JP2012251084A - Aromatic polycarbonate resin composition and molded article comprising the same - Google Patents

Abstract

[PROBLEMS] An aromatic polycarbonate resin composition that improves mechanical properties by blending a glass reinforcing material and imparts jet blackness by blending a black dye / pigment, and has a deep blackness of piano black tone. Provided is an aromatic polycarbonate resin composition that exhibits a high-quality and good appearance, has a high surface hardness, and is excellent in scratch resistance.
SOLUTION: A mass ratio of an aromatic polycarbonate resin (A) having a mass average molecular weight of 15,000 to 40,000 to 60 to 85% by mass, an aromatic (meth) acrylate unit (b1) and a methyl methacrylate unit (b2). (B1 / b2) is 5 to 50/50 to 95, and mass average molecular weight is 5,000 to 30,000 (meth) acrylate copolymer (B) 15 to 40% by mass of resin component 100 mass An aromatic polycarbonate resin composition containing 1 to 100 parts by mass of an E glass reinforcing material (C) and 0.01 to 10 parts by mass of a black dye / pigment (D) with respect to parts.
[Selection figure] None

Description

  The present invention relates to an aromatic polycarbonate resin composition. More specifically, it is an aromatic polycarbonate resin composition that improves mechanical properties by blending a glass reinforcing material and imparts jet-blackness by blending black dyes and pigments, and is deep and excellent jet-black. The present invention relates to an aromatic polycarbonate resin composition that exhibits design properties and a high-class feeling, and also has good surface hardness, and a molded product formed by molding the aromatic polycarbonate resin composition.

  Aromatic polycarbonate resin is excellent in transparency, impact resistance, heat resistance, etc., and the resulting molded product is also excellent in dimensional stability etc., so housings for electrical and electronic equipment, automotive parts, It is widely used as a raw material resin for the production of precision molded products such as optical disk related parts. In particular, in a case of a home appliance, an electronic device, an image display device, or the like, a product having a high commercial value can be obtained by utilizing its beautiful appearance.

  Conventionally, for the purpose of further improving mechanical properties such as elastic modulus, bending strength, rigidity and impact resistance of aromatic polycarbonate resin, glass reinforced aromatic compounded with glass reinforcing material such as glass fiber in aromatic polycarbonate resin A polycarbonate resin composition has been proposed (for example, Patent Documents 1 and 2).

  In addition, as a method for improving the transparency of the glass-reinforced polycarbonate resin, methods for matching the refractive indexes of the polycarbonate resin and the glass have been studied (for example, Patent Documents 3, 4, 5, and 6). In order to match the refractive index of E glass with the refractive index of polycarbonate resin, a method of using a copolymer polycarbonate resin or using a high refractive index glass close to the refractive index of polycarbonate resin is mentioned. There was a disadvantage that the cost was inferior.

  In recent years, a variety of design and high-class feelings have been demanded especially in the case of home appliances, electronic devices, and image display devices, and jet blackness is imparted by blending a black dye / pigment with an aromatic polycarbonate resin. This has also been proposed (for example, Patent Document 7).

  In addition, the present inventors have a mass average molecular weight of 15,000 to 40 in order to provide an aromatic polycarbonate resin composition having a high surface hardness while maintaining the high heat resistance and transparency inherent in the aromatic polycarbonate resin. , 000 aromatic polycarbonate resin (A), the mass ratio (b1 / b2) of the aromatic (meth) acrylate unit (b1) to the methyl methacrylate unit (b2) is 5 to 80/20 to 95, and the mass average molecular weight A predetermined amount of a phosphorus stabilizer, an aliphatic alcohol, and an aliphatic carboxylic acid with respect to a resin component containing a (meth) acrylate copolymer (B) having a ratio of 5,000 to 30,000 in a predetermined ratio The aromatic polycarbonate resin composition which mix | blended the full esterified substance with an acid was proposed (patent document 8).

Japanese Patent Laid-Open No. 09-12858 JP 2006-257182 A Japanese Patent Laid-Open No. 5-179119 JP-A-9-165506 JP 2000-63653 A JP 2007-153729 A JP 2011-74098 A Japanese Patent Application No. 2010-162559

  Mechanical properties such as elastic modulus, bending strength, and impact resistance can be improved by blending a glass reinforcing material such as glass fiber with the aromatic polycarbonate resin, but the aromatic polycarbonate resin and the glass reinforcing material Due to the large difference in refractive index, there is a problem that the original excellent transparency of the aromatic polycarbonate resin is significantly impaired.

  In addition, according to the study by the present inventors, when a black dye / pigment is further added to the resin composition whose transparency has been lowered by the addition of the glass reinforcing material as described above, the effect of imparting jetness by the black dye / pigment is sufficiently obtained. It was not possible to obtain a black molded product with a deep piano black tone and an excellent luxury.

  In the aromatic polycarbonate resin composition described in Patent Document 8, the surface hardness can be improved without impairing the transparency of the aromatic polycarbonate resin by blending a specific (meth) acrylate copolymer. In this patent document 4, examination about the transparency at the time of mix | blending a glass reinforcing material is not made | formed. Patent Document 8 does not discuss the above problem when a glass reinforcing material and a black dye / pigment are blended.

  The present invention is an aromatic polycarbonate resin composition which improves mechanical properties such as elastic modulus, bending strength, impact resistance and the like by compounding a glass reinforcing material, and imparts jet blackness by blending a black dye / pigment. , An aromatic polycarbonate resin composition that has an excellent jet blackness with a deep piano black tone, a high-quality appearance, a high surface hardness, and excellent scratch resistance, and the aromatic polycarbonate It is an object to provide an aromatic polycarbonate resin molded product obtained by molding a resin composition.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors used an aromatic polycarbonate resin and a (meth) acrylate copolymer described in Patent Document 4 at a specific ratio, and used E as a glass reinforcing material. By using glass, the refractive index of the resin matrix and the glass reinforcing material can be made substantially equal, and therefore, a decrease in transparency due to the compounding of the glass reinforcing material is prevented. By preventing the deterioration of transparency, the effect of imparting jet blackness by blending black dyes and pigments becomes good, and the excellent jet blackness with deep piano black tone is good with a high-class feeling. It has been found that a molded article having an appearance can be obtained, and that the surface hardness can be increased by blending the (meth) acrylate copolymer.

  The present invention has been achieved based on such findings, and the gist thereof is as follows.

[1] 60 to 85% by mass of an aromatic polycarbonate resin (A) having a mass average molecular weight of 15,000 to 40,000, and a mass ratio of the aromatic (meth) acrylate unit (b1) to the methyl methacrylate unit (b2) ( b1 / b2) is 5 to 50/50 to 95, and the mass average molecular weight is 5,000 to 30,000 (meth) acrylate copolymer (B) 15 to 40% by mass of resin component 100 parts by mass On the other hand, an aromatic polycarbonate resin composition containing 1 to 100 parts by mass of E glass reinforcing material (C) and 0.01 to 10 parts by mass of black dye / pigment (D).

[2] The aromatic polycarbonate resin composition according to [1], wherein the E glass reinforcing material (C) is in the form of fibers and / or flakes.

[3] Further, as the component (E), an organosilane compound (E-1) and / or a silicone compound (E-2) represented by the following formula (1) is used with respect to the E glass reinforcing material (C). The aromatic polycarbonate resin composition according to [1] or [2], containing 0.5 to 13% by mass.
(R ¹ O) _p SiR ² _4-p (1)
(In the formula, R ¹ and R ² represent organic groups, and p represents an integer of 1 to 4.)

[4] The aromatic polycarbonate resin composition according to [3], wherein an E glass reinforcing material (C) surface-treated with the component (E) is added to the resin component.

[5] An aromatic polycarbonate resin molded article obtained by molding the aromatic polycarbonate resin composition according to any one of [1] to [4].

[6] The fragrance according to [5], wherein a molding surface in the cavity is molded using a mold made of a material having a thermal conductivity of 0.3 to 6.3 W / m · K. A polycarbonate resin molded product.

According to the aromatic polycarbonate resin composition of the present invention, mechanical properties such as elastic modulus, bending strength, rigidity, and impact resistance can be improved by blending a glass reinforcing material. Moreover, by using an aromatic polycarbonate resin and a specific (meth) acrylate copolymer in a specific ratio as a resin component, and using a glass reinforcement made of E glass, a resin matrix and a glass reinforcement By making the refractive indexes substantially equal to each other, it is possible to prevent a decrease in transparency due to the blending of the glass reinforcing material, and it is possible to increase the surface hardness by blending the (meth) acrylate copolymer. In addition, by preventing the decrease in transparency in this way, the effect of imparting jetness by blending the black dye / pigment is improved, and the jet blackness with deep piano black tone is superior. A molded article having a good appearance can be obtained.
Therefore, according to the present invention, an aromatic polycarbonate resin having excellent mechanical properties such as elastic modulus and impact resistance, excellent jetness, appearance of molded products, high surface hardness, and excellent scratch resistance. Compositions and molded articles can be provided.

  Hereinafter, the present invention will be described in detail with reference to embodiments and examples, but the present invention is not limited to the embodiments and examples described below, and may be arbitrarily selected without departing from the scope of the present invention. You can change it to

[Overview]
The aromatic polycarbonate resin composition of the present invention comprises at least an aromatic polycarbonate resin (A), a specific (meth) acrylate copolymer (B), an E glass reinforcing material (C), and a black dye (D ) In a specific ratio. Moreover, the aromatic polycarbonate resin composition of this invention may contain the other component as needed.

