JP2023110208A - Polycarbonate resin composition and molded article - Google Patents

Abstract

To provide a polycarbonate resin composition excellent in thermal stability and molding appearance.SOLUTION: The polycarbonate resin composition contains, based on 100 pts.wt. of a resin component comprising (A) 45-65 pts.wt. of a polycarbonate resin (component A) and (B) 35-55 pts.wt. of a polyethylene terephthalate resin (component B), (C) 1.0-4.0 pts.wt. of a polyoxyalkylene bisphenol ether (component C) having a molecular weight of less than 1,300 as a plasticizer, (D) 0.03-0.1 pt.wt. of an organophosphate compound (component D) represented by general formula (1), and (E) 0-20 pts.wt. of an inorganic filler (component E) and does not contain an impact modifier.SELECTED DRAWING: None

Description

TECHNICAL FIELD The present invention relates to a polycarbonate resin composition and a molded product having excellent thermal stability and molded appearance.

A polycarbonate/polyethylene terephthalate alloy obtained by alloying a polycarbonate resin and a polyethylene terephthalate resin is widely used in the automobile field because of its excellent mechanical properties and chemical resistance. In addition, in recent years, automobile exterior parts have been integrated to reduce assembly man-hours, and the development of large-sized parts has become active. Therefore, in order to obtain a good molding appearance even for large-sized parts, there is an increasing demand for a resin having higher fluidity than before. As a method for improving this fluidity, a method of adding a polyalkylene glycol component as a plasticizer has been studied (see, for example, Patent Document 1). However, the effect of improving the molded appearance differs depending on the component of the plasticizer, and the plasticizer generally has a low molecular weight, so that the thermal stability of the resin composition is also deteriorated. As a result, non-uniformity and irregularities occur, making it impossible to obtain a satisfactory molding appearance. In addition, the plasticizer decomposes during the process of being held at high temperature in the cylinder, and the resulting gas causes an appearance defect called silver. There is a problem that arises.

Japanese Patent No. 6889221

In view of the above, it is an object of the present invention to provide a polycarbonate resin composition and a molded product, particularly automotive exterior parts, which are excellent in thermal stability and molded appearance.

According to the present invention, the above problems are solved by the following configuration.
1. (A) Polycarbonate resin (A component) 45 to 65 parts by weight and (B) polyethylene terephthalate resin (B component) 35 to 55 parts by weight for 100 parts by weight of the resin component, (C) a poly 1.0 to 4.0 parts by weight of oxyalkylene bisphenol ether (component C), (D) 0.03 to 0.1 parts by weight of an organic phosphoric acid ester compound represented by the following general formula (1) (component D) and (E) 0 to 20 parts by weight of an inorganic filler (E component), and containing no impact modifier.

[In the formula (1), R represents an optionally substituted alkyl group having 2 to 25 carbon atoms, and n represents 1 or 2. However, when n is 2, the two R's may be different from each other. ]

2. 2. The polycarbonate resin composition according to the preceding item 1, wherein the E component is mica.
3. 3. A molded article obtained by molding the polycarbonate resin composition according to 1 or 2 above.
4. 3. The molded article according to the preceding item 3, which is an automobile exterior part.

INDUSTRIAL APPLICABILITY The polycarbonate resin composition of the present invention is excellent in thermal stability and molded appearance, and is widely useful in electrical/electronic applications, mechanical applications, OA applications, automotive exterior parts, medical applications and other various applications. Above all, it provides a very useful molded article as an exterior part for automobiles, and the industrial effect of the present invention is extremely large.

The details of the present invention will be further described below.

<A component: Polycarbonate resin>
The polycarbonate resin used in the present invention is obtained by reacting a dihydric phenol and a carbonate precursor. Examples of the reaction method include an interfacial polycondensation method, a melt transesterification method, a solid-phase transesterification method of a carbonate prepolymer, and a ring-opening polymerization method of a cyclic carbonate compound.

