be done. In particular, X is a single bond, a methylene group, or a methylene group substituted with a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group, an i-butyl group, a t-butyl group, or the like. It is preferably present, and more preferably a single bond.

In the formula (12), A is an alkylene group, or a group represented by formula having 1 to 8 carbon atoms: * - COR ⁸ - a group represented by. Examples of the alkylene group having 1 to 8 carbon atoms include a methylene group, an ethylene group, a propylene group, a butylene group, a pentamethylene group, a hexamethylene group, an octamethylene group, a 2,2-dimethyl-1,3-propylene group and the like. , Which is preferably a propylene group. Further, the formula: * - COR ⁸ - ^{R 8} in the represents a single bond or an alkylene group having 1 to 8 carbon atoms. Examples of the alkylene group having 1 to 8 carbon atoms showing R ^{8 include the alkylene group exemplified in the above description of A.} R ⁸ is preferably a single bond or an ethylene group. Further, the formula: * ^- COR 8 - * is in a bond of the oxygen side, indicating that a carbonyl group is bonded to an oxygen atom of the phosphite group.

In the formula (12), one of Y and Z represents a hydroxyl group, an alkoxy group having 1 to 8 carbon atoms or an aralkyloxy group having 7 to 12 carbon atoms, and the other is a hydrogen atom or 1 to 8 carbon atoms. The alkyl group of. Examples of the alkoxy group having 1 to 8 carbon atoms include a methoxy group, an ethoxy group, a propoxy group, a t-butoxy group, a pentyloxy group and the like. Examples of the aralkyloxy group having 7 to 12 carbon atoms include a benzyloxy group, an α-methylbenzyloxy group, an α, α-dimethylbenzyloxy group and the like. Examples of the alkyl group having 1 to 8 carbon atoms include the alkyl groups exemplified in the above-mentioned explanations of ^{R 2} , R ³ , R ⁵ and R ^6.

Examples of the compound represented by the formula (12) include 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl) propoxy. ] Dibenzo [d, f] [1,3,2] dioxaphosphepine, 6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propoxy] -2,4,8, 10-Tetra-t-Butyldibenzo [d, f] [1,3,2] dioxaphosphepine, 6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propoxy]- 4,8-di-t-Butyl-2,10-dimethyl-12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 6- [3- (3,5-di-t-) Butyl-4-hydroxyphenyl) propionyloxy] -4,8-di-t-butyl-2,10-dimethyl-12H-dibenzo [d, g] [1,3,2] dioxaphosphocin and the like. .. Among these, when the obtained aromatic polycarbonate resin composition is used in a field where optical properties are particularly required, 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl) -4-Hydroxy-5-t-butylphenyl) propoxy] dibenzo [d, f] [1,3,2] dioxaphosfepine is suitable, for example, Sumilyzer GP manufactured by Sumitomo Chemical Co., Ltd. ("" "Smilizer" is commercially available as a registered trademark).

The phosphorus-based antioxidant (D) preferably contains, for example, a compound represented by the following formula (13).

Equation (13):
(In the formula, R ⁹ and R ¹⁰ each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group which may be substituted with an alkyl group, and b and c are independently 0. Indicates an integer of ~ 3.)

Examples of the compound represented by the formula (13) include bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, phenylbisphenol A pentaerythritol diphosphite and the like. Bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite is commercially available under the trade name "ADEKA STUB PEP-24G" manufactured by ADEKA Corporation. ADEKA STAB PEP-36 (“ADEKA STAB” is a registered trademark) manufactured by ADEKA Corporation is commercially available.

The phosphorus-based antioxidant (D) preferably contains, for example, a compound represented by the following formula (14).

Equation (14):

(In the formula, R ^{11 to} R ¹⁸ independently represent an alkyl group or an alkenyl group having 1 to 3 carbon atoms. R ¹¹ and R ¹² , R ¹³ and R ¹⁴ , R ¹⁵ and R ¹⁶ , and R ¹⁷ R ¹⁸ may be bonded to each other to form a ring. R ^{19 to} R ²² each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms. D to g are independent of each other. Then, X ^{1 to} X ⁴ are independently indicating a single bond or a carbon atom. When X ^{1 to} X ⁴ are single bonds, among ^{R 11 to} R ^22, The functional group linked to the single bond is excluded from the general formula (14).)