  According to the present invention, mechanical properties such as impact resistance and elastic modulus can be improved by blending E glass reinforcement (C). Further, by blending the aromatic polycarbonate resin (A) and the specific (meth) acrylate copolymer (B) at a specific ratio, the refractive index of the resin matrix and the refractive index of the E glass reinforcing material (C). Therefore, the problem of a decrease in transparency due to the blending of the E glass reinforcing material (C) can be avoided. Moreover, by this improvement in transparency, the effect of imparting jet blackness by the black dye / pigment (D) can be sufficiently obtained, and the appearance becomes deep. In addition, the blending of the (meth) acrylate copolymer (B) can improve the surface hardness of the aromatic polycarbonate resin (A), that is, improve the scratch resistance.

[Aromatic polycarbonate resin (A)]
The aromatic polycarbonate resin (A) used in the present invention (hereinafter sometimes referred to as “component (A)”) reacts an aromatic dihydroxy compound or a small amount thereof with phosgene or a carbonic acid diester. It is the thermoplastic polymer or copolymer which may be branched and is obtained by making it. The production method of the aromatic polycarbonate resin is not particularly limited, and those produced by a conventionally known phosgene method (interfacial polymerization method) or melting method (transesterification method) can be used. Moreover, when the melting method is used, an aromatic polycarbonate resin in which the amount of OH groups in the terminal groups is adjusted can be used.

  As the raw material aromatic dihydroxy compound, 2,2-bis (4-hydroxyphenyl) propane (= bisphenol A), tetramethylbisphenol A, bis (4-hydroxyphenyl) -p-diisopropylbenzene, hydroquinone, resorcinol, 4 , 4-dihydroxydiphenyl and the like, preferably bisphenol A. In addition, a compound in which one or more tetraalkylphosphonium sulfonates are bonded to the above aromatic dihydroxy compound can also be used.

  In order to obtain a branched aromatic polycarbonate resin, a part of the above-mentioned aromatic dihydroxy compound is mixed with the following branching agents, that is, phloroglucin, 4,6-dimethyl-2,4,6-tri (4-hydroxyphenyl). Heptene-2,4,6-dimethyl-2,4,6-tri (4-hydroxyphenyl) heptane, 2,6-dimethyl-2,4,6-tri (4-hydroxyphenylheptene-3,1, Polyhydroxy compounds such as 3,5-tri (4-hydroxyphenyl) benzene and 1,1,1-tri (4-hydroxyphenyl) ethane, and 3,3-bis (4-hydroxyaryl) oxindole (= isa) Tin bisphenol), 5-chloruisatin, 5,7-dichloroisatin, 5-bromoisatin, etc. Dose, the aromatic dihydroxy compound is usually 0.01 to 10 mol%, preferably 0.1 to 2 mol%.

  As aromatic polycarbonate resin (A), among the above-mentioned, polycarbonate resin derived from 2,2-bis (4-hydroxyphenyl) propane, or 2,2-bis (4-hydroxyphenyl) propane and other Polycarbonate copolymers derived from aromatic dihydroxy compounds are preferred. Further, it may be a copolymer mainly composed of a polycarbonate resin, such as a copolymer with a polymer or oligomer having a siloxane structure.

  The aromatic polycarbonate resin mentioned above may be used individually by 1 type, and 2 or more types may be mixed and used for it.

  In order to adjust the molecular weight of the aromatic polycarbonate resin, a monovalent aromatic hydroxy compound may be used. Examples of the monovalent aromatic hydroxy compound include m- and p-methylphenol, m- and p-. And propylphenol, p-tert-butylphenol, p-long chain alkyl-substituted phenol and the like.

  The molecular weight of the aromatic polycarbonate resin (A) used in the present invention is arbitrary depending on the use and may be appropriately selected and determined. From the viewpoint of moldability, strength, etc., the molecular weight of the aromatic polycarbonate resin (A) is a gel. The mass average molecular weight [Mw] in terms of polycarbonate (PC) measured by permeation chromatography is 15,000 to 40,000, preferably 15,000 to 30,000. As described above, when the mass average molecular weight is 15,000 or more, the mechanical strength tends to be further improved, which is more preferable in the case of use in applications requiring high mechanical strength. On the other hand, when the mass average molecular weight is 40,000 or less, a decrease in fluidity tends to be suppressed and improved, which is more preferable from the viewpoint of easy molding processability.

  The weight average molecular weight of the aromatic polycarbonate resin (A) is preferably 17,000 to 30,000, particularly preferably 19,000 to 27,000. Further, two or more types of aromatic polycarbonate resins having different mass average molecular weights may be mixed. In this case, an aromatic polycarbonate resin having a mass average molecular weight outside the above preferred range may be mixed. In this case, the mass average molecular weight of the mixture is preferably within the above range.

[(Meth) acrylate copolymer (B)]
The (meth) acrylate copolymer (B) used in the present invention (hereinafter sometimes referred to as “component (B)”) is composed of an aromatic (meth) acrylate unit (b1) and a methyl methacrylate unit (b2). Containing.
In the present invention, “(meth) acrylate” refers to one or both of “acrylate” and “methacrylate”. Further, the “unit” refers to a structural portion derived from a raw material monomer used when a (meth) acrylate copolymer is produced by copolymerizing monomers.

  The aromatic (meth) acrylate which is a monomer constituting the aromatic (meth) acrylate unit (b1) refers to a (meth) acrylate having an aromatic group in the ester portion. Examples of the aromatic (meth) acrylate include phenyl (meth) acrylate and benzyl (meth) acrylate. These may be used alone or in combination of two or more. Of these, phenyl methacrylate and benzyl methacrylate are preferable, and phenyl methacrylate is more preferable. When the (meth) acrylate copolymer (A) has the aromatic (meth) acrylate unit (b1), the transparency of the resin composition obtained by mixing with the aromatic polycarbonate resin (A) can be improved. it can.

  The monomer constituting the methyl methacrylate unit (b2) is methyl methacrylate. The methyl methacrylate unit (b2) has an effect of well dispersing the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B), and can improve the surface hardness of the molded product.

  The (meth) acrylate copolymer (B) according to the present invention has a mass ratio (b1 / b2) of the aromatic (meth) acrylate unit (b1) to the methyl methacrylate unit (b2) of 5 to 50/50 to 95. That is, an aromatic (meth) acrylate unit (b1) 5 to 50% by mass and a methyl methacrylate unit (b2) 50 to 95% by mass (however, the sum of (b1) and (b2) Is 100% by mass). If the content of the aromatic (meth) acrylate unit (b1) in the (meth) acrylate copolymer (B) is 5% by mass or more and the content of the methyl methacrylate unit (b2) is 95% by mass or less, Transparency is maintained in the high addition region of the (meth) acrylate copolymer (B), the content of the aromatic (meth) acrylate unit (b1) is 50% by mass or less, and the content of the methyl methacrylate unit (b2) is 50. If it is at least mass%, the compatibility with the aromatic polycarbonate resin (A) is not too high, and the migration to the surface of the molded product does not decrease, so the surface hardness does not decrease.

  Moreover, in the high addition area | region of (meth) acrylate copolymer (B), since it expresses high surface hardness, maintaining further transparency, (meth) acrylate copolymer (B) is aromatic ( It is preferable to contain 10-30 mass% of (meth) acrylate units (b1) and 70-90 mass% of methyl methacrylate units (b2) (however, the total of (b1) and (b2) is 100 mass%).

  If the content of the aromatic (meth) acrylate unit (b1) in the (meth) acrylate copolymer (B) is 10% by mass or more and the content of the methyl methacrylate unit (b2) is 90% by mass or less, the fragrance Since the compatibility with the aromatic polycarbonate resin (A) is not too high and the migration to the surface of the molded product is not lowered, the surface hardness is not lowered and the content of the aromatic (meth) acrylate unit (b1) is 30. When the content of the methyl methacrylate unit (b2) is 70% by mass or more at a mass% or less, the transparency is maintained in the high addition region of the (meth) acrylate copolymer (B).

The (meth) acrylate copolymer (B) has a mass average molecular weight of 5,000 to 30,000, preferably 10,000 to 25,000, and particularly preferably 13,000 to 20,000. When the weight average molecular weight of the (meth) acrylate copolymer (B) is 5,000 to 30,000, the compatibility with the aromatic polycarbonate resin (A) is good, and the effect of improving the surface hardness is excellent.
The weight average molecular weight (Mw), number average molecular weight (Mn), and molecular weight distribution (Mw / Mn) of the (meth) acrylate copolymer (B) are gel permeation using chloroform or tetrahydrofuran (THF) as a solvent. Measurements can be made using an association chromatography. The molecular weight is a value in terms of polystyrene (PS).

  As a method for polymerizing the monomer for obtaining the (meth) acrylate copolymer (B) used in the present invention, a known method such as an emulsion polymerization method, a suspension polymerization method, a solution polymerization method, a bulk polymerization method or the like is used. can do. A suspension polymerization method and a bulk polymerization method are preferable, and a suspension polymerization method is more preferable. In addition, additives necessary for polymerization can be appropriately added as necessary, and examples of the additive include a polymerization initiator, an emulsifier, a dispersant, a chain transfer agent and the like.

[Resin component]
The aromatic polycarbonate resin composition of the present invention contains, as a resin component, an aromatic polycarbonate resin (A) 60 to 85% by mass and a (meth) acrylate copolymer (B) 15 to 40% by mass (provided that (The total of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B) is 100% by mass).