Representative examples of dihydric phenols used herein include hydroquinone, resorcinol, 4,4′-dihydroxydiphenyl, bis(4-hydroxyphenyl)methane, bis{(4-hydroxy-3,5-dimethyl) phenyl}methane, 1,1-bis(4-hydroxyphenyl)ethane, 1,1-bis(4-hydroxyphenyl)-1-phenylethane, 2,2-bis(4-hydroxyphenyl)propane (commonly known as bisphenol A ), 2,2-bis{(4-hydroxy-3-methyl)phenyl}propane, 2,2-bis{(4-hydroxy-3,5-dimethyl)phenyl}propane, 2,2-bis{(3 -isopropyl-4-hydroxy)phenyl}propane, 2,2-bis{(4-hydroxy-3-phenyl)phenyl}propane, 2,2-bis(4-hydroxyphenyl)butane, 2,2-bis(4 -hydroxyphenyl)-3-methylbutane, 2,2-bis(4-hydroxyphenyl)-3,3-dimethylbutane, 2,4-bis(4-hydroxyphenyl)-2-methylbutane, 2,2-bis( 4-hydroxyphenyl)pentane, 2,2-bis(4-hydroxyphenyl)-4-methylpentane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,1-bis(4-hydroxyphenyl)-4 -isopropylcyclohexane, 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 9,9-bis(4-hydroxyphenyl)fluorene, 9,9-bis{(4-hydroxy-3 -methyl)phenyl}fluorene, α,α'-bis(4-hydroxyphenyl)-o-diisopropylbenzene, α,α'-bis(4-hydroxyphenyl)-m-diisopropylbenzene, α,α'-bis( 4-hydroxyphenyl)-p-diisopropylbenzene, 1,3-bis(4-hydroxyphenyl)-5,7-dimethyladamantane, 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxydiphenylsulfoxide, 4, 4'-dihydroxydiphenyl sulfide, 4,4'-dihydroxydiphenyl ketone, 4,4'-dihydroxydiphenyl ether and 4,4'-dihydroxydiphenyl ester, etc., and these can be used alone or in combination of two or more. .

Bisphenol A, 2,2-bis{(4-hydroxy-3-methyl)phenyl}propane, 2,2-bis(4-hydroxyphenyl)butane, 2,2-bis(4-hydroxyphenyl)-3- methylbutane, 2,2-bis(4-hydroxyphenyl)-3,3-dimethylbutane, 2,2-bis(4-hydroxyphenyl)-4-methylpentane, 1,1-bis(4-hydroxyphenyl)- A homopolymer or copolymer obtained from at least one bisphenol selected from the group consisting of 3,3,5-trimethylcyclohexane and α,α'-bis(4-hydroxyphenyl)-m-diisopropylbenzene is preferred. , especially homopolymers of bisphenol A and 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane with bisphenol A, 2,2-bis{(4-hydroxy-3-methyl)phenyl } A copolymer with propane or α,α'-bis(4-hydroxyphenyl)-m-diisopropylbenzene is preferably used.

Carbonate precursors include carbonyl halides, carbonate esters, haloformates, and the like, and specific examples include phosgene, diphenyl carbonate, dihaloformates of dihydric phenols, and the like.

In producing a polycarbonate resin by reacting the above dihydric phenol and a carbonate precursor by an interfacial polycondensation method or a melt transesterification method, a catalyst, a terminal terminator, an antioxidant for the dihydric phenol, etc. are used as necessary. You may The polycarbonate resin may be a branched polycarbonate resin obtained by copolymerizing a trifunctional or higher polyfunctional aromatic compound, or a polyester carbonate resin obtained by copolymerizing an aromatic or aliphatic bifunctional carboxylic acid. Moreover, the mixture which mixed 2 or more types of obtained polycarbonate resin may be sufficient.

Reaction formats such as the interfacial polymerization method, the melt transesterification method, the solid-phase transesterification method of a carbonate prepolymer, and the ring-opening polymerization method of a cyclic carbonate compound, which are the methods for producing the polycarbonate resin of the present invention, can be found in various literatures and patent publications. This is a well-known method such as The molecular weight of the polycarbonate resin is not specified, but if the molecular weight is less than 1×10 ⁴ , the high-temperature characteristics deteriorate, and if it exceeds 4×10 ⁴ , the moldability deteriorates. 1×10 ⁴ to 4×10 ⁴ is preferred, 1.4×10 ⁴ to 3×10 ⁴ is more preferred, and 1.6×10 ⁴ to 2.5×10 ⁴ is even more preferred. be.

Two or more kinds of polycarbonate resins may be mixed. In this case, it is of course possible to mix a polycarbonate resin having a viscosity-average molecular weight outside the above range.

