Polycarbonate-based resin composition and molded article thereof

Abstract

A polycarbonate resin composition comprising a polycarbonate-polyorganosiloxane copolymer (A), a polycarbonate resin (S), and at least one selected from the group consisting of a light-retardant, an elastomer, a colorant, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin, wherein the resin (S) comprises a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) and a polyorganosiloxane block comprising a repeating structure (A-2) of a structure represented by the general formula (XX), wherein the content of the structural unit (A-1) in the resin (S) is 78.0 mass% or more, and the content of the structural unit represented by the general formula (XX) in the resin (S) is 2.0 mass% or more and 25.0 mass% or less, thereby providing a polycarbonate resin composition having an excellent balance of impact resistance and scratch resistance and a molded article thereof.

Description

Technology Field

[0001] The present invention relates to a polycarbonate-based resin composition and a molded article thereof. Background Technology

[0002] Polycarbonate resin is known to possess excellent properties such as transparency, impact resistance, and flame retardancy. For this reason, it is expected to be widely used in various fields, including the electrical and electronic equipment sector and the automotive sector.

[0003] In recent years, there has been a demand for the development of polycarbonate resins based on plant-derived monomers from the perspective of carbon neutrality. As such, polycarbonate resins manufactured using isosorbide, a plant-derived raw material, have been developed. (See, for example, Patent Document 1).

[0004] Patent Document 1 describes a polycarbonate resin having excellent color and thermal stability and excellent flexibility, and a polycarbonate resin composition having excellent impact resistance and heat resistance made using the same, and a polycarbonate resin having excellent flexibility and excellent color and thermal stability made using a compound made from plant-derived raw materials, and a polycarbonate resin composition having high biomass and excellent impact resistance and heat resistance by using the polycarbonate resin as an impact resistance modifier. Prior art literature

[0005] Japanese Patent Publication No. 2021-91900 The problem to be solved

[0006] According to the inventors' review, it became clear that, for example, the polycarbonate composition described in Patent Document 1 has room for improvement in impact resistance.

[0007] In addition, materials with high hardness generally tend to be brittle, and therefore it is difficult to achieve both impact resistance and scratch resistance; however, in the case of molded articles using polycarbonate resin, it is required to achieve both performances.

[0008] The present invention has been made in consideration of the above circumstances and provides a polycarbonate-based resin composition that can produce a molded article with an excellent balance of impact resistance and scratch resistance while exhibiting the effects of a functional auxiliary material. means of solving the problem

[0009] The inventors have discovered that a polycarbonate-based resin composition comprising specific structural units can provide a molded article with an excellent balance of impact resistance and scratch resistance, while also exhibiting the effect of a functional auxiliary material.

[0010] That is, according to the present invention, a polycarbonate-based resin composition and a molded article as described below are provided.

[0011] [1]

[0012] A polycarbonate-based resin (S) comprising a polycarbonate-polyorganosiloxane copolymer (A), and

[0013] A polycarbonate-based resin composition comprising at least one selected from the group consisting of a light-reducing agent, an elastomer, a colorant, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin, wherein

[0014] The above polycarbonate-based resin (S) comprises a polycarbonate block comprising a structural unit (A-1) represented by the following general formula (1) and a polyorganosiloxane block comprising a repeating structure (A-2) of a structure represented by the following general formula (XX).

[0015] The content of the structural unit (A-1) represented by the general formula (1) in the above polycarbonate resin (S) is 78.0 mass% or more, and

[0016] A polycarbonate resin composition in which the content of a structural unit represented by the following general formula (XX) in the above polycarbonate resin (S) is 2.0 mass% or more and 25.0 mass% or less.

[0017]

[0018] [Of the general formula(XX), R 1 and R 2 Each represents, independently, a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkylaryl group having 7 to 22 carbon atoms.

[0019] [2]

[0020] The polycarbonate resin composition described in [1], wherein the above polycarbonate resin (S) further comprises at least one structural unit (A-3) selected from the structure represented by the following general formulas (3) and (4).

[0021]

[0022] [Of general formulas (3) and (4), R 11 Silver represents a divalent straight-chain or branched aliphatic hydrocarbon group having 2 to 40 carbon atoms, a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, and R 12 represents a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms.

[0023] [3]

[0024] A polycarbonate-based resin composition described in [2], wherein the above structural unit (A-3) has at least one selected from structural units (A-31) to (A-34) represented by the following general formulas (31) to (34).

[0025]

[0026] [In general formula (31), n ​​represents an integer from 2 to 18.]

[0027] [4]

[0028] The above R 1 and R 2 A polycarbonate-based resin composition described in any one of [1] to [3], wherein the group is a methyl group.

[0029] [5]

[0030] A polycarbonate resin composition described in any one of [1] to [4], wherein the light-resistant agent comprises at least one selected from the group consisting of a benzotriazole-based UV absorber, a benzoxazon-based UV absorber, a salicylate-based UV absorber, a malonic acid ester-based UV absorber, an oxalyl-aranid-based UV absorber, a triazine-based UV absorber, a benzophenone-based UV absorber, a cyanoacrylate-based UV absorber, and an amine-based light stabilizer.

[0031] [6]

[0032] A polycarbonate-based resin composition described in any one of [1] to [4], wherein the above elastomer comprises at least one selected from the group consisting of rubbery graft polymers and rubbery graft polymer latex.

[0033] [7]

[0034] A polycarbonate-based resin composition described in any one of [1] to [4], wherein the coloring agent comprises at least one selected from the group consisting of inorganic pigments, organic pigments, and organic dyes.

[0035] [8]

[0036] A polycarbonate-based resin composition described in any one of [1] to [4], wherein the above-mentioned luminous particles comprise at least one selected from the group consisting of particles coated with a metal thin film on at least one selected from the group consisting of metal particles and light interference pigments.

[0037] [9]

[0038] A polycarbonate-based resin composition described in any one of [1] to [4], wherein the above-mentioned inorganic filler comprises at least one selected from glass filler, silica, and carbon fiber.

[0039]

[10]

[0040] A polycarbonate-based resin composition described in any one of [1] to [4], wherein the flame retardant comprises at least one selected from the group consisting of phosphorus-based flame retardants and metal salt-based flame retardants.

[0041]

[11]

[0042] A polycarbonate-based resin composition described in any one of [1] to [4], wherein the above acrylic resin comprises at least one type selected from the group consisting of a (co)polymer of a monomer selected from the group consisting of acrylic acid, methacrylic acid, acrylic acid ester, methacrylic acid ester, acrylonitrile, and methacrylonitrile.

[0043]

[12]

[0044] [1]~

[11] A molded article of a polycarbonate resin composition as described in any one of [1]~

[11] . Effects of the invention

[0045] According to the present invention, a polycarbonate-based resin composition can be provided that can obtain a molded article having an excellent balance of impact resistance and scratch resistance. Specific details for implementing the invention

[0046] Hereinafter, a polycarbonate-based resin composition and a molded article of the polycarbonate-based resin composition according to the present invention will be described in detail. In this specification, specifications considered to be preferred may be adopted at any time, and combinations of preferred specifications may be considered more preferred. In this specification, the notation "XX~YY" means "XX or more and YY or less."

[0047] With respect to a single technical matter, if there are multiple lower limits such as "x or greater," or multiple upper limits such as "y or less," it shall be possible to arbitrarily select and combine from said upper and lower limits.

[0048] With respect to the compounds and chemical structures described in this specification, if they have multiple stereoisomers and structural isomers, they shall be deemed to include all stereoisomers and structural isomers. However, this shall not apply unless specifically stated otherwise.

[0049] 1. Polycarbonate-based resin composition

[0050] The polycarbonate-based resin composition according to the present invention comprises a polycarbonate-based resin (S) comprising a polycarbonate-polyorganosiloxane copolymer (A), and at least one selected from the group consisting of a light-resistant agent, a luminous particle, a coloring agent, an inorganic filler, an elastomer, a flame retardant, and an acrylic resin.

[0051] According to the polycarbonate-based resin composition of the present invention, a molded article with an excellent balance of impact resistance and scratch resistance can be obtained.

[0052] [Polycarbonate resin(S)]

[0053] The polycarbonate-based resin (S) comprises a polycarbonate-polyorganosiloxane copolymer (A), a polycarbonate block comprising a structural unit (A-1) represented by the following general formula (1), and a polyorganosiloxane block comprising a repeating structure (A-2) of a structure represented by the following general formula (XX).

[0054]

[0055] Among the general formula (XX), R 1 and R 2 Each represents, independently, a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkylaryl group having 7 to 22 carbon atoms.

[0056] Polycarbonate Block

[0057] The polycarbonate block containing the polycarbonate resin (S) is represented by the following general formula (X) and includes a structural unit (A-1) represented by the general formula (1).

[0058]

[0059] Among the above general formula (X), R 10 The group may represent a divalent aliphatic hydrocarbon group having 2 to 40 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, and these groups may be substituted by substituents and may also include at least one atom selected from the group consisting of oxygen atoms, nitrogen atoms, sulfur atoms, and halogen atoms.

[0060] In this specification, "various hydrocarbon groups of divalent" are substituents formed by removing two hydrogen atoms from a hydrocarbon.

[0061] A structural unit (A-1) represented by general formula (1) preferably includes a structural unit represented by the following general formula (11), and more preferably consists only of a structural unit represented by the following general formula (11).

[0062]

[0063] The content of the structural unit (A-1) represented by the general formula (1) in the polycarbonate resin (S) according to the present invention is 78.0 mass% or more, preferably 80.0 mass% or more, more preferably 81.0 mass% or more, in order to obtain a polycarbonate resin composition with excellent impact resistance and a molded article thereof.

[0064] For example, “content of a structural unit (A-1) represented by general formula (1) in a polycarbonate resin (S)” is the mass of a structural unit (A-1) represented by general formula (1) relative to the total mass of a structural unit (A-1) represented by general formula (1), a structural unit represented by general formula (XX), and structural units (A-31) to (A-34) represented by general formulas (31) to (34).

[0065] The method for measuring the content of the structural unit (A-1) represented by the general formula (1) in the polycarbonate resin (S) is not particularly limited, but for example, nuclear magnetic resonance (NMR) analysis may be used.

[0066] The polycarbonate block containing the polycarbonate-based resin (S) may additionally include at least one structural unit (A-3) selected from the structural units represented by the following general formulas (3) and (4). By including the structural unit (A-3) in the polycarbonate block, the impact resistance of the molded article can be further improved.

[0067]

[0068] Among the above general formula (3), R 11 The carbon is a divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms, a divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms, a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, preferably a divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms, a divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms, or a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms.

[0069] Among the above general formula (4), R 12 The group is a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, preferably a divalent alicyclic hydrocarbon group having 4 to 20 carbon atoms, and more preferably a divalent alicyclic hydrocarbon group having 5 to 15 carbon atoms.

[0070] In terms of reducing the melt flow rate of the polycarbonate resin (S), and improving the tensile modulus, tensile strength (yield), and glass transition temperature, among the general formulas (3) and (4), R 11 and R 12 It is preferable that it comprises at least one carbon atom selected from third and fourth carbon atoms, more preferably at least one carbon atom selected from third and fourth carbon atoms, and a divalent alicyclic hydrocarbon group having 3 to 20 carbon atoms, more preferably at least one carbon atom selected from third and fourth carbon atoms, and a divalent alicyclic hydrocarbon group having 3 to 8 carbon atoms, and particularly, from the perspective of the availability of raw materials, more preferably at least one carbon atom selected from third and fourth carbon atoms, and a divalent alicyclic hydrocarbon group having 3 to 6 carbon atoms.

[0071] Among the above general formulas (3) and (4), R 11 and R 12 a. The reason why the melt flow rate of the polycarbonate-polyorganosiloxane copolymer (A) is reduced and the tensile modulus, tensile strength (yield) and glass transition temperature are improved by including at least one carbon atom selected from tertiary and quaternary carbon atoms is not certain, but it is thought that tertiary and quaternary carbon atoms have low mobility, so the structure including them tends to be rigid.

[0072] Among the above general formulas (3) and (4), R 11 and R 12a. The reason why the melt flow rate of the polycarbonate resin (S) is reduced and the tensile modulus, tensile strength (yield) and glass transition temperature are improved by including divalent alicyclic hydrocarbon groups having 3 to 20 carbon atoms is not certain, but it is thought that the mobility of the molecules is restricted by the cyclic structure, and the structure containing them tends to become rigid.

[0073] Meanwhile, the structural unit (A-1) is not included in the structural unit (A-3).

[0074] R in the above general formula (3) 11 The divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms and the divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms may be substituted by substituents, and at least one atom selected from the group consisting of oxygen atoms, nitrogen atoms, sulfur atoms, and halogen atoms may be included in the carbon chain of the hydrocarbon group.

[0075] R in the above general formula (3) 11 Examples of the divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms or the divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms shown here include, for instance, an ethylene group, an n-propylene group, an isopropylene group, an n-butylene group, an isobutylene group, an n-pentylene group, a neopentylene group, an n-hexylene group, an n-heptylene group, an n-octylene group, a 2-ethylhexylene group, an n-nonylene group, an n-decylene group, an n-undecylene group, an n-dodecylene group, an n-tridecylene group, an n-tetradecylene group, an n-pentadecylene group, an n-hexadecylene group, an n-heptadecylene group, and an n-octadecylene group, and preferably, an n-propylene group, an n-butylene group, an n-pentylene group, a neopentylene group, an n-hexylene group, It is an n-heptylene group, an n-octylene group, an n-nonylene group, or an n-decylene group, and more preferably an n-butylene group, an n-pentylene group, a neopentylene group, an n-hexylene group, an n-heptylene group, or an n-octylene group.

[0076] R in the above general formula (3) 11The divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms represented here may be substituted by a substituent and may also include at least one atom selected from the group consisting of oxygen, nitrogen, sulfur, and halogen atoms.

[0077] R in the above general formula (3) 11 Examples of divalent alicyclic hydrocarbon groups having 3 to 40 carbon atoms that represent this include, for instance, cyclopropylene group, cyclobutylene group, cyclopentylene group, cyclohexylene group, cyclooctylene group, cyclodecylene group, cyclotetradecylene group, adamantylene group, bicycloheptylene group, bicyclodecylene group, tricyclodecylene group, spirobicyclohexylene group, decahydronaphtylene group, tricyclotetradecylene group, and pentacyclopentadecylene group, and preferably, cyclohexylene group, tricyclodecylene group, pentacyclopentadecylene group, decahydronaphtylene group, tricyclotetradecylene group, bicycloheptylene group, or adamantylene group, and more preferably, cyclohexylene group or tricyclodecylene group.

[0078] R in the above general formula (3) 11 The cyclohexylene group represented by this includes various isomers represented by the following general formula (3a). Specifically, examples include 1,2-cyclohexylene group, 1,3-cyclohexylene group, 1,4-cyclohexylene group, etc.

[0079]

[0080] Among the general formula (3a), R 101 It is silver, a hydrogen atom, or an alkyl group having 1 to 12 carbon atoms.

[0081] R in the above general formula (3) 11 The tricyclodecylene group or pentacyclopentadecylene group represented by this includes various isomers represented by the following general formula (3b). n' is 0 or 1.

[0082]

[0083] R in the above general formula (3) 11 The decahydronaphtylene group or tricyclotetradecylene group represented by this includes various isomers represented by the following general formula (3c). Specifically, examples include 2,6-decahydronaphtylene group, 1,5-decahydronaphtylene group, 2,3-decahydronaphtylene group, etc. n" is 0 or 1.

[0084]

[0085] R in the above general formula (3) 11 The bicycloheptylene group represented by this includes various isomers represented by the following general formula (3d). Specifically, examples include the 2,3-bicycloheptylene group, the 2,5-bicycloheptylene group, etc.

[0086]

[0087] R in the above general formula (3) 11 The adamantylene group represented by this includes various isomers represented by the following general formula (3e). Specifically, examples include the 1,3-adamantylene group.

[0088]

[0089] R in the above general formula (3) 11 The divalent aromatic hydrocarbon group having 6 to 20 carbon atoms represented here may be substituted by a substituent and may also include at least one atom selected from the group consisting of oxygen, nitrogen, sulfur, and halogen atoms.

[0090] R in the above general formula (3) 11 Examples of the divalent aromatic hydrocarbon groups having 6 to 20 carbon atoms that represent this include the aromatic hydrocarbon group represented by the following general formula (3f), the 1,4-phenylene group, the 1,3-phenylene group, and the 1,2-phenylene group, and preferably the aromatic hydrocarbon group represented by the following general formula (3f).

[0091]

[0092] Among the above general formula (3f), R 102 and R 103 Each represents independently a halogen atom, a C1-6 alkyl group, or a C1-6 alkoxy group. X represents a single bond, a C1-8 alkylene group, a C2-8 alkylidene group, a C5-15 cycloalkylene group, a C5-15 cycloalkylidene group, a fluorenediyl group, a C7-15 arylalkylene group, a C7-15 arylalkylidene group, -S-, -SO-, -SO2-, -O-, or -CO-. s and t each represent independently integers from 0 to 4.

[0093] Among the above general formula (3f), R 102 and R 103 Examples of halogen atoms that each represent independently include fluorine atoms, chlorine atoms, bromine atoms, and iodine atoms.

[0094] R 102 and R 103 Examples of alkyl groups that each of these appear independently include methyl groups, ethyl groups, n-propyl groups, isopropyl groups, various butyl groups ("various" refers to those including straight-chain and all branched-chain types, and the same applies hereinafter), various pentyl groups, and various hexyl groups. R 102 and R 103 As for the alkoxy groups that each of these represent independently, examples include cases where the alkyl group portion is the above alkyl group.

[0095] Examples of the alkylene group represented by X include a methylene group, an ethylene group, a trimethylene group, a tetramethylene group, a hexamethylene group, etc., and an alkylene group having 1 to 5 carbon atoms is preferred. Examples of the alkylidene group represented by X include an ethylidene group, an isopropylidene group, etc. Examples of the cycloalkylene group represented by X include a cyclopentanediyl group or a cyclohexanediyl group, and a cycloalkylene group having 5 to 10 carbon atoms is preferred. Examples of the arylene group represented by X include a phenylene group, a naphthylene group, a biphenylene group, etc. Examples of the cycloalkylidene group represented by X include a cyclohexylidene group, a 3-methylcyclohexylidene group, a 3,5,5-trimethylcyclohexylidene group, a cyclododecylidene group, a 2-adamantylidene group, etc., and a cycloalkylidene group having 5 to 12 carbon atoms is preferred, and a cycloalkylidene group having 5 to 8 carbon atoms is more preferred. Examples of the aryl portion of the arylalkylene group represented by X include a cyclic aryl group having 6 to 14 carbon atoms, such as a phenyl group, a naphthyl group, a biphenyl group, or anthryl group. Examples of the aryl portion of the arylalkylidene group represented by X include a cyclic aryl group having 6 to 14 carbon atoms, such as a phenyl group, a naphthyl group, a biphenyl group, or anthryl group.

[0096] s and t each independently represent integers from 0 to 4, preferably from 0 to 2, more preferably 0 or 1. Among these, it is suitable that s and t are 0 and X is a single bond or an alkylene group having 1 to 8 carbon atoms, or that s and t are 0 and X is an alkylidene group, particularly an isopropylidene group.

[0097] R in the above general formula (4) 12 As a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms represented by, R in general formula (3) 11Examples include divalent alicyclic hydrocarbon groups having 3 to 40 carbon atoms, preferably cyclohexylene, tricyclodecylene, pentacyclopentadecylene, decahydronaphtylene, tricyclotetradecylene, bicycloheptylene, or adamantylene, and more preferably cyclohexylene or tricyclodecylene.

[0098] In order to obtain a polycarbonate-based resin composition and a molded article thereof with superior impact resistance, it is preferable that the structural unit (A-3) comprises at least one selected from structural units (A-31) to (A-34) represented by the following general formulas (31) to (34), more preferable that it comprises at least one selected from structural units (A-31) to (A-33), more preferable that it comprises at least one selected from structural units (A-31) to (A-33), and more preferable that it is structural unit (A-32).

[0099]

[0100] In the general formula (31), n ​​represents an integer from 2 to 18, preferably from 3 to 10, more preferably from 4 to 8.

[0101] When the structural unit (A-3) includes at least one selected from structural units (A-31) to (A-34), the total content of structural units (A-31) to (A-34) in the structural unit (A-3) is preferably 90.0 mass% or more, more preferably 93.0 mass% or more, even more preferably 95.0 mass% or more, and preferably 100.0 mass% or less, more preferably 100.0 mass%.