  The mass ratio of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B) is more preferably 60 to 85% by mass of the (A) component, and 15 to 40% by mass of the (B) component. Especially preferably, it is 20-35 mass% of (B) component with respect to 65-80 mass% of (A) component.

  When the mass ratio of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B) is within the above range, the (meth) acrylate copolymer (B) with respect to the aromatic polycarbonate resin (A). ), The balance of physical properties can be maintained while maintaining transparency and the surface hardness can be improved, and the refractive index of the resin component can be changed to E glass reinforcing material (C ) And a high transparency can be obtained after blending the E glass reinforcing material (C).

  The aromatic polycarbonate resin composition of the present invention is a resin component other than the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B), as long as the object of the present invention is not impaired. It may contain components. Other transparent resin components that can be blended include, for example, polystyrene resin, high impact polystyrene resin, hydrogenated polystyrene resin, polyacryl styrene resin, ABS resin, AS resin, AES resin, ASA resin, SMA resin, polyalkyl methacrylate. Resin, polymethacryl methacrylate resin, polyphenyl ether resin, polycarbonate resin other than component (A), amorphous polyalkylene terephthalate resin, polyester resin, amorphous polyamide resin, poly-4-methylpentene-1, cyclic polyolefin resin Amorphous polyarylate resin, polyether sulfone, styrene thermoplastic elastomer, olefin thermoplastic elastomer, polyamide thermoplastic elastomer, polyester thermoplastic elastomer, polyurethane Is Kyora thermoplastic elastomers such as thermoplastic elastomers, preferably, polystyrene resin, ABS resin, AS resin, AES resin, ASA resin, a polyphenylene ether resin, polymethacrylic methacrylate resins, and polyester resins.

  These may be used alone or in combination of two or more, but the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B) are used in a specific ratio. In order to obtain the effect of the present invention, particularly in order to form a resin matrix having a refractive index close to the refractive index of the E glass reinforcing material (C), these other transparent resin components are aromatic polycarbonate resins. It is preferable to set it as 20 mass parts or less with respect to a total of 100 mass parts of (A) and a (meth) acrylate copolymer (B).

[E glass reinforcement (C)]
The E glass reinforcing material (C) (hereinafter sometimes referred to as “component (C)”) used in the present invention is a glass reinforcing material made of E glass, and the glass reinforcing material is made of E glass. Of transparency caused by blending the E glass reinforcement (C) with a very small difference in refractive index between the resin matrix comprising the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B) And a resin composition having excellent transparency can be obtained.

In addition, E glass is an alkali free glass having the following component composition, and its refractive index is usually about 1.545 to 1.562.
<E glass composition: mass%>
SiO _2: 52~56
Al ₂ O _3: 12~16
Fe ₂ O ₃ : 0 to 0.4
CaO: 16-25
MgO: 0-6
B ₂ O _3: 5~13
TiO _2: 0~0.5
_{R 2 O (Na 2 O +} K 2 O): 0~0.8

On the other hand, since the refractive index of the aromatic polycarbonate resin (A) is usually about 1.58 and the refractive index of the (meth) acrylate copolymer (B) is usually about 1.51, these are defined in the present invention. The refractive index of the resin matrix mixed within the range varies depending on the mixing ratio of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B), but is usually about 1.54 to 1.57. It can be adjusted to a refractive index substantially equal to the refractive index of E glass.
In order to obtain an aromatic polycarbonate resin composition excellent in transparency, the resin matrix of the aromatic polycarbonate resin composition of the present invention (the resin matrix includes both aromatic polycarbonate resin (A) and (meth) acrylate). The difference between the refractive index of the polymer (B) and other transparent resins described later blended as necessary.) And the refractive index of the E glass reinforcing material (C) is 0.02 or less, particularly 0. .01 or less is preferable.

  There is no restriction | limiting in particular in the shape of E glass reinforcement (C) used by this invention, A granular form (namely, granular glass) and fibrous form (namely, glass fiber, This glass fiber also includes "milled fiber"). ) Or flakes (that is, glass flakes), preferably a resin composition having excellent improvement effects such as elastic modulus, bending strength, impact resistance, etc., and excellent transparency. For this reason, glass fibers (including milled fibers) or glass flakes are used.

  The shape of the granular glass may be either spherical or dice, but is preferably granular glass (glass beads) having a high sphericity (ratio between the maximum diameter and the minimum diameter) close to 1. The average particle size is preferably 1 to 100 μm. When the average particle size of the granular E glass reinforcing material (C) is less than 1 μm, handling properties such as scattering at the time of blending are inferior, making it difficult to uniformly disperse in the composition, while the average particle size is from 100 μm. If a large one is used, the appearance of the resulting molded product is likely to be impaired, and the reinforcing effect tends to be insufficient.

  This granular glass may be surface-treated with a surface treatment agent such as the component (E) described later, and such surface treatment improves the adhesion between the resin component and the granular glass, and is highly transparent. It will be possible to achieve the properties and mechanical strength.

  The glass fiber may be a “glass roving” continuously wound up or a “chopped strand” obtained by cutting the glass fiber into a length of 1 to 10 mm, and a “milled fiber” crushed to a length of about 10 to 500 μm. It may be present, or these may be used in combination.

  Glass fiber chopped strands are glass fibers (strands) obtained by bundling tens to thousands of glass single fibers (filaments) into a predetermined length, and the glass fibers are cut at right angles to the length direction. In this case, the cross-sectional shape is usually a perfect circle or a polygon.

The glass fiber chopped strand has a substantially columnar shape such as a columnar shape or a prismatic shape, and has an average fiber diameter of 1 to 25 μm, particularly 8 to 15 μm, and an average fiber length in the major axis direction. Those of 1 to 10 mm, particularly 2 to 5 mm are preferably used.
When the average fiber diameter is less than 1 μm, the chopped strand has a low bulk density, and the uniform dispersibility of the glass fiber is lowered, and the moldability tends to be impaired. On the other hand, if the average fiber diameter is larger than 25 μm, the appearance of the molded product is impaired and the reinforcing effect tends to be insufficient. Moreover, when the average fiber length is too short, the reinforcing effect is insufficient, and when the average fiber length is too long, workability and molding processability at the time of kneading are impaired.

  The glass fiber chopped strand in the present invention may be surface-treated with a surface treatment agent such as a component (E) described later, and by such surface treatment, the single fiber converges and is lubricated on the surface of the fiber. Property, the fiber surface is prevented from being damaged, the adhesion between the glass fiber and the resin component is improved, and high transparency and mechanical strength are achieved.

The glass fiber milled fiber is obtained by pulverizing the above-described glass fiber (strand) and has a substantially columnar shape such as a columnar shape or a prismatic shape, and the average fiber diameter is 1 to 25 μm, preferably 5 to 15 μm. The average fiber length is 1 to 500 μm, preferably 10 to 300 μm, more preferably 20 to 200 μm.
In a milled fiber of short fibers having an average fiber diameter of less than 1 μm, molding processability is impaired, and when the average fiber diameter is greater than 25 μm, the appearance of the molded product is impaired and the reinforcing effect tends to be insufficient. .

  Also for this milled fiber, by using the surface treated with a surface treating agent such as component (E) described later, the adhesion with the resin component is improved, and the transparency and mechanical properties of the resin composition are further improved. It can be further enhanced.

  Glass flake is usually a glass flake having an average particle diameter of 10 to 4000 μm, an average thickness of several μm, and an aspect ratio (average maximum diameter / average thickness ratio) of about 2 to 200. The glass flakes used in the present invention preferably have an average particle diameter of 2000 μm or less, particularly 500 to 1500 μm, an average thickness of 1 to 10 μm, particularly 2 to 6 μm, and an aspect ratio of 10 to 180, particularly 50 to 150.

  When the glass flakes have an average particle size exceeding 2000 μm, classification occurs when the components of the resin composition are blended, so that uniform dispersion with the resin components becomes difficult, and the molded product tends to have spots. However, if the average particle size is too small, the reinforcing effect is insufficient. On the other hand, if the average thickness is too thin, the strength is insufficient and the powder tends to be crushed during kneading, and if it is too thick, the reinforcing effect becomes insufficient and the molding processability is impaired.

  As for the glass flakes, as in the case of glass fibers, in order to improve the adhesiveness with the resin component, those subjected to a surface treatment with a surface treatment agent such as the component (E) described later may be used.

  In the present invention, the particle size of the granular glass and the particle size of the glass flake are when the distance between the two plates is the largest when the granular glass or glass flake is sandwiched between two parallel plates. The length corresponding to the distance. In addition, the average fiber diameter, average fiber length, average particle diameter, and average thickness of the glass reinforcing material are spread so that the glass reinforcing material does not overlap on the glass as much as possible, and observed with an optical microscope at 40 to 100 times, and photographed. After that, for each of the arbitrarily selected 1000 glass reinforcing materials, the maximum diameter, length, etc. can be measured with calipers, and the average can be obtained by averaging. As these values, catalog values can be adopted for commercial products.

  In this invention, E glass reinforcement (C) may be used individually by 1 type, and 2 or more types may be mixed and used for it. For example, two or more types of granular glass having different average particle diameters and shapes may be used in combination, or two or more types of glass fibers (including milled fibers) having different average fiber diameters and average lengths may be used in combination. Two or more kinds of glass flakes having different average particle diameters, average thicknesses, and aspect ratios may be used in combination, or one or more kinds of granular glass and one or more kinds of glass fibers (milled fiber). 1 type or 2 or more types of granular glass and 1 type or 2 or more types of glass flakes, or 1 type or 2 or more types of granular flakes and 1 type Or two or more types of glass fibers (including milled fibers) are used in combination, or one or more types of granular glass, one or more types of glass fibers (including milled fibers), and one type. Or two It may be or used in combination with glass flakes above.

