JP4649103B2 - Aromatic polycarbonate resin composition - Google Patents

Description

  The present invention relates to an aromatic polycarbonate resin composition. More specifically, in an aromatic polycarbonate resin composition containing a fluorine-containing organic metal salt compound and an ultraviolet absorber and requiring light resistance, a metal salt with reduced fluoride ions is added as the fluorine-containing organic metal salt. It is related with the aromatic polycarbonate resin composition which improved the light resistance by doing. Furthermore, the present invention is an aromatic polycarbonate resin composition containing a fluorine-containing organic metal salt and an ultraviolet absorber, and a method for producing the aromatic polycarbonate resin composition in which yellowing due to ultraviolet rays is prevented, and the resin composition The present invention relates to a method for preventing yellowing due to ultraviolet rays in an object.

  Aromatic polycarbonate resin has many excellent material properties, so various products are made using simple and highly productive processing methods such as injection molding. -Widely used in the fields of electronic equipment, architecture, and transportation equipment represented by automobiles. In the electrical and electronic equipment field, a certain flame resistance is required for a resin composition in many products. In addition, a material used outdoors or in a state close to a light source often requires light resistance, that is, a characteristic that suppresses yellowing due to ultraviolet rays. Regardless of whether it is a transparent material or an opaque material, in order to improve the light resistance of an aromatic polycarbonate resin material, a method of incorporating an ultraviolet absorber is a very common technique.

  An aromatic polycarbonate resin composition containing a fluorine-containing organic metal salt typified by an alkali metal salt of perfluoroalkylsulfonic acid is known, and such an aromatic polycarbonate resin has flame retardancy and antistatic properties. Etc. are given (refer patent documents 1-3).

  However, the blending of such a fluorine-containing organometallic salt often causes a decrease in light resistance. When the amount of the UV absorber is increased in order to compensate for such a decrease in light resistance, or when a UV absorber having a higher UV absorbing ability is blended, the hue generally deteriorates (often yellowish) In some cases, required properties could not be satisfied. Furthermore, since the effect of improving light resistance with respect to such an increase is rare, other mechanical properties and heat resistance may be deteriorated by a large increase. Therefore, there is a demand for means for suppressing a decrease in light resistance when a fluorine-containing organic metal salt is blended.

Japanese Patent Publication No.54-32456 Japanese Patent Publication No. 60-19335 JP 2002-80707 A

  An object of the present invention is to provide an aromatic polycarbonate resin composition having further improved light resistance in a system in which an ultraviolet absorber and a fluorine-containing organic metal salt flame retardant are used in combination. As a result of intensive studies to achieve the above object, the present inventor contains the compound and the ultraviolet absorber by further reducing the ratio of fluoride ions contained in a trace amount in the fluorine-containing organometallic salt compound. It was found that yellowing due to ultraviolet rays of an aromatic polycarbonate resin can be reduced. This finding is that the ratio of the fluorine-containing organometallic salt compound to the aromatic polycarbonate resin composition is a small ratio of less than 1% by weight, and the ratio of fluoride ions in the compound is also a very small ratio of less than 100 ppm. In view of the fact, that is, considering that the ratio of the fluoride ion to the aromatic polycarbonate resin is extremely small, it is extremely surprising. Based on this finding, the inventors have made further studies and have completed the present invention.

  The present invention comprises (1) 100 parts by weight of an aromatic polycarbonate resin (component A), and a fluorine-containing organometallic salt compound having a fluoride ion content of 0.2 to 20 ppm by weight as measured by ion chromatography ( This is an aromatic polycarbonate resin composition comprising 0.005 to 0.6 parts by weight of component B) and 0.01 to 7 parts by weight of ultraviolet absorber (component C). According to this configuration (1), the above-mentioned problems are solved and good light resistance (suppression of deterioration such as yellowing due to ultraviolet rays) is achieved in an aromatic polycarbonate resin composition containing a fluorine-containing organometallic salt and an ultraviolet absorber. Is done. The reason why the light resistance is improved by using a fluorine-containing organometallic salt in which fluoride ions are reduced to a specific amount or less is unknown, but the following reasons are conceivable. That is, although it is a trace amount, fluoride ions may contribute to the reaction with the carbonate bond in the deterioration due to ultraviolet rays, and accordingly may accelerate the formation of a molecular skeleton with coloring. It is also possible that fluoride ions may interfere with this function due to some interaction with the ultraviolet absorber.

  One of the preferred embodiments of the present invention is (2) the aromatic polycarbonate resin composition having the constitution (1), wherein the component B is an alkali metal perfluoroalkylsulfonic acid salt. According to this configuration (2), an aromatic polycarbonate resin composition that provides flame retardancy and antistatic performance with a small amount based on the alkali metal perfluoroalkylsulfonic acid salt and also has good light resistance is provided. On the other hand, the alkali metal salt of perfluoroalkylsulfonic acid is inevitably mixed with fluoride ions to some extent on the basis of its production method. Has succeeded in further improving the light resistance of the aromatic polycarbonate resin composition containing.

  One preferred embodiment of the present invention is (3) further containing 0.005 to 2 parts by weight of a fatty acid ester compound (D-1 component) as a release agent (D component) per 100 parts by weight of component A. It is an aromatic polycarbonate resin composition of the said structure (1)-(2). The composition comprising the A component to the C component has good transparency particularly in the preferred composition range. Therefore, the blending of the fatty acid ester compound as the release agent is preferable in that good release properties can be achieved while maintaining transparency. According to the configuration (3), an aromatic polycarbonate resin composition that maintains transparency and has good releasability is provided.

  One of preferred embodiments of the present invention is (4) Further, a phosphate compound (E-1 component), a silicone compound (E-2 component), and a bromination as a flame retardant (E component) per 100 parts by weight of the A component In the aromatic polycarbonate resin composition of the above constitutions (1) to (3), comprising 0.01 to 5 parts by weight of at least one compound selected from polycarbonate (including oligomer) (E-3 component) is there.

  The combined use of the flame retardants of E-1 to E-3 and the fluorine-containing organic metal salt imparts good flame retardancy while maintaining the transparency, heat resistance, impact resistance, etc. of the aromatic polycarbonate resin. Therefore, it is a conventionally known flame retardant formulation. Therefore, an ultraviolet absorber is often used in combination. On the other hand, since the resin composition having such a prescription maintains various characteristic balances in its limit, the improvement in light resistance in substantially the same composition has a great technical significance. That is, when these flame retardants are further used in combination with the composition comprising the A component to the C component, they can obtain better light resistance while having the same characteristics as conventional ones. Alternatively, if the light resistance is maintained and the ultraviolet absorber or the like is reduced, a resin composition superior in hue and mechanical properties can be provided. Therefore, according to this structure (4), the aromatic polycarbonate resin composition which has still more favorable light resistance after balancing various characteristics is provided.

  One of the preferred embodiments of the present invention is (5) at least one stabilizer selected from a phosphorus stabilizer (F component) and a hindered phenol stabilizer (G component) per 100 parts by weight of component A. It is an aromatic polycarbonate resin composition of said structure (1)-(4) containing 0.0001-1 weight part. According to this configuration (5), an aromatic polycarbonate resin composition having even better light resistance is provided.

  One of the preferred embodiments of the present invention is (6) a smooth flat plate having a thickness of 2 mm made of the resin composition and having an arithmetic average roughness (Ra) of 0.03 μm, and the haze measured by JIS K7105 is 0.00. It is an aromatic polycarbonate resin composition of said structure (1)-(5) satisfying that it is 3 to 20%. The composition comprising the A component to the C component has good transparency particularly in the preferred composition range. The resin composition of the present invention may be opaque by containing other optional components. However, in general, a product requiring transparency is required to have higher light resistance, and the transparency and hue are severely demanded. Often it is made. Under these strict requirements, the increase in the amount of the UV absorber is often limited to improve the light resistance. Therefore, the effect of the present invention is more exhibited in such a case. According to this configuration (6), the above-described problems are solved, and an aromatic polycarbonate resin composition that is particularly excellent in transparency and hue is provided.

  One of the preferred embodiments of the present invention is (7) a molded article formed from the aromatic polycarbonate resin composition having the constitutions (1) to (6).

  In addition, the present invention provides (8) 0.005 to 0.6 parts by weight of a fluorine-containing organometallic salt compound and 0.01 to 7 parts of an ultraviolet absorber (C component) per 100 parts by weight of the aromatic polycarbonate resin (A component). An aromatic polycarbonate resin composition comprising parts by weight, a method for producing a resin composition with improved yellowing due to ultraviolet rays, wherein the compound has a fluoride ion content measured by ion chromatography. The present invention relates to a method for producing an aromatic polycarbonate resin composition characterized by using a fluorine-containing organometallic salt compound (component B) having a weight ratio of 0.2 to 20 ppm.

  In the aromatic polycarbonate resin composition, when the light resistance is insufficient, a prescription by increasing the amount of ultraviolet absorber or changing the type has been conventionally taken. However, any of these formulations may impair other required properties. On the other hand, according to the present invention, by blending a specific fluorine-containing organic metal salt, the resin composition, which has been insufficient in light resistance with the conventional fluorine-containing organic metal salt, has better light resistance. It becomes possible to grant. That is, the method for producing an aromatic polycarbonate resin composition improved in light resistance by the configuration (8), more specifically yellowing due to ultraviolet rays, provides a novel method different from the conventional method. .