[0102] The polycarbonate block containing the polycarbonate resin (S) preferably includes a structural unit (A-1) represented by general formula (1) and a structural unit (A-3) represented by general formula (3), more preferably includes at least one selected from the structural unit (A-1) represented by general formula (1) and structural units (A-31) to (A-34) represented by general formulas (31) to (34), and more preferably includes a structural unit (A-1) represented by general formula (1) and a structural unit (A-32) represented by general formula (32).

[0103] The content of the structural unit (A-1) in the polycarbonate block is preferably 80.0 mol% or more, more preferably 82.0 mol% or more, even more preferably 84.0 mol% or more, from the perspective of obtaining a polycarbonate-based resin composition with excellent impact resistance and a molded article thereof, and preferably 100.0 mol% or less, more preferably 98.0 mol% or less, even more preferably 96.0 mol% or less, and particularly preferably 92.0 mol% or less.

[0104] When the polycarbonate block includes a structural unit (A-3), the content of the structural unit (A-3) in the polycarbonate block is preferably 1.0 mol% or more, more preferably 2.0 mol% or more, even more preferably 4.0 mol% or more, from the perspective of obtaining a polycarbonate-based resin composition with better impact resistance and a molded article thereof, and preferably 20.0 mol% or less, more preferably 18.0 mol% or less, even more preferably 16.0 mol% or less.

[0105] The content of structural unit (A-1) and structural unit (A-3) in the polycarbonate block is calculated by nuclear magnetic resonance (NMR) measurement.

[0106] Polyorganosiloxane block

[0107] The polyorganosiloxane block included in the polycarbonate-based resin (S) comprises a repeating structure (A-2) of a structure represented by at least the following general formula (XX). The polyorganosiloxane block is a structural unit comprising at least one structure represented by the following general formula (XX) existing between the two closest polycarbonate bonds on the main chain of the polycarbonate-polyorganosiloxane copolymer (A), and preferably, is a repeating structure of a structure represented by the following general formula (XX) represented by the following general formula (2).

[0108]

[0109] Among the general formula (XX), R 1 and R 2 Each represents, independently, a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkylaryl group having 7 to 22 carbon atoms.

[0110]

[0111] Among the general formula (2), R 1 and R 2 is R in the above general formula (XX). 1 and R 2 It has the same meaning as . a-1 is the number of repetitions of the structure represented by the general formula (XX), and a represents an integer from 2 to 500.

[0112] Among the general formula (2), R 1 and R 2 Examples of halogen atoms represented by R include fluorine, chlorine, bromine, and iodine atoms. 1 and R 2 Examples of C1 to C10 alkyl groups represented by R include methyl groups, ethyl groups, n-propyl groups, isopropyl groups, various butyl groups, various pentyl groups, and various hexyl groups. 1 and R 2As for the alkoxy group having 1 to 10 carbon atoms represented by, an alkoxy group in which the alkyl portion is identical to the above alkyl group may be cited. R 1 and R 2 Examples of aryl groups having 6 to 12 carbon atoms represented by R include phenyl groups and naphthyl groups. 1 and R 2 As an alkylaryl group having 7 to 22 carbon atoms, examples include an alkylaryl group in which the alkyl group portion is the same as the alkyl group and the aryl group portion is the same as the aryl group.

[0113] R 1 and R 2 It is preferable that all are hydrogen atoms, C1-6 alkyl groups, C1-6 alkoxy groups, C6-12 aryl groups, or C7-22 arylalkyl groups, more preferable that all are C1-6 alkyl groups, and even more preferable that all are methyl groups.

[0114] It is preferable that the polyorganosiloxane block has a structure represented by the following general formula (21).

[0115]

[0116] Among the general formula (21), R 1 , R 2 , and a is R in the above general formula (2). 1 , R 2 It has the same meaning as , and a. R 3 and R 4 Each represents, independently, a hydrogen atom, a halogen atom, a C1-10 alkyl group, a C1-10 alkoxy group, a C6-12 aryl group, or a C7-22 alkylaryl group. 6 Silver represents an arylene group having 6 to 20 carbon atoms, an alkylene group having 1 to 10 carbon atoms, or an alkylarylene group having 7 to 22 carbon atoms, wherein these groups, in at least one of the main chain and the side chain, are -O-, -COO-, -CO-, -S-, -NH-, and -NR 111It may include at least one group selected from the group consisting of -. Multiple R 8 Each may be the same or different and represents an arylene group having 6 to 20 carbon atoms, an alkylene group having 1 to 10 carbon atoms, or an alkylarylene group having 7 to 22 carbon atoms, and these groups, in at least one of the main chain and the side chain, are -O-, -COO-, -CO-, -S-, -NH-, and -NR 111 It may include at least one group selected from the group consisting of -. R 111 represents an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms. a represents an integer from 2 to 500, and b represents an integer from 2 to 200. u and z represent 0 or 1.

[0117] In addition, the polyorganosiloxane block preferably has a structure represented by the following general formula (22).

[0118]

[0119] Among the general formula (22), R 1 ~R 4 , R 6 , R 8 , a, b, u, and z are R in the above general formula (2) and general formula (21). 1 ~R 4 , R 6 , R 8 It has the same meaning as , a, b, u, and z. R 5 ...represents an arylene group having 6 to 20 carbon atoms, an alkylene group having 1 to 10 carbon atoms, or an alkylarylene group having 7 to 22 carbon atoms, wherein these groups, in at least one of the main chain and the side chain, are -O-, -COO-, -CO-, -S-, -NH-, and -NR 111 It may include at least one group selected from the group consisting of -. R 7Silver represents an arylene group having 6 to 20 carbon atoms, an alkylene group having 1 to 10 carbon atoms, or an alkylarylene group having 7 to 22 carbon atoms, wherein these groups, in at least one of the main chain and the side chain, are -O-, -COO-, -CO-, -S-, -NH-, and -NR 111 It may include at least one group selected from the group consisting of -. R 111 represents the same meaning as above. b1 represents an integer from 2 to 200. u1 and z1 represent 0 or 1.

[0120] Additionally, the polyorganosiloxane block may have at least one of the structures represented by the following general formulas (23) to (26).

[0121]

[0122] Among general formulas (23) to (26), R 1 ~R 8 , a, b, b1, u, u1, z, and z1 are R in the above general formula (2), general formula (21), and general formula (22). 1 ~R 8 , a, b, b1, u, u1, z, and z1 have the same meaning. However, -(O) combining with β z - and -(O) z1 In this case, z and z1 are 1. β represents a divalent group derived from a diisocyanate compound or a divalent group derived from a dicarboxylic acid compound.

[0123] Among general formulas (23) to (26), R 3 and R 4 As a halogen atom represented as, R 1 and R 2 Examples similar to the halogen atom represented by R 1 ~R 4 As an alkyl group having 1 to 10 carbon atoms represented by, R 1 and R 2 Examples include the same as the alkyl group represented by R. 3 and R4 As for the carbon 1 to 10 alkoxy groups represented by, R 1 and R 2 Examples similar to the alkoxy group represented by R 3 and R 4 As for the aryl group having 6 to 12 carbon atoms represented as, R 1 and R 2 Examples similar to the aryl group represented by R 3 and R 4 As an alkylaryl group having 7 to 22 carbon atoms represented by, R 1 and R 2 Examples of the same as the alkylaryl group represented by can be cited.

[0124] R 3 and R 4 As for the groups, it is preferable that all are hydrogen atoms, C1-6 alkyl groups, C1-6 alkoxy groups, C6-12 aryl groups, or C7-22 arylalkyl groups, and it is more preferable that all are C1-6 alkyl groups, and R 3 and R 4 It is more desirable that all of them are methyl groups.

[0125] R 5 , R 6 , R 7 , or R 8 Examples of arylene groups having 6 to 20 carbon atoms represented by R include phenylene groups and naphthylene groups. 5 , R 6 , R 7 , or R 8 Examples of alkylene groups having 1 to 10 carbon atoms represented by include methylene groups, dimethylene groups, trimethylene groups, methyl-substituted dimethylene groups, and various butylene groups. The various butylene groups are preferably tetramethylene groups. R 5 , R 6 , R 7 , or R 8As the alkylarylene group having 7 to 22 carbon atoms represented by, examples include an alkylarylene group in which the alkyl group portion is identical to the alkylene group and the arylene group portion is identical to the arylene group. However, these groups, in at least one of the main chain and the side chain, include -O-, -COO-, -CO-, -S-, -NH-, and NR 111 It may include at least one group selected from the group consisting of -. R 111 represents an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms. R 111 Examples of C1 to C10 alkyl groups represented by R include methyl groups, ethyl groups, n-propyl groups, isopropyl groups, various butyl groups, various pentyl groups, and various hexyl groups. 111 Examples of aryl groups having 6 to 10 carbon atoms that appear as such include phenyl groups and naphthyl groups.

[0126] R 5 and R 6 It is preferable that all are alkylene groups having 1 to 10 carbon atoms or alkylarylene groups having 7 to 22 carbon atoms, more preferable that all are alkylene groups having 1 to 5 carbon atoms or alkylarylene groups having 7 to 11 carbon atoms, and even more preferable that all are trimethylene groups or trimethyleneylphenylene groups (-CH2CH2CH2-Ph-).

[0127] R 7 and R 8 It is preferable that all are alkylene groups having 1 to 10 carbon atoms, more preferable that all are alkylene groups having 1 to 5 carbon atoms, more preferable that all are dimethylene groups, methyl-substituted dimethylene groups (-CH2CHMe-), trimethylene groups, or tetramethylene groups, and more preferable that all are dimethylene groups.

[0128] In general formula (2) and general formulas (21) to (26), a represents the number obtained by adding 1 to the number of repetitions of the structural unit represented by general formula (XX), that is, the number of repetitions of Si atoms, and is also called the chain length. a is preferably 2 or more, more preferably 10 or more, more preferably 15 or more, more preferably 20 or more, and preferably 300 or less, more preferably 95 or less, more preferably 70 or less, more preferably 50 or less. And in general formula (2) and general formulas (21) to (26), a is preferably an integer of 2 to 300, more preferably 10 to 95, more preferably 15 to 70, more preferably 20 to 50.

[0129] The average value of a in the polycarbonate resin (S) is preferably 2 or more, more preferably 5 or more, even more preferably 10 or more, even more preferably 15 or more, particularly preferably 20 or more, and preferably 300 or less, more preferably 95 or less, even more preferably 70 or less, and even more preferably 50 or less. And, the average value of a in the polycarbonate resin (S) is preferably 2 to 300, more preferably 10 to 95, even more preferably 15 to 70, even more preferably 15 to 50, and even more preferably 20 to 50.

[0130] The average value of a in the polycarbonate resin (S) is calculated by nuclear magnetic resonance (NMR) measurement.

[0131] In general formulas (21) to (26), b and b1 represent the number of repeating units, each independently preferably 2 or more, more preferably 5 or more, even more preferably 8 or more, even more preferably 10 or more, even more preferably 12 or more, and preferably 200 or less, more preferably 100 or less, even more preferably 50 or less, even more preferably 30 or less, even more preferably 25 or less, and even more preferably 20 or less. And, in general formulas (21) to (26), b and b1 each independently represent an integer preferably 2 to 200, more preferably 5 to 100, even more preferably 8 to 50, even more preferably 10 to 30, even more preferably 12 to 25, and even more preferably 12 to 20.

[0132] In the polycarbonate resin (S), the average value of b, the average value of b1, and the average value b2 when b and b1 are combined are preferably 2 or more, more preferably 5 or more, even more preferably 8 or more, even more preferably 10 or more, even more preferably 12 or more, and preferably 200 or less, more preferably 100 or less, even more preferably 50 or less, even more preferably 30 or less, even more preferably 25 or less, and even more preferably 20 or less. The above range is preferred due to the ease of obtaining raw materials. Also, in the polycarbonate resin (S), the average value of b, the average value of b1, and the average value b2 when b and b1 are combined are preferably 2 to 200, more preferably 5 to 100, even more preferably 8 to 50, even more preferably 10 to 30, even more preferably 12 to 25, and even more preferably 12 to 20.

[0133] The average value b2 in the polycarbonate resin (S) is calculated by nuclear magnetic resonance (NMR) measurement.

[0134] In general formula (21), u is preferably 1. Also, in general formulas (22) to (26), u and u1 are preferably 1 each, and it is more preferable that u and u1 are both 1.

[0135] In general formula (21), it is preferable that z is 1. Also, in general formulas (22) to (26), it is preferable that z and z1 are each 1, and more preferable that both z and z1 are 1.

[0136] In the general formula (21), R 1 ~R 4 All are methyl groups, and R 6 This is a trimethylene group, and R 8 This is a dimethylene group, and it is more preferable that z is 1, and R 1 ~R 4 All are methyl groups, and R 6 This is a trimethylene group, and R 8 It is more preferable that this is a dimethylene group, z is 1, and u is 1.

[0137] In general formulas (22) to (26), R 1 ~R 4 All are methyl groups, and R 5 and R 6 These are all trimethylene groups, and R 7 and R 8 These are all dimethylene groups, and z and z 1 These are all 1, and u and u 1 It is more desirable for all of these to be 1.

[0138] In general formulas (23) to (26), β is a divalent group derived from a diisocyanate compound or a divalent group derived from a dicarboxylic acid compound. Examples of dicarboxylic acid compounds include dicarboxylic acid, anhydride of dicarboxylic acid, halide of dicarboxylic acid, and diester of dicarboxylic acid and lower alcohol. Examples of lower alcohols include methanol, ethanol, and propanol. Examples of β are divalent groups represented by the following general formulas (i) to (v).

[0139]

[0140] It is preferable that the polyorganosiloxane block does not include a branched structure from the perspective of obtaining a polycarbonate-based resin composition with excellent impact resistance and a molded article thereof.

[0141] The content of the structural unit represented by the general formula (XX) in the polycarbonate resin (S) according to the present invention is 2.0 mass% or more, preferably 3.0 mass% or more, more preferably 4.0 mass% or more, more preferably 5.0 mass% or more, from the perspective of obtaining a polycarbonate resin composition and a molded article thereof that has an excellent balance of impact resistance and scratch resistance, and 25.0 mass% or less, preferably 20.0 mass% or less, more preferably 15.0 mass% or less, more preferably 10.0 mass% or less.

[0142] For example, “content of a structural unit represented by general formula (XX) in a polycarbonate resin (S)” is the ratio of the mass of a structural unit represented by general formula (XX) to the total mass of a structural unit (A-1) represented by general formula (1), a structural unit represented by general formula (XX), and structural units (A-31) to (A-34) represented by general formulas (31) to (34).

[0143] The method for measuring the content of structural units represented by the general formula (XX) in the polycarbonate resin (S) is not particularly limited, but, for example, nuclear magnetic resonance (NMR) analysis may be used.

[0144] The polycarbonate-based resin (S) according to the present invention may consist only of one or more of the following polycarbonate-polyorganosiloxane copolymers (A), or may include the following polycarbonate-based resin (P) other than the following polycarbonate-polyorganosiloxane copolymer (A) (hereinafter referred to as "polycarbonate-based resin (P)").

[0145] The content of the polycarbonate-polyorganosiloxane copolymer (A) in the polycarbonate-based resin (S) is preferably 90 mass% or more, more preferably 95 mass% or more, and even more preferably 98 mass% or more, from the perspective of improving the impact resistance of the molded article. The upper limit of the content of the polycarbonate-polyorganosiloxane copolymer (A) in the polycarbonate-based resin (S) is not particularly limited, but from the perspective of obtaining a polycarbonate-based resin composition having desired properties, it is, for example, 100 mass% or less.

[0146] The number average molecular weight (Mn) of the polycarbonate resin (S) is preferably 5,000 or more, more preferably 6,000 or more, even more preferably 7,000 or more, even more preferably 8,000 or more, and preferably 30,000 or less, more preferably 25,000 or less, even more preferably 20,000 or less, and even more preferably 15,000 or less.

[0147] The number average molecular weight (Mn) of the polycarbonate-based resin (S) is a weighted average of the number average molecular weights (Mn) of each copolymer or resin included in the polycarbonate-based resin (S), and each number average molecular weight (Mn) can be measured by the same method as the number average molecular weight (Mn) of the polycarbonate-polyorganosiloxane copolymer.

[0148] The weight average molecular weight (Mw) of the polycarbonate resin (S) is preferably 20,000 or more, more preferably 23,000 or more, even more preferably 25,000 or more, and preferably 60,000 or less, more preferably 50,000 or less, even more preferably 45,000 or less, and even more preferably 43,000 or less.

[0149] The weight average molecular weight (Mw) of the polycarbonate-based resin (S) is a weighted average of the weight average molecular weights (Mw) of each copolymer or resin included in the polycarbonate-based resin (S), and each weight average molecular weight (Mw) can be measured by the same method as the weight average molecular weight (Mw) of the polycarbonate-polyorganosiloxane copolymer.

[0150] [Polycarbonate-polyorganosiloxane copolymer (A)]

[0151] The polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) comprises a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) and a polyorganosiloxane block comprising a repeating structure (A-2) of the structure represented by the general formula (XX).

[0152] (Polycarbonate block)

[0153] As a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) included in a polycarbonate-polyorganosiloxane copolymer (A), a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) in a polycarbonate-based resin (S) can be likewise cited. The preferred form is also the same.

[0154] In the polycarbonate-polyorganosiloxane copolymer (A), the content of the polycarbonate block is preferably 75.0 mass% or more, more preferably 80.0 mass% or more, even more preferably 85.0 mass% or more, and preferably 100.0 mass% or less, more preferably 95.0 mass% or less, and even more preferably 90.0 mass% or less, from the perspective of obtaining a polycarbonate-based resin composition with excellent impact resistance and a molded article thereof.

[0155] In the polycarbonate-polyorganosiloxane copolymer (A), the content of the structural unit (A-1) in the polycarbonate block is preferably 73.0 mass% or more, more preferably 80.0 mass% or more, even more preferably 85.0 mass% or more, from the perspective of obtaining a polycarbonate-based resin composition with excellent impact resistance and a molded article thereof, and preferably 100.0 mass% or less, more preferably 97.0 mass% or less, and even more preferably 95.0 mass% or less.

[0156] When a polycarbonate-polyorganosiloxane copolymer (A) comprises a structural unit (A-3) represented by the following general formula (3) or (4), the content of the structural unit (A-3) in the polycarbonate-polyorganosiloxane copolymer (A) is preferably 1.0 mass% or more, more preferably 3.0 mass% or more, even more preferably 4.0 mass% or more, and preferably 25.0 mass% or less, more preferably 20.0 mass% or less, even more preferably 15.0 mass% or less, from the perspective of obtaining a polycarbonate-based resin composition and a molded article thereof with better impact resistance.

[0157] When a polycarbonate-polyorganosiloxane copolymer (A) comprises a structural unit (A-3) represented by the following general formula (3) or (4), the content of the structural unit (A-3) in the polycarbonate block of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 1.0 mass% or more, more preferably 3.0 mass% or more, even more preferably 5.0 mass% or more, and preferably 25.0 mass% or less, more preferably 20.0 mass% or less, even more preferably 15.0 mass% or less, from the perspective of obtaining a polycarbonate-based resin composition and a molded article thereof with better impact resistance.

[0158] The content of polycarbonate blocks, structural units (A-1), and structural units (A-3) in the polycarbonate-polyorganosiloxane copolymer (A) is calculated by nuclear magnetic resonance (NMR) measurement.

[0159] In this specification, "content of structural unit (A-1) in polycarbonate-polyorganosiloxane copolymer (A)" refers to a structural unit (A-1), a structural unit represented by the general formula (XX), a structural unit represented by the following general formula (Y), -OR T It is a percentage of the mass of the structural unit (A-1) relative to the total mass of the structural unit (A-3) contained therein, and the terminal structure indicated by, and as needed. The same applies to the “content of the structural unit (A-3) in the polycarbonate-polyorganosiloxane copolymer (A).”

[0160]

[0161] Among the general formula (Y), R Y is, R 5 , R 6 , R 7 , or R 8 is. R Y Ga R 5 In the case of, z 0 is u1, and R Y Ga R 6 In the case of, z0 is u, and R Y Ga R 7 In the case of, z 0 is z1, and R Y Ga R 8 In the case of, z 0 is z2. R 5 , R 6 , R 7 , R 8 , u1, u, z1, and z2 represent R in the following <polyorganosiloxane block>. 5 , R 6 , R 7 , R 8 , u1, u, z1, and z2 have the same meaning.

[0162] (Polyorganosiloxane block)

[0163] As a polyorganosiloxane block comprising a repeating structure (A-2) of a structure represented by the general formula (XX) included in a polycarbonate-polyorganosiloxane copolymer (A), a polyorganosiloxane block comprising a repeating structure (A-2) of a structure represented by the general formula (XX) in a polycarbonate-based resin (S) can likewise be cited. The preferred form is also the same.

