JP2022125331A - Wavelength-selectively transparent polycarbonate resin composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: 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

COPYRIGHT: (C)2022,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a wavelength-selective polycarbonate resin composition, and more particularly to a polycarbonate resin composition having wavelength-selective transparency that does not transmit visible light but transmits infrared light.

One of the remote sensing technologies using light is LIDAR (Light Detection and Ranging), which measures the scattered light from pulsed laser irradiation and analyzes the distance to a distant target and the characteristics of that target. Laser Imaging Detection and Ranging ("light detection and ranging" or "laser image detection and ranging", also called "lidar") is known. This technique is similar to radar, replacing radar radio waves with light. The distance to the target can be obtained from the time it takes for the reflected light to be received after the light is emitted. Lidar uses electromagnetic waves with much shorter wavelengths than radar, typically ultraviolet, visible, and near-infrared.

In recent years, automatic driving technology for automobiles is developing rapidly. In order to support Level 3, which is conditional automated driving, and Levels 4 and 5, which do not presuppose driving by a driver, it is necessary to have a function that allows safe autonomous driving on expressways and general roads. Therefore, lidar is attracting attention in addition to cameras and millimeter-wave radars to ensure redundancy in sensing. 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 with better performance.

In Patent Document 1, an epoxy resin cured body 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 suitably used when the laser light wavelength to be emitted is in the range of 850 to 950 nm (see Patent Document 1, Examples 1 and 2, [0050], [Fig. 1]). Furthermore, in Patent Document 1, an epoxy resin cured body containing an azoanthraquinone-based mixture or the like has an average transmittance of 0% in a wavelength range of 380 nm and a light transmittance of 80% or more at a wavelength of 1550 nm. (See Patent Document 1, Examples 1 to 3, [0050], [Fig. 1]).

JP 2017-167484 A

Patent Literature 1 discloses a hardened body of epoxy resin, but it is not necessarily suitable for providing a hardened body of epoxy resin in large quantities at a low cost. Considering the future development of Lidar, it is necessary to provide a composition and a molding thereof that can be mass-produced at a lower cost.

The inventors of the present invention have focused on molded articles of polycarbonate that are excellent in transparency and mechanical strength. However, polycarbonate has a high molding temperature. / Or it has been noticed that the transmission (optical properties) can be changed. Changes in optical properties may cause malfunctions. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a polycarbonate resin composition and a molded product thereof, which have wavelength-selective transmittance properties and whose optical properties do not substantially change even when molded at high temperatures.

As a result of intensive studies by the present inventors, the polycarbonate resin composition containing a coloring agent (e.g., anthraquinone dye) containing a dye having a maximum absorption wavelength of less than 900 nm and a phosphoric acid or phosphate ester compound is The present inventors have found to provide a polycarbonate resin composition and a molded product thereof, which do not cause substantial changes in optical properties even when molded at high temperature and have wavelength selective transmission properties. Furthermore, the inventors have found that such resin compositions and molded articles can be suitably used for lidar applications, and have completed the present invention.