  The present invention also relates to (9) 0.005 to 0.6 parts by weight of a fluorine-containing organometallic salt compound and 0.01 to 7 UV absorber (C component) per 100 parts by weight of an aromatic polycarbonate resin (A component). An aromatic polycarbonate resin composition containing parts by weight, which is a method for improving yellowing due to ultraviolet rays, wherein the content of fluoride ions measured by ion chromatography as the compound is 0.00 by weight. The present invention relates to a method for improving yellowing due to ultraviolet rays of an aromatic polycarbonate resin composition characterized by using a fluorine-containing organometallic salt compound (component B) of 2 to 20 ppm.

  Similar to the constitution (8), according to the constitution (9), an aromatic polycarbonate resin composition containing a conventional fluorine-containing organic metal salt, that is, a fluorine-containing organic metal salt having a fluoride ion content exceeding 20 ppm. However, when the intended light resistance cannot be achieved, the drip prevention effect can be imparted by using the fluorine-containing organometallic salt having a specific fluoride ion content of the present invention. Thus, the present invention provides an unprecedented method of improving light resistance, more specifically, yellowing due to ultraviolet rays, by blending such a specific fluorine-containing organic metal salt.

Hereinafter, the details of the present invention will be described.
(Component A: aromatic polycarbonate resin)
The aromatic polycarbonate resin used as the component A in the present invention is obtained by reacting a dihydric phenol and a carbonate precursor. Examples of the reaction method include an interfacial polymerization 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 the dihydric phenol used here include hydroquinone, resorcinol, 4,4′-biphenol, 1,1-bis (4-hydroxyphenyl) ethane, and 2,2-bis (4-hydroxyphenyl). ) Propane (commonly called bisphenol A), 2,2-bis (4-hydroxy-3-methylphenyl) propane, 2,2-bis (4-hydroxyphenyl) butane, 1,1-bis (4-hydroxyphenyl)- 1-phenylethane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 2,2-bis (4-hydroxyphenyl) Pentane, 4,4 ′-(p-phenylenediisopropylidene) diphenol, 4,4 ′-(m-phenylenediisopropyl Pyridene) diphenol, 1,1-bis (4-hydroxyphenyl) -4-isopropylcyclohexane, bis (4-hydroxyphenyl) oxide, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) sulfoxide, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxyphenyl) ketone, bis (4-hydroxyphenyl) ester, bis (4-hydroxy-3-methylphenyl) sulfide, 9,9-bis (4-hydroxyphenyl) Examples include fluorene and 9,9-bis (4-hydroxy-3-methylphenyl) fluorene. A preferred dihydric phenol is bis (4-hydroxyphenyl) alkane, and bisphenol A is particularly preferred from the viewpoint of impact resistance, and is widely used.

  In the present invention, in addition to the bisphenol A-based polycarbonate, which is a general-purpose polycarbonate, it is possible to use a special polycarbonate produced using other dihydric phenols as the A component.

  For example, as part or all of the dihydric phenol component, 4,4 ′-(m-phenylenediisopropylidene) diphenol (hereinafter sometimes abbreviated as “BPM”), 1,1-bis (4-hydroxy) Phenyl) cyclohexane, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (hereinafter sometimes abbreviated as “Bis-TMC”), 9,9-bis (4-hydroxyphenyl) Polycarbonate (homopolymer or copolymer) using fluorene and 9,9-bis (4-hydroxy-3-methylphenyl) fluorene (hereinafter sometimes abbreviated as “BCF”) has dimensions due to water absorption. It is suitable for applications where the demands for change and shape stability are particularly severe. These dihydric phenols other than BPA are preferably used in an amount of 5 mol% or more, particularly 10 mol% or more of the entire dihydric phenol component constituting the polycarbonate.

In particular, when high rigidity and better hydrolysis resistance are required, it is particularly preferable that the component A constituting the resin composition is a copolymerized polycarbonate of the following (1) to (3). is there.
(1) BPM is 20 to 80 mol% (more preferably 40 to 75 mol%, more preferably 45 to 65 mol%) in 100 mol% of the dihydric phenol component constituting the polycarbonate, and BCF Of 20 to 80 mol% (more preferably 25 to 60 mol%, more preferably 35 to 55 mol%).
(2) BPA is 10 to 95 mol% (more preferably 50 to 90 mol%, more preferably 60 to 85 mol%) in 100 mol% of the dihydric phenol component constituting the polycarbonate, and BCF Is 5 to 90 mol% (more preferably 10 to 50 mol%, more preferably 15 to 40 mol%).
(3) BPM is 20 to 80 mol% (more preferably 40 to 75 mol%, more preferably 45 to 65 mol%) in 100 mol% of the dihydric phenol component constituting the polycarbonate, and Bis -Copolymer polycarbonate in which TMC is 20 to 80 mol% (more preferably 25 to 60 mol%, still more preferably 35 to 55 mol%).

  These special polycarbonates may be used alone or in combination of two or more. Moreover, these can also be mixed and used for the bisphenol A type polycarbonate generally used.

  The production method and characteristics of these special polycarbonates are described in detail in, for example, JP-A-6-172508, JP-A-8-27370, JP-A-2001-55435, and JP-A-2002-117580. ing.

Of the various polycarbonates described above, those having a water absorption and Tg (glass transition temperature) adjusted within the following ranges by adjusting the copolymer composition, etc. have good hydrolysis resistance of the polymer itself, and Since it is remarkably excellent in low warpage after molding, it is particularly suitable in a field where form stability is required.
(I) polycarbonate having a water absorption of 0.05 to 0.15%, preferably 0.06 to 0.13% and Tg of 120 to 180 ° C, or (ii) Tg of 160 to 250 ° C, Polycarbonate which is preferably 170 to 230 ° C. and has a water absorption of 0.10 to 0.30%, preferably 0.13 to 0.30%, more preferably 0.14 to 0.27%.

  Here, the water absorption of the polycarbonate is a value obtained by measuring the moisture content after being immersed in water at 23 ° C. for 24 hours in accordance with ISO 62-1980 using a disc-shaped test piece having a diameter of 45 mm and a thickness of 3.0 mm. is there. Moreover, Tg (glass transition temperature) is a value calculated | required by the differential scanning calorimeter (DSC) measurement based on JISK7121.

  As the carbonate precursor, carbonyl halide, carbonic acid diester, haloformate or the like is used, and specific examples include phosgene, diphenyl carbonate, dihaloformate of dihydric phenol, and the like.

  In producing the aromatic polycarbonate resin by the interfacial polymerization method using the dihydric phenol and the carbonate precursor, a catalyst, a terminal terminator, and an antioxidant for preventing the dihydric phenol from being oxidized as necessary. Etc. may be used. The aromatic polycarbonate resin of the present invention is a branched polycarbonate resin copolymerized with a trifunctional or higher polyfunctional aromatic compound, a polyester copolymerized with an aromatic or aliphatic (including alicyclic) difunctional carboxylic acid. Carbonate resins, copolymerized polycarbonate resins copolymerized with bifunctional alcohols (including alicyclics), and polyester carbonate resins copolymerized with such bifunctional carboxylic acids and difunctional alcohols are included. Moreover, the mixture which mixed 2 or more types of the obtained aromatic polycarbonate resin may be sufficient.

  Since the branched polycarbonate resin can synergistically improve the drip prevention ability of the flame retardant aromatic polycarbonate resin composition of the present invention, its use is preferable. Examples of the trifunctional or higher polyfunctional aromatic compound used in the branched polycarbonate resin include phloroglucin, phloroglucid, or 4,6-dimethyl-2,4,6-tris (4-hydroxydiphenyl) heptene-2, 2 , 4,6-trimethyl-2,4,6-tris (4-hydroxyphenyl) heptane, 1,3,5-tris (4-hydroxyphenyl) benzene, 1,1,1-tris (4-hydroxyphenyl) Ethane, 1,1,1-tris (3,5-dimethyl-4-hydroxyphenyl) ethane, 2,6-bis (2-hydroxy-5-methylbenzyl) -4-methylphenol, 4- {4- [ Trisphenol such as 1,1-bis (4-hydroxyphenyl) ethyl] benzene} -α, α-dimethylbenzylphenol, tetra (4-hydride) Loxyphenyl) methane, bis (2,4-dihydroxyphenyl) ketone, 1,4-bis (4,4-dihydroxytriphenylmethyl) benzene, or trimellitic acid, pyromellitic acid, benzophenonetetracarboxylic acid and their acids Among them, 1,1,1-tris (4-hydroxyphenyl) ethane and 1,1,1-tris (3,5-dimethyl-4-hydroxyphenyl) ethane are preferable. 1-Tris (4-hydroxyphenyl) ethane is preferred.

The ratio of the polyfunctional compound in the branched polycarbonate resin is 0.001 to 1 mol%, preferably 0.005 to 0.9 mol%, more preferably 0.01 to 0.8 mol in the total amount of the aromatic polycarbonate resin. The mol%, particularly preferably 0.05 to 0.4 mol%. In particular, in the case of the melt transesterification method, a branched structure may occur as a side reaction. The amount of the branched structure is also preferably in the above-mentioned range in the total amount of the aromatic polycarbonate resin. Such a branched structure amount can be calculated by ¹ H-NMR measurement.