[0164] The content of the structural unit represented by the general formula (XX) in the polycarbonate-polyorganosiloxane copolymer (A) is preferably 2.0 mass% or more, more preferably 3.0 mass% or more, even more preferably 4.0 mass% or more, and preferably 25.0 mass% or less, more preferably 20.0 mass% or less, even more preferably 15.0 mass% or less, and even more preferably 10.0 mass% or less, from the perspective of obtaining a polycarbonate-based resin composition with excellent impact resistance and a molded article thereof.

[0165] In this specification, "content of a structural unit represented by the general formula (XX) in a polycarbonate-polyorganosiloxane copolymer (A)" refers to a structural unit (A-1), a structural unit represented by the general formula (XX), a structural unit represented by the general formula (Y), -OR T It is a percentage of the mass of the structural unit represented by the general formula (XX) relative to the total mass of the terminal structure represented by and, if necessary, the structural unit (A-3) containing.

[0166] The content of polyorganosiloxane blocks in the polycarbonate-polyorganosiloxane copolymer (A) is preferably 2.0 mass% or more, more preferably 3.0 mass% or more, even more preferably 4.0 mass% or more, even more preferably 7.5 mass% or more, particularly preferably 9.5 mass% or more, and preferably 20.0 mass% or less, more preferably 15.0 mass% or less, even more preferably 13.0 mass% or less, from the perspective of obtaining a polycarbonate-based resin composition and a molded article thereof with an excellent balance of impact resistance and scratch resistance.

[0167] In this specification, "content of polyorganosiloxane blocks in polycarbonate-polyorganosiloxane copolymer (A)" refers to a structural unit (A-1), a structural unit represented by the general formula (XX), a structural unit represented by the general formula (Y), -OR T It is a percentage of the total mass of the structural unit represented by the general formula (XX) and the structural unit represented by the general formula (Y) relative to the total mass of the terminal structure represented by, and, if necessary, the structural unit (A-3).

[0168] The content of polyorganosiloxane blocks and structural units represented by general formula (XX) in the polycarbonate-polyorganosiloxane copolymer (A) is calculated by nuclear magnetic resonance (NMR) measurement.

[0169] (Terminal structure of polycarbonate-polyorganosiloxane copolymer (A))

[0170] The polycarbonate-polyorganosiloxane copolymer (A) is, as in one embodiment, -OR T It may include a terminal structure indicated by R. T is the Ar described later 1 , Ar 2 , Ar 3 , Ar 4 , Ar 5 , Ar 6 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , is a p-cumylphenyl group or a p-(tert-butyl)phenyl group, preferably Ar 1 , Ar 2 , Ar 3 , Ar 4 , Ar 5 , Ar 6 , or p-(tert-butyl)phenyl group.

[0171] Ar 1 , Ar 2 , Ar 3 , Ar 4 , Ar 5 , or Ar 6 It is preferable that it be a phenyl group, an o-tolyl group, an m-tolyl group, a p-tolyl group, a chlorophenyl group, or a naphthyl group, and more preferable that it be a phenyl group.

[0172] In the polycarbonate-polyorganosiloxane copolymer (A), -OR T The content of the terminal structure represented by is preferably 0.01 mass% or more, more preferably 0.2 mass% or more, even more preferably 0.5 mass% or more, preferably 3.0 mass% or less, more preferably 2.5 mass% or less, and even more preferably 2.0 mass% or less. And, in the polycarbonate-polyorganosiloxane copolymer (A), -OR TThe content of the terminal structure represented by -OR is preferably 0.01 to 3.0 mass%, more preferably 0.2 to 2.5 mass%, and even more preferably 0.5 to 2.0 mass%. T The more terminal structures represented by [this] there are, the fewer terminal hydroxyl groups derived from the diol monomer are reduced, and the heat resistance and glass transition temperature of the resin increase.

[0173] -OR T The content of the terminal structure indicated by is calculated by nuclear magnetic resonance (NMR) measurement.

[0174] The number average molecular weight (Mn) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 5,000 or more, more preferably 8,000 or more, and even more preferably 10,000 or more, from the perspective of obtaining a polycarbonate-based resin composition with excellent impact resistance and a molded article thereof, and is preferably 30,000 or less, more preferably 25,000 or less, even more preferably 20,000 or less, and even more preferably 15,000 or less. And, the number average molecular weight (Mn) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 5,000 to 30,000, more preferably 8,000 to 25,000, even more preferably 8,000 to 20,000, and even more preferably 8,000 to 15,000.

[0175] In particular, in order to obtain a polycarbonate-based resin composition and a molded article thereof with better impact resistance, the number average molecular weight (Mn) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 8,000 or more, more preferably 9,000 or more, and even more preferably 10,000 or more.

[0176] The weight average molecular weight (Mw) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 20,000 or more, more preferably 23,000 or more, and even more preferably 25,000 or more, and preferably 60,000 or less, more preferably 50,000 or less, even more preferably 45,000 or less, and even more preferably 43,000 or less. And, the weight average molecular weight (Mw) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 20,000 to 60,000, more preferably 23,000 to 50,000, even more preferably 25,000 to 45,000, and even more preferably 25,000 to 43,000.

[0177] In particular, in order to obtain a polycarbonate-based resin composition and a molded article thereof with better impact resistance, the weight average molecular weight (Mw) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 25,000 or more, more preferably 26,000 or more, and even more preferably 27,000 or more.

[0178] The viscosity average molecular weight (Mv) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 5,000 or more, more preferably 8,000 or more, even more preferably 10,000 or more, even more preferably 15,000 or more, and preferably 30,000 or less, more preferably 25,000 or less, even more preferably 20,000 or less, and even more preferably 18,000 or less. And, the viscosity average molecular weight (Mv) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 5,000 to 30,000, more preferably 8,000 to 25,000, even more preferably 10,000 to 23,000, even more preferably 14,000 to 20,000, and even more preferably 16,000 to 18,000.

[0179] In particular, in order to obtain a polycarbonate-based resin composition and a molded article thereof with better impact resistance, the viscosity average molecular weight (Mv) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 10,000 or more, more preferably 11,000 or more, and even more preferably 12,000 or more.

[0180] Although it is not certain why impact resistance is improved by adjusting the number average molecular weight, weight average molecular weight, and viscosity average molecular weight to the above ranges, it is estimated as follows.

[0181] It is believed that impact resistance is improved because the entanglement and interaction between polymer chains are strengthened by the number average molecular weight, weight average molecular weight, and viscosity average molecular weight becoming above a certain level.

[0182] The ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of the polycarbonate-polyorganosiloxane copolymer (A) is preferably 1.8 or more, more preferably 2.2 or more, even more preferably 2.5 or more, and preferably 3.2 or less, more preferably 3.0 or less, even more preferably 2.9 or less. And, the ratio (Mw / Mn) is preferably 1.8 to 3.2, more preferably 2.2 to 3.0, and even more preferably 2.5 to 2.9.

[0183] A polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) may be, in one embodiment, a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) and a structural unit (A-31) represented by the general formula (31), and a polyorganosiloxane block comprising a structure (A-2) represented by the general formula (2), wherein the molar ratio (A-31 / A-1) of the structural unit (A-31) to the structural unit (A-1) and the content x of the structural unit represented by the general formula (XX) in the polycarbonate-polyorganosiloxane copolymer (A) satisfy the following conditions (C1) or (D1).

[0184] Condition (C1): A-31 / A-1 is 1.0 / 99.0 or greater and 25.0 / 75.0 or less, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0185] Condition (D1): A-31 / A-1 is 1.0 / 99.0 or greater and 30.0 / 70.0 or less, and x is 4.0 mass% or greater and 10.0 mass% or less.

[0186] A-31 / A-1 in the above condition (C1) is preferably 20.0 / 80.0 or less, more preferably 17.0 / 83.0 or less. And, A-31 / A-1 in the above condition (C1) is preferably 1.0 / 99.0 to 20.0 / 80.0, more preferably 1.0 / 99.0 to 17.0 / 83.0.

[0187] A-31 / A-1 in the above condition (D1) is preferably 25.0 / 75.0 or less, more preferably 17.0 / 83.0 or less. And, A-31 / A-1 in the above condition (D1) is preferably 1.0 / 99.0 to 25.0 / 75.0, more preferably 1.0 / 99.0 to 17.0 / 83.0.

[0188] In the above polycarbonate-polyorganosiloxane copolymer (S-1), the total content of the structural unit (A-1) and (A-31) is preferably 70.0 mol% or more, more preferably 80.0 mol% or more, even more preferably 90.0 mol% or more, and even more preferably 100.0 mol% in the polycarbonate block.

[0189] A polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) may be, in one embodiment, a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) and a structural unit (A-32) represented by the general formula (32), and a polyorganosiloxane block comprising a structure (A-2) represented by the general formula (2), wherein the total content of the structural unit (A-1) and (A-32) in the polycarbonate block included in the polycarbonate-polyorganosiloxane copolymer (A) is 90.0 mol% or more, and the molar ratio of the structural unit (A-32) to the structural unit (A-1) (A-32 / A-1) and the content x of the general formula (XX) satisfy the following conditions (C2) or (D2). there is.

[0190] Condition (C2): A-32 / A-1 is 1.0 / 99.0 or greater and 35.0 / 65.0 or less, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0191] Condition (D2): A-32 / A-1 is 1.0 / 99.0 or greater and 27.0 / 73.0 or less, and x is 4.0 mass% or greater and 10.0 mass% or less.

[0192] A-32 / A-1 in the above condition (C2) is preferably 32.0 / 68.0 or less, more preferably 28.0 / 72.0 or less. And, A-32 / A-1 in the above condition (C2) is preferably 1.0 / 99.0 to 32.0 / 68.0, more preferably 1.0 / 99.0 to 28.0 / 72.0.

[0193] A-32 / A-1 in the above condition (D2) is preferably 24.0 / 76.0 or less, more preferably 21.0 / 79.0 or less. And, A-32 / A-1 in the above condition (D2) is preferably 1.0 / 99.0 to 24.0 / 76.0, more preferably 1.0 / 99.0 to 21.0 / 79.0.

[0194] In the above polycarbonate-polyorganosiloxane copolymer (S-2), the total content of the structural units (A-1) and (A-32) is preferably 100.0 mol% in the polycarbonate block.

[0195] The polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) may be, in one embodiment, a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1) and a structural unit (A-33) represented by the general formula (33), and a polyorganosiloxane block comprising a structure (A-2) represented by the general formula (2), wherein the molar ratio (A-33 / A-1) of the structural unit (A-33) to the structural unit (A-1) and the content x of the general formula (XX) satisfy the following conditions (C3) or (D3).

[0196] Condition (C3): A-33 / A-1 is 1.0 / 99.0 or greater and 40.0 / 60.0 or less, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0197] Condition (D3): A-33 / A-1 is 1.0 / 99.0 or greater and 35.0 / 65.0 or less, and x is 4.0 mass% or greater and 10.0 mass% or less.

[0198] A-33 / A-1 in the above condition (C3) is preferably 35.0 / 65.0 or less, more preferably 30.0 / 70.0 or less. And, A-33 / A-1 in the above condition (C3) is preferably 1.0 / 99.0 to 35.0 / 65.0, more preferably 1.0 / 99.0 to 30.0 / 70.0.

[0199] A-33 / A-1 in the above condition (D3) is preferably 33.0 / 67.0 or less, more preferably 31.0 / 69.0 or less. And, A-33 / A-1 in the above condition (D3) is preferably 1.0 / 99.0 to 33.0 / 67.0, more preferably 1.0 / 99.0 to 31.0 / 69.0.

[0200] In the above polycarbonate-polyorganosiloxane copolymer (S-3), the total content of the structural unit (A-1) and (A-33) is preferably 70.0 mol% or more, more preferably 80.0 mol% or more, even more preferably 90.0 mol% or more, and even more preferably 100.0 mol% in the polycarbonate block.

[0201] A polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) comprises, in one embodiment, a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1), a structural unit (A-32) represented by the general formula (32), and a structural unit (A-33) represented by the general formula (33), and a polyorganosiloxane block comprising a structure (A-2) represented by the general formula (2), wherein the molar ratio of the sum of the structural units (A-32) and (A-33) to the structural unit (A-1) ((sum of A-32 and A-33) / A-1)), the molar ratio of the structural unit (A-32) to the structural unit (A-33) (A-32 / A-33), and the content x of the general formula (XX) are the following conditions (C41), (C42), (C43), (D41), It may be a polycarbonate-polyorganosiloxane copolymer (S-4) satisfying (D42) or (D43).

[0202] Condition (C41): A-32 / A-33 is 60.0 / 40.0 or greater and 99.0 / 1.0 or less, (sum of A-32 and A-33) / A-1 is 1.0 / 99.0 or greater and 39.0 / 61.0 or less, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0203] Condition (C42): A-32 / A-33 is 40.0 / 60.0 or greater and less than 60.0 / 40.0, (sum of A-32 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 31.0 / 69.0, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0204] Condition (C43): A-32 / A-33 is 1.0 / 99.0 or greater and less than 40.0 / 60.0, (sum of A-32 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 46.0 / 54.0, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0205] Condition (D41): A-32 / A-33 is 60.0 / 40.0 or greater and 99.0 / 1.0 or less, (sum of A-32 and A-33) / A-1 is 1.0 / 99.0 or greater and 32.0 / 68.0 or less, and x is 4.0 mass% or greater and 10.0 mass% or less.

[0206] Condition (D42): A-32 / A-33 is 40.0 / 60.0 or greater and less than 60.0 / 40.0, (sum of A-32 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 36.0 / 64.0, and x is 4.0 mass% or greater and less than or equal to 10.0 mass%.

[0207] Condition (D43): A-32 / A-33 is 1.0 / 99.0 or greater and less than 40.0 / 60.0, (sum of A-32 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 41.0 / 59.0, and x is 4.0 mass% or greater and less than or equal to 10.0 mass%.

[0208] Under the above condition (C41), (sum of A-32 and A-33) / A-1 is preferably 35.0 / 65.0 or less, more preferably 31.0 / 69.0 or less. And under the condition (C41), (sum of A-32 and A-33) / A-1 is preferably 1.0 / 99.0 to 35.0 / 65.0, more preferably 1.0 / 99.0 to 31.0 / 69.0.

[0209] Under the above condition (C42), (sum of A-32 and A-33) / A-1 is preferably 30.0 / 70.0 or less, more preferably 25.0 / 75.0 or less. And under the condition (C42), (sum of A-32 and A-33) / A-1 is preferably 1.0 / 99.0 to 30.0 / 70.0, more preferably 1.0 / 99.0 to 25.0 / 75.0.

[0210] Under the above condition (C43), (sum of A-32 and A-33) / A-1 is preferably 42.0 / 58.0 or less, more preferably 37.0 / 63.0 or less. And under the condition (C43), (sum of A-32 and A-33) / A-1 is preferably 1.0 / 99.0 to 42.0 / 58.0, more preferably 1.0 / 99.0 to 37.0 / 63.0.

[0211] Under the above condition (D41), (sum of A-32 and A-33) / A-1 is preferably 28.0 / 72.0 or less, more preferably 25.0 / 75.0 or less. And under the condition (D41), (sum of A-32 and A-33) / A-1 is preferably 1.0 / 99.0 to 28.0 / 72.0, more preferably 1.0 / 99.0 to 25.0 / 75.0.

[0212] Under the above condition (D42), (sum of A-32 and A-33) / A-1 is preferably 31.0 / 69.0 or less, more preferably 28.0 / 72.0 or less. And under the condition (D42), (sum of A-32 and A-33) / A-1 is preferably 1.0 / 99.0 to 31.0 / 69.0, more preferably 1.0 / 99.0 to 28.0 / 72.0.

[0213] Under the above condition (D43), (sum of A-32 and A-33) / A-1 is preferably 35.0 / 65.0 or less, more preferably 32.0 / 68.0 or less. And under the condition (D43), (sum of A-32 and A-33) / A-1 is preferably 1.0 / 99.0 to 35.0 / 65.0, more preferably 1.0 / 99.0 to 32.0 / 68.0.

[0214] In the above polycarbonate-polyorganosiloxane copolymer (S-4), the total content of the structural units (A-1), (A-32) and (A-33) is preferably 70.0 mol% or more, more preferably 80.0 mol% or more, even more preferably 90.0 mol% or more, and even more preferably 100.0 mol% in the polycarbonate block.

[0215] A polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) comprises, in one embodiment, a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1), a structural unit (A-31) represented by the general formula (31), and a structural unit (A-33) represented by the general formula (33), and a polyorganosiloxane block comprising a structure (A-2) represented by the general formula (2), wherein the molar ratio of the sum of the structural units (A-31) and (A-33) to the structural unit (A-1) ((sum of A-31 and A-33) / A-1)), the molar ratio of the structural unit (A-31) to the structural unit (A-33) (A-31 / A-33), and the content x of the general formula (XX) are the following conditions (C51), (C52), (C53), (D51), It may be a polycarbonate-polyorganosiloxane copolymer (S-5) satisfying (D52) or (D53).

[0216] Condition (C51): A-31 / A-33 is 60.0 / 40.0 or greater and 99.0 / 1.0 or less, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and 39.0 / 61.0 or less, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0217] Condition (C52): A-31 / A-33 is 40.0 / 60.0 or greater and less than 60.0 / 40.0, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 43.0 / 57.0, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0218] Condition (C53): A-31 / A-33 is 1.0 / 99.0 or greater and less than 40.0 / 60.0, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 46.0 / 54.0, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0219] Condition (D51): A-31 / A-33 is 60.0 / 40.0 or greater and 99.0 / 1.0 or less, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and 34.0 / 66.0 or less, and x is 4.0 mass% or greater and 10.0 mass% or less.

[0220] Condition (D52): A-31 / A-33 is 40.0 / 60.0 or greater and less than 60.0 / 40.0, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and less than 38.0 / 62.0, and x is 4.0 mass% or greater and less than 10.0 mass%.

[0221] Condition (D53): A-31 / A-33 is 1.0 / 99.0 or greater and less than 40.0 / 60.0, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 41.0 / 59.0, and x is 4.0 mass% or greater and less than or equal to 10.0 mass%.

[0222] Under the above condition (C51), (sum of A-31 and A-33) / A-1 is preferably 34.0 / 66.0 or less, more preferably 29.0 / 71.0 or less. And under the condition (C51), (sum of A-31 and A-33) / A-1 is preferably 1.0 / 99.0 to 34.0 / 66.0, more preferably 1.0 / 99.0 to 29.0 / 71.0.

[0223] Under the above condition (C52), (sum of A-31 and A-33) / A-1 is preferably 38.0 / 62.0 or less, more preferably 33.0 / 67.0 or less. And under the condition (C52), (sum of A-31 and A-33) / A-1 is preferably 1.0 / 99.0 to 38.0 / 62.0, more preferably 1.0 / 99.0 to 33.0 / 67.0.

[0224] Under the above condition (C53), (sum of A-31 and A-33) / A-1 is preferably 41.0 / 59.0 or less, more preferably 36.0 / 64.0 or less. And under the condition (C53), (sum of A-31 and A-33) / A-1 is preferably 1.0 / 99.0 to 41.0 / 59.0, more preferably 1.0 / 99.0 to 36.0 / 64.0.

[0225] Under the above condition (D51), (sum of A-31 and A-33) / A-1 is preferably 28.0 / 72.0 or less, more preferably 22.0 / 78.0 or less. And under the condition (D51), (sum of A-31 and A-33) / A-1 is preferably 1.0 / 99.0 to 28.0 / 72.0, more preferably 1.0 / 99.0 to 22.0 / 78.0.

[0226] Under the above condition (D52), (sum of A-31 and A-33) / A-1 is preferably 32.0 / 68.0 or less, more preferably 26.0 / 74.0 or less. And under the condition (D52), (sum of A-31 and A-33) / A-1 is preferably 1.0 / 99.0 to 32.0 / 68.0, more preferably 1.0 / 99.0 to 26.0 / 74.0.

[0227] Under the above condition (D53), (sum of A-31 and A-33) / A-1 is preferably 35.0 / 65.0 or less, more preferably 31.0 / 69.0 or less. And under the condition (D53), (sum of A-31 and A-33) / A-1 is preferably 1.0 / 99.0 to 35.0 / 65.0, more preferably 1.0 / 99.0 to 31.0 / 69.0.

[0228] In the above polycarbonate-polyorganosiloxane copolymer (S-5), the total content of the structural units (A-1), (A-31) and (A-33) is preferably 70.0 mol% or more, more preferably 80.0 mol% or more, even more preferably 90.0 mol% or more, and even more preferably 100.0 mol% in the polycarbonate block.