The viscosity-average molecular weight referred to in the present invention is obtained by inserting the specific viscosity (η _SP ) obtained from a solution of 0.7 g of polycarbonate resin dissolved in 100 ml of methylene chloride at 20° C. into the following equation.
η _SP /c=[η]+0.45×[η] ² c (where [η] is the intrinsic viscosity)
[η]=1.23×10 ⁻⁴ M ^0.83
c=0.7

The content of the A component is 45 to 65 parts by weight, preferably 46 to 64 parts by weight, more preferably 48 to 63.5 parts by weight, and even more preferably 48 to 63.5 parts by weight, based on 100 parts by weight of the resin component consisting of the A component and the B component. is 50-63 parts by weight. If the content of the A component is less than 45 parts by weight, the thermal stability is deteriorated, and if it exceeds 65 parts by weight, the molding appearance is deteriorated.

<B component: polyethylene terephthalate resin>
The polyethylene terephthalate resin used in the present invention is a polymer or copolymer obtained by a condensation reaction of an aromatic dicarboxylic acid or its reactive derivative and a diol or its ester derivative as main components.

Terephthalic acid can be used as the aromatic dicarboxylic acid referred to herein. If the amount is small, it is also possible to mix and use one or more kinds of aliphatic dicarboxylic acids such as adipic acid, azelaic acid, sebacic acid and dodecanedioic acid, and alicyclic dicarboxylic acids such as cyclohexanedicarboxylic acid together with the dicarboxylic acid. .

Moreover, the diol which is a component of the polyethylene terephthalate resin of the present invention is ethylene glycol. Further, if the amount is small, one or more long-chain diols having a molecular weight of 400 to 6,000, ie, polyethylene glycol, poly-1,3-propylene glycol, polytetramethylene glycol, etc. may be copolymerized.

The terminal group structure of the obtained polyethylene terephthalate resin is not particularly limited, and the terminal groups may have hydroxyl groups and carboxyl groups in a proportion other than approximately the same amount, or may have a larger proportion of one group. Moreover, those terminal groups may be blocked by, for example, reacting a compound having reactivity with such terminal groups.

The method for producing the alkylene glycol ester of an aromatic dicarboxylic acid and its low polymer is not limited, but usually an aromatic dicarboxylic acid or an ester-forming derivative thereof and an alkylene glycol or an ester-forming derivative thereof are reacted by heating. Manufactured by For example, ethylene glycol of terephthalic acid and its low polymer used as a raw material for polyethylene terephthalate resin are obtained by direct esterification reaction of terephthalic acid and ethylene glycol, or transesterification of lower alkyl ester of terephthalic acid and ethylene glycol. or addition reaction of terephthalic acid with ethylene oxide. In addition, the alkylene glycol ester of the aromatic dicarboxylic acid and the low polymer thereof may contain another dicarboxylic acid ester copolymerizable therewith as an additional component within a range that does not substantially impair the effect of the method of the present invention. Specifically, it may be contained in an added amount within the range of 10 mol % or less, preferably 5 mol % or less based on the total molar amount of the acid component.

Said copolymerizable additional components are preferably used as acid components, for example aliphatic and cycloaliphatic dicarboxylic acids such as adipic acid, sebacic acid, 1,4-cyclohexanedicarboxylic acid, and hydroxycarboxylic acids, for example One or more of β-hydroxyethoxybenzoic acid, p-oxybenzoic acid, and the like, and glycol components such as alkylene glycol having 2 or more carbon atoms, 1,4-cyclohexanedimethanol, neopentyl glycol, and bisphenol A. , esters with one or more of aliphatic, alicyclic, aromatic diol compounds such as bisphenol S, and polyoxyalkylene glycols, or anhydrides thereof. The postscript component ester may be used alone, or two or more thereof may be used in combination. However, the copolymerization amount is preferably within the above range.

In the polyethylene terephthalate resin used in the present invention, the timing of adding the catalyst to the starting material for polymerization may be any stage before the initiation of the polycondensation reaction of the aromatic dicarboxylic acid alkylene glycol ester and its low polymer. Furthermore, there are no restrictions on the method of addition. For example, an aromatic dicarboxylic acid alkylene glycol ester may be prepared and a catalyst solution or slurry may be added to the reaction system to initiate the polycondensation reaction, or the aromatic dicarboxylic acid alkylene glycol ester may be A solution or slurry of the catalyst may be added to the reaction system along with the starting materials during preparation or after the preparation.