  In this invention, the compounding quantity of E glass reinforcement (C) is the range of 1-100 mass parts with respect to a total of 100 mass parts of aromatic polycarbonate resin (A) and (meth) acrylate copolymer (B). Thus, it is appropriately adjusted depending on the required performance depending on the use of the aromatic polycarbonate resin composition and the type of E glass reinforcing material (C) to be used. When the blending amount of the E glass reinforcing material (C) is less than the above lower limit, the effect of improving the mechanical properties due to the blending of the E glass reinforcing material (C) cannot be sufficiently obtained, and when the blending amount is larger than the above upper limit. Formability tends to be impaired. The compounding quantity of preferable E glass reinforcement (C) is 2-80 mass parts with respect to a total of 100 mass parts of aromatic polycarbonate resin (A) and (meth) acrylate copolymer (B), More preferably 5 to 50 parts by mass.

[Black dye (D)]
The aromatic polycarbonate resin composition of the present invention contains a black dye (D) in order to impart jetness.

  The black dye / pigment (D) is not particularly limited as long as it can impart jetness to the resin composition. For example, inorganic pigments, organic pigments, organic dyes, and the like can be used. The black dye / pigment (D) may itself exhibit black color, or may exhibit black color by using a combination of two or more dyes / pigments (D).

  Examples of inorganic pigments include, for example, sulfide pigments such as carbon black, cadmium red, and cadmium yellow; silicate pigments such as ultramarine blue; petals, chromium oxide, iron black, titanium yellow, zinc-iron brown, titanium cobalt Oxide pigments such as green, cobalt green, cobalt blue, copper-chromium black and copper-iron black; chromic pigments such as chrome lead and molybdate orange; ferrocyan pigments such as bitumen It is done.

  Examples of organic pigments and organic dyes include phthalocyanine dyes such as copper phthalocyanine blue and copper phthalocyanine green; azo dyes such as nickel azo yellow; thioindigo, perinone, perylene, quinacridone, dioxazine, iso Examples thereof include condensed polycyclic dyes such as indolinone and quinophthalone; anthraquinone, heterocyclic and methyl dyes.

  Among these, carbon black, cyanine-based, quinoline-based, anthraquinone-based, and phthalocyanine-based compounds are preferable from the viewpoint of thermal stability.

In addition, it is preferable to use the dyed pigment by adding two or more kinds in arbitrary combinations and ratios to give the hue a sense of depth and improving jetness.
In addition, dyes and pigments may be used as masterbatches with polystyrene resins, polycarbonate resins, and acrylic resins for the purpose of improving handling during extrusion and improving dispersibility in the resin composition. Good.

  The content of the black dye / pigment (D) in the aromatic polycarbonate resin composition of the present invention may be appropriately selected according to the required jetness depending on the type of the black dye / pigment (D) to be used. It is usually 0.01 parts by mass or more, preferably 0.05 parts by mass or more, and usually 10 parts by mass with respect to 100 parts by mass in total of the polycarbonate resin (A) and the (meth) acrylate copolymer (B). Hereinafter, it is preferably 8 parts by mass or less, more preferably 5 parts by mass or less. When the content of the black dye / pigment (D) is less than the lower limit of the above range, the effect of imparting jetness may not be sufficiently obtained, and the content of the black dye / pigment (D) is the upper limit of the above range. If it exceeds, mold deposits and the like may occur, which may cause mold contamination.

[(E) component]
Even if the aromatic polycarbonate resin composition of this invention contains the organosilane compound (E-1) and / or silicone compound (E-2) which are represented by following formula (1) as (E) component. Good.
(R ¹ O) _p SiR ² _4-p (1)
(In the formula, R ¹ and R ² represent organic groups, and p represents an integer of 1 to 4.)

Examples of the organic group represented by R ¹ and R ² include various aliphatic, aromatic and alicyclic hydrocarbon groups. These hydrocarbon groups may have an ethylenically unsaturated bond, may contain an ether bond or an ester bond inside, and further have a reactive functional group such as an epoxy group or an amino group. You may have.

Preferably, R ¹ is an aliphatic hydrocarbon group having 1 to 4 carbon atoms, R ² is an aromatic or alicyclic hydrocarbon group having 6 to 12 carbon atoms, and an aliphatic hydrocarbon group having 1 to 12 carbon atoms. , A hydrocarbon group having an ethylenically unsaturated bond having 2 to 16 carbon atoms, or a hydrocarbon group having an epoxy group having 3 to 15 carbon atoms. Particularly preferred are those in which R ¹ is an aliphatic hydrocarbon group having 1 to 4 carbon atoms and R ² is an aliphatic hydrocarbon group having 1 to 12 carbon atoms.
This organosilane compound (E-1) preferably has one or more of R ¹ and R ² , and therefore p is preferably 1 to 3.

  Examples of the aromatic or alicyclic hydrocarbon group having 6 to 12 carbon atoms include a phenyl group and a cyclohexyl group. Examples of the aliphatic hydrocarbon group having 1 to 12 carbon atoms include a methyl group, an ethyl group, and a propyl group. , Butyl group, isobutyl group, decyl group and the like. Examples of the hydrocarbon group having an ethylenically unsaturated bond having 2 to 16 carbon atoms include vinyl group, allyl group, isopropenyl group, butenyl group, and methacryloxypropyl. Groups having an ester bond such as an acryloxypropyl group, and hydrocarbon groups having an epoxy group having 3 to 15 carbon atoms include 3,4-epoxycyclohexyl group, glycidoxypropyl group, etc. Is mentioned.

  Specific examples of the organic silane compound (E-1) used in the present invention include trimethylsilane, trimethoxysilane, methyltrimethoxysilane, octyltrimethoxysilane, decyltrimethoxysilane, dimethyldimethoxysilane, methyltriethoxysilane, and trimethyl. Methoxysilane, isobutyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (β-methoxyethoxy) silane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxy Silane, γ-glycidoxypropylmethyldiethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-methacryloxypropylmethyldimethoxysilane, γ-methacryloxypropyltrimethoxysilane Emissions, and the like phenyltrimethoxysilane.

  These organic silane compounds (E-1) may be used individually by 1 type, and may use 2 or more types together.

  The silicone compound (E-2) used in the present invention may be any of polyorganohydrogensiloxanes and organopolysiloxanes. The molecular weight is not particularly limited, and may belong to any group of oligomers and polymers. More specifically, the polyorganohydrogensiloxanes represented by the formulas (A) to (C) described in JP-B-63-26140 and JP-B-63-31513 are described. Hydrocarbon oxysiloxanes represented by the formula: The silicone compound used as the component (E) is preferably selected from polyorganohydrogensiloxanes. For example, it is preferable to use a polysiloxane having the following formula (2) as a repeating unit and a compound represented by the following formula (3) or (4).

(R) _α (H) _β SiO (2)
(In the above formula, R is a linear or branched alkyl group having 1 to 10 carbon atoms, and the sum of α and β is 2.)

(In the above formula, A and B are each a group selected from the following group, and r is an integer of 1 to 500.)

(In said formula, A and B are synonymous with each in said Formula (3), and t is an integer of 1-50.)

  As the silicone compound (E-2), a commercially available silicone oil, for example, SH1107 (Toray Dow Corning Silicone Co., Ltd. product) can be used.

These silicone compounds (E-2) may be used individually by 1 type, and may use 2 or more types together.
Moreover, in this invention, you may use together 1 type (s) or 2 or more types of organosilane compound (E-1), and 1 type (s) or 2 or more types of silicone compound (E-2) as (E) component.

When the aromatic polycarbonate resin composition of the present invention contains the above component (E), the component (E) is in the range of 0.5 to 30% by mass, particularly 1 to 10% by mass with respect to the E glass reinforcing material (C). It is preferable to contain.
The component (E) covers the active sites on the surface of the E glass reinforcing material (C) to prevent deterioration of the resin component, and enhances the adhesion between the E glass reinforcing material (C) and the resin matrix to be transparent. However, if the amount of the component (E) is too small, this effect cannot be obtained sufficiently, and the transparency of the resulting resin composition is reduced. Furthermore, thermal stability, mechanical strength, hue, heat resistance, and heat and humidity resistance also deteriorate. Conversely, if the amount of component (E) is too large, gas is generated during melt-kneading, which tends to cause mold deposits.

  In general, since the silicone compound (E-2) is more effective than the organic silane compound (E-1), when the silicone compound (E-2) is used as the component (E), E It is preferable to set it as 1-6 mass% with respect to a glass reinforcing material (C).

[Other additives]
The aromatic polycarbonate resin composition of the present invention may further contain various additives as long as the effects of the present invention are not impaired. Examples of such additives include phosphorus-based heat stabilizers, mold release agents, antioxidants, ultraviolet absorbers, antistatic agents, flame retardants, and dripping inhibitors.

<Phosphorus heat stabilizer>
Phosphorus heat stabilizers are generally effective in improving the residence stability at high temperatures and the heat resistance stability when using resin molded products when melt-kneading resin components.

  Examples of the phosphorus-based heat stabilizer used in the present invention include phosphorous acid, phosphoric acid, phosphorous acid ester, phosphoric acid ester, etc. Among them, trivalent phosphorus is included, and it is easy to express a discoloration suppressing effect. Phosphites such as phosphites and phosphonites are preferred.