[0229] A polycarbonate-polyorganosiloxane copolymer (A) comprising a polycarbonate-based resin (S) comprises, in one embodiment, a polycarbonate block comprising a structural unit (A-1) represented by the general formula (1), a structural unit (A-31) represented by the general formula (31), and a structural unit (A-32) represented by the general formula (32), and a polyorganosiloxane block comprising a structure (A-2) represented by the general formula (2), wherein the molar ratio of the sum of the structural units (A-31) and (A-32) to the structural unit (A-1) ((sum of A-31 and A-32) / A-1)), the molar ratio of the structural unit (A-31) to the structural unit (A-32) (A-31 / A-32), and the content x of the general formula (XX) are the following conditions (C61), (C62), (C63), (D61), It may be a polycarbonate-polyorganosiloxane copolymer (S-6) satisfying (D62) or (D63).

[0230] Condition (C61): A-31 / A-32 is 60.0 / 40.0 or greater and 99.0 / 1.0 or less, (sum of A-31 and A-32) / A-1 is 1.0 / 99.0 or greater and 35.0 / 65.0 or less, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0231] Condition (C62): A-31 / A-32 is 40.0 / 60.0 or greater and less than 60.0 / 40.0, (sum of A-31 and A-32) / A-1 is 1.0 / 99.0 or greater and less than 35.0 / 65.0, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0232] Condition (C63): A-31 / A-32 is 1.0 / 99.0 or greater and less than 40.0 / 60.0, (sum of A-31 and A-33) / A-1 is 1.0 / 99.0 or greater and less than or equal to 43.0 / 57.0, and x is 1.0 mass% or greater and less than 4.0 mass%.

[0233] Condition (D61): A-31 / A-32 is 60.0 / 40.0 or greater and 99.0 / 1.0 or less, (sum of A-31 and A-32) / A-1 is 1.0 / 99.0 or greater and 29.0 / 71.0 or less, and x is 4.0 mass% or greater and 10.0 mass% or less.

[0234] Condition (D62): A-31 / A-32 is 40.0 / 60.0 or greater and less than 60.0 / 40.0, (sum of A-31 and A-32) / A-1 is 1.0 / 99.0 or greater and less than or equal to 29.0 / 71.0, and x is 4.0 mass% or greater and less than or equal to 10.0 mass%.

[0235] Condition (D63): A-31 / A-32 is 1.0 / 99.0 or greater and less than 40.0 / 60.0, (sum of A-31 and A-32) / A-1 is 1.0 / 99.0 or greater and less than or equal to 37.0 / 63.0, and x is 4.0 mass% or greater and less than or equal to 10.0 mass%.

[0236] Under the above condition (C61), (sum of A-31 and A-32) / A-1 is preferably 31.0 / 69.0 or less, more preferably 26.0 / 74.0 or less. And under the condition (C61), (sum of A-31 and A-32) / A-1 is preferably 1.0 / 99.0 to 31.0 / 69.0, more preferably 1.0 / 99.0 to 26.0 / 74.0.

[0237] Under the above condition (C62), (sum of A-31 and A-32) / A-1 is preferably 31.0 / 69.0 or less, more preferably 27.0 / 73.0 or less. And under the condition (C62), (sum of A-31 and A-32) / A-1 is preferably 1.0 / 99.0 to 31.0 / 69.0, more preferably 1.0 / 99.0 to 27.0 / 73.0.

[0238] Under the above condition (C63), (sum of A-31 and A-32) / A-1 is preferably 38.0 / 62.0 or less, more preferably 33.0 / 67.0 or less. And under the condition (C63), (sum of A-31 and A-32) / A-1 is preferably 1.0 / 99.0 to 38.0 / 62.0, more preferably 1.0 / 99.0 to 33.0 / 67.0.

[0239] Under the above condition (D61), (sum of A-31 and A-32) / A-1 is preferably 25.0 / 75.0 or less, more preferably 18.0 / 82.0 or less. And under the condition (D61), (sum of A-31 and A-32) / A-1 is preferably 1.0 / 99.0 to 25.0 / 75.0, more preferably 1.0 / 99.0 to 18.0 / 82.0.

[0240] Under the above condition (D62), (sum of A-31 and A-32) / A-1 is preferably 25.0 / 75.0 or less, more preferably 19.0 / 81.0 or less. And under the condition (D62), (sum of A-31 and A-32) / A-1 is preferably 1.0 / 99.0 to 25.0 / 75.0, more preferably 1.0 / 99.0 to 19.0 / 81.0.

[0241] Under the above condition (D63), (sum of A-31 and A-32) / A-1 is preferably 31.0 / 69.0 or less, more preferably 27.0 / 73.0 or less. And under the condition (D63), (sum of A-31 and A-32) / A-1 is preferably 1.0 / 99.0 to 31.0 / 69.0, more preferably 1.0 / 99.0 to 27.0 / 73.0.

[0242] In the above polycarbonate-polyorganosiloxane copolymer (S-6), the total content of the structural units (A-1), (A-31) and (A-32) is preferably 70.0 mol% or more, more preferably 80.0 mol% or more, even more preferably 90.0 mol% or more, and even more preferably 100.0 mol% in the polycarbonate block.

[0243] The content x in the above conditions (C1), (C2), (C3), (C41), (C42), (C43), (C51), (C52), (C53), (C61), (C62) and (C63) is preferably 2.0 mass% or more, more preferably 3.0 mass% or more.

[0244] In the above conditions (D1), (D2), (D3), (D41), (D42), (D43), (D51), (D52), (D53), (D61), (D62), and (D63), the content x is preferably 4.3 mass% or more, more preferably 4.5 mass% or more, also preferably 9.0 mass% or less, more preferably 6.0 mass% or less. And, in these conditions, the content x is preferably 4.3 to 9.0 mass%, more preferably 4.5 to 6.0 mass%.

[0245] Polycarbonate resin (P)

[0246] As a polycarbonate resin (P), for example, a polycarbonate resin that does not include a repeating structure (A-2) of a structure represented by general formula (XX), includes a structural unit (A-1) represented by general formula (1), and includes at least one structural unit (A-3) selected from structures represented by general formulas (3) and (4).

[0247] In addition, as a polycarbonate-polyorganosiloxane copolymer, the polycarbonate-polyorganosiloxane copolymer may be used, for example, by including a polycarbonate block that does not include a structural unit (A-1) represented by general formula (1) and a polyorganosiloxane block that includes a repeating structure (A-2) of a structure represented by general formula (XX).

[0248] The structural unit (A-1), structural unit (A-3), and repeating structure (A-2) included in the polycarbonate-based resin (P) may be the same as the structural unit (A-1), structural unit (A-3), and repeating structure (A-2) included in the polycarbonate-based resin (S) and the polycarbonate-polyorganosiloxane copolymer (A). The preferred form is also the same.

[0249] <Method for manufacturing polycarbonate-polyorganosiloxane copolymer (A)>

[0250] A polycarbonate-polyorganosiloxane copolymer (A) containing a polycarbonate-based resin (S) can be manufactured, for example, by using a diol monomer (a1) and a polyorganosiloxane (a2), and, if necessary, additionally using a diol monomer (a3) ​​as raw material monomers.

[0251] <<Diol monomer(a1)>>

[0252] The diol monomer (a1) has a structure represented by the following general formula (1a). The diol monomer (a1) preferably comprises a diol represented by the following general formula (11a), and more preferably consists of a diol represented by the following general formula (11a).

[0253]

[0254]

[0255] <<Diol monomer(a3)>>

[0256] When the polycarbonate-polyorganosiloxane copolymer (A) includes a structural unit (A-3), it additionally includes a diol monomer (a3) ​​as a raw material monomer.

[0257] The diol monomer (a3) ​​is preferably at least one diol selected from structures represented by general formulas (3a) and (4a).

[0258]

[0259] Among general formulas (3a) and (4a), R 11 and R 12 It is as stated above, and the desirable thing is the same.

[0260] Meanwhile, the diol monomer (a1) is not included in the diol monomer (a3).

[0261] <<Polyorganosiloxane(a2)>>

[0262] Polyorganosiloxane (a2) preferably comprises a polyorganosiloxane structure represented by the following general formula (21a).

[0263]

[0264] Among general formula (21a), R 1 ~R 8 , a, b, u, and z are as described above, and the preferred ones are as well. However, z at the ends is 1, that is, the hydrogen atoms at both ends are bonded to oxygen atoms.

[0265] The polyorganosiloxane (a2) preferably comprises a polyorganosiloxane represented by the following general formula (22a).

[0266]

[0267] Among the general formula (22a), R 1 ~R 8 , a, b, u, u1, z, and z1 are as described above, and the preferred ones are as well. However, z and z1 present at both ends are 1, that is, the hydrogen atoms at both ends are bonded to oxygen atoms.

[0268] The polyorganosiloxane (a2) preferably comprises at least one of the polyorganosiloxanes represented by the following general formulas (23a) to (26a).

[0269]

[0270] Among general formulas (23a) to (26a), R 1 ~R 8 , a, b, b1, u, u1, z, z1, and β are as described above, and the preferred ones are as well. However, in general formulas (23a) to (26a), z and z1 at the ends are 1, that is, the hydrogen atoms at the ends are bonded to oxygen atoms.

[0271] The method of manufacturing polyorganosiloxane (a2) is not particularly limited. For example, according to the method described in Japanese Patent Publication No. Hei 11-217390, α,ω-dihydrogenorganopentasiloxane is synthesized by reacting cyclotrisiloxane and disiloxane in the presence of an acidic catalyst, and then, in the presence of a catalyst for a hydrosilylation reaction, an oligomer or polymer (e.g., polyalkylene ether, polyester, polycarbonate, etc.) in which the terminal ends are modified to allyl groups is added to the α,ω-dihydrogenorganopentasiloxane to obtain the polyorganosiloxane. In addition, according to the method described in Japanese Patent Publication No. 2662310, octamethylcyclotetrasiloxane and tetramethyldisiloxane are reacted in the presence of sulfuric acid (acidic catalyst), and the resulting α,ω-dihydrogenorganopolysiloxane can be obtained by adding an oligomer or polymer with a single end modified to an allyl group in the presence of a catalyst for a hydrosilylation reaction, in the same manner as above. Meanwhile, the α,ω-dihydrogenorganopolysiloxane may be used by appropriately adjusting its average chain length according to the polymerization conditions, or a commercially available α,ω-dihydrogenorganopolysiloxane may be used. Furthermore, the oligomer with a single end modified to an allyl group may be used by appropriately adjusting its average repeating unit number according to the polymerization conditions, or a commercially available oligomer with a single end modified to an allyl group may be used. Among single-terminal allyl group modified oligomers, single-terminal allyl group modified polyethylene glycol can be manufactured by referring to Japanese Patent No. 5652691, etc. In addition, commercially available allyl group modified polyethylene glycol include Uniox PKA-5001, Uniox PKA-5002, Uniox PKA-5003, Uniox PKA-5004, Uniox PKA-5005, etc. manufactured by Nichiyu Corporation.

[0272] The polycarbonate-polyorganosiloxane copolymer (A) can be manufactured by polymerizing a mixture of raw material monomers by interfacial polymerization or melt polymerization (ester exchange method). When manufactured by interfacial polymerization, for example, the method described in Japanese Patent Publication No. 2014-80462, etc., may be adopted. Preferably, the polycarbonate-polyorganosiloxane copolymer (A) can be manufactured by reacting the raw material monomer polyorganosiloxane (a2), the diol monomer (a1), and the carbonate ester compound described later by melt polymerization in the presence of a basic catalyst. As necessary, the diol monomer (a3) ​​may be used as the raw material monomer. Additionally, the polymerization reaction may be carried out by further adding a terminal stopping agent.

[0273] Since the melt polymerization method does not require solvents such as methylene chloride required in the interfacial polymerization method, it is advantageous in terms of the environment and economy. Furthermore, since it does not use the highly toxic phosgene used in the interfacial polymerization method, it is advantageous in terms of manufacturing. Therefore, it is preferable to manufacture the polycarbonate-polyorganosiloxane copolymer (A) by the melt polymerization method.

[0274] (carbonate ester compound)

[0275] Examples of carbonate ester compounds include diaryl carbonate compounds, dialkyl carbonate compounds, and alkylaryl carbonate compounds.

[0276] Examples of diaryl carbonate compounds include compounds represented by the following general formula (41) and compounds represented by the following general formula (42).

[0277]

[0278] Among general formulas (41) and (42), Ar 1 and Ar 2 Each represents an aryl group, and they may be identical or different. In formula (42), Ar 3 and Ar 4Each represents an aryl group, and they may be identical or different from each other, and D 1 ... represents the above-mentioned divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms or the above-mentioned divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms, the above-mentioned divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or the above-mentioned divalent aromatic hydrocarbon group having 6 to 20 carbon atoms.

[0279] Examples of dialkyl carbonate compounds include compounds represented by the following general formula (43) and compounds represented by the following general formula (44).

[0280]

[0281] Among general formulas (43) and (44), R 21 and R 22 Each represents an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 4 to 20 carbon atoms, and may be the same or different from each other. In formula (14), R 23 and R 24 Each represents an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 4 to 20 carbon atoms, and they may be the same or different from each other, and D 2 represents the above-mentioned divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms or the above-mentioned divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms, the above-mentioned divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or the above-mentioned divalent aromatic hydrocarbon group having 6 to 20 carbon atoms.

[0282] Examples of alkylaryl carbonate compounds include compounds represented by the following general formula (45) and compounds represented by the following general formula (46).

[0283]

[0284] Among general formulas (45) and (46), Ar 5 is Arylgi, R 25 represents an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 4 to 20 carbon atoms. In general formula (46), Ar 6 Eun Arilgi, R 26is an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 4 to 20 carbon atoms, D 3 ... represents the above-mentioned divalent straight-chain aliphatic hydrocarbon group having 2 to 40 carbon atoms or the above-mentioned divalent branched aliphatic hydrocarbon group having 3 to 40 carbon atoms, the above-mentioned divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or the above-mentioned divalent aromatic hydrocarbon group having 6 to 20 carbon atoms.

[0285] Examples of diaryl carbonate compounds include diphenyl carbonate, ditolyl carbonate, bis(chlorophenyl) carbonate, dynaphthyl carbonate, bis(diphenyl) carbonate, and bisphenol A bisphenyl carbonate.

[0286] Examples of dialkyl carbonate compounds include diethyl carbonate, dimethyl carbonate, dibutyl carbonate, dicyclohexyl carbonate, and bisphenol A bismethyl carbonate.

[0287] Examples of alkylaryl carbonate compounds include methyl phenyl carbonate, ethyl phenyl carbonate, butyl phenyl carbonate, cyclohexyl phenyl carbonate, and bisphenol A methyl phenyl carbonate.

[0288] A desirable carbonate ester compound is diphenyl carbonate.

[0289] One or more carbonate ester compounds may be used in the manufacture of the polycarbonate-polyorganosiloxane copolymer (A).

[0290] (Terminal arresting agent)

[0291] In the manufacture of the polycarbonate-polyorganosiloxane copolymer (A), a terminal stopper may be used as needed. As for the terminal stopper, a known terminal stopper used in the manufacture of polycarbonate resin may be used, and examples of specific compounds include phenol, p-cresol, p-tert-butylphenol, p-tert-octylphenol, p-cumylphenol, p-nonylphenol, and p-tert-amylphenol. These monovalent phenols may each be used individually or in combination of two or more types.

[0292] (Quarterly system)

[0293] In the preparation of the polycarbonate-polyorganosiloxane copolymer (A), a branching agent may be used. Examples of branching agents include phloroglucin, trimellitic acid, 1,1,1-tris(4-hydroxyphenyl)ethane, 1-[α-methyl-α-(4'-hydroxyphenyl)ethyl]-4-[α',α'-bis(4"-hydroxyphenyl)ethyl]benzene, α,α',α"-tris(4-hydroxyphenyl)-1,3,5-triisopropylbenzene, and isatinbis(o-cresol).

[0294] Specifically, for example, a polycarbonate-polyorganosiloxane copolymer (A) can be manufactured by a melt polymerization method by the following steps.

[0295] A mixture of raw monomers including a diol monomer (a1), a polyorganosiloxane (a2), and a carbonate ester compound is subjected to an ester exchange reaction. The mixture of raw monomers may, if necessary, include a diol monomer (a3). The amount of the carbonate ester compound relative to the total amount of diol monomers (a1) and (a3) ​​is preferably 0.9 to 1.2 times the mole, and more preferably 0.95 to 1.05 times the mole.

[0296] In polymerization conditions, when the diol monomers (a1) and (a3) ​​are more volatile than the carbonate ester compound, it is preferable that the ratio of the amount of the carbonate ester compound to the total amount of the diol monomers (a1) and (a3) ​​is 1 or less.

[0297] In polymerization conditions, when the diol monomers (a1) and (a3) ​​are less likely to volatilize than the carbonate ester compound, it is preferable that the ratio of the amount of the carbonate ester compound to the total amount of the diol monomers (a1) and (a3) ​​is 1 or more.

[0298] By adjusting the ratio of the amount of carbonate ester compound to the total amount of diol monomers (a1) and (a3) ​​to the above range, the number average molecular weight and weight average molecular weight of the polycarbonate-polyorganosiloxane copolymer (A) obtained can be increased.

[0299] In the above-described ester exchange reaction, when a terminal stopper is used, if the amount of the terminal stopper is in the range of 0.05 to 10 mol% relative to the total amount of the diol monomer (a1), polyorganosiloxane (a2), and optionally polyorganosiloxane (a3), it is desirable from the view that a polycarbonate resin with excellent heat resistance and water resistance is obtained because the hydroxyl terminals of the polycarbonate-polyorganosiloxane copolymer (A) obtained are sufficiently encapsulated. The amount of the terminal stopper relative to the total amount of the diol monomer (a1), polyorganosiloxane (a2), and optionally polyorganosiloxane (a3) ​​is more preferably 1 to 6 mol%. The terminal stopper may be added in its entirety to the reaction system in advance, or a portion may be added to the reaction system in advance and the remainder added as the reaction proceeds.

[0300] It is preferable to simultaneously introduce an antioxidant into the reactor along with the diol monomer (a1), polyorganosiloxane (a2), and carbonate ester compound, and to perform an ester exchange reaction in the presence of the antioxidant.

[0301] When performing the ester exchange reaction, the reaction temperature is not particularly limited and, for example, may be in the range of 100 to 260°C, and preferably in the range of 100 to 250°C. In addition, it is preferable to gradually increase the temperature from 150°C to 250°C as the reaction progresses, and it is more preferable to gradually increase the temperature from 170°C to 250°C. If the temperature of the ester exchange reaction is 100°C or higher, the reaction rate becomes sufficiently fast, while if it is 250°C or lower, few side reactions occur, making it difficult for problems such as discoloration of the resulting polycarbonate-polyorganosiloxane copolymer (A) to occur.

[0302] The temperature inside the final reactor is preferably 210°C or higher, more preferably 225°C or higher.

[0303] The reaction pressure is set according to the vapor pressure of the monomer used or the reaction temperature. It is not particularly limited as long as it is set to ensure the reaction proceeds efficiently. For example, at the beginning of the reaction, 1.01 × 10⁻⁶ 5 ~5.07×10 6 Maintain at atmospheric pressure (normal pressure) or pressurized up to Pa, and in the later stages of the reaction, change to a reduced pressure state, finally reaching 1.33–1.33 × 10⁻⁶ 3 It is preferable to use Pa.

[0304] The reaction time should be carried out until the target molecular weight is reached, for example, 0.2 to 10 hours.

[0305] The above ester exchange reaction is carried out, for example, in the absence of an inert solvent, but if necessary, it may be carried out in the presence of 1 to 150 parts by weight of an inert solvent per 100 parts by weight of the polycarbonate resin obtained. As inert solvents, aromatic compounds such as diphenyl ether, halogenated diphenyl ether, benzophenone, polyphenyl ether, dichlorobenzene, and methylnaphthalene; and tricyclo[5.2.1.0 2,6Examples include cycloalkanes such as decane, cyclooctane, and cyclodecane.

[0306] If necessary, it may be carried out under an inert gas atmosphere, and examples of inert gases include gases such as argon, carbon dioxide, dinitrogen monoxide, and nitrogen, chlorofluorohydrocarbons, alkanes such as ethane and propane, and alkenes such as ethylene and propylene.

[0307] In the melt polymerization method, it is preferable to use a basic catalyst as a catalyst. As a basic catalyst, at least one type selected from the group consisting of metal catalysts such as alkali metal compounds and alkaline earth metal compounds, organic catalysts such as nitrogen-containing compounds and quaternary phosphonium salts containing aryl groups, and metal compounds may be used. These compounds may be used alone or in combination.

[0308] As a basic catalyst, at least one selected from the group consisting of inorganic salts, oxides, hydroxides, hydrides, and alkoxides of alkali metals or alkaline earth metals, excluding organic salts and silicates; quaternary ammonium hydroxides; and quaternary phosphonium salts containing aryl groups is preferably used, and alkali metal hydroxides are more preferably used. The basic catalyst may be used alone or in combination of two or more types.