  The aliphatic bifunctional carboxylic acid is preferably α, ω-dicarboxylic acid. Examples of the aliphatic difunctional carboxylic acid include sebacic acid (decanedioic acid), dodecanedioic acid, tetradecanedioic acid, octadecanedioic acid, icosanedioic acid and other straight-chain saturated aliphatic dicarboxylic acids, and cyclohexanedicarboxylic acid. Preferred are alicyclic dicarboxylic acids such as As the bifunctional alcohol, an alicyclic diol is more preferable, and examples thereof include cyclohexanedimethanol, cyclohexanediol, and tricyclodecane dimethanol.

  Further, a polycarbonate-polyorganosiloxane copolymer obtained by copolymerizing polyorganosiloxane units can also be used.

  The reaction by the interfacial polymerization method is usually a reaction between a dihydric phenol and phosgene, and is reacted in the presence of an acid binder and an organic solvent. As the acid binder, for example, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, pyridine and the like are used.

  As the organic solvent, for example, halogenated hydrocarbons such as methylene chloride and chlorobenzene are used.

  In addition, catalysts such as tertiary amines and quaternary ammonium salts can be used for promoting the reaction, and monofunctional phenols such as phenol, p-tert-butylphenol, p-cumylphenol, etc. as molecular weight regulators. Are preferably used. Furthermore, examples of monofunctional phenols include decylphenol, dodecylphenol, tetradecylphenol, hexadecylphenol, octadecylphenol, eicosylphenol, docosylphenol, and triacontylphenol. These monofunctional phenols having a relatively long chain alkyl group are effective when improvement in fluidity and hydrolysis resistance is required.

  The reaction temperature is usually 0 to 40 ° C., the reaction time is several minutes to 5 hours, and the pH during the reaction is usually preferably maintained at 10 or higher.

  The reaction by the melt transesterification method is usually a transesterification reaction between a dihydric phenol and a carbonic acid diester. The dihydric phenol and the carbonic acid diester are mixed in the presence of an inert gas and reacted at 120 to 350 ° C. under reduced pressure. . The degree of vacuum is changed stepwise, and finally the phenols produced at 133 Pa or less are removed from the system. The reaction time is usually about 1 to 4 hours.

  Examples of the carbonic acid diester include diphenyl carbonate, dinaphthyl carbonate, bis (diphenyl) carbonate, dimethyl carbonate, diethyl carbonate, and dibutyl carbonate. Among them, diphenyl carbonate is preferable.

A polymerization catalyst can be used to increase the polymerization rate. Examples of the polymerization catalyst include alkali metal and alkaline earth metal hydroxides such as sodium hydroxide and potassium hydroxide, boron and aluminum hydroxides, Alkali metal salts, alkaline earth metal salts, quaternary ammonium salts, alkoxides of alkali metals and alkaline earth metals, organic acid salts of alkali metals and alkaline earth metals, zinc compounds, boron compounds, silicon compounds, germanium compounds, Examples thereof include catalysts usually used for esterification and transesterification of organic tin compounds, lead compounds, antimony compounds, manganese compounds, titanium compounds, zirconium compounds and the like. A catalyst may be used independently and may be used in combination of 2 or more types. The amount of these polymerization catalysts used is preferably 1 × 10 ⁻⁸ to 1 × 10 ⁻³ equivalent, more preferably 1 × 10 ^{−7 to} 5 × 10 ⁻⁴ equivalent, relative to 1 mol of dihydric phenol as a raw material. Selected by range.

  In the polymerization reaction, in order to reduce phenolic end groups, for example, 2-chlorophenyl phenyl carbonate, 2-methoxycarbonylphenyl phenyl carbonate, 2-ethoxycarbonylphenyl phenyl carbonate, etc. Compounds can be added.

Further, in the melt transesterification method, it is preferable to use a deactivator that neutralizes the activity of the catalyst. The amount of the deactivator is preferably 0.5 to 50 mol with respect to 1 mol of the remaining catalyst. Further, it is used in a proportion of 0.01 to 500 ppm, more preferably 0.01 to 300 ppm, and particularly preferably 0.01 to 100 ppm with respect to the aromatic polycarbonate resin after polymerization. Preferred examples of the deactivator include phosphonium salts such as tetrabutylphosphonium dodecylbenzenesulfonate and ammonium salts such as tetraethylammonium dodecylbenzyl sulfate.
The details of the reaction formats other than those described above are also well known in books and patent publications.

  In producing the flame retardant aromatic polycarbonate resin composition of the present invention, the viscosity average molecular weight (M) of the aromatic polycarbonate resin is not particularly limited, but is preferably 10,000 to 50,000, more preferably. It is 14,000-30,000, More preferably, it is 14,000-24,000.

  Aromatic polycarbonate resins having a viscosity average molecular weight of less than 10,000 may not provide practically expected impact resistance, etc., and may not have sufficient drip-preventing ability, resulting in poor flame retardancy. Cheap. On the other hand, a resin composition obtained from an aromatic polycarbonate resin having a viscosity average molecular weight exceeding 50,000 is inferior in versatility in that it is inferior in fluidity during injection molding. Moreover, the transparency that is a feature of the present invention may not be fully utilized due to an increase in the molding temperature.

  The aromatic polycarbonate resin may be obtained by mixing those having a viscosity average molecular weight outside the above range. In particular, the aromatic polycarbonate resin having a viscosity average molecular weight exceeding the above range (50,000) exhibits the drip prevention ability of the flame retardant aromatic polycarbonate resin composition of the present invention by improving the entropy elasticity of the resin. Furthermore, it can be improved synergistically. This improvement effect is even better than the branched polycarbonate. As more preferred embodiments, the A component is an aromatic polycarbonate resin having a viscosity average molecular weight of 70,000 to 300,000 (component A-3-1), and the aromatic polycarbonate resin having a viscosity average molecular weight of 10,000 to 30,000. An aromatic polycarbonate resin (A3 component) having a viscosity average molecular weight of 16,000 to 35,000 (hereinafter referred to as “high molecular weight component-containing aromatic polycarbonate resin”). Can also be used.

  In such a high molecular weight component-containing aromatic polycarbonate resin (A3 component), the molecular weight of the A-3-1 component is preferably 70,000 to 200,000, more preferably 80,000 to 200,000, still more preferably 100,000. 000 to 200,000, particularly preferably 100,000 to 160,000. The molecular weight of the A-3-2 component is preferably 10,000 to 25,000, more preferably 11,000 to 24,000, still more preferably 12,000 to 24,000, and particularly preferably 12,000 to 23. , 000.

  The high molecular weight component-containing aromatic polycarbonate resin (A3 component) can be obtained by mixing the A-3-1 component and the A-3-2 component at various ratios and adjusting them so as to satisfy a predetermined molecular weight range. . Preferably, in A100 component 100 weight%, A-3-1 component is 2 to 40 weight%, More preferably, A3-1 component is 3 to 30 weight%, More preferably, A- The 3-1 component is 4 to 20% by weight, and the A-3-1 component is particularly preferably 5 to 20% by weight.

  In addition, as a method for preparing the A-3 component, (1) a method in which the A-3-1 component and the A-3-2 component are independently polymerized and mixed, and (2) JP-A-5-306336. The method of producing an aromatic polycarbonate resin showing a plurality of polymer peaks in a molecular weight distribution chart by GPC method, represented by the method shown in Japanese Patent Publication No. Gazette, in the same system, the aromatic polycarbonate resin of the present invention A- A method of producing so as to satisfy the conditions of one component, and (3) an aromatic polycarbonate resin obtained by such a production method (production method of (2)), a separately produced A-3-1 component and / or Examples thereof include a method of mixing the A-3-2 component.

The viscosity average molecular weight referred to in the present invention is first determined by using an Ostwald viscometer from a solution obtained by dissolving 0.7 g of aromatic polycarbonate in 100 ml of methylene chloride at 20 ° C. with a specific viscosity (η _SP ) calculated by the following formula. ,
Specific viscosity (η _SP ) = (t−t ₀ ) / t ₀
[T ₀ is methylene chloride falling seconds, t is sample solution falling seconds]
The viscosity average molecular weight M is calculated from the determined specific viscosity (η _SP ) by the following formula.
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

Moreover, the calculation method of the said viscosity average molecular weight is applied also to the viscosity average molecular weight measurement of the resin composition of this invention and the molded article shape | molded from this resin composition. That is, in the present invention, these viscosity average molecular weights are obtained by inserting the specific viscosity (η _sp ) obtained at 20 ° C. from a solution obtained by dissolving 0.7 g of a molded product in 100 ml of methylene chloride into the above formula.

(B component: fluorinated organometallic salt)
The component B in the present invention contains a fluoride ion (F ⁻ ) content of 0.2 to 20 ppm, preferably 0.2 to 10 ppm, more preferably 0.2 to 5 ppm as measured by ion chromatography. It is a fluorine organometallic salt compound.