This specification includes the following aspects.
1. An aromatic polycarbonate resin (A), a coloring agent (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid (C),
Per 100 parts by mass of the aromatic polycarbonate resin (A),
0.01 to 2.0 parts by mass of a coloring agent (B),
For phosphoric acid or phosphate ester compound (C), 0.005 to 0.3 parts by mass of phosphate ester compound (C1) or 0.0001 to 0.004 parts by mass of phosphoric acid (C2) A wavelength-selective polycarbonate resin composition comprising:
2. 1 above, wherein the coloring agent (B) contains a coloring agent (B1) containing a dye having a maximum absorption wavelength of less than 700 nm, and/or a coloring agent (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm. A wavelength-selective polycarbonate resin composition as described.
3. The coloring agent (B) containing a dye having a maximum absorption wavelength of less than 900 nm includes anthraquinone dyes, perinone dyes, perylene dyes, methine dyes, azo dyes, quinoline dyes, phthalocyanine dyes, and heterocyclic dyes. 3. The wavelength selective transmission aromatic polycarbonate resin composition according to 1 or 2 above, comprising at least one selected from:
4. 3. The wavelength selection according to 2 above, wherein the colorant (B1) containing a dye having a maximum absorption wavelength of less than 700 nm contains at least one selected from anthraquinone dyes, perinone dyes, perylene dyes, and methine dyes. A transparent aromatic polycarbonate resin composition.
5. 5. The wavelength selective transmission 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 dye.
6. 6. 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 coloring agent (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm contains at least one selected from phthalocyanine dyes, anthraquinone dyes and heterocyclic dyes, 2 and 4 to 6 above. The wavelength selective transmission aromatic polycarbonate resin composition according to any one of 1.
8. Any one of 1 to 7 above, wherein the phosphate ester compound or phosphoric acid (C) contains at least one selected from the group consisting of a phosphate ester compound or phosphoric acid represented by the following general formula (I): 2. The wavelength selective transmission polycarbonate resin composition according to 1.
Formula (I):
O=P(OH) _n (OR) _3-n
[In 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. 9. The wavelength selective transmission aromatic polycarbonate resin composition as described in 8 above, wherein the compound represented by formula (I) contains a mixture of monostearyl acid phosphate and distearyl acid phosphate.
10. It further contains at least one selected from the group containing heat stabilizers, antioxidants, release agents, UV absorbers, colorants, softeners, antistatic agents, impact modifiers and spreading agents. 10. The wavelength selective transmission aromatic polycarbonate resin composition according to any one of 1 to 9 above.
11. 11. A wavelength selective transmission polycarbonate resin molded article containing the wavelength selective transmission aromatic polycarbonate resin composition according to any one of 1 to 10 above.
12. 12. The wavelength selective transmission resin molded article according to 11 above, which is a lidar cover.
13. 11. A method for producing a wavelength-selective polycarbonate resin molded article, comprising 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 using ordinary equipment to produce a molded article, and the optical properties do not substantially change during the molding. Therefore, the polycarbonate resin composition of the embodiment of the present invention can provide a molded article having appropriate wavelength selectivity and substantially no change in optical properties. The molded article can be suitably used for lidar applications.

The wavelength selective transmission polycarbonate resin composition of the embodiment of the present invention comprises an aromatic polycarbonate resin (A), a coloring agent (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid ( C),
Per 100 parts by mass of the aromatic polycarbonate resin (A),
0.01 to 2.0 parts by mass of a coloring agent (B),
For phosphoric acid or phosphate ester compound (C), 0.005 to 0.3 parts by mass of phosphate ester compound (C1) or 0.0001 to 0.004 parts by mass of phosphoric acid (C2) include.

In the embodiment of the present invention, the "aromatic polycarbonate resin (A)" is a polycarbonate resin based on an aromatic compound, and is not particularly limited as long as the aromatic polycarbonate resin composition aimed at by the present invention can be obtained. never Examples of such aromatic polycarbonate resins include polymers obtained by the phosgene method in which various dihydroxydiaryl compounds are reacted with phosgene, or by the transesterification method in which a dihydroxydiaryl compound is reacted with a carbonate such as diphenyl carbonate. 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-tert-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 and 4,4'-dihydroxy-3,3'-dimethyldiphenyl ether; dihydroxydiaryls such as 4,4'-dihydroxydiphenylsulfide sulfides; dihydroxydiarylsulfoxides such as 4,4'-dihydroxydiphenylsulfoxide and 4,4'-dihydroxy-3,3'-dimethyldiphenylsulfoxide; 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxy- Examples include dihydroxydiarylsulfones such as 3,3'-dimethyldiphenylsulfone. These can be used alone or in combination. In addition to these, piperazine, dipiperidylhydroquinone, resorcinol, 4,4'-dihydroxydiphenyl and the like can be used in combination.

Further, the dihydroxydiaryl compound may be used in combination with, for example, a trivalent or higher aromatic compound shown below.

Examples of the trihydric or higher phenol compound include phloroglucin, 4,6-dimethyl-2,4,6-tri-(4-hydroxyphenyl)-heptene, 2,4,6-dimethyl-2,4,6- tri-(4-hydroxyphenyl)-heptane, 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 10,000 to 100,000, more preferably 12,000 to 30,000. Incidentally, when producing such an aromatic polycarbonate resin (A), a molecular weight modifier, a catalyst, etc. can be used as necessary. A commercial item can be used as such aromatic polycarbonate resin.