There are no particular restrictions on the reaction conditions for producing the polyethylene terephthalate resin used in the present invention. In general, the polycondensation reaction is preferably carried out at a temperature of 230 to 320° C. under normal pressure, under reduced pressure (0.1 Pa to 0.1 MPa), or a combination of these conditions for 15 to 300 minutes. .

In the polyethylene terephthalate resin used in the present invention, if necessary, a reaction stabilizer such as trimethyl phosphate may be added at any stage in the production. , fluorescent brightening agents, matting agents, color conditioning agents, antifoaming agents, and other additives. In particular, the polyethylene terephthalate resin preferably contains an antioxidant containing at least one hindered phenol compound, and the content thereof is 1% by weight or less with respect to the weight of the polyethylene terephthalate resin. is preferred. If the content exceeds 1% by weight, the heat deterioration of the antioxidant itself may cause the inconvenience of deteriorating the quality of the obtained product.

Antioxidant hindered phenol compounds used in the polyethylene terephthalate resin used in the present invention include pentaerythritol-tetraextract [3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], 3, 9-bis{2-[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy]-1,1-dimethylethyl}-2,4,8,10-tetraoxaspiro[5 , 5] undecane, etc. It is also preferable to use these hindered phenol-based antioxidants and thioether-based secondary antioxidants in combination. The method for adding the above hindered phenolic antioxidant to the terephthalate resin is not particularly limited, but preferably at any stage between the completion of the transesterification reaction or the esterification reaction and the completion of the polymerization reaction. added.

The intrinsic viscosity of the polyethylene terephthalate resin is preferably 0.40 to 1.00. A more preferable range of the intrinsic viscosity is 0.45 to 0.95, more preferably 0.50 to 0.90. When the intrinsic viscosity of the polyester resin is less than 0.40, sufficient impact properties and chemical resistance may not be obtained. Molding appearance defects such as defects may occur. The intrinsic viscosity of polyethylene terephthalate resin is dissolved in orthochlorophenol and measured at a temperature of 35°C. Polyethylene terephthalate resin obtained by solid-phase polycondensation is often used for general bottles and the like, so it is contained in terephthalate resin and has an intrinsic viscosity of 0.70 to 0.90. It is preferable that the content of the cyclic trimer of the ester of aromatic dicarboxylic acid and alkylene glycol is 0.5 wt % or less and the content of acetaldehyde is 5 ppm or less. Said cyclic trimers include alkylene terephthalates such as ethylene terephthalate, trimethylene terephthalate, tetramethylene terephthalate, and alkylene naphthalates such as ethylene naphthalate, trimethylene naphthalate, tetramethylene naphthalate and hexamethylene naphthalate. contain.

<Component C: Polyoxyalkylene bisphenol ether>
The polyoxyalkylene bisphenol ether used as the C component in the present invention acts as a plasticizer. Specific examples of polyoxyalkylene bisphenol ethers include compounds obtained by adding ethylene oxide (EO) to bisphenol A, such as polyethylene glycol bisphenol A ether and polyethylene glycol-polypropylene glycol bisphenol A ether. These compounds can be used alone or in combination of two or more. When a compound other than polyoxyalkylene bisphenol ether is used as a plasticizer, the effect of improving the molding appearance is small, and furthermore, when trying to obtain a good molding appearance, it is necessary to add it excessively, resulting in poor thermal stability. Getting worse.

The polyoxyalkylene bisphenol ether of the present invention preferably has a cyclic hydrocarbon group such as an aromatic hydrocarbon group or an alicyclic hydrocarbon group. It is preferable from the point of

(In the formula, -A- is an alkylene group having 1 to 20 carbon atoms, and R ¹ , R ² , R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ and R ⁸ are hydrogen atoms or carbon atoms a monovalent hydrocarbon group of 1 to 5, R ⁹ and R ¹⁰ are divalent hydrocarbon groups of 1 to 5 carbon atoms, and R ¹¹ and R ¹² are hydrogen atoms or 1 having 1 to 20 carbon atoms; are valent hydrocarbon groups, which may be the same or different, m and n represent the number of repeating oxyalkylene units, and are natural numbers satisfying 2≤m+n≤18.)