Specific examples of the compound represented by the formula (14) include bis (2,4-dicumylphenyl) pentaerythritol diphosphite. This is manufactured by Dover Chemical Co., Ltd., product name "Doverphos (registered trademark) S-9228", manufactured by ADEKA Corporation, product name "ADEKA STAB PEP-45" (bis (2,4-dikumilphenyl) pentaerythritol diphos. It is commercially available as Fight).

Further, as the phosphorus-based antioxidant (D), for example, [1,1'-biphenyl] -4,4'-diylbis [bis (2,4-di-t-butylphenoxy) phosphine] and the like can be mentioned. Yes, for example, BASF's Irgafos P-EPQ (trade name) and Clariant Chemicals' HOSTANOX P-EPQ (trade name) are commercially available.

The above-mentioned aromatic polycarbonate resin composition satisfying at least one selected from the following is preferable:
The phosphite ester compound represented by the formula (11) contains tris (2,4-di-t-butylphenyl) phosphite;
The phosphite ester compound represented by the formula (12) is 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl). ) Propoxy] dibenzo [d, f] [1,3,2] containing dioxaphosfepine;
The phosphite ester compound represented by the formula (13) is 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3, 9-Diphosphaspiro [5,5] undecane; and the phosphite ester compound represented by the above formula (14) contains bis (2,4-dicumylphenyl) pentaerythritol diphosphite.

The amount of the phosphorus-based antioxidant (D) is preferably 0.5 parts by mass, more preferably 0.02 to 0.2 parts by mass, based on 100 parts by mass of the aromatic polycarbonate resin (A).

In addition to the above components, in the aromatic polycarbonate resin composition according to the embodiment, for example, an ultraviolet absorber which is a component for further improving the weather resistance of the obtained aromatic polycarbonate resin composition is added to the aromatic polycarbonate resin. It can be appropriately used depending on the use of the molded product obtained by molding the composition.

As the ultraviolet absorber, for example, an ultraviolet absorber usually blended in a polycarbonate resin, such as a benzotriazole compound, a triazine compound, a benzophenone compound, and a oxalic acid anilide compound, may be used alone or in combination of two or more. Can be used.

Examples of the benzotriazole-based compound include 2- (2-hydroxy-5-t-octylphenyl) benzotriazole and 2- (3-tert-butyl-2-hydroxy-5-methylphenyl) -5-chloro-2H-. Benzotriazole, 2- (3,5-di-tert-pentyl-2-hydroxyphenyl) -2H-benzotriazole, 2- (2H-benzotriazole-2-yl) -4-methyl-6- (3,4,5,6) -Tetrazydrophimidylmethyl) phenyl, 2- (2-hydroxy-4-octyloxyphenyl) -2H-benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) -2H-benzotriazole, 2-H-benzotriazole -Di (1,1-dimethylbenzyl) phenyl] -2H-benzotriazole, 2,2'-Methylenbis [6- (2H-benzotriazole-2-yl) 4- (1,1,3,3-tetramethylbutyl) phenyl], etc. Can be mentioned. Of these, 2- (2-hydroxy-5-t-octylphenyl) benzotriazole and the like are particularly preferable. For example, TINUVIN 329 manufactured by BASF (TINUVIN is a registered trademark) and Seasorb manufactured by Cipro Chemical Co., Ltd. 709, Chemisorb 79 manufactured by ChemiPro Kasei Co., Ltd., etc. are commercially available.