In an embodiment of the present invention, the coloring agent (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), a pigment It can be selected from (organic, inorganic), etc., and is not particularly limited as long as the aromatic polycarbonate resin composition aimed at by the present invention can be obtained. Both dyes and pigments can be used as such dyes, but it is more preferable to use dyes because usually dyes are less likely to diffusely reflect light on the surface of particles. Colorants (B) containing these dyes can be used alone or in combination of two or more.

Examples of the dye-based dyes include anthraquinone-based dyes, perinone-based dyes, perylene-based dyes, methine-based dyes, azo-based dyes, quinoline-based dyes, phthalocyanine-based dyes, 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 up of smaller particles than the pigment, the dye can be mixed more uniformly with the resin composition, and the cloudiness (haze value) of the molded article can be made smaller, which is preferable. Dyes are more preferred for Lidar.

Examples of the above pigment-based dyes include organic dyes such as azo (soluble azo, insoluble azo) dyes, condensation dyes, threne pigments, quinacridone dyes, dioxazine dyes, and isoindoline dyes; Inorganic pigments such as titanium, iron oxide, chromium oxide, carbon black, ultramarine, barium sulfate, calcium carbonate, zinc oxide, lead sulfate, titanium black and synthetic iron black can be mentioned.

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

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

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

In the resin composition of the embodiment of the present invention, as the (b1) colorant, in addition to the anthraquinone-based dye, a plurality of other dyes can be used in combination. For example, a combination of a pigment and a pigment, a combination of a pigment and a dye, or a combination of a dye and a dye may be used, but it is preferable to use a combination of dyes. 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 transmittance in various wavelength regions.

The dyes described above are not particularly limited as long as the composition of the embodiment of the present invention can be obtained. 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.

Perinone dyes include those commercially available under 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.

Perylene pigments are commercially available with color indexes such as 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, and Solvent Red 179. and dyes that are

Methine dyes include those commercially available under Color Index such as Solvent Orange 80, Solvent Yellow 93, Disperse Yellow 201, and the like.
Examples of quinoline dyes include dyes commercially available under color indexes such as Solvent Yellow 33, Solvent Yellow 98, Solvent Yellow 157, Disperse Yellow 54, and Disperse Yellow 201.

In an embodiment of the present invention, the coloring agent (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.

(B2) The coloring agent preferably contains a phthalocyanine dye, and examples of such a phthalocyanine dye include FDN-002, FDN-023, FDN-024, etc. commercially available from Yamada Kagaku Kogyo.

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

(B2) The coloring agent preferably contains an anthraquinone dye, and examples of such an anthraquinone 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 coloring agent (B) containing a dye having a maximum absorption wavelength of less than 900 nm per 100 parts by mass of the aromatic polycarbonate resin (A). It is preferably contained, more preferably 0.012 to 1.5 parts by mass, even more preferably 0.014 to 1.0 parts by mass. The lower limit of the content of the coloring agent (B) may be 0.02 parts by mass, and may be 0.025 parts by mass.

In the embodiment of the present invention, the phosphate compound or phosphoric acid (C) is not particularly limited as long as the resin composition of the embodiment of the present invention can be obtained. It preferably contains at least one selected from the group consisting of the represented phosphate 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 general formula (I) above, R is preferably an alkyl group having 1 to 30 carbon atoms or an aryl group having 6 to 30 carbon atoms, more preferably an alkyl group having 2 to 25 carbon atoms. be. Also, m is preferably 1 or 2.
Phosphate compounds of formula (I) include, for example, mono- or di-stearyl acid phosphates, stearyl phosphate mixed esters (a mixture of about 50 mol% monostearyl phosphate and about 50 mol% distearyl phosphate (trade name “AX-71” manufactured by Asahi Denka Co., Ltd.) and the like are known.

Phosphoric acid is a non-volatile weak acid, a commercial product can be used, and there is no particular limitation, but examples include phosphoric acid manufactured by Nacalai Tesque, phosphoric acid manufactured by Wako Pure Chemical Industries, and the like.

In the resin composition of the embodiment of the present invention, 0.005 of the phosphate ester compound (C1) is added to 100 parts by mass of the aromatic polycarbonate resin (A) for the phosphate ester compound or phosphoric acid (C). It is preferably contained in an amount of up to 0.3 parts by mass, more preferably in an amount of 0.007 to 0.1 parts by mass, and even more preferably in an amount of 0.009 to 0.08 parts by mass. Or phosphoric acid (C2) is preferably contained in 0.0001 to 0.004 parts by mass, preferably in 0.0001 to 0.001 parts by mass, and in 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 antioxidant (D).