  The fluorine-containing organic metal salt in the present invention refers to a metal salt compound composed of an anion component composed of an organic acid having a fluorine-substituted hydrocarbon group and a cation component composed of a metal ion. As a more preferred specific example, Examples include metal salts of fluorine-substituted organic sulfonic acids, metal salts of fluorine-substituted organic sulfates, and metal salts of fluorine-substituted organic phosphates. Fluorine-containing organic metal salts can be used alone or in combination of two or more. Among them, a metal salt of a fluorine-substituted organic sulfonic acid is preferable, and a metal salt of a sulfonic acid having a perfluoroalkyl group is particularly preferable. Here, the carbon number of the perfluoroalkyl group is preferably in the range of 1-18, more preferably in the range of 1-10, and still more preferably in the range of 1-8.

  The metal constituting the metal salt of the present invention is an alkali metal or an alkaline earth metal. Examples of the alkali metal include lithium, sodium, potassium, rubidium, and cesium. Examples of the alkaline earth metal include beryllium, magnesium, and calcium. Strontium and barium. More preferred is an alkali metal. Accordingly, a preferred B component of the present invention is a perfluoroalkylsulfonic acid alkali metal salt. Among such alkali metals, rubidium and cesium are suitable when transparency requirements are higher, but these are not general-purpose and difficult to purify, resulting in disadvantages in terms of cost. is there. On the other hand, although lithium and sodium are advantageous in terms of cost and flame retardancy, they may be disadvantageous in terms of transparency. In consideration of these, the alkali metal in the perfluoroalkylsulfonic acid alkali metal salt can be properly used, but perfluoroalkylsulfonic acid potassium salt having an excellent balance of properties is most suitable in any respect. Such potassium salts and alkali metal salts of perfluoroalkylsulfonic acid composed of other alkali metals can be used in combination.

  Specific examples of such B component, particularly preferred alkali metal perfluoroalkyl sulfonates include potassium trifluoromethane sulfonate, potassium perfluorobutane sulfonate, potassium perfluorohexane sulfonate, potassium perfluorooctane sulfonate, penta Sodium fluoroethanesulfonate, sodium perfluorobutanesulfonate, sodium perfluorooctanesulfonate, lithium trifluoromethanesulfonate, lithium perfluorobutanesulfonate, lithium perfluoroheptanesulfonate, cesium trifluoromethanesulfonate, perfluorobutanesulfone Cesium acid, cesium perfluorooctane sulfonate, cesium perfluorohexane sulfonate, perfluorobutane sulfonate Rubidium, and perfluorohexane sulfonic acid rubidium, and these may be used in combination of at least one or two. Of these, potassium perfluorobutanesulfonate is particularly preferred.

The fluoride ion content measured by ion chromatography in the present invention is a value measured by the following method. That is, a precisely weighed fluorine-containing organometallic salt sample is dissolved in ultrapure water (for reagents) to prepare a 0.2 wt% aqueous solution. After sufficiently dissolving, the aqueous solution is filtered (for example, using an OnGuard-H cartridge manufactured by DIONEX), and a predetermined amount is extracted from the filtered aqueous solution to obtain a measurement solution. The measurement solution is measured using an ion chromatograph measurement device. For this measurement, for example, an ion chromatograph DX-100 manufactured by DIONEX is used, the column is ASA-SC for anion analysis, the detector is an electric conductivity meter, and the eluent is 1.8 mmol of Na _{2 with} respect to 1 L of pure water. A mixed aqueous solution in which CO ₃ and 1.7 mmol of NaHCO ₃ are dissolved, and the eluent flow rate is 1.5 ml / min. The content of fluoride ions present in the sample can be determined based on the obtained fluoride ion intensity, and the content of fluoride ions in the component B of the present invention is calculated. The concentration of the prepared aqueous solution described here was 0.2% by weight, but can be appropriately changed depending on the type of the fluorine-containing organometallic salt and the amount of fluoride ions. The ratio of fluoride ions in the aromatic polycarbonate resin composition can be obtained by dissolving a certain amount of sample in methylene chloride, adding a certain amount of ultrapure water, mixing and stirring, What is necessary is just to extract a fixed quantity what filtered the obtained water layer with the OnGuard-H cartridge by DIONEX, and use it as a measurement solution.

  The production method of component B of the present invention uses a known production method, a method for reducing the amount of fluoride ions contained in a raw material when producing a fluorine-containing organic metal salt, and a fluorination obtained by reaction. Producing by a method that removes hydrogen and the like by a gas generated during the reaction or heating, and a method of reducing the amount of fluoride ions by using a purification method such as recrystallization and reprecipitation for producing a fluorine-containing organometallic salt. Can do. In particular, since the B component is relatively soluble in water, ion-exchanged water, particularly water having an electric resistance of 18 MΩ · cm or more, that is, an electric conductivity of about 0.55 μS / cm or less, and from room temperature is used. It is preferable to produce by a process of dissolving at high temperature and washing, then cooling and recrystallization.

  Perfluoroalkylsulfonic acid alkali metal salt, which is a preferred component B in the present invention, is usually obtained by using perfluoroalkylsulfonic acid or perfluoroalkylsulfonyl fluoride as a basic compound such as alkali metal carbonate or hydroxide. It is performed by the method of neutralizing with. When perfluoroalkyl sulfonic acid is used, it is often in a liquid state and is difficult to purify. Therefore, it contains a relatively large amount of fluoride ions mixed in the production of the sulfonic acid. On the other hand, when perfluoroalkylsulfonyl fluoride is used, fluoride ions are generated by the neutralization reaction.

  When perfluoroalkylsulfonic acid is used, fluoride ions can be reduced by the method of performing the neutralization reaction disclosed in JP-A-1-268671 in an acidic region having a pH of 3 or less. According to such a method, a perfluoroalkylsulfonic acid alkali metal salt with reduced fluoride ions can be obtained without further purification steps. On the other hand, when perfluoroalkylsulfonyl fluoride is used as a raw material, it is preferable to reduce the fluoride ion to a predetermined amount by recrystallization as described above after the production of the metal salt. Moreover, when using perfluoroalkylsulfonic acid as a raw material, it is preferable to further include a purification step by recrystallization. More specifically, by a method of neutralizing perfluoroalkylsulfonic acid with an alkali metal carbonate or hydroxide, and a method of neutralizing perfluoroalkylsulfonyl fluoride with an alkali metal carbonate or hydroxide. The perfluoroalkylsulfonic acid alkali metal salt produced (preferably by the latter method) is ion-exchanged water (particularly preferably having an electric resistance of 18 MΩ · cm or more) 2 to 10 times the metal salt. 1) to 40 to 90 ° C. (more preferably 60 to 85 ° C.) and dissolved for 0.1 to 3 hours, more preferably 0.5 to 2.5 hours. C., more preferably in the range of 10 to 35.degree. C., and the precipitated crystals are removed by filtration, whereby a perfluoroalkylsulfonic acid alkali which is a preferred B component of the present invention. It is preferable to produce the Shokushio.

  The blending ratio of the B component in the present invention is 0.005 to 0.6 parts by weight, preferably 0.005 to 0.2 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin of the A component. Preferably it is 0.008-0.13 weight part. The more preferable the range, the more excellent the transparency and the better the flame retardancy when flame retardance is required. For example, when the B component is used as an antistatic agent, transparency is often required when the present invention is used.

(C component: UV absorber)
Specific examples of the ultraviolet absorber of the present invention include, for example, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4 in the benzophenone series. -Benzyloxybenzophenone, 2-hydroxy-4-methoxy-5-sulfoxybenzophenone, 2-hydroxy-4-methoxy-5-sulfoxytrihydridolate benzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2, 2 ′, 4,4′-tetrahydroxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxy-5-sodiumsulfoxybenzophenone, bis (5-Benzoyl-4-hydroxy-2- Examples include methoxyphenyl) methane, 2-hydroxy-4-n-dodecyloxybenzophenone, and 2-hydroxy-4-methoxy-2′-carboxybenzophenone.

  Specific examples of the ultraviolet absorber include, for example, 2- (2-hydroxy-5-methylphenyl) benzotriazole and 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole in the benzotriazole series. 2- (2-hydroxy-3,5-dicumylphenyl) phenylbenzotriazole, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole, 2,2′- Methylenebis [4- (1,1,3,3-tetramethylbutyl) -6- (2H-benzotriazol-2-yl) phenol], 2- (2-hydroxy-3,5-di-tert-butylphenyl) ) Benzotriazole, 2- (2-hydroxy-3,5-di-tert-butylphenyl) -5-chlorobenzotriazol 2- (2-hydroxy-3,5-di-tert-amylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-5- tert-butylphenyl) benzotriazole, 2- (2-hydroxy-4-octoxyphenyl) benzotriazole, 2,2'-methylenebis (4-cumyl-6-benzotriazolephenyl), 2,2'-p -Phenylenebis (1,3-benzoxazin-4-one), and 2- [2-hydroxy-3- (3,4,5,6-tetrahydrophthalimidomethyl) -5-methylphenyl] benzotriazole, and 2- (2'-Hydroxy-5-methacryloxyethylphenyl) -2H-benzotriazole and co-polymerized with the monomer 2 such as a copolymer with a possible vinyl monomer and a copolymer of 2- (2′-hydroxy-5-acryloxyethylphenyl) -2H-benzotriazole with a vinyl monomer copolymerizable with the monomer Examples include polymers having a -hydroxyphenyl-2H-benzotriazole skeleton.