[0309] Examples of alkali metal compounds include sodium hydroxide, potassium hydroxide, cesium hydroxide, lithium hydroxide, sodium bicarbonate, sodium carbonate, potassium carbonate, cesium carbonate, lithium carbonate, sodium acetate, potassium acetate, cesium acetate, lithium acetate, sodium stearate, potassium stearate, cesium stearate, lithium stearate, sodium borohydride, sodium benzoate, potassium benzoate, cesium benzoate, lithium benzoate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, dilithium hydrogen phosphate, disodium phenyl phosphate, disodium, dipotassium, dicesium, and dilithium salts of bisphenol A, sodium, potassium, cesium, and lithium salts of phenol, etc.

[0310] Examples of alkaline earth metal compounds include magnesium hydroxide, calcium hydroxide, strontium hydroxide, barium hydroxide, magnesium carbonate, calcium carbonate, strontium carbonate, barium carbonate, magnesium diacetate, calcium diacetate, strontium diacetate, and barium diacetate.

[0311] Examples of nitrogen-containing compounds include quaternary ammonium hydroxides having alkyl or aryl groups, such as tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetrabutylammonium hydroxide, and trimethylbenzylammonium hydroxide. Additionally, examples include tertiary amines such as triethylamine, dimethylbenzylamine, and triphenylamine, and imidazoles such as 2-methylimidazole, 2-phenylimidazole, and benzimidazole. Furthermore, examples include bases or basic salts such as ammonia, tetramethylammonium borohydride, tetrabutylammonium borohydride, tetrabutylammonium tetraphenylborate, and tetraphenylammonium tetraphenylborate.

[0312] Examples of metal compounds include zinc-aluminum compounds, germanium compounds, organotin compounds, antimony compounds, manganese compounds, titanium compounds, and zirconium compounds.

[0313] Specific examples of quaternary phosphonium salts containing an aryl group include, for example, tetra(aryl or alkyl)phosphonium hydroxides such as tetraphenylphosphonium hydroxide, tetranaphthylphosphonium hydroxide, tetra(chlorophenyl)phosphonium hydroxide, tetra(biphenyl)phosphonium hydroxide, tetratolylphosphonium hydroxide, tetramethylphosphonium hydroxide, tetraethylphosphonium hydroxide, and tetrabutylphosphonium hydroxide; tetramethylphosphonium tetraphenylborate; tetraphenylphosphonium bromide; tetraphenylphosphonium phenolate; tetraphenylphosphonium tetraphenylborate; methyltriphenylphosphonium tetraphenylborate; benzyltriphenylphosphonium tetraphenylborate; biphenyltriphenylphosphonium tetraphenylborate; tetratolylphosphonium tetraphenylborate; and tetraphenylphosphonium phenolate. Examples include tetra(pt-butylphenyl)phosphonium diphenyl phosphate, triphenylbutylphosphonium phenolate, triphenylbutylphosphonium tetraphenylborate, etc.

[0314] Quaternary phosphonium salts containing an aryl group are preferably combined with nitrogen-containing organic basic compounds, for example, a combination of tetramethylammonium hydroxide and tetraphenylphosphonium tetraphenylborate is preferred.

[0315] The amount of basic catalyst used is preferably 1×10 per 1 mole of diol monomer (a1) or a total of 1 mole of diol monomer (a1) and (a3). -9 ~1×10 -2 Moles, preferably 1×10⁻⁶ -8 ~1×10 -4 Moles, more preferably 1×10⁻⁶ -7 ~1×10 -5 You can select from the range of malls.

[0316] A catalyst deactivator may be added in the later stages of the reaction. Known catalyst deactivators are effectively used. Examples of catalyst deactivators include sulfonic acid esters, ammonium salts of sulfonic acid, and phosphonium salts of sulfonic acid.

[0317] When using at least one polymerization catalyst selected from alkali metal compounds and alkaline earth metal compounds, the amount of catalyst deactivator used can be preferably in a ratio of 0.5 to 50 moles per mole of the catalyst, more preferably in a ratio of 1.0 to 30 moles, and even more preferably in a ratio of 5.0 to 15 moles.

[0318] It is preferable to add a catalyst deactivator to terminate the polymerization reaction, and then mix in an antioxidant.

[0319] The reaction in the melt polymerization method may be carried out in either a continuous or batch manner. The reaction apparatus used for melt polymerization may be a vertical reaction apparatus equipped with an anchor-type stirring blade, a Max Blend stirring blade, or a helical ribbon-type stirring blade, or a horizontal reaction apparatus equipped with a paddle blade, a grid blade, or a spectral blade. Additionally, it may be an extruder type equipped with a screw. In the case of a continuous method, it is preferable to use a combination of these reaction apparatuses.

[0320] [Shinproof Agent]

[0321] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and a light-resistant agent, the polycarbonate-based resin composition and the molded article thereof exhibit the effect of having excellent impact resistance and excellent light resistance.

[0322] Specific examples of light-resistant agents include those generally known as ultraviolet absorbers, light stabilizers, and weather-resistant agents.

[0323] When a polycarbonate-based resin composition includes a light-resistant agent, the content of the light-resistant agent is preferably 0.01 parts by mass or more, more preferably 0.03 parts by mass or more, and even more preferably 0.05 parts by mass or more, with respect to further improving light resistance, with respect to 100 parts by mass of the polycarbonate-based resin composition, and preferably 3.0 parts by mass or less, more preferably 2.0 parts by mass or less, and even more preferably 1.0 parts by mass or less, with respect to the balance of impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0324] The polycarbonate-based resin composition according to the present invention may include one selected from ultraviolet absorbers and light stabilizers alone, or a combination of two or more, as a light-resistant agent.

[0325] As the above light stabilizer, an amine-based light stabilizer is preferred, and a hindered amine-based light stabilizer is more preferred.

[0326] (UV absorber)

[0327] As for the ultraviolet absorber, for example, at least one selected from the group consisting of benzotriazole-based ultraviolet absorbers, benzoxazanionic-based ultraviolet absorbers, salicylate-based ultraviolet absorbers, malonic acid ester-based ultraviolet absorbers, oxalyl-aranid-based ultraviolet absorbers, triazine-based ultraviolet absorbers, benzophenone-based ultraviolet absorbers, and cyanoacrylate-based ultraviolet absorbers may be used. These may be used individually or in combination of two or more types. As for the ultraviolet absorber, from the perspective of lightfastness, it is preferable to include at least one selected from the group consisting of benzotriazole-based ultraviolet absorbers and benzoxazanionic-based ultraviolet absorbers, it is more preferable to include at least one selected from the group consisting of benzotriazole-based ultraviolet absorbers and benzoxazanionic-based ultraviolet absorbers, and benzotriazole-based ultraviolet absorbers are more preferable.

[0328] As benzotriazole-based ultraviolet absorbers, for example, 2-(5-methyl-2-hydroxyphenyl)benzotriazole, 2-(2-hydroxy-4-octyloxyphenyl)benzotriazole, 2-[2-hydroxy-3,5-bis(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole, 2-(3,5-di-tert-butyl-2-hydroxyphenyl)benzotriazole, 2-(3-tert-butyl-5-methyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3,5-di-tert-butyl-2-hydroxyphenyl)-5-chlorobenzotriazole, 2-(3,5-di-tert-amyl-2-hydroxyphenyl)benzotriazole, Examples include condensates with 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole, 2-[2-hydroxy-3-(3,4,5,6-tetra-hydrophthalimidemethyl)-5-methylphenyl]benzotriazole, 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-(2H-benzotriazole-2-yl)phenol], and methyl-3-[3-tert-butyl-5-(2H-benzotriazole-2-yl)-4-hydroxyphenyl]propionate-polyethylene glycol (molecular weight about 300).

[0329] Among these, 2-[2-hydroxy-3,5-bis(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole, 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole, or 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-(2H-benzotriazole-2-yl)phenol] is preferred, and 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-(2H-benzotriazole-2-yl)phenol] is more preferred. These may be used alone or as a mixture of two or more.

[0330] Examples of benzoxanionic compounds include compounds represented by the following general formula (101).

[0331]

[0332] [In general formula (101), R 101R represents a residue obtained by removing s hydrogen atoms from a hydrocarbon compound having one or two aromatic rings in the molecule. 102 represents hydrogen, a halogen group, a nitro group, an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, or an alkenoyloxy group having 2 to 8 carbon atoms. s represents an integer from 2 to 3, and t represents an integer from 1 to 4.

[0333] Among the general formula (101), R 101 R is a residue obtained by removing s hydrogen atoms from a hydrocarbon compound having one or two aromatic rings in the molecule, and examples include arylene groups such as phenylene, biphenylene, and naphthylene. 102 In this case, alkyl groups having 1 to 8 carbon atoms may include methyl groups, ethyl groups, propyl groups, butyl groups, etc., alkoxyl groups having 1 to 8 carbon atoms may include methoxy groups, ethoxy groups, propoxy groups, butoxy groups, etc., and alkenoyloxy groups having 2 to 8 carbon atoms may include allyloxy groups, 2-propenyloxy groups, 2-butenyloxy groups, 2-methyl-3-propenyloxy groups, etc.

[0334] Among the compounds represented by the above general formula (101), it is preferable that it be 2,2'-(1,4-phenylene)bis(4H-3,1-benzoxazine-4-one)[p-phenylenebis(1,3-benzoxazine-4-one)]. 2,2'-(1,4-phenylene)bis(4H-3,1-benzoxazine-4-one) is a compound represented by the following formula.

[0335]

[0336] Examples of salicylate-based UV absorbers include phenyl salicylate, p-tert-butylphenyl salicylate, and p-octylphenyl salicylate. Examples of malonic acid ester-based UV absorbers include benzylidene bisdiethyl malonate, 4-methoxyphenyl-methylene-dimethyl ester, and tetraethyl-2,2'-(1,4-phenylene-dimethylidene)-bismalonate. Examples of oxalylaranid-based UV absorbers include oxalylaranid compounds having hydrocarbon groups having 1 to 12 carbon atoms. Additionally, examples of triazine-based UV absorbers include 2,4-diphenyl-6-(2-hydroxy-4-hexyloxyphenyl)-s-triazine.

[0337] (Light stabilizer)

[0338] As a light stabilizer, for example, an amine-based light stabilizer is preferred.

[0339] As an amine-based light stabilizer, it is preferable to have a structure in which nitrogen is part of a cyclic structure, and it is more preferable to have a piperidine structure. The piperidine structure specified herein may be any structure as long as it is a saturated six-membered cyclic amine structure, and includes cases where a part of the piperidine structure is substituted by a substituent. Substituents that may be present in the piperidine structure include alkyl groups having four or fewer carbon atoms, and methyl groups are particularly preferred. Furthermore, as an amine compound, a compound having multiple piperidine structures is preferred, and in the case of having multiple piperidine structures, a compound in which those piperidine structures are connected by an ester structure is preferred. A compound represented by the following formula is particularly preferred.

[0340]

[0341] The total content of the polycarbonate resin (S) and the light-resistant agent in the polycarbonate resin composition according to the present invention is preferably 50 mass% or more, more preferably 60 mass% or more, even more preferably 70 mass% or more, even more preferably 80 mass% or more, even more preferably 90 mass% or more, even more preferably 95 mass% or more, even more preferably 98 mass% or more, and even more preferably 99 mass% or more, when the total of the polycarbonate resin composition is 100 mass%. The upper limit of the total content of the polycarbonate resin (S) and the light-resistant agent is not particularly limited, but is, for example, 100 mass% or less, from the perspective of obtaining a polycarbonate resin composition having desired properties.

[0342] The content of the light-resistant agent in the polycarbonate-based resin composition is preferably 0.01 parts by mass or more, more preferably 0.03 parts by mass or more, and even more preferably 0.05 parts by mass or more, with respect to 100 parts by mass of the polycarbonate-based resin composition, and is preferably 5 parts by mass or less, more preferably 1.0 parts by mass or less, and even more preferably 0.5 parts by mass or less, from the perspective of the balance of impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0343] [Acrylic Resin]

[0344] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and the acrylic resin, the polycarbonate-based resin composition and the molded article thereof exhibit the effect of having excellent impact resistance and excellent scratch resistance.

[0345] When a polycarbonate-based resin composition includes an acrylic resin, the content of the acrylic resin is preferably 1.0 part by mass or more, more preferably 5.0 part by mass or more, and even more preferably 10 part by mass or more, with respect to further improving the balance of impact resistance and scratch resistance with respect to 100 parts by mass of the polycarbonate-based resin composition, and preferably 60 parts by mass or less, more preferably 50 parts by mass or less, and even more preferably 45 parts by mass or less, with respect to the balance of impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0346] The polycarbonate-based resin composition according to the present invention may include, as an acrylic resin, one type selected from (co)polymers of monomers selected from the group consisting of acrylic acid, methacrylic acid, acrylic acid ester, methacrylic acid ester, acrylonitrile, and methacrylonitrile, either alone or in combination of two or more types. Meanwhile, "(co)polymer" means a homopolymer or a copolymer.

[0347] As acrylic acid esters and methacrylic acid esters (hereinafter also referred to as “(meth)acrylic acid esters”), examples include methyl (meth)acrylate, benzyl (meth)acrylate, n-butyl (meth)acrylate, i-butyl (meth)acrylate, t-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, lauryl (meth)acrylate, tridecyl (meth)acrylate, stearyl (meth)acrylate, glycidyl (meth)acrylate, hydroxypropyl (meth)acrylate, 2-methoxyethyl (meth)acrylate, 2-ethoxyethyl (meth)acrylate, cyclohexyl (meth)acrylate, isobornyl (meth)acrylate, norbornyl (meth)acrylate, and dicyclopentenyl. Examples include (meth)acrylic acid, dicyclopentanyl (meth)acrylic acid, dicyclopentenyloxyethyl (meth)acrylic acid, tetrahydrofurfuryl (meth)acrylic acid, acryl (meth)acrylic acid, 2-hydroxyethyl (meth)acrylic acid, pentamethylpiperidyl (meth)acrylic acid, tetramethylpiperidyl (meth)acrylic acid, dimethylaminoethyl (meth)acrylic acid, diethylaminoethyl (meth)acrylic acid, 2-(meth)acrylic succinate, 2-(meth)acrylic oxyethyl maleate, 2-(meth)acrylic phthalate, 2-(meth)acrylic oxyethyl phthalate, 2-(meth)acrylic hexahydrophthalate, etc. Meanwhile, "(meth)acrylic" means "acrylic" and "methacroyl".

[0348] The total content of the polycarbonate resin (S) and the acrylic resin in the polycarbonate resin composition according to the present invention is preferably 50 mass% or more, more preferably 60 mass% or more, even more preferably 70 mass% or more, even more preferably 80 mass% or more, even more preferably 90 mass% or more, even more preferably 95 mass% or more, even more preferably 98 mass% or more, and even more preferably 99 mass% or more, when the total of the polycarbonate resin composition is 100 mass%. The upper limit of the total content of the polycarbonate resin (S) and the acrylic resin is not particularly limited, but is, for example, 100 mass% or less, in order to obtain a polycarbonate resin composition having desired properties.

[0349] [Elastomer]

[0350] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and the elastomer, the polycarbonate-based resin composition and the molded article thereof can be expected to have excellent impact resistance and excellent chemical resistance. Meanwhile, the elastomer does not include the acrylic resin.

[0351] When a polycarbonate-based resin composition includes an elastomer, there is a possibility of improving chemical resistance. The content of the elastomer is preferably 0.1 parts by mass or more, more preferably 1.0 parts by mass or more, and even more preferably 3.0 parts by mass or more, with respect to 100 parts by mass of the polycarbonate-based resin composition, and is preferably 20 parts by mass or less, more preferably 15 parts by mass or less, and even more preferably 10 parts by mass or less, from the perspective of the balance of impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0352] As for the elastomer, any resin other than the above-mentioned acrylic resin may be used without particular limitation, but examples include rubbery graft polymers and rubbery graft polymer latexes. The rubbery graft polymer is preferably a rubbery graft polymer having structural units derived from acrylic acid esters in the rubber portion, and more preferably a rubbery graft polymer having structural units derived from acrylic acid esters and structural units derived from butadiene in the rubber portion.

[0353] The polycarbonate-based resin composition according to the present invention may include one selected from rubbery graft polymers and rubbery graft polymer latex alone or in combination of two or more as an elastomer.

[0354] Examples of structural units derived from acrylic acid esters constituting the gum-like graft polymer include structural units derived from methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, lauryl acrylate, stearyl acrylate, t-butyl acrylate, etc. Structural units derived from acrylic acid esters may include one or more of these structural units.

[0355] Structural units derived from butadiene that constitute the gum graft polymer may include, for example, structural units derived from butadiene, isoprene, etc. Structural units derived from butadiene may include one or more of these structural units.

[0356] A rubbery graft polymer latex is obtained by polymerizing a vinyl monomer in the presence of a rubber latex having structural units derived from acrylic acid ester and structural units derived from butadiene.

[0357] As structural units derived from acrylic acid esters and butadienes of rubber latex, structural units derived from acrylic acid esters and butadienes, which were cited as the rubber part of rubbery graft polymers, can be likewise cited.

[0358] Examples of vinyl monomers include monofunctional monomers represented by, for instance, acrylonitrile and (meth)acrylic acid esters; and polyfunctional monomers such as divinylbenzene, ethylene glycol dimethacrylate, butylene glycol diacrylate, trialyl cyanurate, trialyl isocyanurate, trimethylolpropane triacrylate, and pentaerythritol tetraacrylate. One or more types of vinyl monomers may be used.

[0359] The total content of the polycarbonate resin (S) and elastomer in the polycarbonate resin composition according to the present invention is preferably 50 mass% or more, more preferably 60 mass% or more, even more preferably 70 mass% or more, even more preferably 80 mass% or more, even more preferably 90 mass% or more, even more preferably 95 mass% or more, even more preferably 98 mass% or more, and even more preferably 99 mass% or more, when the total of the polycarbonate resin composition is 100 mass%. The upper limit of the total content of the polycarbonate resin (S) and elastomer is not particularly limited, but is, for example, 100 mass% or less, in order to obtain a polycarbonate resin composition having desired properties.

[0360] 〔coloring agent〕

[0361] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and a coloring agent, the polycarbonate-based resin composition and the molded article thereof exhibit the effect of having excellent impact resistance and excellent design properties.

[0362] When a polycarbonate-based resin composition includes a coloring agent, the content of the coloring agent is preferably 0.01 parts by mass or more, more preferably 0.03 parts by mass or more, and even more preferably 0.05 parts by mass or more, with respect to further improving the aesthetics, with respect to 100 parts by mass of the polycarbonate-based resin composition; and is preferably 3.0 parts by mass or less, more preferably 2.0 parts by mass or less, even more preferably 1.0 parts by mass or less, and particularly preferably 0.5 parts by mass or less, with respect to the balance of impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0363] The polycarbonate-based resin composition according to the present invention may include one selected from inorganic pigments, organic pigments, and organic dyes alone or in combination of two or more as a coloring agent.

[0364] Examples of inorganic pigments include, for instance, carbon black; oxide-based pigments such as titanium oxide, zinc oxide, variegated iron, chromium oxide, iron black, titanium yellow, zinc-iron brown, copper-chromium black, copper-iron black, etc.

[0365] Examples of organic pigments and organic dyes include, for instance, phthalocyanine-based dye pigments; condensed polycyclic dye pigments such as azo-based, thioindigo-based, perinone-based, perylene-based, quinacridone-based, dioxazine-based, isoindolinone-based, and quinophthalone-based; and anthraquinone-based, perinone-based, perylene-based, methine-based, quinoline-based, heterocyclic, and methyl-based dye pigments.

[0366] The total content of the polycarbonate resin (S) and the coloring agent in the polycarbonate resin composition according to the present invention is preferably 50 mass% or more, more preferably 60 mass% or more, even more preferably 70 mass% or more, even more preferably 80 mass% or more, even more preferably 90 mass% or more, even more preferably 95 mass% or more, even more preferably 98 mass% or more, and even more preferably 99 mass% or more, when the total of the polycarbonate resin composition is 100 mass%. The upper limit of the total content of the polycarbonate resin (S) and the coloring agent is not particularly limited, but is, for example, 100 mass% or less, in order to obtain a polycarbonate resin composition having desired properties.

[0367] [Radiance Particles]

[0368] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and luminous particles, the polycarbonate-based resin composition and the molded article thereof exhibit the effect of having excellent impact resistance and excellent design properties.