The phosphorus-based antioxidant is not particularly limited as long as the aromatic polycarbonate resin composition aimed at by the present invention can be obtained, but it preferably contains 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 antioxidant (D) is a phosphite ester compound represented by the following formula (11), It preferably contains at least one compound selected from a phosphate 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 antioxidant (D) preferably contains, for example, a compound represented by the following formula (11).

（式中、Ｒ^１は、炭素数１～２０のアルキル基を示し、ａは、０～３の整数を示す。） Formula (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, preferably an alkyl group having 1 to 10 carbon atoms.

Examples of the compound represented by formula (11) include triphenylphosphite, tricresylphosphite, tris(2,4-di-t-butylphenyl)phosphite, trisnonylphenylphosphite and the like. . Among these, tris(2,4-di-t-butylphenyl) phosphite is particularly suitable, and for example, commercially available as Irgafos 168 ("Irgafos" is a registered trademark of BASF Societas Europe) manufactured by BASF. available at

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

（式中、Ｒ^２、Ｒ^３、Ｒ^５及びＲ^６は、それぞれ独立して、水素原子、炭素数１～８のアルキル基、炭素数５～８のシクロアルキル基、炭素数６～１２のアルキルシクロアルキル基、炭素数７～１２のアラルキル基又はフェニル基を示す。Ｒ^４は、水素原子又は炭素数１～８のアルキル基を示す。Ｘは、単結合、硫黄原子又は式：－ＣＨＲ^７－（ここで、Ｒ^７は、水素原子、炭素数１～８のアルキル基又は炭素数５～８のシクロアルキル基を示す）で表される基を示す。Ａは、炭素数１～８のアルキレン基又は式：＊－ＣＯＲ^８－（ここで、Ｒ^８は、単結合又は炭素数１～８のアルキレン基を示し、＊は、酸素側の結合手であることを示す）で表される基を示す。Ｙ及びＺは、いずれか一方がヒドロキシル基、炭素数１～８のアルコキシ基又は炭素数７～１２のアラルキルオキシ基を示し、もう一方が水素原子又は炭素数１～８のアルキル基を示す。） Formula (12):

(wherein R ² , R ³ , R ⁵ and R ⁶ are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, a represents an alkylcycloalkyl group, an aralkyl group having 7 to 12 carbon atoms or a phenyl group, R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, X represents a single bond, a sulfur atom or the formula: -CHR ^7- (here, R ⁷ represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms), A represents a group represented by 1 to 8 carbon atoms; or the formula: *-COR ⁸ — (here, R ⁸ represents a single bond or an alkylene group having 1 to 8 carbon atoms, and * represents a bond on the oxygen side) 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 represents a hydrogen atom or a indicates an alkyl group.)

In formula (12), R ² , R ³ , R ⁵ and R ⁶ each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, or a cycloalkyl group having 5 to 8 carbon atoms. 12 alkylcycloalkyl groups, aralkyl groups having 7 to 12 carbon atoms or phenyl groups.

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

Preferably, R ² , R ³ and R ⁵ are each independently an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms or an alkylcycloalkyl group having 6 to 12 carbon atoms. . In particular, R ² and R ⁵ are each independently preferably a t-alkyl group such as t-butyl group, t-pentyl group, t-octyl group, cyclohexyl group or 1-methylcyclohexyl group. In particular, R ³ has a carbon number such as a methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, sec-butyl group, t-butyl group, t-pentyl group, etc. An alkyl group of 1 to 5 is preferred, and a methyl group, t-butyl group or t-pentyl group is more preferred.

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, an i-propyl group. , n-butyl, i-butyl, sec-butyl, t-butyl, t-pentyl and other alkyl groups having 1 to 5 carbon atoms are more preferred.

In formula (12), R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. The alkyl group having 1 to 8 carbon atoms includes, for example, the alkyl groups exemplified above for 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, more preferably a hydrogen atom or a methyl group.

In formula (12), X represents a single bond, a sulfur atom or a group represented by the formula: —CHR ⁷ —. 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 groups and cycloalkyl groups exemplified in the explanation of R ² , R ³ , R ⁵ and R ⁶ above, respectively. be done. In particular, X is a single bond, a methylene group, or a methylene group substituted with a methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, t-butyl group, or the like. is preferred, and a single bond is more preferred.