  Examples of the phosphite include triphenyl phosphite, tris (nonylphenyl) phosphite, dilauryl hydrogen phosphite, triethyl phosphite, tridecyl phosphite, tris (2-ethylhexyl) phosphite, tris (tridecyl) phosphite. Phyto, tristearyl phosphite, diphenyl monodecyl phosphite, monophenyl didecyl phosphite, diphenyl mono (tridecyl) phosphite, tetraphenyldipropylene glycol diphosphite, tetraphenyltetra (tridecyl) pentaerythritol tetraphosphite, water Bisphenol A phenol phosphite polymer, diphenyl hydrogen phosphite, 4,4′-butylidene-bis (3-methyl-6-tert-butyl) Ruphenyldi (tridecyl) phosphite) tetra (tridecyl) 4,4'-isopropylidenediphenyldiphosphite, bis (tridecyl) pentaerythritol diphosphite, bis (nonylphenyl) pentaerythritol diphosphite, dilaurylpentaerythritol diphos Phyto, distearyl pentaerythritol diphosphite, tris (4-tert-butylphenyl) phosphite, tris (2,4-di-tert-butylphenyl) phosphite, hydrogenated bisphenol A pentaerythritol phosphite polymer, bis ( 2,4-di-tert-butylphenyl) pentaerythritol diphosphite, bis (2,6-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite, , 2'-methylenebis (4,6-di -tert- butylphenyl) octyl phosphite, bis (2,4-dicumylphenyl) pentaerythritol diphosphite and the like.

  Examples of phosphonites include tetrakis (2,4-di-iso-propylphenyl) -4,4′-biphenylenediphosphonite, tetrakis (2,4-di-n-butylphenyl) -4,4′-biphenyl. Range phosphonite, tetrakis (2,4-di-tert-butylphenyl) -4,4'-biphenylene diphosphonite, tetrakis (2,4-di-tert-butylphenyl) -4,3'-biphenylene diphospho Knight, tetrakis (2,4-di-tert-butylphenyl) -3,3'-biphenylenediphosphonite, tetrakis (2,6-di-iso-propylphenyl) -4,4'-biphenylenediphosphonite, Tetrakis (2,6-di-n-butylphenyl) -4,4′-biphenylenediphosphonite, tetrakis (2,6- -Tert-butylphenyl) -4,4'-biphenylenediphosphonite, tetrakis (2,6-di-tert-butylphenyl) -4,3'-biphenylenediphosphonite, tetrakis (2,6-di-tert) -Butylphenyl) -3,3'-biphenylenediphosphonite and the like.

  Examples of the acid phosphate include methyl acid phosphate, ethyl acid phosphate, propyl acid phosphate, isopropyl acid phosphate, butyl acid phosphate, butoxyethyl acid phosphate, octyl acid phosphate, 2-ethylhexyl acid phosphate, decyl acid phosphate, and lauryl phosphate. Phosphate, stearyl acid phosphate, oleyl acid phosphate, behenyl acid phosphate, phenyl acid phosphate, nonyl phenyl acid phosphate, cyclohexyl acid phosphate, phenoxyethyl acid phosphate, alkoxy polyethylene glycol acid phosphate, bisphenol A acid Sulfate, dimethyl acid phosphate, diethyl acid phosphate, dipropyl acid phosphate, diisopropyl acid phosphate, dibutyl acid phosphate, dioctyl acid phosphate, di-2-ethylhexyl acid phosphate, dioctyl acid phosphate, dilauryl acid phosphate, distearyl acid phenyl Acid phosphate, bisnonylphenyl acid phosphate, etc. are mentioned.

  Among the phosphites, distearyl pentaerythritol diphosphite, tris (2,4-di-tert-butylphenyl) phosphite, bis (2,6-di-tert-butyl-4-methylphenyl) penta Erythritol diphosphite, 2,2′-methylenebis (4,6-di-tert-butylphenyl) octyl phosphite, bis (2,4-dicumylphenyl) pentaerythritol diphosphite are preferable, and heat resistance is good. Tris (2,4-di-tert-butylphenyl) phosphite is particularly preferred in that it is difficult to hydrolyze.

  These phosphorus heat stabilizers may be used alone or in combination of two or more.

  When the aromatic polycarbonate resin composition of the present invention contains a phosphorus-based heat stabilizer, the content thereof is based on 100 parts by mass in total of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B). Usually, 0.001 parts by mass or more, preferably 0.003 parts by mass or more, more preferably 0.005 parts by mass or more, and usually 0.1 parts by mass or less, preferably 0.08 parts by mass or less, more preferably 0.06 parts by mass or less. If the content of the phosphorus-based heat stabilizer is less than the lower limit of the above range, the thermal stability effect may be insufficient, and if the content of the phosphorus-based heat stabilizer exceeds the upper limit of the above range , There is a possibility that the effect will reach its peak and become less economical.

[Release agent]
The aromatic polycarbonate resin composition of the present invention may contain a release agent, and a full esterified product of an aliphatic alcohol and an aliphatic carboxylic acid is preferably used as the release agent.

  Examples of the aliphatic carboxylic acid constituting the fully esterified product include saturated or unsaturated aliphatic monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid. Here, the aliphatic carboxylic acid also includes an alicyclic carboxylic acid. Among these, preferable aliphatic carboxylic acids are mono- or dicarboxylic acids having 6 to 36 carbon atoms, and aliphatic saturated monocarboxylic acids having 6 to 36 carbon atoms are more preferable. Specific examples of such aliphatic carboxylic acids include palmitic acid, stearic acid, valeric acid, caproic acid, capric acid, lauric acid, arachidic acid, behenic acid, lignoceric acid, serotic acid, melicic acid, tetratriacontanoic acid. , Montanic acid, glutaric acid, adipic acid, azelaic acid and the like.

  On the other hand, examples of the aliphatic alcohol component constituting the fully esterified product include saturated or unsaturated monohydric alcohols, saturated or unsaturated polyhydric alcohols, and the like. These alcohols may have a substituent such as a fluorine atom or an aryl group. Among these alcohols, monovalent or polyvalent saturated alcohols having 30 or less carbon atoms are preferable, and aliphatic saturated monohydric alcohols or polyhydric alcohols having 30 or less carbon atoms are more preferable. Here, the aliphatic alcohol also includes an alicyclic alcohol.

  Specific examples of these alcohols include octanol, decanol, dodecanol, stearyl alcohol, behenyl alcohol, ethylene glycol, diethylene glycol, glycerin, pentaerythritol, 2,2-dihydroxyperfluoropropanol, neopentylene glycol, ditrimethylolpropane, dipentaerythritol. Etc.

  In addition, the esterification rate of the full esterified product of the aliphatic alcohol and the aliphatic carboxylic acid is not necessarily 100%, and may be 80% or more. The esterification rate of the full esterified product according to the present invention is preferably 85% or more, particularly preferably 90% or more.

  The full esterified product of an aliphatic alcohol and an aliphatic carboxylic acid used in the present invention is, in particular, one or more of a full esterified product of a monoaliphatic alcohol and a monoaliphatic carboxylic acid, and a polyhydric aliphatic alcohol. It is preferable to contain 1 type, or 2 or more types of the full esterification product of a mono-aliphatic carboxylic acid, a full esterification product of a mono-aliphatic alcohol and a mono-aliphatic carboxylic acid, Combined use with a fully esterified product with an aliphatic carboxylic acid improves the mold release effect, suppresses gas generation during melt kneading, and reduces the mold deposit.

  As a full esterified product of monoaliphatic alcohol and monoaliphatic carboxylic acid, a full esterified product of stearyl alcohol and stearic acid (stearyl stearate), a full esterified product of behenyl alcohol and behenic acid (behenyl behenate) is preferable. As a full esterified product of a polyaliphatic alcohol and a monoaliphatic carboxylic acid, a full esterified product of glycerol serine and stearic acid (glycerol tristearate), a full esterified product of pentaerythritol and stearic acid (pentaerythritol tetra) Stearylate) is preferred, and pentaerythritol tetrastearate is particularly preferred.

  The full esterified product of an aliphatic alcohol and an aliphatic carboxylic acid may contain an aliphatic carboxylic acid and / or alcohol as an impurity, or may be a mixture of a plurality of compounds.

  When the aromatic polycarbonate resin composition of the present invention contains a release agent such as a full esterified product of an aliphatic alcohol and an aliphatic carboxylic acid, the content thereof is the aromatic polycarbonate resin (A) and (meth). It is 2 mass parts or less normally with respect to a total of 100 mass parts of an acrylate copolymer (B), Preferably it is 1 mass part or less. When there is too much content of a mold release agent, there exist problems, such as a fall of hydrolysis resistance and mold contamination at the time of injection molding.

  When a full esterified product of a monoaliphatic alcohol and a monoaliphatic carboxylic acid and a full esterified product of a polyaliphatic alcohol and a monoaliphatic carboxylic acid are used in combination as a mold release agent, the use ratio (mass) Ratio) is a full esterified product of a monoaliphatic alcohol and a monoaliphatic carboxylic acid: a full esterified product of a polyaliphatic alcohol and a monoaliphatic carboxylic acid = 1: 1 to 10 in combination. It is preferable to obtain the above-mentioned effect with certainty.

<Antioxidant>
The aromatic polycarbonate resin composition of the present invention preferably contains an antioxidant as desired. By containing the antioxidant, it is possible to suppress hue deterioration and deterioration of mechanical properties during heat retention.