[0369] When a polycarbonate-based resin composition includes luminous particles, the content of the luminous particles is preferably 0.1 parts by mass or more, more preferably 0.3 parts by mass or more, and even more preferably 0.5 parts by mass or more per 100 parts by mass of the polycarbonate-based resin composition in order to further improve the aesthetics, and is preferably 10.0 parts by mass or less, more preferably 5.0 parts by mass or less, and even more preferably 3.0 parts by mass or less in order to balance the impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0370] The polycarbonate-based resin composition according to the present invention may include one selected from metal particles and light interference pigments alone or in combination of two or more as luminous particles.

[0371] Examples of metal particles include silver flakes, nickel flakes, gold flakes, titanium flakes, and aluminum flakes, and preferably silver flakes and aluminum flakes.

[0372] Optical interference pigments are particles in which metal or metal oxide is coated onto inorganic particles, excluding metal particles.

[0373] Examples of inorganic particles other than metal particles include glass flakes, mica, alumina flakes, silica flakes, and mica flakes, and preferably glass flakes.

[0374] Examples of metals that coat inorganic particles other than metal particles include silver, nickel, gold, titanium, and aluminum, and preferably silver.

[0375] Examples of metal oxides that coat inorganic particles excluding metal particles include silver oxide, titanium oxide, iron oxide, and aluminum oxide, and preferably titanium oxide.

[0376] Inorganic particles excluding metal particles, metals coating inorganic particles excluding metal particles, and metal oxides coating inorganic particles excluding metal particles can each be used individually or in combination of two or more types.

[0377] The average particle size of the luminous particles is preferably 20 μm or more and 100 μm or less. By making the average particle size of the luminous particles 20 μm or more, the aesthetic appeal of the polycarbonate-based resin composition and the molded article thereof can be enhanced, and by making the average particle size of the luminous particles 100 μm or less, the decrease in impact resistance of the polycarbonate-based resin composition and the molded article thereof can be suppressed.

[0378] The average thickness of the luminous particles is preferably 1 μm or more and 10 μm or less. By making the average thickness of the luminous particles 1 μm or more, excessive crushing of the luminous particles can be suppressed during the manufacturing process of the polycarbonate-based resin composition and the molded article thereof, and by making the average thickness of the luminous particles 10 μm or less, a decrease in the moldability of the polycarbonate-based resin composition can be suppressed.

[0379] [Weapon Filler]

[0380] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and an inorganic filler, the polycarbonate-based resin composition and the molded article thereof exhibit the effect of having excellent impact resistance and excellent rigidity.

[0381] When a polycarbonate-based resin composition includes an inorganic filler, it is preferable to include the inorganic filler in an amount of 0.1 parts by mass or more and 100 parts by mass or less per 100 parts by mass of the polycarbonate-based resin composition. If the content of the inorganic filler is 0.1 parts by mass or more, the balance of tensile properties and stiffness can be further improved. If the content of the inorganic filler is 100 parts by mass or less, moldability or impact resistance can be further improved, for example.

[0382] The content of an inorganic filler in the polycarbonate-based resin composition according to the present invention is, in terms of further improving the balance of tensile properties and stiffness, more preferably 0.5 parts by mass or more, more preferably 1.0 parts by mass or more, more preferably 2.0 parts by mass or more, more preferably 3.0 parts by mass or more, more preferably 4.0 parts by mass or more, with respect to further improving the balance of moldability, impact resistance, and scratch resistance, more preferably 50 parts by mass or less, more preferably 20 parts by mass or less, more preferably 15 parts by mass or less, more preferably 12 parts by mass or less.

[0383] As for the inorganic filler, at least one type selected from the group consisting of glass fillers (e.g., glass fibers, glass beads, glass flakes, glass powder, etc.), carbon fibers, dolomite, silica, diatomaceous earth, talc, clay, mica, asbestos, calcium silicate, montmorillonite, bentonite, graphite, etc. may be cited, and from the view of further improving the balance of tensile properties and stiffness, glass fillers, silica, and carbon fibers are preferred, and glass fibers are more preferred.

[0384] The polycarbonate-based resin composition according to the present invention may include an inorganic filler selected from glass filler, silica, and carbon fiber, either alone or in combination of two or more.

[0385] As for the talc, commercially available talc used as an additive for thermoplastic resins may be used at will. The talc is a hydrated magnesium silicate and, in addition to the main components silicate and magnesium oxide, may contain trace amounts of aluminum oxide, calcium oxide, and iron oxide, and may contain these. Furthermore, the average particle size is preferably 0.5 μm or more, more preferably 1 μm or more, preferably 50 μm or less, and more preferably 20 μm or less. The aspect ratio is, for example, in the range of 2 to 20. These average particle sizes and aspect ratios are determined by comprehensively considering other contained components, such as fluidity during molding and impact resistance and rigidity required for the molded product. Additionally, as for the talc, talc that has been surface-treated with fatty acids, etc., or talc ground in the presence of fatty acids, etc., may also be used.

[0386] In the polycarbonate-based resin composition according to the present invention, when glass fibers are incorporated as an inorganic filler, the rigidity of the molded article can be further improved. As for the glass fibers, it is preferable to manufacture them using alkali-containing glass, low-alkali glass, or alkali-free glass as the material, and the shape of the fibers may be any form such as roving, milled fiber, or chopped strand. In addition, the cross-section of the glass fibers may be flat. It is preferable to use glass fibers with a diameter of 3 μm or more and 30 μm or less, and a length of 1 mm or more and 6 mm or less. If the diameter of the glass fibers is 3 μm or more, the rigidity of the polycarbonate-based resin composition can be further increased, and if it is 30 μm or less, the appearance of the molded article becomes good.

[0387] The fiber length of the glass fiber is, for example, 0.01 mm or more and 8 mm or less, preferably 0.1 mm or more and 6 mm or less. In addition, the fiber diameter is, for example, about 0.1 μm or more and 30 μm or less, preferably 0.5 μm or more and 25 μm or less. These glass fibers may be used as a single type or as a mixture of two or more types.

[0388] In order to increase affinity with the resin, glass fibers surface-treated with silane-based coupling agents such as aminosilanes, epoxysilanes, vinylsilanes, and methacrylicsilanes, chromium complexes, or boron compounds may be used, or additionally treated with a water-consolidating agent. As such glass fibers, MA-409C (average fiber diameter 13 μm) and TA-409C (average fiber diameter 23 μm) manufactured by Asahi Fiber Glass Co., Ltd., or T-511 (average fiber diameter 12 to 14 μm) manufactured by Nippon Electric Glass Co., Ltd. may be suitably used.

[0389] When the polycarbonate-based resin composition according to the present invention includes talc as an inorganic filler, the content of the inorganic filler is preferably 0.5 parts by mass or more, more preferably 1.0 parts by mass or more, even more preferably 2.0 parts by mass or more, even more preferably 3.0 parts by mass or more, and even more preferably 4.0 parts by mass or more, with respect to 100 parts by mass of the polycarbonate-based resin composition, with respect to further improving the balance of tensile properties and stiffness, and with respect to improving dimensional stability; and preferably 100 parts by mass or less, more preferably 50 parts by mass or less, even more preferably 20 parts by mass or less, even more preferably 15 parts by mass or less, even more preferably 12 parts by mass or less, even more preferably 10 parts by mass or less, and even more preferably 8.0 parts by mass or less, with respect to further improving the balance of moldability, impact resistance, and scratch resistance.

[0390] When the polycarbonate-based resin composition according to the present invention includes glass fiber as an inorganic filler, the content of the inorganic filler is preferably 0.5 parts by mass or more, more preferably 1.0 parts by mass or more, even more preferably 2.0 parts by mass or more, even more preferably 3.0 parts by mass or more, even more preferably 4.0 parts by mass or more, even more preferably 6.0 parts by mass or more, and even more preferably 8.0 parts by mass or more, with respect to 100 parts by mass or less, more preferably 50 parts by mass or less, even more preferably 20 parts by mass or less, even more preferably 15 parts by mass or less, and even more preferably 12 parts by mass or less, with respect to 100 parts by mass or less, and 100 parts by mass or less, more preferably 50 parts by mass or less, even more preferably 20 parts by mass or less, even more preferably 15 parts by mass or less, and even more preferably 12 parts by mass or less.

[0391] The total content of the polycarbonate-based resin composition and the inorganic filler in the polycarbonate-based resin composition according to the present invention is preferably 50 mass% or more, more preferably 60 mass% or more, even more preferably 70 mass% or more, even more preferably 80 mass% or more, even more preferably 90 mass% or more, even more preferably 95 mass% or more, even more preferably 98 mass% or more, and even more preferably 99 mass% or more, when the total of the polycarbonate-based resin composition is 100 mass%. The upper limit of the total content of the polycarbonate-based resin composition and the inorganic filler is not particularly limited, but is, for example, 100 mass% or less, from the perspective of obtaining a resin composition having desired properties.

[0392] [Flame Retardant]

[0393] When the polycarbonate-based resin composition according to the present invention comprises the polycarbonate-based resin (S) and a flame retardant, the polycarbonate-based resin composition and the molded article thereof exhibit the effect of having excellent impact resistance and excellent flame retardancy.

[0394] As for the flame retardant, for example, at least one selected from the group consisting of phosphorus-based flame retardants, halogen-based flame retardants, and metal salt-based flame retardants may be used, and from the perspective of further improving flame retardancy, at least one selected from the group consisting of phosphorus-based flame retardants and metal salt-based flame retardants is preferred.

[0395] Examples of phosphorus-based flame retardants include red phosphorus or phosphate ester-based flame retardants.

[0396] As for the phosphate ester-based flame retardant, it is preferable that it does not contain halogen, and may be composed of a monomer, oligomer, polymer, or mixture thereof of the phosphate ester, examples include trimethyl phosphate, triethyl phosphate, tributyl phosphate, trioctyl phosphate, tributoxyethyl phosphate, triphenyl phosphate, tricrezyl phosphate, crezyl diphenyl phosphate, octyl diphenyl phosphate, tri(2-ethylhexyl) phosphate, diisopropylphenyl phosphate, trixylenyl phosphate, tris(isopropylphenyl) phosphate, trinaphthyl phosphate, bisphenol A bisphosphate, hydroquinone bisphosphate, resorcinol bisphosphate, resorcinol-diphenyl phosphate, trioxybenzene triphosphate, etc., or their substituents, condensates, etc. Among these, condensed phosphate ester is preferred as a phosphate ester-based flame retardant.

[0397] Examples of commercially available phosphate ester compounds that can be used as phosphate ester-based flame retardants include, for instance, TPP [triphenyl phosphate], TXP [trixyleneyl phosphate], CR733S [resorcinol bis(diphenyl phosphate)], CR741 [bisphenol A bis(diphenyl phosphate)], PX200 [1,3-phenylene-tetrakis(2,6-dimethylphenyl) phosphate], PX201L [1,4-phenylene-tetrakis(2,6-dimethylphenyl) phosphate], and PX202 [4,4'-biphenylene-tetrakis(2,6-dimethylphenyl) phosphate] manufactured by Daihachi Chemical Industry Co., Ltd.

[0398] The above phosphate ester-based flame retardant is obtained by the reaction of phosphorus oxychloride with divalent phenols or monovalent phenols represented by Ar-OH (Ar represents an aryl group).

[0399] These phosphate ester-based flame retardants may be used alone or in combination of two or more types. As for the phosphate ester-based flame retardant, 1,3-phenylene-tetrakis(2,6-dimethylphenyl) phosphate is preferred.

[0400] When the polycarbonate-based resin composition according to the present invention includes a phosphorus-based flame retardant as a flame retardant, the content of the flame retardant is preferably 1.0 mass or more, more preferably 2.0 mass or more, even more preferably 3.0 mass or more, even more preferably 5.0 mass or more, and even more preferably 7.0 mass or more, with respect to 100 mass parts of the polycarbonate-based resin composition, from the perspective of further improving flame retardancy; and preferably 40 mass parts or less, more preferably 30 mass parts or less, even more preferably 20 mass parts or less, even more preferably 15 mass parts or less, and even more preferably 12 mass parts or less, from the perspective of the balance of impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0401] Examples of halogen-based flame retardants include tetrabromobisphenol A (TBA), halogenated polycarbonates and copolymers of halogenated polycarbonates, oligomers thereof (TBA carbonate oligomers), decabromodiphenyl ether, TBA epoxy oligomers, halogenated polystyrene, and halogenated polyolefins. Halogen-based flame retardants may be used as a single type or in combination of two or more types.

[0402] Examples of metal salt-based flame retardants include organic alkali metal salts and organic alkaline earth metal salts. As for the metal salt-based flame retardant, it is preferable to include at least one selected from organic alkali metal salts and organic alkaline earth metal salts, and it is more preferable to include at least one selected from organic alkali metal salts and organic alkaline earth metal salts.

[0403] Examples of organic sulfonates of the above alkali metal or alkaline earth metal (hereinafter, both may be collectively referred to as "alkali (earth) metal") include metal salts of fluorine-substituted alkylsulfonic acids such as metal salts of alkali metal or alkaline earth metal and perfluoroalkanesulfonic acid, and metal salts of alkali metal or alkaline earth metal and aromatic sulfonic acid.

[0404] Examples of alkali metals include lithium, sodium, potassium, rubidium, and cesium. Examples of alkaline earth metals include beryllium, magnesium, calcium, strontium, and barium. More preferably, they are alkali metals.

[0405] Among these alkali metals, potassium and sodium are preferred in terms of flame retardancy and thermal stability, and potassium is more preferred.

[0406] Alkali metal sulfonates composed of potassium salts and other alkali metals may also be used in combination.

[0407] Examples of alkali metal salts of perfluoroalkane sulfonic acids include potassium perfluorobutane sulfonic acid, potassium trifluoromethane sulfonic acid, potassium perfluorohexane sulfonic acid, potassium perfluorooctane sulfonic acid, sodium pentafluoroethane sulfonic acid, sodium perfluorobutane sulfonic acid, sodium perfluorooctane sulfonic acid, lithium trifluoromethane sulfonic acid, lithium perfluorobutane sulfonic acid, lithium perfluoroheptane sulfonic acid, cesium trifluoromethane sulfonic acid, cesium perfluorobutane sulfonic acid, cesium perfluorooctane sulfonic acid, cesium perfluorohexane sulfonic acid, rubidium perfluorobutane sulfonic acid, and rubidium perfluorohexane sulfonic acid, and these may be used in combination of one or more types.

[0408] Here, the number of carbon atoms in the perfluoroalkyl group is preferably 1 to 18, more preferably 1 to 10, and even more preferably 1 to 8.

[0409] Among these, potassium perfluorobutanesulfonate is preferred.

[0410] As aromatic alkali (earth) metal salts of sulfonic acids, for example, disodium diphenylsulfide-4,4'-disulfonic acid, dipotassium diphenylsulfide-4,4'-disulfonic acid, potassium 5-sulfoisophthalate, sodium 5-sulfoisophthalate, polysodium polysulfonic acid poly(polyethylene terephthalate), calcium 1-methoxynaphthalene-4-sulfonate, disodium 4-dodecylphenyl ether disulfonic acid, poly(2,6-dimethylphenylene oxide) polysulfonic acid, poly(1,3-phenylene oxide) polysulfonic acid, poly(1,4-phenylene oxide) polysulfonic acid, poly(2,6-diphenylphenylene oxide) polysulfonic acid, polypotassium poly(2-fluoro-6-butylphenylene oxide) polysulfonic acid, lithium poly(2-fluoro-6-butylphenylene oxide) polysulfonic acid, potassium benzenesulfonic acid, benzenesulfonic acid Sodium, Sodium p-Toluenesulfonate, Strontium benzenesulfonate, Magnesium benzenesulfonate, Dipotassium p-Benzenedisulfonate, Dipotassium naphthalene-2,6-Disulfonate, Calcium biphenyl-3,3'-Disulfonate, Sodium diphenylsulfone-3-sulfonate, Potassium diphenylsulfone-3-sulfonate, Dipotassium diphenylsulfone-3,3'-Disulfonate, Dipotassium diphenylsulfone-3,4'-Disulfonate, Sodium α,α,α-Trifluoroacetophenone-4-sulfonate, Dipotassium benzophenone-3,3'-Disulfonate, Disodium thiophene-2,5-Disulfonate, Dipotassium thiophene-2,5-Disulfonate, Calcium thiophene-2,5-Disulfonate, Benzothiophenesulfonic acid Examples include sodium, potassium diphenylsulfoxide 4-sulfonate, formalin condensate of sodium naphthalenesulfonate, and formalin condensate of sodium anthracenesulfonate, and potassium diphenylsulfone-3-sulfonate is preferred.

[0411] Among these aromatic alkali sulfonic acid (earth) metal salts, sodium and potassium salts are suitable.

[0412] These metal salt-based flame retardants may be used as a single type or in combination of two or more types.

[0413] When the polycarbonate-based resin composition according to the present invention includes a metal salt-based flame retardant as a flame retardant, the content of the flame retardant is preferably 0.01 parts by mass or more, more preferably 0.02 parts by mass or more, even more preferably 0.03 parts by mass or more, and even more preferably 0.04 parts by mass or more, with respect to 100 parts by mass of the polycarbonate-based resin composition, in order to further improve flame retardancy; and preferably 1.0 parts by mass or less, more preferably 0.8 parts by mass or less, even more preferably 0.6 parts by mass or less, and even more preferably 0.4 parts by mass or less, in order to balance the impact resistance and scratch resistance of the polycarbonate-based resin composition and the molded article thereof.

[0414] The total content of the polycarbonate-based resin composition and the flame retardant in the polycarbonate-based resin composition according to the present invention is preferably 50 mass% or more, more preferably 60 mass% or more, even more preferably 70 mass% or more, even more preferably 80 mass% or more, even more preferably 90 mass% or more, even more preferably 95 mass% or more, even more preferably 98 mass% or more, and even more preferably 99 mass% or more, when the total of the polycarbonate-based resin composition is 100 mass%. The upper limit of the total content of the polycarbonate-based resin composition and the flame retardant is not particularly limited, but is, for example, 100 mass% or less, from the perspective of obtaining a resin composition having desired properties.

[0415] When the polycarbonate-based resin composition according to the present invention comprises at least two types selected from the group consisting of a light-resistant agent, a luminous particle, a coloring agent, an inorganic filler, an elastomer, and a flame retardant, the polycarbonate-based resin composition can exhibit each effect derived from each component.

[0416] The content of the polycarbonate resin (S) included in the polycarbonate resin composition according to the present invention varies depending on which of the ultraviolet absorber, flame retardant, polystyrene resin, polyester resin, and inorganic filler included in the polycarbonate resin composition is included, but is preferably 60 mass% or more, more preferably 65 mass% or more, more preferably 70 mass% or more, even more preferably 85 mass% or more, particularly preferably 95 mass% or more, most preferably 99.0 mass% or more, preferably 99.99 mass% or less, more preferably 99.97 mass% or less, and even more preferably 99.96 mass% or less.

[0417] The polycarbonate-based resin composition according to the present invention may include, in addition to the polycarbonate-based resin (S), a light-resistant agent, a luminous particle, a coloring agent, an inorganic filler, an elastomer, a flame retardant, and an acrylic resin, additives such as, for example, a hydrolytic agent, an antioxidant, and a resin other than the above.

[0418] For example, the polycarbonate-based resin composition may include an antioxidant to prevent oxidative degradation during melting and to prevent discoloration caused by oxidative degradation.

[0419] The content of the antioxidant is preferably 0.001 parts by mass or more and 0.5 parts by mass or less, more preferably 0.01 parts by mass or more and 0.3 parts by mass or less, and even more preferably 0.02 parts by mass or more and 0.2 parts by mass or less, with respect to 100 parts by mass of the polycarbonate-based resin composition. If the content of the antioxidant is within the aforementioned range, sufficient antioxidant action is obtained, and mold contamination during molding can also be suppressed.

[0420] Antioxidants

[0421] The polycarbonate-based resin composition according to the present invention may appropriately contain an antioxidant to a extent that does not impair the purpose of the present invention.

[0422] Antioxidants can suppress the decomposition of the resin during the manufacture or molding of the polycarbonate-based resin composition. Known antioxidants may be used, and preferably, at least one selected from phosphorus-based antioxidants and phenolic antioxidants may be used.

[0423] In terms of suppressing oxidative deterioration during high-temperature molding of a molded article comprising a polycarbonate-based resin composition, it is more preferable that the phosphorus-based antioxidant be a phosphorus-based antioxidant having an aryl group, and more preferable that the phosphorus-based antioxidant be a compound represented by the following general formula (102).