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

In 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 represents a hydrogen atom or 1 to 8 carbon atoms. represents an alkyl group of The alkoxy group having 1 to 8 carbon atoms includes, for example, methoxy group, ethoxy group, propoxy group, t-butoxy group, pentyloxy group and the like. The aralkyloxy group having 7 to 12 carbon atoms includes, for example, benzyloxy group, α-methylbenzyloxy group, α,α-dimethylbenzyloxy group and the like. The alkyl group having 1 to 8 carbon atoms includes, for example, the alkyl groups exemplified above for R ² , R ³ , R ⁵ and R ⁶ .

Examples of the compound represented by 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]dioxaphosphepin, 6-[3-(3,5-di-t-butyl-4-hydroxyphenyl)propoxy]-2,4,8, 10-tetra-t-butyldibenzo[d,f][1,3,2]dioxaphosphepin, 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]dioxaphosphosine, 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]dioxaphosphosine and the like . Among these, when the obtained aromatic polycarbonate resin composition is used in fields 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]dioxaphosphepin is suitable, for example, Sumitomo Chemical Co., Ltd. Sumilizer GP (" Sumilizer" is commercially available as a registered trademark).

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

（式中、Ｒ^９及びＲ^１０は、それぞれ独立して、炭素数１～２０のアルキル基又はアルキル基で置換されていてもよいアリール基を示し、ｂ及びｃは、それぞれ独立して、０～３の整数を示す。） Formula (13):

(wherein R ⁹ and R ¹⁰ each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group optionally substituted with an alkyl group; b and c each independently represent 0 Indicates an integer of ~3.)

Examples of the compound represented by 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 from ADEKA Corporation under the trade name of "ADEKA STAB PEP-24G". Adekastab PEP-36 ("Adekastab" is a registered trademark) manufactured by ADEKA Corporation is commercially available.

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

Formula (14):

(wherein R ¹¹ to R ¹⁸ each independently represent an alkyl or alkenyl group having 1 to 3 carbon atoms, R ¹¹ and R ¹² , R ¹³ and R ¹⁴ , R ¹⁵ and R ¹⁶ , R ¹⁷ and R ¹⁸ may combine with 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 each independently is an integer of 0 to 5. X ¹ to X ⁴ each independently represent a single bond or a carbon atom, and when X ¹ to X ⁴ are single bonds, among R ¹¹ to R ²² , Functional groups linked to the single bond are excluded from general formula (14).)

Specific examples of the compound represented by formula (14) include bis(2,4-dicumylphenyl)pentaerythritol diphosphite. This is manufactured by Dover Chemical Co., Ltd., trade name "Doverphos (registered trademark) S-9228", manufactured by ADEKA Co., Ltd., trade name "ADEKASTAB PEP-45" (bis(2,4-dicumylphenyl) pentaerythritol diphos phyto).

Phosphorus antioxidant (D) further includes, for example, [1,1′-biphenyl]-4,4′-diylbis[bis(2,4-di-t-butylphenoxy)phosphine] and the like. For example, Irgafos P-EPQ (trade name) manufactured by BASF and HOSTANOX P-EPQ (trade name) manufactured by Clariant Chemicals are commercially available.

The aromatic polycarbonate resin composition described above, which satisfies at least one selected from the following, is preferred:
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]dioxaphosphepin;
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, containing 9-diphosphaspiro[5,5]undecane; and containing bis(2,4-dicumylphenyl)pentaerythritol diphosphite as the phosphite ester compound represented by the formula (14).

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

In addition to the above components, the aromatic polycarbonate resin composition according to the embodiment may contain, for example, an ultraviolet absorber, which is a component that further improves the weather resistance of the obtained aromatic polycarbonate resin composition, added to the aromatic polycarbonate resin. It can be used as appropriate depending on the application of the molded article obtained by molding the composition.

As the ultraviolet absorber, for example, a benzotriazole-based compound, a triazine-based compound, a benzophenone-based compound, an oxalic acid anilide-based compound, and the like, which are usually blended in a polycarbonate resin, can be used alone or in combination of two or more. can be used.