  Specific examples of the ultraviolet absorber include 2- (4,6-diphenyl-1,3,5-triazin-2-yl) -5-hexyloxyphenol and 2- (4) in hydroxyphenyltriazine series. , 6-Diphenyl-1,3,5-triazin-2-yl) -5-methyloxyphenol, 2- (4,6-diphenyl-1,3,5-triazin-2-yl) -5-ethyloxy Phenol, 2- (4,6-diphenyl-1,3,5-triazin-2-yl) -5-propyloxyphenol, and 2- (4,6-diphenyl-1,3,5-triazine-2- Yl) -5-butyloxyphenol and the like. Furthermore, the phenyl group of the above exemplary compounds such as 2- (4,6-bis (2,4-dimethylphenyl) -1,3,5-triazin-2-yl) -5-hexyloxyphenol is 2,4-dimethyl. Examples of the compound are phenyl groups.

  As the ultraviolet absorber, specifically, in the cyclic imino ester type, for example, 2,2′-p-phenylenebis (3,1-benzoxazin-4-one), 2,2 ′-(4,4′-diphenylene) ) Bis (3,1-benzoxazin-4-one), 2,2 ′-(2,6-naphthalene) bis (3,1-benzoxazin-4-one) and the like.

  Further, as the ultraviolet absorber, specifically, for cyanoacrylate, for example, 1,3-bis-[(2′-cyano-3 ′, 3′-diphenylacryloyl) oxy] -2,2-bis [(2- Examples include cyano-3,3-diphenylacryloyl) oxy] methyl) propane and 1,3-bis-[(2-cyano-3,3-diphenylacryloyl) oxy] benzene.

  Furthermore, the ultraviolet absorber has a structure of a monomer compound capable of radical polymerization, so that the ultraviolet absorbent monomer and / or the light stable monomer and a single amount of alkyl (meth) acrylate or the like can be obtained. It may be a polymer type ultraviolet absorber copolymerized with a body. Preferred examples of the ultraviolet absorbing monomer include compounds containing a benzotriazole skeleton, a benzophenone skeleton, a triazine skeleton, a cyclic imino ester skeleton, and a cyanoacrylate skeleton in the ester substituent of (meth) acrylic acid ester. The

  Of these, benzotriazoles and hydroxyphenyltriazines are preferred from the viewpoint of ultraviolet absorbing ability, and cyclic iminoesters and cyanoacrylates are preferred from the viewpoint of heat resistance and hue (transparency). You may use the said ultraviolet absorber individually or in mixture of 2 or more types.

  The compounding quantity of a ultraviolet absorber is 0.01-2 weight part with respect to 100 weight part of aromatic polycarbonate resin (A component), Preferably it is 0.03-2 weight part, More preferably, it is 0.02-1 weight part. More preferably, it is 0.05 to 0.5 parts by weight.

(D component: mold release agent)
A release agent can be blended in the aromatic polycarbonate resin composition of the present invention as necessary. Known release agents can be used. For example, saturated fatty acid ester, unsaturated fatty acid ester, polyolefin wax (polyethylene wax, 1-alkene polymer, etc., which may be modified with a functional group-containing compound such as acid modification), silicone compound, fluorine compound (E.g., fluorine oil represented by polyfluoroalkyl ether), paraffin wax, beeswax and the like. The release agent is preferably 0.005 to 2 parts by weight with respect to 100 parts by weight of the aromatic polycarbonate resin (component A).

  Among them, fatty acid ester (C-1 component) is preferable as a release agent. Such fatty acid esters are esters of aliphatic alcohols and aliphatic carboxylic acids. Such an aliphatic alcohol may be a monohydric alcohol or a dihydric or higher polyhydric alcohol. Moreover, as carbon number of this alcohol, it is the range of 3-32, More preferably, it is the range of 5-30. Examples of such monohydric alcohols include dodecanol, tetradecanol, hexadecanol, octadecanol, eicosanol, tetracosanol, seryl alcohol, and triacontanol. Examples of such polyhydric alcohols include pentaerythritol, dipentaerythritol, tripentaerythritol, polyglycerol (triglycerol to hexaglycerol), ditrimethylolpropane, xylitol, sorbitol, and mannitol. In the fatty acid ester of the present invention, a polyhydric alcohol is more preferable.

  On the other hand, the aliphatic carboxylic acid preferably has 3 to 32 carbon atoms, and particularly preferably an aliphatic carboxylic acid having 10 to 22 carbon atoms. Examples of the aliphatic carboxylic acid include decanoic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid (palmitic acid), heptadecanoic acid, octadecanoic acid (stearic acid), nonadecanoic acid, icosanoic acid, And saturated aliphatic carboxylic acids such as docosanoic acid, and unsaturated aliphatic carboxylic acids such as palmitoleic acid, oleic acid, linoleic acid, linolenic acid, eicosenoic acid, eicosapentaenoic acid, and setoleic acid. Among the above, aliphatic carboxylic acids having 14 to 20 carbon atoms are preferable. Of these, saturated aliphatic carboxylic acids are preferred. In particular, stearic acid and palmitic acid are preferred.

  Since the above-mentioned aliphatic carboxylic acids such as stearic acid and palmitic acid are usually produced from natural fats and oils such as animal fats (such as beef tallow and pork fat) and vegetable fats (such as palm oil), these aliphatic carboxylic acids. The acid is usually a mixture containing other carboxylic acid components having different numbers of carbon atoms. Accordingly, aliphatic carboxylic acids, particularly stearic acid and palmitic acid, which are produced from such natural oils and fats and are in the form of a mixture containing other carboxylic acid components are also preferably used in the production of the D-1 component of the present invention.

  The fatty acid ester of the present invention may be either a partial ester or a total ester (full ester). However, partial esters are more preferably full esters because they usually have a high hydroxyl value and are likely to induce decomposition of the resin at high temperatures. The acid value in the component D of the present invention is preferably 20 or less (can take substantially 0). The hydroxyl value of component D is more preferably in the range of 0.1-30. Further, the iodine value is preferably 10 or less (can take substantially 0). These characteristics can be obtained by a method defined in JIS K 0070.

  The amount of component D (preferably component D-1) is preferably 0.005 to 2 parts by weight, more preferably 0.01 to 1 part by weight, still more preferably 0.05 to 0 parts per 100 parts by weight of component A. .5 parts by weight. In such a range, the aromatic polycarbonate resin composition achieves both good releasability and other properties such as flame retardancy, and particularly has good transparency in the D-1 component.

(E component: flame retardant)
In the aromatic polycarbonate resin composition of the present invention, a flame retardant can be blended in addition to the component B as required. Such flame retardants include brominated epoxy resins, brominated polystyrene, brominated polycarbonates (including oligomers), brominated polyacrylates, halogenated flame retardants such as chlorinated polyethylene, monophosphate compounds, phosphate oligomer compounds, phosphonate oligomers. Organophosphorus flame retardants such as compounds, phosphonitrile oligomer compounds, and phosphonic acid amide compounds, alkali (earth) metal sulfonates, borate metal salt flame retardants, and stannic acid other than the component B of the present invention Examples thereof include organic metal salt flame retardants such as metal salt flame retardants, and silicone flame retardants. Among these, as described above, at least one compound selected from a phosphate compound (component E-1), a silicone compound (component E-2), and a brominated polycarbonate (including oligomer) (component E-3) is preferable. And B component of the present invention.

(E-1 component: phosphate compound)
As the phosphate compound of the E-1 component of the present invention, various phosphate compounds known as conventional flame retardants can be used, and more preferably one or more phosphate compounds represented by the following general formula (i). Can be mentioned.

（但し上記式中のＸは、ハイドロキノン、レゾルシノール、ビス（４−ヒドロキシジフェニル）メタン、ビスフェノールＡ、ジヒドロキシジフェニル、ジヒドロキシナフタレン、ビス（４−ヒドロキシフェニル）スルホン、ビス（４−ヒドロキシフェニル）ケトン、ビス（４−ヒドロキシフェニル）サルファイドから誘導されるものが挙げられ、ｎは０〜５の整数であり、またはｎ数の異なるリン酸エステルの混合物の場合は０〜５の平均値であり、Ｒ^１１、Ｒ^１２、Ｒ^１３、およびＲ^１４はそれぞれ独立して１個以上のハロゲン原子を置換したもしくは置換していないフェノール、クレゾール、キシレノール、イソプロピルフェノール、ブチルフェノール、ｐ−クミルフェノールから誘導されるものである。）

(However, X in the above formula is hydroquinone, resorcinol, bis (4-hydroxydiphenyl) methane, bisphenol A, dihydroxydiphenyl, dihydroxynaphthalene, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxyphenyl) ketone, bis And those derived from (4-hydroxyphenyl) sulfide, where n is an integer from 0 to 5, or in the case of a mixture of phosphate esters having different numbers of n, is an average value from 0 to 5, R ¹¹ , R ¹² , R ¹³ , and R ¹⁴ are each independently derived from phenol, cresol, xylenol, isopropylphenol, butylphenol, p-cumylphenol substituted or unsubstituted with one or more halogen atoms .)