[0424]

[0425] Among the general formula (102), R C21 ~R C25 is a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or an aryl group having 6 to 14 carbon atoms, and may be the same or different. However, in terms of its effect as an antioxidant, R C21 ~R C25 There is no case where all of it becomes hydrogen atoms, and R C21 ~R C25 At least two of them are alkyl groups having 1 to 12 carbon atoms or aryl groups having 6 to 14 carbon atoms. Preferably, R C21 ~R C25 It is a compound in which any two of the atoms are alkyl groups having 1 to 12 carbon atoms or aryl groups having 6 to 14 carbon atoms, and the remainder is a hydrogen atom, more preferably, R C21 ~R C25 Among compounds in which any two are alkyl groups having 1 to 12 carbon atoms or aryl groups having 6 to 14 carbon atoms and the remainder are hydrogen atoms, R C21 or R C25 It is a compound in which at least one of the following is an alkyl group having 1 to 12 carbon atoms or an aryl group having 6 to 14 carbon atoms.

[0426] Examples of alkyl groups having 1 to 12 carbon atoms include methyl groups, ethyl groups, n-propyl groups, isopropyl groups, various butyl groups, various pentyl groups, various hexyl groups, various octyl groups, various decyl groups, various dodecyl groups, etc. Among these, from the perspective of imparting long-term moisture and heat resistance and long-term heat resistance, it is preferable to select one or more from the group consisting of methyl groups, ethyl groups, n-propyl groups, isopropyl groups, various butyl groups, various pentyl groups, various hexyl groups, and various octyl groups, and it is more preferable to select one or more from the group consisting of methyl groups, ethyl groups, isopropyl groups, and tert-butyl groups, and tert-butyl groups are more preferable.

[0427] Examples of aryl groups having 6 to 14 carbon atoms include phenyl groups, tolyl groups, and xylyl groups. Among these, R C21 ~R C25 It is more preferable that it be a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, more preferable that it be a hydrogen atom, a methyl group, an ethyl group, an isopropyl group, or a tert-butyl group, and more preferable that it be a hydrogen atom or a tert-butyl group.

[0428] Especially preferably, R C21 and R C23 This is a tert-butyl group, and R C22 , R C24 and R C25 It is tris(2,4-di-tert-butylphenyl) phosphite, in which is a hydrogen atom.

[0429] As phosphorus-based antioxidants, for example, triphenyl phosphite, diphenyl nonyl phosphite, diphenyl (2-ethylhexyl) phosphite, tris(2,4-di-tert-butylphenyl) phosphite, tris(nonylphenyl) phosphite, diphenyl isooctyl phosphite, 2,2'-methylenebis(4,6-di-tert-butylphenyl) octyl phosphite, diphenyl isodecyl phosphite, diphenyl mono(tridecyl) phosphite, phenyl diisodecyl phosphite, phenyl di(tridecyl) phosphite, tris(2-ethylhexyl) phosphite, tris(isodecyl) phosphite, tris(tridecyl) phosphite, dibutyl hydrogen phosphite, trilauryl trithiophosphite, Tetrakis(2,4-di-tert-butylphenyl)-4,4'-biphenylene diphosphonite, 4,4'-isopropylidenediphenol dodecyl phosphite, 4,4'-isopropylidenediphenol tridecyl phosphite, 4,4'-isopropylidenediphenol tetradecyl phosphite, 4,4'-isopropylidenediphenol pentadecyl phosphite, 4,4'-butylidene bis(3-methyl-6-tert-butylphenyl)ditridecyl phosphite, bis(2,6-di-tert-butyl-4-methylphenyl)pentaerythritol diphosphite, bis(nonylphenyl)pentaerythritol diphosphite, disteaaryl-pentaerythritol diphosphite, phenyl bisphenol A pentaerythritol diphosphite, tetraphenyl Dipropylene glycol diphosphite, 1,1,3-tris(2-methyl-4-di-tridecylphosphite-5-tert-butylphenyl)butane, 3,4,5,6-dibenzo-1,2-oxaphospine, triphenylphosphine, diphenylbutylphosphine, diphenyloctadecylphosphine, tris(p-tolyl)phosphine, tris(p-nonylphenyl)phosphine, tris(naphthyl)phosphine, diphenyl(hydroxymethyl)phosphine, diphenyl(acetoxymethyl)phosphine, diphenyl(β-ethylcarboxyethyl)phosphine, tris(p-chlorophenyl)phosphine, tris(p-fluorophenyl)phosphine, benzyldiphenylphosphine, diphenyl(β-cyanoethyl)phosphine, diphenyl(p-hydroxyphenyl)phosphine, diphenyl(1,Examples include 4-dihydroxyphenyl)-2-phosphine, phenylnaphthylbenzylphosphine, bis(2,4-dicumylphenyl)pentaerythritol diphosphite, etc.

[0430] Specifically, commercially available products such as “Irgafos 168” (manufactured by BASF Japan, Inc., trademark), “Irgafos 12” (manufactured by BASF Japan, Inc., trademark), “Irgafos 38” (manufactured by BASF Japan, Inc., trademark), “ADKSTAB 329K” (manufactured by ADEKA Inc., trademark), “ADKSTAB PEP-36” (manufactured by ADEKA Inc., trademark), “ADKSTAB PEP-8” (manufactured by ADEKA Inc., trademark), “Sandstab P-EPQ” (manufactured by Clariant, trademark), “Weston 618” (manufactured by GE, trademark), “Weston 619G” (manufactured by GE, trademark), “Weston 624” (manufactured by GE, trademark), and “Doverphos S-9228PC” (manufactured by Dover Chemical) can be cited as phosphorus-based antioxidants.

[0431] The phenolic antioxidant is preferably hindered phenol. Specific examples of phenolic antioxidants include triethylene glycol-bis[3-(3-tert-butyl-5-methyl-4-hydroxyphenyl)propionate], 1,6-hexanediol-bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], pentaerythritol-tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, N,N-hexamethylenebis(3,5-di-tert-butyl-4-hydroxyhydrocinnaamide), Examples include 3,5-di-tert-butyl-4-hydroxy-benzylphosphonate diethyl ester, tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 3,9-bis[1,1-dimethyl-2-[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]ethyl]-2,4,8,10-tetraoxaspyro(5.5)undecaine.

[0432] Specifically, commercially available products such as “Irganox 1010” (manufactured by BASF Japan, Inc., trademark), “Irganox 1076” (manufactured by BASF Japan, Inc., trademark), “Irganox 1330” (manufactured by BASF Japan, Inc., trademark), “Irganox 3114” (manufactured by BASF Japan, Inc., trademark), “Irganox 3125” (manufactured by BASF Japan, Inc., trademark), “BHT” (manufactured by Takeda Pharmaceutical Co., Ltd., trademark), “Cyanox 1790” (manufactured by Cyanamide Co., Ltd., trademark), and “Sumilizer GA-80” (manufactured by Sumitomo Chemical Co., Ltd., trademark) can be cited as phenolic antioxidants.

[0433] An antioxidant may be used alone or in combination of two or more types. The content of the antioxidant in the polycarbonate-based resin composition according to the present invention is, with respect to 100 parts by mass of the polycarbonate-based resin composition, preferably 0.001 parts by mass or more, more preferably 0.01 parts by mass or more, even more preferably 0.04 parts by mass or more, and even more preferably 0.08 parts by mass or more; preferably 1.0 parts by mass or less, more preferably 0.50 parts by mass or less, even more preferably 0.25 parts by mass or less, and even more preferably 0.15 parts by mass or less. When multiple types of antioxidants are used, the total amount falls within the above range.

[0434] In order to achieve excellent scratch resistance and impact resistance, the polycarbonate-based resin composition of the present invention, as one embodiment, comprises a polycarbonate-based resin (S) comprising a polycarbonate-polyorganosiloxane copolymer (A), and at least one selected from the group consisting of a light-reducing agent, an elastomer, a coloring agent, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin, wherein the polycarbonate-polyorganosiloxane copolymer (A) may be the polycarbonate-polyorganosiloxane copolymer (S-1), (S-2), (S-3), (S-4), (S-5) or (S-6).

[0435] The polycarbonate-based resin composition of the present invention, as a preferred embodiment in terms of achieving excellent scratch resistance and impact resistance, comprises a polycarbonate-based resin (S) comprising a polycarbonate-polyorganosiloxane copolymer (A), and at least one selected from the group consisting of a light-reducing agent, an elastomer, a coloring agent, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin, wherein the polycarbonate-polyorganosiloxane copolymer (A) may be the polycarbonate-polyorganosiloxane copolymer (S-1) or (S-2).

[0436] The polycarbonate-based resin composition of the present invention, as a more preferred embodiment in terms of achieving excellent scratch resistance and impact resistance, comprises a polycarbonate-based resin (S) comprising a polycarbonate-polyorganosiloxane copolymer (A), and at least one selected from the group consisting of a light-reducing agent, an elastomer, a coloring agent, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin, wherein the polycarbonate-polyorganosiloxane copolymer (A) may be the polycarbonate-polyorganosiloxane copolymer (S-2).

[0437] The method for manufacturing a polycarbonate-based resin composition according to the present invention is not particularly limited as long as it comprises a process of mixing the polycarbonate-based resin (S) with at least one selected from the group consisting of a light-resistant agent, an elastomer, a coloring agent, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin. For example, the polycarbonate-based resin (S) and at least one selected from the group consisting of a light-resistant agent, an elastomer, a coloring agent, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin can be mixed using a mixer or the like, and then melt-kneaded. Melt-kneading can be performed by a method commonly used, for example, by using a ribbon blender, a Henschel mixer, a Banbury mixer, a drum tumbler, a single-screw extruder, a twin-screw extruder, a conid, a multi-screw extruder, etc. The heating temperature during melt mixing is appropriately selected in the range of, for example, 150°C to 300°C, preferably 220°C to 300°C.

[0438] The Charpy impact strength of a sheet-shaped molded article with a length of 80 mm, a width of 10 mm, and a thickness of 4 mm, obtained by molding a polycarbonate-based resin composition according to the present invention, to which a notch (r = 0.25 mm ± 0.05 mm) is provided as a post-processing step, is preferably 5 kJ / m² from the perspective of improving the impact resistance of the resulting molded article.2 Ideally, 10 kJ / m² 2 Ideally, more preferably 15 kJ / m² 2 That is all. From the perspective of further improving the impact resistance of the molded article of the obtained polycarbonate-based resin composition, a higher Charpy impact strength is desirable; therefore, although the upper limit is not specifically limited, from the perspective of improving tensile properties, it is preferably 110 kJ / m² 2 Below, more preferably 95kJ / m² 2 Below, more preferably 85kJ / m² 2 It is as follows.

[0439] The Charpy impact strength of a molded article of a polycarbonate-based resin composition can be increased as the proportion of polyorganosiloxane blocks is increased, and if the proportion of polyorganosiloxane units (A-2) is high, the Charpy impact strength of the molded article of the polycarbonate-based resin composition according to the present invention increases.

[0440] Charpy impact strength can be measured in accordance with ISO-179-1:2010, and specifically, by the method described in the examples below.

[0441] As for the molding conditions of the above-mentioned molded article, the cylinder temperature is 200 to 270°C and the mold temperature is 80 to 120°C, while the cylinder temperature and the mold can be appropriately set according to the glass transition temperature of the polycarbonate-based resin composition used. Specifically, a molded article can be obtained by the method described in the examples described below.

[0442] The load bending temperature of a molded article of a polycarbonate-based resin composition according to the present invention is preferably 112°C or higher, more preferably 115°C or higher, from the perspective of improving the heat resistance of the obtained molded article. Since a higher load bending temperature is desirable from the perspective of further improving the heat resistance of the obtained molded article, the upper limit is not particularly limited, but from the perspective of improving moldability, it is preferably 150°C or lower, more preferably 140°C or lower, and even more preferably 135°C or lower.

[0443] The load bending temperature of a molded article of a polycarbonate-based resin composition can be increased as the proportion of a structure having a rigid skeleton increases, and if the proportion of a structural unit (A-1) represented by general formula (1) is high, the load bending temperature of the molded article of the polycarbonate-based resin composition according to the present invention increases.

[0444] The load bending temperature can be measured in accordance with method A of ISO 527-1,2 (2020), and specifically, can be measured by the method described in the example below.

[0445] The scratch hardness (pencil method) of a molded article of a polycarbonate-based resin composition according to the present invention is HB or higher, preferably F or higher, in order to improve the scratch resistance of the resulting molded article. Since it is desirable for the scratch hardness to be as hard as possible in order to further improve the scratch resistance of the resulting molded article, the upper limit is not particularly limited.

[0446] The scratching hardness of a molded article of a polycarbonate-based resin composition can be increased as the proportion of a structure having a rigid skeleton increases, and if the proportion of a structural unit (A-1) represented by general formula (1) is high, the scratching hardness of the molded article of the polycarbonate-based resin composition of the present invention increases.

[0447] The above scratch hardness can be measured in accordance with JIS K 5600-5-4:1999, and specifically, can be measured by the method described in the examples below.

[0448] The tensile modulus, measured in accordance with ISO 527-1,2:2012 using JIS K7139 dumbbell-type tensile test specimen type A1 obtained by molding the polycarbonate-based resin composition according to the present invention, is preferably 2400 MPa or more, more preferably 2500 MPa or more, even more preferably 2600 MPa or more, and even more preferably 2700 MPa or more, from the perspective of improving the mechanical strength of the obtained molded article. From the perspective of further improving the impact resistance of the obtained molded article, it is preferably 10000 MPa or less, more preferably 5000 MPa or less, and even more preferably 3500 MPa or less.

[0449] The tensile elasticity of a molded article of a polycarbonate-based resin composition can be increased as the proportion of a structure having a rigid skeleton increases, and if the proportion of a structural unit (A-1) represented by the general formula (1) in the polycarbonate-based resin (S) is high, the tensile elasticity of the molded article of the polycarbonate-based resin composition according to the present invention increases.

[0450] The tensile modulus can be the value measured under conditions of a tensile speed of 1 mm / min and a measurement temperature of 23℃.

[0451] As for the molding conditions of the above-mentioned molded piece, the cylinder temperature is 200 to 270°C and the mold temperature is 80 to 120°C, while the cylinder temperature and the mold temperature can be appropriately set according to the glass transition temperature of the polycarbonate-based resin composition used.

[0452] The tensile strength (yield) measured in accordance with ISO 527-1,2:2012 using JIS K7139 dumbbell-type tensile test specimen type A1, obtained by molding the polycarbonate-based resin composition according to the present invention, is preferably 45 MPa or more, more preferably 50 MPa or more, and even more preferably 55 MPa or more, from the perspective of improving the mechanical strength of the obtained molded article. From the perspective of further improving the impact resistance of the obtained molded article, it is preferably 200 MPa or less, more preferably 150 MPa or less, even more preferably 100 MPa or less, and even more preferably 80 MPa or less.

[0453] The tensile strength (yield) can be the value measured under conditions of a tensile speed of 50 mm / min and a measurement temperature of 23℃.

[0454] The molding conditions of the above-mentioned molded piece are a cylinder temperature of 200 to 270°C, a mold temperature of 80°C, and a cycle time of 60 seconds. Meanwhile, the cylinder temperature can be appropriately set according to the glass transition temperature of the polycarbonate-based resin composition used.

[0455] The glass transition temperature of the polycarbonate-based resin composition according to the present invention is preferably 115°C or higher, more preferably 120°C or higher, even more preferably 130°C or higher, and even more preferably 140°C or higher, from the viewpoint of further improving the heat resistance of the molded article obtained. Since a higher glass transition temperature is desirable, the upper limit is not particularly limited, but from the viewpoint of improving processability, it is preferably 200°C or lower, more preferably 180°C or lower, and even more preferably 170°C or lower.

[0456] The glass transition temperature of a polycarbonate-based resin composition can be increased as the proportion of a structure having a rigid framework increases, and if the proportion of a structural unit (A-1) represented by the general formula (1) in the polycarbonate-based resin (S) is high, the glass transition temperature of the polycarbonate-based resin composition according to the present invention increases.

[0457] 2. Molded product

[0458] The molded article according to the present invention comprises the polycarbonate-based resin composition. The molded article can be manufactured by injection molding, injection compression molding, extrusion molding, blow molding, press molding, vacuum molding, foam molding, etc., using a molten compound of the polycarbonate-based resin composition or pellets obtained through molten compounding as a raw material. In particular, it is preferable to manufacture the molded article by injection molding or injection compression molding using the obtained pellets.

[0459] The thickness of the molded product can be arbitrarily set according to the application, and especially when transparency of the molded product is required, 0.2 to 4.0 mm is preferred, 0.3 to 3.0 mm is more preferred, and 0.3 to 2.0 mm is more preferred. If the thickness of the molded product is 0.2 mm or more, there is no bending, and good mechanical strength is obtained.

[0460] On the molded product, a hard coating, anti-fog coating, anti-static coating, or anti-reflective coating may be formed as needed, or a composite coating of two or more types may be formed.

[0461] Among these, it is desirable to have a hard coating film formed, as it provides good light resistance and can prevent wear on the surface of the molded product over time. The material of the hard coating film is not particularly limited, and known materials such as acrylate-based hard coating agents, silicone-based hard coating agents, and inorganic-based hard coating agents may be used.

[0462] The polycarbonate-based resin composition according to the present invention has an excellent balance of impact resistance and scratch resistance in the molded article, making it suitable for use in impact-resistant applications.

[0463] Examples of impact-resistant applications include structures whose outer surface is formed of the above-mentioned polycarbonate-based resin composition, and more specifically, resin windows, touch panels, interior products, exterior products, interior or exterior parts of vehicles, bulbs, electronic product parts, building materials, OA equipment parts, etc. The polycarbonate-based resin composition according to the present invention can be suitably used to manufacture the above-mentioned articles.

[0464] A molded article made of a polycarbonate-based resin composition according to the present invention can be suitably used for, for example, 1) automotive parts such as sunroofs, door visors, rear windows, and side windows; 2) architectural parts such as architectural glass, soundproof walls, carports, sunrooms, and gratings; 3) windows for railway vehicles and ships; 4) electrical equipment parts such as various parts for televisions, radio cassettes, video cameras, video tape recorders, audio players, DVD players, telephones, displays, computers, registers, photocopiers, printers, fax machines, etc., as well as parts for exterior panels and housings; 5) precision equipment parts such as cases and covers for precision machines such as mobile phones, PDAs, cameras, slide projectors, watches, calculators, measuring instruments, and display devices; 6) agricultural parts such as vinyl greenhouses and greenhouses; and 7) furniture parts such as lighting covers, blinds, and interior fixtures.

[0465] Examples

[0466] The present invention will be explained in more detail below by way of examples, but the present invention is not limited to these examples. In the present examples, the polycarbonate-polyorganosiloxane copolymer may be abbreviated as PC-POS copolymer and the polydimethylsiloxane as PDMS.

[0467] 1. Evaluation of polycarbonate-polyorganosiloxane copolymer (A)

[0468] The following evaluation was performed on a pellet containing the PC-POS copolymer (A) prepared in the following manufacturing example.

[0469] (1) 1 H-NMR measurement

[0470] Under the following measurement conditions 1 Based on the integral value of the peak originating from the following specific structure obtained by H-NMR measurement, the content of the structural unit represented by general formula (XX), structural unit (A-1), structural unit (A-31), and structural unit (A-32), the mole fraction of the structural unit (A-1), structural unit (A-31), and structural unit (A-32) relative to the total amount of the structural unit represented by general formula (X) contained in the PC-POS copolymer, -OR T The content of the terminal structure indicated by, the average value of a in the PC-POS copolymer (A), and the average value b2 when b and b1 in the PC-POS copolymer (A) are combined were calculated.

[0471] (Measurement conditions)

[0472] NMR device: ECA-500 manufactured by JEOL RESONANCE Co., Ltd.

[0473] Probe: Corresponds to TH5 5φ NMR sample tube

[0474] Observation range: -5~15ppm

[0475] Observation center: 5ppm

[0476] Pulse repetition time: 9 seconds

[0477] Flip angle: 45°

[0478] Accumulated count: 256

[0479] NMR sample tube: 5φ

[0480] Sample amount: 30~40mg

[0481] Sample pretreatment: Drying at 100°C for 6 hours (if containing structural unit A-32)

[0482] Solvent: Dichloroform

[0483] Measured temperature: Room temperature

[0484] Correction of chemical shift: The proton-derived peak of chloroform in dichloroform was set to a reference of 7.26 ppm.

[0485] A: Peak integral value in the range of δ 7.30–7.43

[0486] (Meanwhile, a peak derived from chloroform protons in dichloroform also appears in this range, but since the sample concentration is sufficient, it does not affect the attribution of the structure.)