  Examples of the antioxidant include hindered phenol-based antioxidants. Specific examples thereof include pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], octadecyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl). ) Propionate, thiodiethylenebis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], N, N′-hexane-1,6-diylbis [3- (3,5-di-) tert-butyl-4-hydroxyphenylpropionamide), 2,4-dimethyl-6- (1-methylpentadecyl) phenol, diethyl [[3,5-bis (1,1-dimethylethyl) -4-hydroxyphenyl ] Methyl] phosphoate, 3,3 ′, 3 ″, 5,5 ′, 5 ″ -hexa-tert-butyl-a, a ′, ''-(Mesitylene-2,4,6-triyl) tri-p-cresol, 4,6-bis (octylthiomethyl) -o-cresol, ethylenebis (oxyethylene) bis [3- (5-tert- Butyl-4-hydroxy-m-tolyl) propionate], hexamethylenebis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 1,3,5-tris (3,5- Di-tert-butyl-4-hydroxybenzyl) -1,3,5-triazine-2,4,6 (1H, 3H, 5H) -trione, 2,6-di-tert-butyl-4- (4 6-bis (octylthio) -1,3,5-triazin-2-ylamino) phenol and the like.

  Among them, pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], octadecyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate preferable. Examples of such commercially available phenolic antioxidants include “Irganox 1010”, “Irganox 1076” manufactured by Ciba, “Adekastab AO-50”, “Adekastab AO-60” manufactured by Adeka, and the like. It is done.

  In addition, 1 type may contain antioxidant and 2 or more types may contain it by arbitrary combinations and a ratio.

  When the aromatic polycarbonate resin composition of the present invention contains an antioxidant, the content thereof is based on a total of 100 parts by mass of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B). Usually 0.0001 parts by mass or more, preferably 0.001 parts by mass or more, more preferably 0.01 parts by mass or more, and usually 3 parts by mass or less, preferably 1 part by mass or less, more preferably 0.5 parts by mass. It is not more than part by mass, more preferably not more than 0.3 part by mass. When the content of the antioxidant is less than the lower limit of the above range, the effect as an antioxidant may be insufficient, and when the content of the antioxidant exceeds the upper limit of the above range, There is a possibility that the effect reaches its peak and is not economical.

<Ultraviolet absorber>
The aromatic polycarbonate resin composition of the present invention preferably contains a UV absorber as desired. By containing the ultraviolet absorber, the weather resistance of the aromatic polycarbonate resin composition of the present invention can be improved.

  Examples of ultraviolet absorbers include inorganic ultraviolet absorbers such as cerium oxide and zinc oxide; organics such as benzotriazole compounds, benzophenone compounds, salicylate compounds, cyanoacrylate compounds, triazine compounds, oxanilide compounds, malonic ester compounds, and hindered amine compounds. Examples include ultraviolet absorbers. In these, an organic ultraviolet absorber is preferable and a benzotriazole compound is more preferable. By selecting the organic ultraviolet absorber, the transparency and mechanical properties of the aromatic polycarbonate resin composition of the present invention are improved.

  Specific examples of the benzotriazole compound include, for example, 2- (2′-hydroxy-5′-methylphenyl) benzotriazole, 2- [2′-hydroxy-3 ′, 5′-bis (α, α-dimethylbenzyl). ) Phenyl] -benzotriazole, 2- (2′-hydroxy-3 ′, 5′-di-tert-butyl-phenyl) -benzotriazole, 2- (2′-hydroxy-3′-tert-butyl-5 ′) -Methylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3 ', 5'-di-tert-butyl-phenyl) -5-chlorobenzotriazole), 2- (2'-hydroxy-3 ', 5'-di-tert-amyl) -benzotriazole, 2- (2'-hydroxy-5'-tert-octylphenyl) benzotriazole, 2 2'-methylenebis [4- (1,1,3,3-tetramethylbutyl) -6- (2N-benzotriazol-2-yl) phenol] and the like, among others 2- (2'-hydroxy- 5′-tert-octylphenyl) benzotriazole, 2,2′-methylenebis [4- (1,1,3,3-tetramethylbutyl) -6- (2N-benzotriazol-2-yl) phenol] are preferred. In particular, 2- (2′-hydroxy-5′-tert-octylphenyl) benzotriazole is preferred. Specific examples of such a benzotriazole compound include “Seesorb 701”, “Seesorb 705”, “Seesorb 703”, “Seesorb 702”, “Seesorb 704”, and “Seesorb 709” manufactured by Sipro Kasei Co., Ltd. “Biosorb 520”, “Biosorb 582”, “Biosorb 580”, “Biosorb 583” manufactured by Yakuhin Kagaku Co., Ltd. “Chemisorb 71”, “Chemisorb 72” manufactured by Chemipro Kasei Co., Ltd. “Siasorb UV5411” manufactured by Cytec Industries, Inc. “ “LA-32”, “LA-38”, “LA-36”, “LA-34”, “LA-31”, “Tinuvin P”, “Tinubin 234”, “Tinubin 326” manufactured by Ciba Specialty Chemicals, “Tinuvin 327”, “Tinuvin 328” and the like can be mentioned.

  Specific examples of the benzophenone compound include, for example, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, 2-hydroxy-4-n-octoxy Benzophenone, 2-hydroxy-n-dodecyloxybenzophenone, bis (5-benzoyl-4-hydroxy-2-methoxyphenyl) methane, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4 4,4′-dimethoxybenzophenone and the like. Specific examples of such a benzophenone compound include “Seesorb 100”, “Seesorb 101”, “Seesorb 101S”, “Seesorb 102”, and “Seesorb 102” manufactured by Cypro Kasei Co., Ltd. Seesorb 103 ", joint medicine “Biosorb 100”, “Biosorb 110”, “Biosorb 130”, manufactured by Kemipro Kasei Co., Ltd. “Chemisorb 10”, “Chemisorb 11”, “Chemisorb 11S”, “Chemisorb 12”, “Chemsorb 13”, “Chemisorb 111” BASF “Ubinur 400”, BASF “Ubinur M-40”, BASF “Ubinur MS-40”, Cytec Industries “Thiasorb UV9”, “Thiasorb UV284”, “Thiasorb UV531”, “Thiasorb” UV24 "," ADEKA STAB 1413 "," ADEKA STAB LA-51 "manufactured by Adeka Corporation and the like.

  Specific examples of the salicylate compound include phenyl salicylate and 4-tert-butylphenyl salicylate. Specific examples of such a salicylate compound include, for example, “Seesorb 201” and “Seesorb” manufactured by Sipro Kasei Co., Ltd. 202 ”,“ Kemisorb 21 ”,“ Kemisorb 22 ”manufactured by Chemipro Kasei Co., Ltd., and the like.

  Specific examples of the cyanoacrylate compound include, for example, ethyl-2-cyano-3,3-diphenyl acrylate, 2-ethylhexyl-2-cyano-3,3-diphenyl acrylate, and the like. Specifically, for example, “Seasorb 501” manufactured by Sipro Kasei Co., Ltd., “Biosorb 910” manufactured by Kyodo Yakuhin Co., Ltd., “Ubisolator 300” manufactured by Daiichi Kasei Co., Ltd., “Ubinur N-35”, “Ubinur N-N-” manufactured by BASF. 539 "and the like.

  Specific examples of the oxanilide compound include, for example, 2-ethoxy-2′-ethyl oxalinic acid bis-arinide and the like. Specific examples of such an oxalinide compound include “Sanduboa” manufactured by Clariant Corporation. VSU "etc. are mentioned.

  As the malonic acid ester compound, 2- (alkylidene) malonic acid esters are preferable, and 2- (1-arylalkylidene) malonic acid esters are more preferable. Specific examples of such a malonic ester compound include “PR-25” manufactured by Clariant Japan, “B-CAP” manufactured by Ciba Specialty Chemicals, and the like.

When the aromatic polycarbonate resin composition of the present invention contains an ultraviolet absorber, the content thereof is based on a total of 100 parts by mass of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B). Usually 0.001 part by mass or more, preferably 0.01 part by mass or more, more preferably 0.1 part by mass or more, and usually 3 parts by mass or less, preferably 1 part by mass or less, more preferably 0.5 parts by mass. It is not more than part by mass, more preferably not more than 0.4 part by mass. If the content of the UV absorber is below the lower limit of the above range, the effect of improving the weather resistance may be insufficient, and if the content of the UV absorber exceeds the upper limit of the above range, the mold Debogit etc. may occur and cause mold contamination.
In addition, 1 type may contain the ultraviolet absorber and 2 or more types may contain it by arbitrary combinations and a ratio.

<Antistatic agent>
The aromatic polycarbonate resin composition of the present invention may contain an antistatic agent as desired. In particular, jet black products with excellent glossiness are conspicuously deteriorated in appearance due to adhesion of dust and the like, and thus containing an antistatic agent is effective in maintaining the product appearance. The antistatic agent is not particularly limited, but is preferably a sulfonic acid phosphonium salt represented by the following general formula (5).

（一般式（５）中、Ｒ^３は炭素数１〜４０のアルキル基又はアリール基であり、置換基を有していても良く、Ｒ^４〜Ｒ^７は、各々独立して水素原子、炭素数１〜１０のアルキル基又はアリール基であり、これらは同じでも異なっていてもよい。）

(In General Formula (5), R ³ is an alkyl group having 1 to 40 carbon atoms or an aryl group, and may have a substituent, and R ^{4 to} R ⁷ are each independently a hydrogen atom or carbon. (It is an alkyl group or an aryl group of formulas 1 to 10, and these may be the same or different.)