The molecular weight of component C is less than 1,300, preferably less than 1,200, and more preferably less than 1,100. When the molecular weight of the C component is 1300 or more, the effect of improving the molding appearance is small. Although the lower limit of the molecular weight of the C component is not particularly limited, it is preferably 300 or more. The content of the C component is 1.0 to 4.0 parts by weight, preferably 1.5 to 3.5 parts by weight, more preferably 1 part by weight, per 100 parts by weight of the resin component consisting of the A component and the B component. .9 to 3.3 parts by weight. If the content of the C component is less than 1.0 parts by weight, the molding appearance will be deteriorated, and if it exceeds 4.0 parts by weight, the thermal stability will be deteriorated.

<D Component: Organic Phosphate Ester Compound>
The organic phosphoric acid ester compound used in the present invention is a compound represented by general formula (1).

[In the formula (1), R represents an optionally substituted alkyl group having 2 to 25 carbon atoms, and n represents 1 or 2. However, when n is 2, the two R's may be different from each other. ]
When a component other than the organic phosphoric acid ester compound represented by the above formula (1) is used as component D, the effect of improving thermal stability is small.

Examples of organic phosphate compounds include AX-71 (trade name) manufactured by ADEKA and JP-518S, JP-504, JP-508 and JP-524R (trade name) manufactured by Johoku Kagaku.

The content of component D is 0.03 to 0.10 parts by weight, preferably 0.04 to 0.09 parts by weight, more preferably 0 parts by weight, per 100 parts by weight of the resin component consisting of A component and B component. 0.05 to 0.08 parts by weight. If the content of Component D is less than 0.03 parts by weight, the thermal stability will deteriorate, and if it exceeds 0.10 parts by weight, the molding appearance will deteriorate.

<E component: inorganic filler>
Inorganic fillers used in the present invention include mica, wollastonite, talc, etc., but mica is preferred. The average diameter of mica is preferably 10-30 μm, more preferably 13-25 μm, still more preferably 15-20 μm. If the average diameter is less than 10 μm, the effect of improving the coefficient of linear expansion and rigidity may be small.

Examples of mica include, for example, muscovite, phlogopite, biotite, and the like.
Moreover, the mica may be surface-treated with a coupling agent such as a silane-based coupling agent or a titanate-based coupling agent. Silane-based coupling agents include, for example, epoxysilane, aminosilane, and vinylsilane. Titanate-based coupling agents include, for example, monoalkoxy type, chelate type, coordination type, and the like. There is no particular limitation on the method of surface-treating mica with a coupling agent, and a conventional method can be used. For example, 0.1 to 10% by weight of a coupling agent is added to mica and mixed at high speed while heating.

The content of component E is 0 to 20 parts by weight, preferably 5 to 19.5 parts by weight, and 8 to 19 parts by weight with respect to 100 parts by weight of the resin component consisting of components A and B. is more preferred. If the content of component E exceeds 20 parts by weight, the molding appearance will be deteriorated.

The polycarbonate resin composition of the present invention may contain stabilizers such as phosphite-based and phenol-based stabilizers, light stabilizers, flame retardants, lubricants, release agents, ultraviolet absorbers, antistatic agents, pigments/dyes, and the like. .

The polycarbonate resin composition of the present invention does not contain an impact modifier. When the impact modifier is contained, the orientation of the inorganic filler is disturbed, resulting in deterioration of the molding appearance.

The polycarbonate resin composition of the present invention can be produced by any method. For example, it is produced by mixing using a blender, super mixer, or the like, or kneading with a single-screw or multi-screw extruder. Mixing and kneading may be carried out by collectively mixing polycarbonate resin, polyethylene terephthalate resin, polyoxyalkylene bisphenol ether, organic phosphoric acid ester compound and inorganic filler. may be mixed and kneaded with the remainder.

The polycarbonate resin composition thus obtained is molded into automobile parts, electric/electronic parts, etc. by various known methods such as injection molding, extrusion molding, etc., and the molded articles have thermal stability and Excellent molded appearance.