Examples of benzotriazole compounds include 2-(2-hydroxy-5-t-octylphenyl)benzotriazole, 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 -tetrahydrophthalimidylmethyl)phenol, 2-(2-hydroxy-4-octyloxyphenyl)-2H-benzotriazole, 2-(2-hydroxy-5-tert-octylphenyl)-2H-benzotriazole, 2-[2'-hydroxy-3 -di(1,1-dimethylbenzyl)phenyl]-2H-benzotriazole, 2,2'-methylenbis[6-(2H-benzotriazol-2-yl)4-(1,1,3,3-tetramethylbutyl)phenol], etc. are mentioned. Among them, 2-(2-hydroxy-5-t-octylphenyl)benzotriazole and the like are particularly preferable, and examples thereof include TINUVIN 329 (TINUVIN is a registered trademark) manufactured by BASF, Seesorb manufactured by Shipro Kasei Co., Ltd. 709, Chemisorb 79 manufactured by Chemipro Kasei Co., Ltd., etc. are commercially available.

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

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

Benzophenone compounds include, for example, 2,4-dihydroxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, and the like.

The amount of the ultraviolet absorber is 0 to 1.0 parts by mass, preferably 0 to 0.5 parts by mass, per 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 aromatic polycarbonate resin composition to be obtained may deteriorate. Moreover, 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 large.

Furthermore, the aromatic polycarbonate resin composition according to the embodiment may contain, for example, heat stabilizers, other antioxidants, and release agents (for example, manufactured by Riken Vitamin Co., Ltd.) within a range that does not impair the effects of the present invention. Rikemar S-100A, etc.), various additives such as softeners, antistatic agents and impact modifiers, 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 prepared by mixing an aromatic polycarbonate resin (A), a colorant (B), and a phosphoric acid ester compound or phosphoric acid (C), and optionally A manufacturing method can be exemplified in which the system antioxidant (D), the various additives described above, and a polymer other than the aromatic polycarbonate resin (A) are mixed. As long as the aromatic polycarbonate resin composition aimed at by the present invention can be obtained, the production method is not particularly limited, and the kind and amount of each component can be adjusted as appropriate. 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. Pellets of the aromatic polycarbonate resin composition can be easily obtained by these methods.

The shape and size of the pellets of the aromatic polycarbonate resin composition obtained as described above are not particularly limited as long as they have the shape and size of ordinary resin pellets. For example, the shape of the pellet may be an elliptical columnar shape, a columnar shape, or the like. As for the size of the pellet, it is preferable that the length is about 2 to 8 mm, and in the case of an elliptical cylinder, it is preferable that the long axis of the cross-sectional ellipse is about 2 to 8 mm and the short axis is about 1 to 4 mm. In the case of a cylindrical shape, it is preferable that the diameter of the cross-sectional circle is about 1 to 6 mm. In addition, each pellet obtained 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. , and there is no particular limitation.

Regarding the thermal stability of the resin composition of the embodiment of the present invention, the Δ after 10-minute retention of the molded product is preferably 200 nm or less, and the Δ after 30-minute retention of the molded product is preferably 200 nm or less. More preferably, the Δ after the molded product stays for 60 minutes is 200 nm or less. The thermal stability of the resin composition can be measured by the method described in Examples.

The reliability of the resin composition of the embodiment of the present invention is such that the molded product has a molecular weight of 16,000 or more after being left to stand for 240 hours under conditions of 85 ° C. and 95% RH. It is more preferable that the molecular weight after standing for 240 hours is 16,000 or more. The reliability of the resin composition can be measured by the method described in Examples.

A molded article according to an 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 desired molded article of the present invention can be obtained, the method for producing the molded article is not particularly limited. method.

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

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

EXAMPLES Hereinafter, the present invention will be described specifically and in detail with reference to examples and comparative examples, but these examples are merely one aspect of the present invention, and the present invention is not limited by 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) a dye having a maximum absorption wavelength of less than 900 nm (b1) anthraquinone dye (Solvent Blue 97)
Macrolex Blue RR (trade name) manufactured by Bayer AG, maximum absorption wavelength: 630 nm

(b2) Anthraquinone dye (Solvent Green 28)
Macrolex Green G (trade name) manufactured by Bayer AG, 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 Chemicals Fine Co., Ltd. Maximum absorption wavelength: 640 nm

(b5) methine dye (Disperse Yellow 201)
Macrolex Yellow 6G (trade name) manufactured by Bayer AG, maximum absorption wavelength: 440 nm

(b6) Perylene dye (Solvent Red 179)
Macrolex Red E2G (trade name) manufactured by Bayer AG, maximum absorption wavelength: 480 nm