Examples of the triazine-based compound include 2,4-diphenyl-6- (2-hydroxyphenyl-4-hexyloxyphenyl) 1,3,5-triazine and 2- [4,6-bis (2,4-dimethyl). Phenyl) -1,3,5-triazine-2-yl] -5- (octyloxy) phenol, 2- (4,6-diphenyl-1,3,5-triazine-2-yl) -5-[( Hexyl) oxy] phenol and the like, for example, TINUVIN 1577 manufactured by BASF, etc. are commercially available.

As the oxalic acid anilide compound, for example, Sanduvor VSU manufactured by Clariant Japan Co., Ltd. is commercially available.

Examples of the benzophenone compound include 2,4-dihydroxybenzophenone and 2-hydroxy-4-n-octoxybenzophenone.

The amount of the ultraviolet absorber is 0 to 1.0 part by mass and preferably 0 to 0.5 part by mass with respect to 100 parts by mass of the aromatic polycarbonate resin (A). If the amount of the ultraviolet absorber exceeds 1.0 part by mass, the initial hue of the obtained aromatic polycarbonate resin composition may decrease. Further, when the amount of the ultraviolet absorber is 0.1 parts by mass or more, the effect of further improving the weather resistance of the aromatic polycarbonate resin composition is particularly exhibited.

Further, the aromatic polycarbonate resin composition according to the embodiment includes, for example, a heat stabilizer, another antioxidant, and a mold release agent (for example, manufactured by RIKEN Vitamin Co., Ltd.) as long as the effects in the present invention are not impaired. Rikemar S-100A and the like), various additives such as softeners, antistatic agents and impact improving agents, polymers other than the aromatic polycarbonate resin (A) and the like may be appropriately blended.

The aromatic polycarbonate resin composition of the embodiment of the present invention is a mixture of an aromatic polycarbonate resin (A), a colorant (B), and a phosphoric acid ester compound or phosphoric acid (C), and if necessary, phosphorus. Examples of a production method in which a system antioxidant (D), the various additives, and a polymer other than the aromatic polycarbonate resin (A) are mixed can be exemplified. As long as the aromatic polycarbonate resin composition of the present invention can be obtained, the production method thereof is not particularly limited, and the type and amount of each component can be appropriately adjusted. The method of mixing the components is also not particularly limited, and examples thereof include a method of mixing with a known mixer such as a tumbler and a ribbon blender, and a method of melt-kneading with an extruder. By these methods, pellets of the aromatic polycarbonate resin composition can be easily obtained.

The shape and size of the pellets of the aromatic polycarbonate resin composition obtained as described above are not particularly limited, and may be any shape and size of general resin pellets. For example, the shape of the pellet includes an elliptical columnar shape, a columnar shape, and the like. The size of the pellet is preferably about 2 to 8 mm in length, and in the case of an elliptical columnar shape, the major axis of the cross-sectional ellipse is preferably about 2 to 8 mm and the minor axis is preferably about 1 to 4 mm. In the case of a columnar shape, it is preferable that the diameter of the cross-sectional circle is about 1 to 6 mm. It should be noted that each of the obtained pellets may have such a size, and all the pellets forming the pellet aggregate may have such a size, and the average value of the pellet aggregate is this. The size may be such that there is no particular limitation.

Regarding the thermal stability of the resin composition of the embodiment of the present invention, it is preferable that the Δ of the molded product after 10 minutes residence is 200 nm or less, and that the Δ of the molded product after 30 minutes residence is 200 nm or less. It is preferable that the Δ of the molded product after staying for 60 minutes is 200 nm or less. The thermal stability of the resin composition can be measured by the method described in Examples.

Regarding the reliability of the resin composition of the embodiment of the present invention, it is preferable that the molded product has a molecular weight of 16000 or more after being allowed to stand at 85 ° C. 95% RH for 240 hours, and the molded product is placed under the condition of 120 ° C. It is more preferable that the molecular weight after standing for 240 hours is 16000 or more. The reliability of the resin composition can be measured by the method described in Examples.

The molded product of the embodiment of the present invention can be obtained by molding the above aromatic polycarbonate resin composition, and can be suitably used for sensors, filters and the like.