[0487] B: Peak integral value in the range of δ -0.20 to 0.30

[0488] C: Peak integral value in the range of δ 3.30–3.75

[0489] D: Peak integral value in the range of δ 4.75~5.30

[0490] E: Peak integral value in the range of δ 0.75–1.98

[0491] F: Peak integral value in the range of δ 1.98–2.70

[0492] G: Peak integral value in the range of δ 0.40–0.55

[0493] H: Peak integral value in the range of δ 1.30~1.50

[0494] aa=A / 2

[0495] bb=B / 6

[0496] cc=C / 4

[0497] dd=D / 3

[0498] ee=(EF / 6×8-G) / 10

[0499] kk=G / 2

[0500] ll=H / 4

[0501] · Pellet containing PC-POS copolymer (A) prepared in Preparation Examples 1-1 to 1-4 and 2-1 to 2-2

[0502] T 1 =aa 1 +bb 1 +cc 1 +dd 1 +ee 1

[0503] TX 1 =dd 1 +ee 1

[0504] f 1 =aa 1 / T 1 ×100

[0505] g 1 =bb 1 / T 1 ×100

[0506] h 1 =cc 1 / T 1 ×100

[0507] i 1 =dd 1 / T 1 ×100

[0508] j 1 =ee 1 / T 1 ×100

[0509] TW 1 =f 1 ×93+g 1 ×74.1+h 1 ×44+i 1 ×172+j 1 ×170

[0510] Content of structural unit (A-1) (mass%): i 1 ×172 / TW 1 ×100

[0511] Content of structural unit (A-32) (mass%): j 1 ×170 / TW 1 ×100

[0512] -OR T Content of terminal structure indicated by (mass%): f1 ×93 / TW 1 ×100

[0513] Content of polycarbonate block (mass%): (i 1 ×172+j 1 ×170) / TW 1 ×100

[0514] Content (mass%) of structural units represented by the general formula (XX): g 1 ×74.1 / TW 1 ×100

[0515] Content of polyorganosiloxane blocks (mass%): (g 1 ×74.1+h 1 ×44) / TW 1 ×100

[0516] Mole fraction of structural unit (A-1) relative to the total amount of structural units represented by general formula (X) included in the PC-POS copolymer: dd 1 / TX 1 ×100

[0517] Mole fraction of structural unit (A-32) relative to the total amount of structural units represented by general formula (X) included in the PC-POS copolymer: ee 1 / TX 1 ×100

[0518] Average value of a in PC-POS copolymer (A): bb 1 / (kk 1 / 2)

[0519] Average value b2 in PC-POS copolymer (A): cc 1 / kk 1

[0520] · Pellet containing the PC-POS copolymer (A) prepared in Preparation Examples 3-1 to 3-3

[0521] T 3 =aa 3 +bb 3 +cc 3 +dd 3 +ll 3

[0522] TX 3=dd 3 +ll 3

[0523] f 3 =aa 3 / T 3 ×100

[0524] g 3 =bb 3 / T 3 ×100

[0525] h 3 =cc 3 / T 3 ×100

[0526] i 3 =dd 3 / T 3 ×100

[0527] j 3 =ll 3 / T 3 ×100

[0528] TW 3 =f 3 ×93+g 3 ×74.1+h 3 ×44+i 3 ×172+j 3 ×144

[0529] Content of structural unit (A-1) (mass%): i 3 ×172 / TW 3 ×100

[0530] Content of structural unit (A-31) (mass%): j 3 ×144 / TW 3 ×100

[0531] -OR T Content of terminal structure indicated by (mass%): f 3 ×93 / TW 3 ×100

[0532] Content of polycarbonate block (mass%): (i 3 ×172+j 3 ×144) / TW 3 ×100

[0533] Content (mass%) of structural units represented by the general formula (XX): g 3×74.1 / TW 3 ×100

[0534] Content of polyorganosiloxane blocks (mass%): (g 3 ×74.1+h 3 ×44) / TW 3 ×100

[0535] Mole fraction of structural unit (A-1) relative to the total amount of structural units represented by general formula (X) included in the PC-POS copolymer: dd 3 / TX 3 ×100

[0536] Mole fraction of structural unit (A-31) relative to the total amount of structural units represented by general formula (X) included in the PC-POS copolymer: ll 3 / TX 3 ×100

[0537] Average value of a in PC-POS copolymer (A): bb 3 / (kk 3 / 2)

[0538] Average value b2 in PC-POS copolymer (A): cc 3 / kk 3

[0539] 2. Evaluation of Polycarbonate-based Resin Composition

[0540] The following evaluation was performed on the polycarbonate-based resin compositions prepared in the following examples and comparative examples.

[0541] (1) 1 H-NMR measurement

[0542] Under the following measurement conditions 1 Based on the integral values ​​of peaks originating from the following specific structures obtained by H-NMR measurement, the content of structural unit (A-1) and structural unit (A-32) represented by general formula (XX), and the mole fractions of structural unit (A-1) and structural unit (A-32) relative to the total amount of structural unit represented by general formula (X) included in the PC-POS copolymer were calculated.

[0543] (Measurement conditions)

[0544] NMR device: ECA-500 manufactured by JEOL RESONANCE Co., Ltd.

[0545] Probe: Corresponds to TH5 5φ NMR sample tube

[0546] Observation range: -5~15ppm

[0547] Observation center: 5ppm

[0548] Pulse repetition time: 9 seconds

[0549] Flip angle: 45°

[0550] Accumulated count: 256

[0551] NMR sample tube: 5φ

[0552] Sample amount: 30~40mg

[0553] Solvent: Dichloroform

[0554] Measured temperature: Room temperature

[0555] Correction of chemical shift: The proton-derived peak of chloroform in dichloroform was set to a reference of 7.26 ppm.

[0556] A 2 : Peak integral value in the range of δ -0.20~0.30

[0557] B 2 : Peak integral value in the range of δ 4.75~5.30

[0558] C 2 : Peak integral value in the range of δ 0.75~1.98

[0559] D 2 : Peak integral value in the range of δ 0.40~0.55

[0560] E 2 : Peak integral value in the range of δ 2.23~2.28

[0561] aa 2 =A 2 / 6

[0562] bb 2 =(B 2 -E 2 / 2) / 3

[0563] cc 2 =(C 2 -E 2 ×11-D 2 ) / 10

[0564] dd 2 =D 2 / 2

[0565] · Pellet comprising the polycarbonate-based resin composition prepared in Example 1 and Comparative Example 1

[0566] T 2 =aa 2 +bb 2 +cc 2

[0567] TX 2 =bb 2 +cc 2

[0568] f 2 =aa 2 / T 1 ×100

[0569] g 2 =bb 2 / T 1 ×100

[0570] h 2 =cc 2 / T 1 ×100

[0571] TW 2 =f 2 ×74.1+g 2 ×172+h 2 ×170

[0572] Content of structural unit (A-1) (mass%): g 2 ×172 / TW 2 ×100

[0573] Content of structural unit (A-32) (mass%): h 2 ×170 / TW 2 ×100

[0574] Content of polycarbonate block (mass%): (g 2 ×172+h 2 ×170) / TW 2 ×100

[0575] Content (mass%) of structural units represented by the general formula (XX): f 2 ×74.1 / TW 2 ×100

[0576] Mole fraction of structural unit (A-1) relative to the total amount of structural units represented by general formula (X) included in the PC-POS copolymer: bb 2 / TX 2 ×100

[0577] Mole fraction of structural unit (A-32) relative to the total amount of structural units represented by general formula (X) included in the PC-POS copolymer: cc 2 / TX 2 ×100

[0578] (2) Charpy impact strength

[0579] The polycarbonate-based resin compositions prepared in the following Examples 1 and 2 and Comparative Examples 1 and 2 were injection molded into single-piece test specimens with a cylinder temperature of 250°C, a mold temperature of 120°C, a length of 80 mm, a width of 10 mm, and a thickness of 4 mm using an injection molding machine (manufactured by DSM Xplore: 10cc Injection Moulding Machine). Additionally, using test specimens with a notch (r=0.25 mm ± 0.05 mm) applied as a post-processing step, the Charpy impact strength at -20°C, -10°C, and room temperature was measured using a Charpy impact tester (Charpy Impact Tester, Model 611, manufactured by Toyo Seiki Co., Ltd.) in accordance with ISO 179-1:2010. A higher Charpy impact strength indicates better impact resistance.

[0580] (3) Load bending temperature

[0581] A single-piece test specimen with a cylinder temperature of 250°C, a mold temperature of 120°C, a length of 80 mm, a width of 10 mm, and a thickness of 4 mm was produced using an injection molding machine (manufactured by DSM Xplore: 10cc Injection Moulding Machine) with the polycarbonate-based resin composition prepared in the following Examples 1 and 2 and Comparative Examples 1 and 2.

[0582] Using the obtained single test specimen, the load bending temperature (load 1.8 MPa) was measured in accordance with ISO 75-1,2:2020. A higher load bending temperature indicates better heat resistance.

[0583] (4) Scratch hardness

[0584] Scratch hardness was measured at a temperature of 23℃ with a load of 750g in accordance with JIS K 5600-5-4:1999, using the same test specimen as the test specimen used to measure Charpy impact strength obtained from pellets containing the polycarbonate-based resin composition prepared in the following examples and comparative examples.

[0585] (5) Number average molecular weight (Mn) and weight average molecular weight (Mw)

[0586] The number average molecular weight (Mn) and weight average molecular weight (Mw) of pellets containing polycarbonate-polyorganosiloxane copolymers (PC-POS1 and PC-POS2) prepared in the following preparation examples were calculated by gel permeation chromatography (GPC) measurement under the following conditions.

[0587] Test Equipment: Waters Acquity e2695 APC

[0588] Column: TOSOH TSK-GEL SuperAWM-H×2

[0589] Solvent: 10 mM lithium bromide-containing dimethylformamide (DMF)

[0590] Column temperature: 40℃

[0591] Flow rate: 0.6 mL / min

[0592] Detector: RI

[0593] Injection concentration: 0.1w / v%

[0594] Injection volume: 20μL

[0595] For the preparation of the calibration curve, the following standard polystyrene manufactured by Tosho Co., Ltd. was used, and a cubic equation obtained by approximating with the least squares method was used.

[0596] Standard Polystyrene: F-450, F-288, F128, F-80, F-40, F-20, F-10, F-4, F-2, F-1, A-5000, A-2500, A-1000, A-500

[0597] The number average molecular weight (Mn) and weight average molecular weight (Mw) of pellets containing polycarbonate-polyorganosiloxane copolymers (PC-POS1 and PC-POS2) prepared in the following preparation examples were measured as follows. 10 mg was taken from the pellets, and 10 mL of 10 mM lithium bromide-containing dimethylformamide was added to completely dissolve the pellets. The obtained solution was filtered through a membrane filter, and GPC measurements were performed.

[0598] The differential molecular weight distribution curve can be obtained in the following way. First, the time curve of the intensity distribution detected by the RI detector (dissolution curve) is converted into a molecular weight distribution curve for the logarithm of the molecular weight (log(M)) using a calibration curve. Next, an integral molecular weight distribution curve for log(M) is obtained when the total area of ​​the distribution curve is 100%, and then the differential molecular weight distribution curve for log(M) can be obtained by differentiating this integral molecular weight distribution curve with respect to log(M).

[0599] The number average molecular weight (Mn) and weight average molecular weight (Mw) are defined by the following formula based on the number of molecules (Ni) of the molecular weight (Mi) at each elution position of the obtained differential molecular weight distribution curve.

[0600] Mn=Σ(Ni·Mi 2 ) / Σ(Ni·Mi)

[0601] Mw=Σ(Ni·Mi 2 ) / Σ(Ni·Mi)

[0602] Meanwhile, the series of operations to obtain the differential molecular weight distribution curve and the number average molecular weight (Mn) and weight average molecular weight (Mw) can typically be performed using analysis software embedded in the GPC measuring device.

[0603] (6) Viscosity average molecular weight (Mv)

[0604] The viscosity average molecular weight (Mv) was calculated by measuring the viscosity of a methylene chloride solution at 20°C using a Uvelohde type viscometer, determining the limiting viscosity [η] from this, and using the following equation (Schnell equation).

[0605]

[0606] 2. Preparation of Polycarbonate-Polyorganosiloxane (PC-POS) Copolymer

[0607] Preparation Example 1-1: Preparation of PC-POS1-1

[0608] Polycarbonate-polyorganosiloxane PC-POS1-1 was prepared by the following method, and pellets containing the obtained PC-POS1-1 were evaluated by the above method. The results are shown in Table 1.

[0609] In a 10L stainless steel reactor equipped with a stirring device, a trap for capturing effluent phenol, and a pressure reducing device, the diol monomer shown in Table 1, diphenyl carbonate (2,500.0 g / 11.7 mol) having a mole fraction shown in Table 1 when the total amount of the diol monomer is 100, and polyether-modified polyorganosiloxane PDMS-1 (KF-6123, manufactured by Shin-Etsu Chemical Co., Ltd.) represented by the following formula were introduced in an amount shown in Table 1 that is the mass of the obtained PC-POS1-1 (theoretical value) shown in Table 1, and these were completely melted at a reactor temperature of 100°C, and the inside of the reactor was purged with nitrogen.

[0610]

[0611] Polymerization was initiated by adding 0.59 mL of 0.01 N sodium hydroxide, and the temperature inside the reactor was raised to 190°C over a period of about 50 to 100 minutes, and the pressure inside the reactor was reduced to 150 mmHg, and the conditions were maintained until the phenol outflow amounted to 1.6 L.

[0612] Next, the pressure inside the reactor was reduced to 10 mmHg, and the conditions were maintained until 2.0 L of phenol was discharged.

[0613] Next, the temperature inside the reactor was raised to 220°C over a period of about 15 minutes and maintained for about 10 minutes, after which the temperature inside the reactor was raised over a period of about 10 minutes to the final polymerization temperature shown in Table 1, and then the pressure inside the reactor was reduced to 1 mmHg or less, and the reaction was continued until a predetermined stirring torque was reached. After that, nitrogen was introduced to raise the pressure to atmospheric pressure, and Irganox 1010 and Irgafos 168 were each added so that the content in the obtained polymer was 1,000 ppm, and the mixture was stirred for at least 10 minutes. After that, a resin strand was extruded from the bottom of the reactor by introducing high-pressure nitrogen into the reactor. By cutting the obtained strand with a pelletizer, a pellet containing PC-POS1-1, a polycarbonate-polyorganosiloxane copolymer (A), was obtained. The obtained pellets containing PC-POS1-1 were each evaluated by the above method. The results are shown in Table 1.

[0614] Meanwhile, among the above manufacturing conditions 1, "mass of PC-POS1-1 obtained (theoretical value)" is the mass obtained by subtracting the mass of phenol produced from the input diphenyl carbonate (theoretical value) from the sum of the input mass of the total diol monomer, the input mass of diphenyl carbonate, and the input mass of PDMS-1.

[0615] Preparation Examples 1-2 to 3-3: Preparation of PC-POS1-2 to 3-3

[0616] Pellet containing PC-POS1-2 to PC-POS3-3 was obtained in the same manner as in Preparation Example 1-1, except that the diol monomer and its mole fraction, the mass ratio of PDMS-1, and the final polymerization temperature were changed as shown in Tables 1 to 3. The obtained pellets containing PC-POS1-2 to PC-POS3-3 were evaluated in the manner described above. The results are shown in Tables 1 to 3. Meanwhile, "(A-31) to (A-34)" in the table refers to (A-31), (A-32), (A-33), and (A-34).

[0617]

[0618]

[0619]

[0620] Examples 1-1 to 3-7 and Comparative Examples 1-1 to 3-4

[0621] As shown in Tables 4 to 8, PC-POS1-1 to PC-POS3-3 are mixed with a light-reducing agent (ADEKA Corp.’s “ADEKA STAP LA-77Y”, Chemipro Kasei Co., Ltd.’s “KEMISORB79”), a luminous particle (Nippon Glass Co., Ltd.’s “MC5090PS”, Nihonboshi Kogyo’s “ASTROSHINE NJ-80”), a coloring agent (a black-based mixed coloring agent formed by mixing LANXESS’s “Macrolex Violet 3R” 10 mass%, LANXESS’s “Macrolex Green 5B” 50 mass%, LANXESS’s “Macrolex Blue RR” 10 mass%, and Arimoto Chemical Industry’s “Diaresin Red A” 30 mass%) or an elastomer (Kaneka Corp., “KANE ACE M-590”), and a desktop small The molten resin was supplied to a compounder (Micro 15cc Twin Screw Compounder, manufactured by DSM Xplore) and melt-compounded at a barrel temperature of 250°C and a screw rotation speed of 50 rpm. The molten resin was then supplied to a benchtop injection molding machine (Micro 10cc Injection Moulding Machine, manufactured by DSM Xplore), and a molded product obtained at a cylinder temperature of 250°C and a mold temperature of 100°C was used to evaluate the Charpy impact strength, load bending temperature, and scratch hardness using the above method. However, since PC-POS 3-3 has a low glass transition point, in the comparative example using it, the barrel temperature was set to 210°C, the cylinder temperature was set to 210°C, and the mold temperature was set to 70°C.

[0622] The results are shown in Tables 4 to 8.

[0623]

[0624]

[0625]

[0626]

[0627]

[0628] As shown in Tables 4 to 8, it can be seen that the polycarbonate resin composition of the example has an excellent balance of impact resistance and scratch resistance compared to the polycarbonate resin composition of the comparative example, in which any one of the light-resistant agent, luminous particle, colorant, and elastomer included therein is included.

Claims

Claim 1 A polycarbonate resin composition comprising a polycarbonate resin (S) comprising a polycarbonate-polyorganosiloxane copolymer (A), and at least one selected from the group consisting of a light-retardant, an elastomer, a colorant, a luminous particle, an inorganic filler, a flame retardant, and an acrylic resin, wherein the polycarbonate resin (S) comprises a polycarbonate block comprising a structural unit (A-1) represented by the following general formula (1) and a polyorganosiloxane block comprising a repeating structure (A-2) of a structure represented by the following general formula (XX), wherein the content of the structural unit (A-1) represented by the general formula (1) in the polycarbonate resin (S) is 78.0 mass% or more, and the content of the structural unit represented by the following general formula (XX) in the polycarbonate resin (S) is 2.0 mass% or more and 25.0 mass% or less. [Of the general formula(XX), R 1 and R 2 Each represents, independently, a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkylaryl group having 7 to 22 carbon atoms. Claim 2 A polycarbonate resin composition according to claim 1, wherein the polycarbonate resin (S) further comprises at least one structural unit (A-3) selected from the structure represented by the following general formulas (3) and (4). [Of general formulas (3) and (4), R 11 Silver represents a divalent straight-chain or branched aliphatic hydrocarbon group having 2 to 40 carbon atoms, a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms, or a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, and R 12 represents a divalent alicyclic hydrocarbon group having 3 to 40 carbon atoms. Claim 3 A polycarbonate-based resin composition according to paragraph 2, wherein the above structural unit (A-3) has at least one selected from structural units (A-31) to (A-34) represented by the following general formulas (31) to (34). [In general formula (31), n ​​represents an integer from 2 to 18.] Claim 4 In any one of paragraphs 1 to 3, the above R 1 and R 2 A polycarbonate-based resin composition in which α is a methyl group. Claim 5 A polycarbonate resin composition according to any one of claims 1 to 4, wherein the light-resistant agent comprises at least one selected from the group consisting of a benzotriazole-based UV absorber, a benzoxazon-based UV absorber, a salicylate-based UV absorber, a malonic acid ester-based UV absorber, an oxalyl-aranid-based UV absorber, a triazine-based UV absorber, a benzophenone-based UV absorber, a cyanoacrylate-based UV absorber, and an amine-based light stabilizer. Claim 6 A polycarbonate-based resin composition according to any one of claims 1 to 4, wherein the elastomer comprises at least one selected from the group consisting of rubbery graft polymers and rubbery graft polymer latex. Claim 7 A polycarbonate-based resin composition according to any one of claims 1 to 4, wherein the coloring agent comprises at least one selected from the group consisting of inorganic pigments, organic pigments, and organic dyes. Claim 8 A polycarbonate-based resin composition according to any one of claims 1 to 4, wherein the luminous particles comprise at least one selected from the group consisting of particles coated with a metal or metal oxide on at least one selected from the group consisting of metal particles and light interference pigments. Claim 9 A polycarbonate-based resin composition according to any one of claims 1 to 4, wherein the inorganic filler comprises at least one selected from glass filler, silica, and carbon fiber. Claim 10 A polycarbonate-based resin composition according to any one of claims 1 to 4, wherein the flame retardant comprises at least one selected from the group consisting of phosphorus-based flame retardants and metal salt-based flame retardants. Claim 11 A polycarbonate-based resin composition according to any one of claims 1 to 4, wherein the acrylic resin comprises at least one type selected from the group consisting of (co)polymers of monomers selected from the group consisting of acrylic acid, methacrylic acid, acrylic acid ester, methacrylic acid ester, acrylonitrile, and methacrylonitrile. Claim 12 A molded article of a polycarbonate-based resin composition as described in any one of claims 1 to 11.

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