R ³ in the general formula (5) is an alkyl group having 1 to 40 carbon atoms or an aryl group, and an aryl group is preferable from the viewpoint of transparency, heat resistance, and compatibility with a polycarbonate resin. A group derived from an alkylbenzene or alkylnaphthalene ring substituted with an alkyl group of 1 to 34, preferably 5 to 20, particularly 10 to 15 is preferable. Further, R ^{4 to} R ⁷ in the general formula (5) are each independently a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group, preferably an alkyl having 2 to 8 carbon atoms, More preferably, it is a 3-6 alkyl group, and especially a butyl group is preferable.

Specific examples of such phosphonium sulfonates include tetrabutylphosphonium dodecylsulfonate, tetrabutylphosphonium dodecylbenzenesulfonate, tributyloctylphosphonium dodecylbenzenesulfonate, tetraoctylphosphonium dodecylbenzenesulfonate, tetraethylphosphonium octadecylbenzenesulfonate. , Tributylmethylphosphonium dibutylbenzenesulfonate, triphenylphosphonium dibutylnaphthylsulfonate, trioctylmethylphosphonium diisopropylnaphthylsulfonate, and the like. Of these, tetrabutylphosphonium dodecylbenzenesulfonate is preferred because it is compatible with polycarbonate and easily available.
These may be used alone or in combination of two or more.

  When the aromatic polycarbonate resin composition of the present invention contains an antistatic agent, the content thereof is based on 100 parts by mass in total of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B). It is preferably 0.1 to 5.0 parts by mass, more preferably 0.2 to 3.0 parts by mass, still more preferably 0.3 to 2.0 parts by mass, and particularly preferably 0.5 to 1. parts by mass. 8 parts by mass. If the content of the antistatic agent is less than 0.1 parts by mass, the antistatic effect cannot be obtained, and if it exceeds 5.0 parts by mass, the transparency and mechanical strength are reduced, and the surface of the molded product has silver and peeling. This is likely to cause poor appearance.

<Other ingredients>
The aromatic polycarbonate resin composition of the present invention may contain other components in addition to those described above as needed, as long as the desired physical properties are not significantly impaired. Examples of other components include various resin additives such as a flame retardant, an antifogging agent, an antiblocking agent, a fluidity improver, a sliding property modifier, a plasticizer, a dispersant, and an antibacterial agent. One of these resin additives may be contained, or two or more thereof may be contained in any combination and ratio.

[Method for producing aromatic polycarbonate resin composition]
There is no restriction | limiting in the manufacturing method of the aromatic polycarbonate resin composition of this invention, The manufacturing method of a well-known aromatic polycarbonate resin composition can be employ | adopted widely.

  Specific examples thereof include the aromatic polycarbonate resin (A), (meth) acrylate copolymer (B), E glass reinforcing material (C), black dye / pigment (D), and, if necessary, according to the present invention. Other ingredients to be blended in advance, for example, using various mixers such as a tumbler, Henschel mixer, super mixer, etc. The method of melt-kneading with mixers, such as a kneader, is mentioned.

  Also, for example, without mixing each component in advance, or only a part of the components are mixed in advance, and fed to an extruder using a feeder, and melt-kneaded, the aromatic polycarbonate resin composition of the present invention It can also be manufactured.

Also, for example, by mixing a part of the components in advance and supplying the resulting mixture to an extruder and melt-kneading it as a master batch, this master batch is again mixed with the remaining components and melt-kneaded. The aromatic polycarbonate resin composition of the present invention can also be produced.
In addition, for example, when mixing a component that is difficult to disperse, the component that is difficult to disperse is dissolved or dispersed in a solvent such as water or an organic solvent in advance, and kneaded with the solution or the dispersion. It can also improve sex.

  Among them, the component (C) (E glass reinforcing material (C)) and the component (E) are mixed in advance and the component (E) is adhered to the surface of the component (C), and then the component (A), (B) The method of mixing the component and the additive component blended as required is more preferable from the viewpoint of effectively suppressing the surface activity of the component (C) and preventing unnecessary side reactions in the resin composition. It is a mixing method. Particularly preferred is a solution in which the component (E) such as an organosilane compound dissolved in a solvent is mixed with the component (C) and then the solvent is evaporated to coat the surface of the component (C) with the component (E). And (A) component, (B) component, and the additive component mix | blended as needed.

  In this case, as the solvent for dissolving the component (E), one or more of organic solvents such as water, alcohol and acetone can be used. Further, in this solution, in order to promote the binding reaction of the component (E) to the surface of the component (C), one or more acid components such as lactic acid, acetic acid and phosphoric acid are added in an amount of 0.05 to 1. Although it may be added at a concentration of about mass%, it is preferable to use a weak acid when an acid component is added. (E) The density | concentration of (E) component in a component solution is the range of 0.01-20 mass% normally, and is suitably adjusted according to the adhesion amount to (C) component. In order to evaporate the solvent, it may be heated to 40 to 100 ° C. At this time, the pressure may be reduced.

  Examples of a method for melt-kneading after mixing each component in advance by the above method include a method using a Banbury mixer, roll, Brabender, single-screw kneading extruder, twin-screw kneading extruder, kneader and the like.

[Aromatic polycarbonate resin molded product]
The aromatic polycarbonate resin composition of the present invention is usually molded into an arbitrary shape and used as an aromatic polycarbonate resin molded article. There is no restriction | limiting in the shape, dimension, etc. of this molded article, What is necessary is just to set arbitrarily according to the use of the molded article.

  The manufacturing method of the aromatic polycarbonate resin molded article of the present invention is not particularly limited, and a molding method generally employed for the aromatic polycarbonate resin composition can be arbitrarily adopted. For example, injection molding method, ultra-high speed injection molding method, injection compression molding method, two-color molding method, hollow molding method such as gas assist, molding method using heat insulating mold, rapid heating mold were used. Molding method, foam molding (including supercritical fluid), insert molding, IMC (in-mold coating molding) molding method, extrusion molding method, sheet molding method, thermoforming method, rotational molding method, laminate molding method, press molding method, etc. Is mentioned. A molding method using a hot runner method can also be used.

  In particular, when the molded product of the present invention is molded using the aromatic polycarbonate resin composition of the present invention, the molding surface in the cavity is made of a material having a thermal conductivity of 0.3 to 6.3 W / m · K. It is preferable to mold using a mold (hereinafter, this mold may be referred to as a “heat-insulating mold”). By using such a heat-insulating mold, By preventing the E glass reinforcement (C) from floating on the surface of the molded product due to rapid cooling of the resin composition, forming a transparent resin layer on the surface of the molded product, and improving the transferability of the mold surface, jet black In addition, the appearance of the molded product can be further improved.

Such a heat insulating mold is preferably a molding surface in the cavity, and a molding surface corresponding to at least the largest of the contour constituent surfaces of the outer surface of the resin molded product has a thermal conductivity of 0.3 to 6. A mold composed of a material of 3 W / m · K, for example, various materials having the above-described thermal conductivity on the inner surface of the cavity, for example, zirconia-based material, alumina-based material, K ₂ O—TiO ₂ Those coated with a coating material such as various types of glass selected from the group of ceramics, soda glass, quartz glass, heat-resistant glass, and crystallized glass selected from the group can be used. Specific examples of the ceramics include ZrO ₂ , ZrO ₂ —CaO, ZrO ₂ —Y ₂ O ₃ , ZrO ₂ —MgO, ZrO ₂ —SiO ₂ , K ₂ O—TiO ₂ , Al ₂ O ₃ , Al _2. Examples include O ₃ —TiC, Ti ₃ N ₂ , 3Al ₂ O ₃ -2SiO ₂ , MgO—SiO ₂ , 2MgO—SiO ₂ , MgO—Al ₂ O ₃ —SiO ₂ , and the coating materials include ZrO ₂ and ZrO. Any material selected from the group of _2- Y ₂ O ₃ , quartz glass, and crystallized glass is preferable.

The structure of the covering material may be, for example, any of a coating structure, a thermal spray structure, and a sticking structure (ie, a nesting type) depending on the type of material.
The thickness of the covering material is usually 0.1 to 10 mm, preferably 0.5 to 5 mm, although it depends on the thermal conductivity and the above structure. Moreover, the surface roughness of a coating | covering material is 0.01-15 micrometers normally as Rz.

  Furthermore, a metal layer can be provided in order to improve the scratch resistance of the mold surface layer and increase the surface hardness. In this case, the metal layer is made of at least one material selected from the group consisting of Cr materials such as Cr and Cr alloys, Cu materials such as Cu and Cu alloys, Ni materials such as Ni and Ni alloys, The metal layer may be composed of one layer or a plurality of layers. Specific examples of the Cr alloy include a nickel-chromium alloy. Specific examples of the Cu alloy include a copper-zinc alloy, a copper-cadmium alloy, and a copper-tin alloy. Further, as the Ni alloy, specifically, nickel-phosphorus alloy (Ni-P alloy), nickel-iron alloy, nickel-cobalt alloy, nickel-tin alloy, nickel-iron-phosphorus alloy (Ni-Fe- P-based alloy) and nickel-cobalt-phosphorous alloy (Ni-Co-P-based alloy). When high scratch resistance is required for the metal layer, for example, the metal layer is preferably composed of a chromium (Cr) material. On the other hand, the metal layer is not required to have much scratch resistance, but when the thickness is required, for example, the metal layer is preferably made of a copper (Cu) material. Furthermore, when the metal layer is required to have a certain degree of scratch resistance and also needs a thickness, for example, the metal layer is preferably made of a nickel (Ni) material. Further, when the metal layer is required to have a thickness and surface hardness is required, the metal layer has a two-layer structure, for example, the lower layer is formed of a copper (Cu) material or a nickel (Ni) material. It is preferable to adjust the thickness to a desired thickness, while the upper layer is preferably made of a thin chromium (Cr) material.