(b7) Phthalocyanine dye (FDN-002 trade name)
Manufactured by Yamada Chemical Industry Co., Ltd. Maximum absorption wavelength: 807 nm
(b8) Phthalocyanine dye (FDN-023 trade name)
Manufactured by Yamada Chemical Industry Co., Ltd. Maximum absorption wavelength: 790 nm

(b9) Phthalocyanine dye (FDN-024 trade name)
Manufactured by Yamada Chemical Industry Co., Ltd. Maximum absorption wavelength: 830 nm

(b10) anthraquinone dye (SDO-C33 trade name)
Arimoto Chemical Industry Co., Ltd., maximum absorption wavelength: 846 nm

(b11) heterocyclic dye (SDO-C8 trade name)
Arimoto Chemical Industry Co., Ltd. maximum absorption wavelength: 785 nm

（ｃ２）リン酸
ナカライテスク社製リン酸（Ｈ_３ＰＯ_４） (C) Phosphoric acid or phosphate ester compound (c1) Phosphate ester compound Stearyl phosphate mixed ester (a mixture of about 50 mol% monostearyl phosphate and about 50 mol% distearyl phosphate; manufactured by ADEKA Corporation Adekastab "AX-71 (trade name)"

(c2) Phosphoric acid Nacalai Tesque phosphoric acid (H ₃ PO ₄ )

(D) Phosphorus-based antioxidant (d1) Phosphorus-based antioxidant Clariant Chemicals HOSTANOX P-EPQ (trade name)
[1,1′-biphenyl]-4,4′-diylbis[bis(2,4-di-t-
butylphenoxy)phosphine]
Additive

(x1) release agent Rikemal S-100A (trade name) manufactured by Riken Vitamin Co., Ltd.

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

Each of the polycarbonate compositions of Examples 1-13 and Comparative Examples 1-4 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 placed in a cylinder (320 ° C.) for 10, 30, and 60 minutes to obtain molded articles (1 mm). The transmission spectrum of the molded product was evaluated using UH4150 manufactured by Hitachi High-Tech Science, and changes in optical properties were 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 completely decreased (hereinafter referred to as the decrease completion wavelength) was measured. . A case where the wavelength at which the decrease started--the wavelength at which the decrease was completed (.DELTA.) was 200 nm or less was regarded as a non-defective product. A thickness of 200 nm or more was regarded as defective. In the specific wavelength selection filter, it is preferable that the optical spectrum be steep, and if the difference in wavelength is large, that is, if the above Δ is 200 nm or more (if it is not steep), it may cause problems as a filter. Therefore, it is not preferable.

(2) Reliability Each of the polycarbonate resin compositions of Examples 1-13 and Comparative Examples 1-4 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 subjected to a heat aging resistance evaluation of 120 ° C at 85 ° C and 95% RH. and left for 240 hours to obtain samples (for evaluation). Its weight average molecular weight was measured. A weight-average molecular weight of 16,000 or more was defined as a non-defective product, and a weight-average molecular weight of less than 16,000 was defined as a defective product. The weight average molecular weight was measured using an Alliance HPLC system manufactured by Nippon Waters Co., Ltd. as a GPC device. As a column for GPC, Agilent Technologies' PLgel 5 μm MiniMIX-C was used. A solution was prepared by dissolving the sample using dichloromethane as the solvent. The solution was passed through the column at a flow rate of 0.3 mL/min at 40° C. using THF as the eluent to obtain measurements. Using a sample (monodisperse polystyrene) with a known weight-average molecular weight, a gel permeation chromatography (GPC) calibration curve 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 contain an aromatic polycarbonate resin (A), a coloring agent (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 the aromatic polycarbonate resin (A), the colorant (B) is contained in an amount of 0.01 to 2.0 parts by mass, and the phosphoric acid or phosphate ester compound (C) is a phosphate ester It contains 0.005 to 0.3 parts by mass of compound (C1) or 0.0001 to 0.04 parts by mass of phosphoric acid (C2).
The polycarbonate resin compositions of Examples 1 to 13 are excellent in thermal stability and reliability, and are suitable as wavelength selective transmission polycarbonate resin compositions for filters.