EXAMPLES The reinforced resin composition of the present invention will be specifically described below based on examples. "Parts" in the following measurement conditions, examples, etc. represent "parts by weight" respectively.
"Materials used"
<A component: Polycarbonate resin>
A: L-1225WX (trade name) (manufactured by Teijin Limited, average molecular weight 19700)
<B component: polyethylene terephthalate resin>
B: TRN-MTJ (manufactured by Teijin Limited, logarithmic viscosity 0.53)
<Component C: Polyoxyalkylene bisphenol ether>
C-1: Bisol 18EN (trade name) (manufactured by Toho Chemical Industry, average molecular weight 1010, polyalkylenebisphenol ether)
C-2: BPE-20T (trade name) (manufactured by Sanyo Chemical Industries, average molecular weight 326, polyalkylenebisphenol ether)
C-3 (Comparative Example): Bisol 30EN (trade name) (manufactured by Toho Chemical Industry, average molecular weight 1600, polyalkylenebisphenol ether)
C-4 (comparative example): P-1010 (trade name) (manufactured by Kuraray, average molecular weight 1000, adipic acid polyol)

<D Component: Organic Phosphate Ester Compound>
D-1: AX-71 (trade name) (manufactured by ADEKA, compound in which R is C ₁₈ H ₃₇ in formula (1))
D-2 (comparative example): JC-224 (trade name) (manufactured by Johoku Chemical, ethyldiethylphosphonoacetate)
<E component: inorganic filler>
E: GM-6 (trade name) (manufactured by GreaMinerals, average diameter 17 μm, mica)

<Other ingredients>
(Ultraviolet absorber)
LA-31 (trade name) (manufactured by ADEKA)
(Release agent)
EW-400 (trade name) (manufactured by Riken Vitamin)
(Carbon masterbatch)
ROYAL BLACK90003S (trade name) (manufactured by Koshigaya Kasei Kogyo Co., Ltd.)
(Impact modifier)
MB (butadiene rubber-containing methyl methacrylate graft copolymer): A mixed monomer obtained by adding butyl acrylate (BA) to methyl methacrylate (MMA) as a graft component to butadiene rubber polymerized only by emulsion polymerization using sodium dodecylbenzenesulfonate as an emulsifier. A graft copolymer having a volume average particle size of 180 nm obtained by emulsion graft polymerization under an emulsifier of sodium dodecylbenzenesulfonate

<Production of resin composition>
(Examples 1 to 10 and Comparative Examples 1 to 11)
The components shown in Table 1 were premixed in the proportions shown in Table 1, and melt-kneaded at 270° C. using a twin-screw extruder [TEX30α-31 manufactured by Nippon Steel Works] to produce pellets.

<Evaluation method>
The obtained pellets were dried at 120° C. for 5 hours or more in a hot air circulating dryer, and evaluated by the following evaluation method. Table 1 shows the results.
1. Thermal stability evaluation Using an injection molding machine [ROBOSHOT α-S100iA manufactured by FANUC], a cylinder temperature of 280°C and a mold temperature of 80°C were retained for 10 minutes to form a plate (thickness: 2 mm, width: 5 cm, length: 9 cm). At that time, the appearance was observed with the naked eye and evaluated according to the following criteria.
○: The area where silver is generated is less than 10 cm ² ×: The area where silver is generated is 10 cm ² or more2. Molding appearance evaluation Using an injection molding machine [EC130SX2-4Y manufactured by Toshiba Machine Engineering], a square plate (length 150 mm × width 150 mm × thickness 2 0.5 mm) was molded and its appearance was observed with the naked eye and judged according to the following criteria.
◯: Surface unevenness and irregularities are hardly observed.
x: Remarkable non-uniformity and unevenness of the surface.

As shown in Table 1, according to the resin composition of the present invention, it is possible to provide a polycarbonate resin composition excellent in thermal stability and external appearance after molding.

INDUSTRIAL APPLICABILITY The resin composition and molded article of the present invention can be used for automotive exterior parts such as housings for electric/electronic/OA equipment, interior panels, roof spoilers, window garnishes, roof panels and the like.

Claims (4)

(A) Polycarbonate resin (A component) 45 to 65 parts by weight and (B) polyethylene terephthalate resin (B component) 35 to 55 parts by weight for 100 parts by weight of the resin component, (C) a poly 1.0 to 4.0 parts by weight of oxyalkylene bisphenol ether (component C), (D) 0.03 to 0.1 parts by weight of an organic phosphoric acid ester compound represented by the following general formula (1) (component D) and (E) 0 to 20 parts by weight of an inorganic filler (E component), and containing no impact modifier.
[In the formula (1), R represents an optionally substituted alkyl group having 2 to 25 carbon atoms, and n represents 1 or 2. However, when n is 2, the two R's may be different from each other. ] 2. The polycarbonate resin composition according to claim 1, wherein the E component is mica. A molded article obtained by molding the polycarbonate resin composition according to claim 1 or 2. 4. The molded article according to claim 3, which is an automobile exterior part.