As long as the molded product of the present invention can be obtained, the method for producing the molded product is not particularly limited, and for example, the aromatic polycarbonate resin composition is molded by a known injection molding method, compression molding method, or the like. There is a way to do it.

The molded product of the embodiment of the present invention is suitable as, for example, a sensor cover for Lidar.

As described above, an embodiment has been described as an example of the present invention. However, the technique of the present invention is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made as appropriate.

Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples, but these Examples are only one aspect of the present invention, and the present invention is not limited to these Examples.

The components used in this example are shown below.
(A) Aromatic Polycarbonate Resin (a1) Polycarbonate Resin Synthesized from Bisphenol A and carbonyl Chloride Viscosity Average Molecular Weight: 18800, SD Polycarbonate 200-20 (trade name) manufactured by Sumika Polycarbonate Co., Ltd., "SD Polycarbonate" Is a registered trademark of Sumika Polycarbonate Co., Ltd.

(B) Dye with maximum absorption wavelength less than 900 nm (b1) Anthraquinone dye (Solvent Blue 97)
Bayer AG Macrolex Blue RR (trade name), maximum absorption wavelength: 630 nm

(B2) Anthraquinone dye (Solvent Green 28)
Bayer AG Macrolex Green G (trade name), maximum absorption wavelength: 690 nm

(B3) Anthraquinone dye (SD-3, mixture)
Manufactured by Kenei Kogyo Co., Ltd., maximum absorption wavelength: 630 nm

(B4) Anthraquinone dye (Solvent Green 3)
Mitsui PS Green B (trade name) manufactured by Mitsui Chemical Fine Co., Ltd., maximum absorption wavelength: 640 nm

(B5) Methine dye (Disperse Yellow 201)
Bayer AG Macrolex Yellow 6G (trade name), maximum absorption wavelength: 440 nm

(B6) Perylene dye (Solvent Red 179)
Bayer AG Macrolex Red E2G (trade name), maximum absorption wavelength: 480 nm

(B7) Phthalocyanine dye (FDN-002 trade name)
Made by Yamada Chemical Co., Ltd., Maximum absorption wavelength: 807 nm
(B8) Phthalocyanine dye (FDN-023 trade name)
Made by Yamada Chemical Co., Ltd., Maximum absorption wavelength: 790 nm

(B9) Phthalocyanine dye (FDN-024 product name)
Made by Yamada Chemical Co., Ltd., Maximum absorption wavelength: 830 nm

(B10) Anthraquinone dye (SDO-C33 product name)
Arimoto Chemical Industry Co., Ltd., Maximum absorption wavelength: 846 nm

(B11) Heterocyclic dye (SDO-C8 trade name)
Made by Arimoto Chemical Industry Co., Ltd., Maximum absorption wavelength: 785 nm

(C) Phosphoric acid or phosphoric acid ester compound (c1) Phosphoric acid ester compound Phosphoric acid stearyl mixed ester (mixture of about 50 mol% of monostearyl phosphate and about 50 mol% of distearyl phosphate; manufactured by ADEKA Co., Ltd. Adecastab "AX-71 (trade name)"
(C2) Phosphoric acid Phosphoric acid manufactured by Nacalai Tesque (H ₃ PO ₄ )

(D) Phosphorus Antioxidant (d1) Phosphorus Antioxidant HOSTANOX P-EPQ (trade name) manufactured by Clariant Chemicals, Inc.
[1,1'-biphenyl] -4,4'-diylbis [bis (2,4-di-t-)
Butylphenoxy) Phosphine]
Additive

(X1) Release agent Riken Vitamin Co., Ltd. Rikemar S-100A (trade name)

These components were blended in the mass ratios shown in Tables 1 to 3 to produce the polycarbonate compositions of Examples 1 to 13 and Comparative Examples 1 to 4.