In the molded products of Comparative Examples 1 and 2, the transmittance decrease start wavelength is shifted to the long wavelength side, and the wavelength width from the transmittance decrease start wavelength to the decrease completion wavelength is large. of near-infrared rays can not be properly transmitted. Therefore, there is a possibility that the detection capability of Lidar may be degraded. 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, the transmittance decrease start wavelength and wavelength width did not change significantly even when the residence time was 60 minutes. , 850nm-950nm near-infrared can be properly transmitted, and it is clear that it is excellent as a wavelength selection filter.

When an excessive amount of phosphoric acid ester or phosphoric acid is blended as in Comparative Examples 3 and 4, the molecular weight is remarkably lowered after the reliability test, and the impact resistance required of the polycarbonate resin is impaired. When used as a lidar cover, there is a risk that the cover will collide with pebbles or the like on the road surface, causing problems such as breakage of the cover. On the other hand, when appropriate amounts of phosphate ester and phosphoric acid are added, no significant decrease in molecular weight is observed, and it can be seen that the properties of the polycarbonate resin can be maintained.

The polycarbonate resin composition of the embodiment of the present invention can be molded using ordinary equipment to produce molded articles, and the optical properties do not substantially change during the molding. Therefore, the polycarbonate resin composition of the embodiment of the present invention can provide a molded article having appropriate wavelength selectivity and substantially no change in optical properties. The molded article can be suitably used for lidar applications.

Claims (13)

An aromatic polycarbonate resin (A), a coloring agent (B) containing a dye having a maximum absorption wavelength of less than 900 nm, and a phosphoric acid ester compound or phosphoric acid (C),
Per 100 parts by mass of the aromatic polycarbonate resin (A),
0.01 to 2.0 parts by mass of a coloring agent (B),
For phosphoric acid or phosphate ester compound (C), 0.005 to 0.3 parts by mass of phosphate ester compound (C1) or 0.0001 to 0.004 parts by mass of phosphoric acid (C2) A wavelength-selective polycarbonate resin composition comprising: The coloring agent (B) comprises a coloring agent (B1) containing a dye having a maximum absorption wavelength of less than 700 nm and/or a coloring agent (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm. 2. The wavelength selective transmission polycarbonate resin composition according to 1. The coloring agent (B) containing a dye having a maximum absorption wavelength of less than 900 nm includes anthraquinone dyes, perinone dyes, perylene dyes, methine dyes, azo dyes, quinoline dyes, phthalocyanine dyes, and heterocyclic dyes. The wavelength selective transmission aromatic polycarbonate resin composition according to claim 1 or 2, comprising at least one selected from. The wavelength according to claim 2, wherein the coloring agent (B1) containing a dye having a maximum absorption wavelength of less than 700 nm contains at least one selected from anthraquinone dyes, perinone dyes, perylene dyes, and methine dyes. A permselective aromatic polycarbonate resin composition. 5. The wavelength selective transmission 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 dye. 6. 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. A transparent aromatic polycarbonate resin composition. The coloring agent (B2) containing a dye having a maximum absorption wavelength of 700 nm or more and less than 900 nm contains at least one selected from phthalocyanine dyes, anthraquinone dyes and heterocyclic dyes, according to claims 2 and 4 to 6. The wavelength selective transmission aromatic polycarbonate resin composition according to any one of the above items. Any one of claims 1 to 7, wherein the phosphate ester compound or phosphoric acid (C) contains at least one selected from the group consisting of a phosphate ester compound or phosphoric acid represented by the following general formula (I). 2. The wavelength selective transmission polycarbonate resin composition according to claim 1.
Formula (I):
O=P(OH) _n (OR) _3-n
[In 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 transmission aromatic polycarbonate resin composition according to claim 8, wherein the compound represented by general formula (I) contains a mixture of monostearyl acid phosphate and distearyl acid phosphate. It further contains at least one selected from the group containing heat stabilizers, antioxidants, release agents, UV absorbers, colorants, softeners, antistatic agents, impact modifiers and spreading agents. The wavelength selective transmission aromatic polycarbonate resin composition according to any one of claims 1 to 9. A wavelength selective transmission polycarbonate resin molded article containing the wavelength selective transmission aromatic polycarbonate resin composition according to any one of claims 1 to 10. 12. The wavelength selective transmission resin molding according to claim 11, which is a lidar cover. A method for producing a wavelength-selective polycarbonate resin molded product, comprising molding the resin composition according to any one of claims 1 to 10.