  Specific examples of the phosphate compound substituted with a halogen atom include tris (2,4,6-tribromophenyl) phosphate, tris (2,4-dibromophenyl) phosphate, tris (4-bromophenyl) phosphate, and the like. The

  Specific examples of the phosphate compound not substituted with a halogen atom include monophosphate compounds such as triphenyl phosphate and tri (2,6-xylyl) phosphate, and resorcinol bisdi (2,6-xylyl) phosphate). Preferred are phosphate oligomers, phosphate oligomers mainly composed of 4,4-dihydroxydiphenyl bis (diphenyl phosphate), and phosphate ester oligomers mainly composed of bisphenol A bis (diphenyl phosphate). It indicates that a small amount of other components having different degrees of polymerization may be included, and more preferably, the component of n = 1 in the formula (i) is 85% by weight or more, more preferably 89% by weight or more, and still more preferably 90% by weight. % Is contained ).

(E-2 component: silicone compound)
The E-2 component silicone compound of the present invention improves flame retardancy by a chemical reaction during combustion, and various compounds conventionally proposed as flame retardants for aromatic polycarbonate resins can be used. . The silicone compound binds itself during combustion or binds to a component derived from the resin to form a structure, or gives a flame retardant effect to the polycarbonate resin by a reduction reaction during the structure formation. It is considered. Therefore, it is preferable that a group having high activity in such a reaction is contained, and more specifically, a predetermined amount of at least one group selected from an alkoxy group and a hydrogen (ie, Si—H group) is contained. preferable. As a content rate of this group (alkoxy group, Si-H group), the range of 0.1-1.2 mol / 100g is preferable, the range of 0.12-1 mol / 100g is more preferable, 0.15-0. The range of 6 mol / 100 g is more preferable. Such a ratio can be determined by measuring the amount of hydrogen or alcohol generated per unit weight of the silicone compound by the alkali decomposition method. The alkoxy group is preferably an alkoxy group having 1 to 4 carbon atoms, and particularly preferably a methoxy group.

Generally, the structure of a silicone compound is constituted by arbitrarily combining the following four types of siloxane units. That is,
M units : (CH ₃ ) ₃ SiO _1/2 , H (CH ₃ ) ₂ SiO _1/2 , H ₂ (CH ₃ ) SiO _1/2 , (CH ₃ ) ₂ (CH ₂ = CH) SiO _1/2 Monofunctional siloxane units such as (CH ₃ ) ₂ (C ₆ H ₅ ) SiO _1/2 , (CH ₃ ) (C ₆ H ₅ ) (CH ₂ ═CH) SiO _1/2 ,
D unit : (CH ₃ ) ₂ SiO, H (CH ₃ ) SiO, H ₂ SiO, H (C ₆ H ₅ ) SiO, (CH ₃ ) (CH ₂ ═CH) SiO, (C ₆ H ₅ ) ₂ SiO Bifunctional siloxane units such as
T unit : (CH ₃ ) SiO _3/2 , (C ₃ H ₇ ) SiO _3/2 , HSiO _3/2 , (CH ₂ ═CH) SiO _3/2 , (C ₆ H ₅ ) SiO _3/2 etc. A trifunctional siloxane unit of
Q unit : a tetrafunctional siloxane unit represented by SiO ₂ .

Structure of the silicone compound of the D-2 component of the present invention, specifically, _D n as rational _{formula, T p, M m D n} , M m T p, M m Q q, M m D n T p _{, M m D n Q q,} M m T p Q q, M m D n T p Q q, D n T p, D n Q q, include _{D n} T p _{Q q.} Among these, preferable structures of the silicone compound are M _m D _n , M _m T _p , M _m D _n T _p , and M _m D _n Q _q , and more preferable structures are M _m D _n or M _m D _n. T _p .

  Here, the coefficients m, n, p, and q in the above formula are integers of 1 or more that indicate the degree of polymerization of each siloxane unit, and the sum of the coefficients in each formula is the average degree of polymerization of the silicone compound. . This average degree of polymerization is preferably in the range of 3 to 150, more preferably in the range of 3 to 80, still more preferably in the range of 3 to 60, and particularly preferably in the range of 4 to 40. The better the range, the better the flame retardancy. Further, as described later, a silicone compound containing a predetermined amount of an aromatic group is excellent in transparency. When any of m, n, p, and q is a numerical value of 2 or more, the siloxane unit with the coefficient can be two or more types of siloxane units having different hydrogen atoms or organic residues to be bonded. .

  Furthermore, the E-2 component silicone compound may be linear or have a branched structure. The organic residue bonded to the silicon atom is preferably an organic residue having 1 to 30 carbon atoms, more preferably 1 to 20 carbon atoms. Specific examples of such organic residues include alkyl groups such as methyl group, ethyl group, propyl group, butyl group, hexyl group and decyl group, cycloalkyl groups such as cyclohexyl group, and aryl groups such as phenyl group and tolyl group. Groups and aralkyl groups. More preferably, they are a C1-C8 alkyl group, an alkenyl group, or an aryl group. Especially as an alkyl group, C1-C4 alkyl groups, such as a methyl group, an ethyl group, a propyl group, are preferable.

  Furthermore, it is preferable that E-2 component contains an aryl group from the point which can provide the aromatic polycarbonate resin composition excellent in the flame retardance and transparency. More preferably, the ratio (aromatic group amount) of the aromatic group represented by the following general formula (ii) is preferably 10 to 70% by weight (more preferably 15 to 60% by weight).

（式（ｉｉ）中、Ｘはそれぞれ独立にＯＨ基、炭素数１〜２０の一価の有機残基を示す。ｎは０〜５の整数を表わす。さらに式（１）中においてｎが２以上の場合はそれぞれ互いに異なる種類のＸを取ることができる。）

(In formula (ii), each X independently represents an OH group or a monovalent organic residue having 1 to 20 carbon atoms. N represents an integer of 0 to 5. Further, in formula (1), n is 2; In these cases, different types of X can be taken.)

  The E-2 component of the present invention may contain a reactive group in addition to the Si-H group and the alkoxy group. Examples of the reactive group include an amino group, a carboxyl group, an epoxy group, a vinyl group, and a mercapto group. Examples thereof include a group and a methacryloxy group.

  The silicone compound having a Si—H group in the E-2 component of the present invention is preferably exemplified by a silicone compound containing at least one of the structural units represented by the following general formulas (iii) and (iv).

（式（ｉｉｉ）および式（ｉｖ）中、Ｚ^１〜Ｚ^３はそれぞれ独立に水素原子、炭素数１〜２０の一価の有機残基、または下記一般式（ｖ）で示される化合物を示す。α１〜α３はそれぞれ独立に０または１を表わす。ｍ１は０もしくは１以上の整数を表わす。さらに式（ｉｉｉ）中においてｍ１が２以上の場合の繰返し単位はそれぞれ互いに異なる複数の繰返し単位を取ることができる。）

(In formula (iii) and formula (iv), Z ^{1 to} Z ³ each independently represent a hydrogen atom, a monovalent organic residue having 1 to 20 carbon atoms, or a compound represented by the following general formula (v): Α1 to α3 each independently represents 0 or 1. m1 represents 0 or an integer of 1 or more, and the repeating unit in the case where m1 is 2 or more in formula (iii) represents a plurality of different repeating units. Can be taken.)

（式（ｖ）中、Ｚ^４〜Ｚ^８はそれぞれ独立に水素原子、炭素数１〜２０の一価の有機残基を示す。α４〜α８はそれぞれ独立に０または１を表わす。ｍ２は０もしくは１以上の整数を表わす。さらに式（４）中においてｍ２が２以上の場合の繰返し単位はそれぞれ互いに異なる複数の繰返し単位を取ることができる。）

(In formula (v), Z ^{4 to} Z ⁸ each independently represents a hydrogen atom or a monovalent organic residue having 1 to 20 carbon atoms. Α 4 to α 8 each independently represents 0 or 1. m 2 represents 0. Alternatively, it represents an integer of 1 or more, and the repeating unit in the case where m2 is 2 or more in formula (4) can take a plurality of different repeating units.

  In the E-2 component of the present invention, examples of the silicone compound having an alkoxy group include at least one compound selected from the compounds represented by the general formula (vi) and the general formula (vii).

（式（ｖｉ）中、β^１はビニル基、炭素数１〜６のアルキル基、炭素数３〜６のシクロアルキル基、並びに炭素数６〜１２のアリール基およびアラルキル基を示す。γ^１、γ^２、γ^３、γ^４、γ^５、およびγ^６は炭素数１〜６のアルキル基およびシクロアルキル基、並びに炭素数６〜１２のアリール基およびアラルキル基を示し、少なくとも１つの基がアリール基またはアラルキル基である。δ^１、δ^２、およびδ^３は炭素数１〜４のアルコキシ基を示す。）

(In the formula (vi), β ¹ represents a vinyl group, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group or aralkyl group having 6 to 12 carbon atoms. Γ ¹ , γ ² , γ ³ , γ ⁴ , γ ⁵ , and γ ⁶ represent an alkyl group and a cycloalkyl group having 1 to ⁶ carbon atoms, and an aryl group and an aralkyl group having 6 to 12 carbon atoms, and at least one group is aryl. And δ ¹ , δ ² , and δ ³ are each an alkoxy group having 1 to 4 carbon atoms.)