Each of the polycarbonate compositions of Examples 1 to 13 and Comparative Examples 1 to 4 was evaluated by the following evaluation methods.
(1) Thermal stability In order to evaluate thermal stability, a polycarbonate resin composition was molded using J100 E2P manufactured by Japan Steel Works at a cylinder temperature of 320 ° C and a mold temperature of 100 ° C, and then molded in the cylinder (320). The mixture was allowed to stay at (° C.) for 10,30,60 minutes to obtain a molded product (1 mm). The optical spectrum of the molded product was evaluated using a UH4150 manufactured by Hitachi High-Tech Science, and the change in optical characteristics was quantified as follows.
The transmittance was measured every 2 nm from 1050 nm to 500 nm, and the difference between the wavelength at which the transmittance began to decrease (hereinafter referred to as the decrease start wavelength) and the wavelength at which the transmittance had completely decreased (hereinafter referred to as the decrease completion wavelength) was measured. .. The case where the reduction start wavelength-decrease completion wavelength (Δ) was 200 nm or less was regarded as a non-defective product. If it is 200 nm or more, it is regarded as defective. In the specific wavelength selection filter, it is preferable that the optical spectrum is steep, and when the difference in wavelength is large, that is, when the above Δ is 200 nm or more (when it is not steep), a problem may occur as a filter. Therefore, it is not preferable.

(2) Reliability Each of the polycarbonate resin compositions of Examples 1 to 13 and Comparative Examples 1 to 4 was evaluated by the following evaluation methods.
The polycarbonate resin composition was molded using J100 E2P manufactured by Japan Steel Works at a cylinder temperature of 320 ° C and a mold temperature of 100 ° C, and the molded product was molded under the conditions of 85 ° C 95% RH and heat aging evaluation 120 ° C. The samples were obtained (for evaluation) by allowing them to stand for 240 hours each. The weight average molecular weight of it was measured. A case where the weight average molecular weight was 16000 or more was regarded as a good product, and a case where the weight average molecular weight was less than 16000 was regarded as a defective product. The weight average molecular weight was measured using an Alliance HPLC system manufactured by Japan Waters Corp. as a GPC device. As a column for GPC, PLgel 5 μm Mini MIX-C manufactured by Agilent Technologies was used. A solution was prepared by dissolving the sample using dichloromethane as a solvent. The solution was passed through a column at 40 ° C. and a flow rate of 0.3 mL / min using THF as an eluent to obtain measurements. Using a sample having a known weight average molecular weight (monodisperse polystyrene), a calibration curve for gel permeation chromatography (GPC) was prepared and the measured values were calibrated to obtain the desired weight average molecular weight.

The polycarbonate resin compositions of Examples 1 to 13 include an aromatic polycarbonate resin (A), a colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid (C). , The colorant (B) is contained in an amount of 0.01 to 2.0 parts by mass with respect to 100 parts by mass of the aromatic polycarbonate resin (A), and the phosphoric acid or the phosphoric acid ester-based compound (C) is a phosphoric acid ester-based compound. The compound (C1) is contained in 0.005 to 0.3 parts by mass, or the phosphoric acid (C2) is contained in 0.0001 to 0.04 parts by mass.
The polycarbonate resin compositions of Examples 1 to 13 are excellent in thermal stability and reliability, and are suitable as wavelength selective transmissive polycarbonate resin compositions for fitters.

In the molded products of Comparative Examples 1 and 2, the transmittance reduction start wavelength is shifted to the longer wavelength side, and the wavelength width from the transmittance reduction start wavelength to the reduction completion wavelength is large, so that the 850-950 nm used in Lidar. It is not possible to properly transmit near infrared rays. Therefore, the detection ability of Lidar may decrease. On the other hand, in the case of Examples 1 to 13 using the phosphoric acid ester compound of the present invention or phosphoric acid, no significant change was observed in the transmittance reduction start wavelength and the wavelength width even when the residence time was 60 minutes. , 850nm-950nm near infrared rays can be transmitted appropriately, and it is clear that it is excellent as a wavelength selection filter.