  Examples of application of the molded article of the present invention thus manufactured include electrical and electronic equipment, OA equipment, information terminal equipment, machine parts, home appliances, vehicle parts, building members, various containers, leisure goods and miscellaneous goods. And parts such as lighting equipment. Among these, the molded article of the present invention is particularly suitable for use in parts such as electric and electronic equipment, OA equipment, information terminal equipment, and home appliances because of its excellent jet-black appearance, surface hardness, and mechanical properties. It is particularly suitable for use in electrical and electronic equipment, OA equipment, information terminal equipment, car interior parts, and home appliance housings.

  Examples of the electrical and electronic devices include display devices such as personal computers, game machines, televisions, car navigation systems, and electronic paper, printers, copy machines, scanners, fax machines, electronic notebooks and tablet terminals (PDAs), smartphones, and electronic desk calculators. Electronic dictionaries, cameras, video cameras, mobile phones, battery packs, recording medium drives and reading devices, mice, numeric keys, CD players, MD players, portable radio / audio players, and the like. Especially, it can use suitably for the designable parts of housing | casings, such as a television, a personal computer, a car navigation system, and electronic paper.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples, and can be arbitrarily modified and implemented without departing from the gist of the present invention. In the following description, “parts” means “parts by mass” based on mass standards unless otherwise specified.

  Measurement / evaluation methods and materials used in the following Examples and Comparative Examples are as follows.

[Measurement and evaluation method]
<Measurement and calculation of mass average molecular weight (Mw)>
First, the average molecular weight was measured under the following conditions by gel permeation chromatography (GPC) using polystyrene (PS) as a standard polymer.
Apparatus: Alliance made by Waters
Column: Showa Denko "Shodex K-805L" (two)
Detector; UV detector 254 nm
Eluent: Chloroform Then, after GPC measurement, the relationship between the elution time and the molecular weight of polycarbonate (PC) was determined by a universal calibration method to obtain a calibration curve. The elution curve (chromatogram) of PC was measured under the same conditions as in the calibration curve, and the mass average molecular weight was determined from the elution time (molecular weight) and the peak area (number of molecules) of the elution time.
The mass average molecular weight (Mw) is Mw = Σ (NiMi ² ) / Σ (NiMi) where Ni is the number of molecules of the molecular weight Mi.
It is represented by
The following formula was used as the conversion formula. In the calculation formula, MPC represents the molecular weight of PC, and MPS represents the molecular weight of PS. The calculation formula is obtained from the following Mark-Houwink formula representing the relationship between the intrinsic viscosity [η] and the molecular weight M. However, the values of K and α are values of K: 1.11 × 10 ⁻⁴ and α: 0.725 in the case of PS and K: 3.89 × 10 ⁻⁴ and α: 0.700 in the case of PC. It was used.
MPC = 0.47822MPS ^1.01470
MPS = 2.0689 ^{MPC 0.98551}
[Η] = KM ^α
The elution curve (chromatogram) of the polycarbonate was measured under the same conditions as in the calibration curve, and the mass average molecular weight was determined from the elution time (molecular weight) and the peak area (number of molecules) of the elution time.
The (meth) acrylate copolymer was calculated from a PS calibration curve using THF as an eluent and “TSKgel SuperHZM-M (4)” manufactured by Tosoh as a column.

<Blackness>
The appearance of the flat plate test piece (2 mm thickness) produced by the method described later was visually observed and evaluated according to the following criteria. The results are shown in Table 1. In the table, it is expressed as “jet black”.
○: Glossy and good jetness △: Glossy and jetness slightly inferior ×: No glossiness and jetness inferior

<Surface hardness evaluation>
According to JIS K5400, the scratch test was performed 5 times on the flat plate test piece (2 mm thickness) to evaluate the hardness. The results are shown in Table 1. In the table, it is expressed as “pencil hardness”.

[Materials used]
<Aromatic polycarbonate resin (A)>
Product name “Iupilon (registered trademark) E-2000” manufactured by Mitsubishi Engineering Plastics Co., Ltd., mass average molecular weight: 35,500, pencil hardness: 2B

<(Meth) acrylate copolymer (B)>
In a heatable reaction vessel equipped with a thermometer, a nitrogen inlet tube, a reflux condenser, and a stirrer, 200 parts of deionized water, 0.3 part of a dispersant, 0.5 part of sodium sulfate, 2,2′- Charge 0.3 parts of azobisisobutyronitrile, 15 parts of phenyl methacrylate, 84 parts of methyl methacrylate, 1 part of methyl acrylate, and 1.8 parts of n-octyl mercaptan. The inside of the reaction vessel was replaced with nitrogen, and the temperature was raised to 80 ° C. Warm up. After stirring for 4 hours, the resulting bead polymer was washed with water and dried to obtain a (meth) acrylate copolymer. The pencil hardness was 2H and the mass average molecular weight was 15,000.

  As the aforementioned dispersant, a polymer obtained by copolymerizing 70 parts of potassium methacrylate and 30 parts of methyl methacrylate, and a polymer obtained by copolymerizing 65 parts of sodium 2-sulfoethyl methacrylate, 10 parts of potassium methacrylate, and 25 parts of methyl methacrylate. Mixing was performed at a mass ratio of 1: 1, and a 10% aqueous solution of the mixed polymer was used.

<E glass reinforcement (C)>
E glass chopped strand: product name “T-571” manufactured by Nippon Electric Glass Co., Ltd., refractive index: 1.56, average fiber diameter: 13 μm, average fiber length: 3 mm, aminosilane treatment, heat-resistant urethane convergence

<Black dye (D)>
(D-1) Carbon black: product name “Royal Black 967G” manufactured by Koshigaya Kasei Co., Ltd., carbon black / styrene masterbatch (carbon black content: 40% by mass)
(D-2) Black dye: manufactured by Sumika Chemtex Co., Ltd. Trade name “Sumiplast BLACK HLG”, RED / VIOLET / GREEN dye and carbon black

  The pencil hardness of the aromatic polycarbonate resin (A) and the (meth) acrylate copolymer (B) is a value measured in the same manner as in the above <Surface hardness evaluation>.

[Examples 1 and 2, Comparative Examples 1 and 2]
<Manufacture of resin pellets>
Each of the above components were blended at a mass ratio shown in Table 1 and mixed for 20 minutes with a tumbler, then supplied to Nippon Steel Works (TEX30HSST) equipped with 1 vent, screw rotation speed 200 rpm, discharge amount 20 kg The molten resin kneaded under conditions of a barrel temperature of 250 ° C./hour and extruded into a strand shape was quenched in a water bath and pelletized using a pelletizer to obtain pellets of a polycarbonate resin composition.

<Preparation of test piece>
After the pellets obtained by the above production method were dried at 100 ° C. for 5 hours, the cylinder temperature was 270 using the following heat insulating mold in an injection molding machine (“M150AII-SJ” manufactured by Meiki Seisakusho). Injection molding was carried out under the conditions of C., mold temperature of 90.degree. C., and molding cycle of 50 seconds to produce a flat plate test piece having a thickness of 50.times.90.times.2 mm.
As the heat insulating mold, a zirconia ceramic (thermal conductivity: 3.8 W / m · K) having a Ni—P layer having a thickness of 100 μm formed by an electroless plating method was used.

[Evaluation results]

[Discussion]
As is apparent from Table 1, E glass reinforcement (C) and black dye pigment (D) are added to a resin component containing an aromatic polycarbonate resin (A) and a (meth) acrylate copolymer (B) in a predetermined ratio. In Examples 1 and 2 blended with Comparative Example 1 and 2 that do not contain the (meth) acrylate copolymer (B), the L value is small, the jetness is excellent, and the surface hardness is high.

Claims (6)

  60 to 85% by mass of the aromatic polycarbonate resin (A) having a mass average molecular weight of 15,000 to 40,000, and the mass ratio of the aromatic (meth) acrylate unit (b1) and the methyl methacrylate unit (b2) (b1 / b2 ) Is 5 to 50/50 to 95, and the mass average molecular weight is 5,000 to 30,000 (meth) acrylate copolymer (B) with respect to 100 parts by mass of the resin component, An aromatic polycarbonate resin composition comprising 1 to 100 parts by mass of an E glass reinforcing material (C) and 0.01 to 10 parts by mass of a black dye / pigment (D).   The aromatic polycarbonate resin composition according to claim 1, wherein the E glass reinforcing material (C) is in the form of fibers and / or flakes. Further, as the component (E), an organosilane compound (E-1) and / or a silicone compound (E-2) represented by the following formula (1) is 0.5% relative to the E glass reinforcing material (C). The aromatic polycarbonate resin composition according to claim 1, which contains ˜13% by mass.
(R ¹ O) _p SiR ² _4-p (1)
(In the formula, R ¹ and R ² represent organic groups, and p represents an integer of 1 to 4.)   The aromatic polycarbonate resin composition according to claim 3, wherein an E glass reinforcing material (C) surface-treated with the component (E) is added to the resin component.   An aromatic polycarbonate resin molded article obtained by molding the aromatic polycarbonate resin composition according to any one of claims 1 to 4.   6. The aromatic polycarbonate resin according to claim 5, wherein the molding surface in the cavity is molded using a mold made of a material having a thermal conductivity of 0.3 to 6.3 W / m · K. Molding.