（式（ｖｉｉ）中、β^２およびβ^３はビニル基、炭素数１〜６のアルキル基、炭素数３〜６のシクロアルキル基、並びに炭素数６〜１２のアリール基およびアラルキル基を示す。γ^７、γ^８、γ^９、γ^１０、γ^１１、γ^１２、γ^１３およびγ^１４は炭素数１〜６のアルキル基、、炭素数３〜６のシクロアルキル基、並びに炭素数６〜１２のアリール基およびアラルキル基を示し、少なくとも１つの基がアリール基またはアラルキルである。δ^４、δ^５、δ^６、およびδ^７は炭素数１〜４のアルコキシ基を示す。）

(In formula (vii), β ² and β ³ represent a vinyl group, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group and an aralkyl group having 6 to 12 carbon atoms. γ ⁷ , γ ⁸ , γ ⁹ , γ ¹⁰ , γ ¹¹ , γ ¹² , γ ^13, and γ ¹⁴ are each an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and 6 to 12 carbon atoms. And at least one group is an aryl group or an aralkyl group, and δ ⁴ , δ ⁵ , δ ⁶ , and δ ⁷ represent an alkoxy group having 1 to 4 carbon atoms.)

(E-3 component: brominated polycarbonate)
In the brominated polycarbonate (E-3 component) used in the present invention, the structural unit represented by the following general formula (viii) is at least 60 mol%, preferably at least 80 mol%, particularly preferably all structural units. It is a brominated polycarbonate compound substantially composed of a structural unit represented by the following general formula (viii).

（式（ｖｉｉｉ）中、Ｘは臭素原子、Ｒは炭素数１〜４のアルキレン基、炭素数１〜４のアルキリデン基または−ＳＯ_２−である。）

(In the formula (viii), X is a bromine atom, R is an alkylene group having 1 to 4 carbon atoms, an alkylidene group having 1 to 4 carbon atoms, or —SO ₂ —).

In the formula (viii), R preferably represents a methylene group, an ethylene group, an isopropylidene group, —SO ₂ —, and particularly preferably an isopropylidene group.

  The brominated polycarbonate of component D-3 has few remaining chloroformate group ends, and the amount of terminal chlorine is preferably 0.3 ppm or less, more preferably 0.2 ppm or less. The amount of terminal chlorine is determined by dissolving a sample in methylene chloride, adding 4- (p-nitrobenzyl) pyridine and allowing it to react with terminal chlorine (terminal chloroformate). -3200). When the amount of terminal chlorine is 0.3 ppm or less, the thermal stability of the aromatic polycarbonate resin composition becomes better, and a resin composition excellent in hue and molding processability is provided.

The E-3 component brominated polycarbonate preferably has few remaining hydroxyl groups. More specifically, the amount of terminal hydroxyl groups is preferably 0.0005 mol or less, more preferably 0.0003 mol or less with respect to 1 mol of the structural unit of brominated polycarbonate. The amount of terminal hydroxyl groups can be determined by dissolving a sample in deuterated chloroform and measuring it by ¹ H-NMR method. Such a terminal hydroxyl group amount is preferable because the thermal stability of the resin composition is further improved.

  The specific viscosity of the E-3 component brominated polycarbonate is preferably in the range of 0.015 to 0.1, more preferably in the range of 0.015 to 0.08. The specific viscosity of the brominated polycarbonate is calculated according to the formula for calculating the specific viscosity used in calculating the viscosity average molecular weight of the aromatic polycarbonate resin which is the component A of the present invention.

  The components E-1 to E-3 are each preferably 0.01 to 5 parts by weight, more preferably 0.05 to 3 parts by weight, still more preferably 0. 08-2 parts by weight. By such a suitable composition ratio, an aromatic polycarbonate resin composition having an excellent synergistic effect with the component B and having good flame retardancy is provided.

(Other flame retardants)
As the organic metal salt flame retardant other than the component B of the present invention, a metal salt of an organic sulfonic acid not containing a fluorine atom is suitable. For example, an alkali metal salt of an aliphatic sulfonic acid, an alkaline earth of an aliphatic sulfonic acid Examples thereof include metal salts, alkali metal salts of aromatic sulfonic acids, and alkaline earth metal salts of aromatic sulfonic acids (all of which do not contain a fluorine atom).

  Preferable examples of such aliphatic sulfonic acid metal salts include alkali (earth) metal salts of alkyl sulfonates, and these can be used alone or in combination of two or more (here, The notation of alkali (earth) metal salt is used to include both alkali metal salts and alkaline earth metal salts). Preferred examples of the alkane sulfonic acid used for the alkali (earth) metal salt of the alkyl sulfonate include methane sulfonic acid, ethane sulfonic acid, propane sulfonic acid, butane sulfonic acid, methyl butane sulfonic acid, hexane sulfonic acid, and heptane. Examples thereof include sulfonic acid and octanesulfonic acid, and these can be used alone or in combination of two or more.

  The aromatic sulfonic acid used in the aromatic (earth) metal salt of aromatic sulfonate includes monomeric or polymeric aromatic sulfide sulfonic acid, aromatic carboxylic acid and ester sulfonic acid, monomeric or polymeric sulfonic acid. Aromatic ether sulfonic acid, aromatic sulfonate sulfonic acid, monomeric or polymeric aromatic sulfonic acid, monomeric or polymeric aromatic sulfonic acid, aromatic ketone sulfonic acid, heterocyclic sulfonic acid, Examples include at least one acid selected from the group consisting of sulfonic acids of aromatic sulfoxides and condensates of methylene type bonds of aromatic sulfonic acids, and these are used alone or in combination of two or more. be able to.

  Specific examples of the aromatic (earth) metal salt of an aromatic sulfonate include, for example, disodium diphenyl sulfide-4,4′-disulfonate, dipotassium diphenyl sulfide-4,4′-disulfonate, potassium 5-sulfoisophthalate, Sodium 5-sulfoisophthalate, polysodium polyethylene terephthalate polysulfonate, calcium 1-methoxynaphthalene-4-sulfonate, disodium 4-dodecylphenyl ether disulfonate, polysodium poly (2,6-dimethylphenylene oxide) polysulfonate Poly (1,3-phenylene oxide) polysulfonic acid polysodium, poly (1,4-phenylene oxide) polysulfonic acid polysodium, poly (2,6-diphenylphenylene oxide) polysulfonic acid poly Lithium, poly (2-fluoro-6-butylphenylene oxide) polysulfonate, potassium sulfonate of benzenesulfonate, sodium benzenesulfonate, strontium benzenesulfonate, magnesium benzenesulfonate, dipotassium p-benzenedisulfonate, naphthalene-2 , 6-disulfonic acid dipotassium, biphenyl-3,3'-disulfonic acid calcium, diphenylsulfone-3-sulfonic acid sodium, diphenylsulfone-3-sulfonic acid potassium, diphenylsulfone-3,3'-disulfonic acid dipotassium, diphenylsulfone Α, α, α-trifluoroacetophenone sodium 4-sulfonate, dipotassium benzophenone-3,3′-disulfonate, Nene-2,5-disulfonate, dipotassium thiophene-2,5-disulfonate, calcium thiophene-2,5-disulfonate, sodium benzothiophenesulfonate, potassium diphenylsulfoxide-4-sulfonate, naphthalene Examples thereof include a formalin condensate of sodium sulfonate and a formalin condensate of sodium anthracene sulfonate.

  On the other hand, the alkali (earth) metal salt of sulfate ester may include, in particular, the alkali (earth) metal salt of sulfate ester of monovalent and / or polyhydric alcohols. Alcohol sulfates include methyl sulfate, ethyl sulfate, lauryl sulfate, hexadecyl sulfate, polyoxyethylene alkylphenyl ether sulfate, pentaerythritol mono, di, tri, tetrasulfate, and lauric acid monoglyceride. And sulfuric acid ester of palmitic acid monoglyceride, stearic acid monoglyceride sulfate and the like. The alkali (earth) metal salts of these sulfates are preferably alkali (earth) metal salts of lauryl sulfate.

  Examples of other alkali (earth) metal salts include alkali (earth) metal salts of aromatic sulfonamides such as saccharin, N- (p-tolylsulfonyl) -p-toluenesulfonimide, N Examples include-(N'-benzylaminocarbonyl) sulfanilimide and alkali (earth) metal salts of N- (phenylcarboxyl) sulfanilimide.

  In the combined use with the component B of the present invention, an aromatic (earth) metal salt of an aromatic sulfonate is preferable, and a potassium salt is particularly preferable. When blending such an alkali (earth) sulfonate metal salt, the amount is preferably 0.001 to 1 part by weight, more preferably 0.005 to 0.5 part by weight per 100 parts by weight of component A.

(F component: phosphorus stabilizer)
The aromatic polycarbonate resin composition of the present invention preferably further contains a phosphorus stabilizer. Such phosphorus stabilizers improve thermal stability during production or molding, and improve mechanical properties, hue, and molding stability. Further, since there is a considerable amount of oxidative degradation in ultraviolet degradation, it has an auxiliary effect in suppressing such degradation. Examples of such phosphorus stabilizers include phosphorous acid, phosphoric acid, phosphonous acid, phosphonic acid, and esters thereof.