When an excess amount of phosphoric acid ester or phosphoric acid is blended as in Comparative Examples 3 and 4, the molecular weight decreases significantly after the reliability test, and the impact resistance required for the polycarbonate resin is impaired. When used as a lidar cover, it may collide with pebbles on the road surface, causing problems such as damage to the cover. On the other hand, when an appropriate amount of phosphoric acid ester and phosphoric acid was added, no significant decrease in molecular weight was observed, and it can be seen that the characteristics of the polycarbonate resin can be maintained.

The polycarbonate resin composition of the embodiment of the present invention can be molded by using an ordinary apparatus to produce a molded product, and the optical properties are not substantially changed during the molding. Therefore, the polycarbonate resin composition of the embodiment of the present invention can provide a molded product having appropriate wavelength selectivity and substantially no change in optical characteristics. The molded product can be suitably used for Lidar applications.

Claims (13)

It contains an aromatic polycarbonate resin (A), a colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid (C).
With respect to 100 parts by mass of aromatic polycarbonate resin (A)
Contains the colorant (B) in an amount of 0.01 to 2.0 parts by mass.
Regarding the phosphoric acid or phosphoric acid ester compound (C), the phosphoric acid ester compound (C1) is contained in 0.005 to 0.3 parts by mass, or the phosphoric acid (C2) is contained in 0.0001 to 0.004 parts by mass. A wavelength selective permeable polycarbonate resin composition comprising. The colorant (B) comprises a colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm, and / or a colorant (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm. The wavelength selective transmissive polycarbonate resin composition according to 1. The colorant (B) containing a dye having a maximum absorption wavelength of less than 900 nm includes anthraquinone dye, perinone dye, perylene dye, methine dye, azo dye, quinoline dye, phthalocyanine dye, and heterocyclic dye. The wavelength selective transmissive aromatic polycarbonate resin composition according to claim 1 or 2, which comprises at least one selected from. The wavelength according to claim 2, wherein the colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm includes at least one selected from anthraquinone dye, perylene dye, perylene dye, and methine dye. Selective permeable aromatic polycarbonate resin composition. The wavelength selective transmissive aromatic polycarbonate resin composition according to claim 2 or 4, wherein the colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm contains an anthraquinone-based dye. The wavelength selection according to claim 5, wherein the anthraquinone dye comprises at least one selected from the group consisting of Solvent Yellow 163, Disperse Violet 28, Solvent Blue 97, Solvent Green 28, Solvent Green 3, and Disperse Blue 60. Permeable aromatic polycarbonate-based resin composition. The colorant (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm includes at least one selected from a phthalocyanine dye, an anthraquinone dye and a heterocyclic dye, according to claims 2 and 4 to 6. The wavelength selective transmissive aromatic polycarbonate resin composition according to any one item. Any of claims 1 to 7, wherein the phosphoric acid ester compound or phosphoric acid (C) contains at least one selected from the group consisting of the phosphoric acid ester compound or phosphoric acid represented by the following general formula (I). The wavelength selective permeable polycarbonate resin composition according to item 1.
Equation (I):
O = P (OH) _n (OR) _3-n
[In the general formula (1), R is an alkyl group or an aryl group, which may be the same or different, and n represents an integer of 0 to 2. ] The wavelength-selective permeable aromatic polycarbonate resin composition according to claim 8, wherein the compound represented by the general formula (I) contains a mixture of monostearyl acid phosphate and disstearyl acid phosphate. Further contains at least one selected from the group containing a heat stabilizer, an antioxidant, a mold release agent, an ultraviolet absorber, a colorant, a softener, an antistatic agent, an impact improving agent and a spreading agent. The wavelength selective transmissive aromatic polycarbonate resin composition according to any one of claims 1 to 9. A wavelength-selective permeable polycarbonate resin molded product containing the wavelength-selective permeable aromatic polycarbonate resin composition according to any one of claims 1 to 10. The wavelength selective transmissive resin molded product according to claim 11, which is a lidar cover. A method for producing a wavelength-selective permeable polycarbonate resin molded product, which comprises molding the resin composition according to any one of claims 1 to 10.