  Specifically, as the phosphite compound, for example, triphenyl phosphite, tris (nonylphenyl) phosphite, tridecyl phosphite, trioctyl phosphite, trioctadecyl phosphite, didecyl monophenyl phosphite, dioctyl monophenyl Phosphite, diisopropyl monophenyl phosphite, monobutyl diphenyl phosphite, monodecyl diphenyl phosphite, monooctyl diphenyl phosphite, 2,2-methylenebis (4,6-di-tert-butylphenyl) octyl phosphite, tris ( Diethylphenyl) phosphite, tris (di-iso-propylphenyl) phosphite, tris (di-n-butylphenyl) phosphite, tris (2,4-di-tert-butylpheny) ) Phosphite, tris (2,6-di-tert-butylphenyl) phosphite, distearyl pentaerythritol diphosphite, bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, bis (2 , 6-Di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite, bis (2,6-di-tert-butyl-4-ethylphenyl) pentaerythritol diphosphite, phenylbisphenol A pentaerythritol diphosphite Phyto, bis (nonylphenyl) pentaerythritol diphosphite, dicyclohexyl pentaerythritol diphosphite, and the like.

  Further, as other phosphite compounds, those which react with dihydric phenols and have a cyclic structure can be used. For example, 2,2′-methylenebis (4,6-di-tert-butylphenyl) (2,4-di-tert-butylphenyl) phosphite, 2,2′-methylenebis (4,6-di-tert- Butylphenyl) (2-tert-butyl-4-methylphenyl) phosphite, 2,2′-methylenebis (4-methyl-6-tert-butylphenyl) (2-tert-butyl-4-methylphenyl) phosphite 2,2′-ethylidenebis (4-methyl-6-tert-butylphenyl) (2-tert-butyl-4-methylphenyl) phosphite.

  Examples of the phosphate compound include tributyl phosphate, trimethyl phosphate, tricresyl phosphate, triphenyl phosphate, trichlorophenyl phosphate, triethyl phosphate, diphenyl cresyl phosphate, diphenyl monoorthoxenyl phosphate, tributoxyethyl phosphate, dibutyl phosphate, dioctyl phosphate, Examples thereof include diisopropyl phosphate, and triphenyl phosphate and trimethyl phosphate are preferable.

  Examples of the phosphonite compound include tetrakis (2,4-di-tert-butylphenyl) -4,4′-biphenylenediphosphonite, tetrakis (2,4-di-tert-butylphenyl) -4,3′-biphenylenedi. Phosphonite, tetrakis (2,4-di-tert-butylphenyl) -3,3′-biphenylenediphosphonite, tetrakis (2,6-di-tert-butylphenyl) -4,4′-biphenylenediphosphonite Tetrakis (2,6-di-tert-butylphenyl) -4,3′-biphenylene diphosphonite, tetrakis (2,6-di-tert-butylphenyl) -3,3′-biphenylene diphosphonite, bis (2,4-di-tert-butylphenyl) -4-phenyl-phenylphosphonite, bis (2,4-di tert-butylphenyl) -3-phenyl-phenylphosphonite, bis (2,6-di-n-butylphenyl) -3-phenyl-phenylphosphonite, bis (2,6-di-tert-butylphenyl)- 4-phenyl-phenylphosphonite, bis (2,6-di-tert-butylphenyl) -3-phenyl-phenylphosphonite, and the like, and tetrakis (di-tert-butylphenyl) -biphenylenediphosphonite, bis (Di-tert-butylphenyl) -phenyl-phenylphosphonite is preferred, tetrakis (2,4-di-tert-butylphenyl) -biphenylenediphosphonite, bis (2,4-di-tert-butylphenyl)- More preferred is phenyl-phenylphosphonite. Such a phosphonite compound is preferable because it can be used in combination with a phosphite compound having an aryl group in which two or more alkyl groups are substituted.

  Examples of the phosphonate compound include dimethyl benzenephosphonate, diethyl benzenephosphonate, and dipropyl benzenephosphonate.

  The phosphorus stabilizers can be used alone or in combination of two or more. Among the phosphorus stabilizers, phosphite compounds or phosphonite compounds are preferable. In particular, tris (2,4-di-tert-butylphenyl) phosphite, tetrakis (2,4-di-tert-butylphenyl) -4,4′-biphenylenediphosphonite and bis (2,4-di-) tert-Butylphenyl) -phenyl-phenylphosphonite is preferred. A combination of these and a phosphate compound is also a preferred embodiment.

(G component: hindered phenol stabilizer)
The aromatic polycarbonate resin composition of the present invention can further contain a hindered phenol-based stabilizer, and such inclusion is particularly effective in preventing dry heat deterioration. In addition, since the ultraviolet ray deterioration is accompanied by oxidative deterioration, it is effective in suppressing such deterioration. Examples of such hindered phenol stabilizers include α-tocopherol, butylhydroxytoluene, sinapyl alcohol, vitamin E, n-octadecyl-β- (4′-hydroxy-3 ′, 5′-di-tert-butylfel). ) Propionate, 2-tert-butyl-6- (3′-tert-butyl-5′-methyl-2′-hydroxybenzyl) -4-methylphenyl acrylate, 2,6-di-tert-butyl-4- ( N, N-dimethylaminomethyl) phenol, 3,5-di-tert-butyl-4-hydroxybenzylphosphonate diethyl ester, 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 2,2 ′ -Methylenebis (4-ethyl-6-tert-butylphenol), 4,4'-methylenebis (2 , 6-di-tert-butylphenol), 2,2′-methylenebis (4-methyl-6-cyclohexylphenol), 2,2′-dimethylene-bis (6-α-methyl-benzyl-p-cresol) 2, 2′-ethylidene-bis (4,6-di-tert-butylphenol), 2,2′-butylidene-bis (4-methyl-6-tert-butylphenol), 4,4′-butylidenebis (3-methyl-6) -Tert-butylphenol), triethylene glycol-N-bis-3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate, 1,6-hexanediol bis [3- (3,5- Di-tert-butyl-4-hydroxyphenyl) propionate], bis [2-tert-butyl-4-methyl 6- (3-tert- Butyl-5-methyl-2-hydroxybenzyl) phenyl] terephthalate, 3,9-bis {2- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1, -Dimethylethyl} -2,4,8,10-tetraoxaspiro [5,5] undecane, 4,4'-thiobis (6-tert-butyl-m-cresol), 4,4'-thiobis (3- Methyl-6-tert-butylphenol), 2,2′-thiobis (4-methyl-6-tert-butylphenol), bis (3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, 4,4 ′ -Di-thiobis (2,6-di-tert-butylphenol), 4,4'-tri-thiobis (2,6-di-tert-butylphenol), 2,2-thio Ethylenebis- [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 2,4-bis (n-octylthio) -6- (4-hydroxy-3 ′, 5′-di -Tert-butylanilino) -1,3,5-triazine, N, N'-hexamethylenebis- (3,5-di-tert-butyl-4-hydroxyhydrocinnamide), N, N'-bis [3 -(3,5-di-tert-butyl-4-hydroxyphenyl) propionyl] hydrazine, 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1,3,3 5-trimethyl-2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) benzene, tris (3,5-di-tert-butyl-4-hydroxyphenyl) Isocyanurate, tris (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 1,3,5-tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate 1,3,5-tris 2 [3 (3,5-di-tert-butyl-4-hydroxyphenyl) propionyloxy] ethyl isocyanurate and tetrakis [methylene-3- (3 ′, 5′-di- tert-butyl-4-hydroxyphenyl) propionate] methane and the like. All of these are readily available. The said hindered phenolic antioxidant can be used individually or in combination of 2 or more types.

  At least one stabilizer selected from a phosphorus stabilizer (F component) and a hindered phenol stabilizer (G component) is 0.0001 to 1 weight with respect to 100 parts by weight of the aromatic polycarbonate resin (component A). Parts, preferably 0.001 to 0.1 parts by weight, more preferably 0.005 to 0.1 parts by weight. When the amount of the stabilizer is too much less than the above range, it is difficult to obtain a good stabilizing effect. When the amount exceeds the above range, the physical properties of the composition may be lowered.

(Other additives)
(Bluing agent)
The aromatic polycarbonate resin composition of the present invention preferably further comprises 0.05 to 3.0 ppm (weight ratio) of a bluing agent in the resin composition. In the resin composition of the present invention, the use of a bluing agent is very effective for further reducing the yellowness and imparting a natural transparency to the molded product. Here, the bluing agent refers to a colorant that exhibits a blue or purple color by absorbing light of orange or yellow color, and a dye is particularly preferable. By blending the bluing agent, the aromatic polycarbonate resin composition of the present invention achieves a better hue. The important point here is the blending amount of the bluing agent. If the bluing agent is less than 0.05 ppm in the resin composition, the effect of improving the hue may be insufficient. On the other hand, if it exceeds 3.0 ppm, the light transmittance is not suitable. A more preferable blending amount of the bluing agent is in the range of 0.5 to 2.0 ppm in the resin composition. Representative examples of the bluing agent include Macrolex Violet B and Macrolex Blue RR manufactured by Bayer, and Polysynthrene Blue RLS manufactured by Clariant.

(Fluorescent dye)
Since the aromatic polycarbonate resin composition of the present invention has good transparency, it further includes a fluorescent whitening agent to give higher light transmission and natural transparency, By including a fluorescent dye that emits light other than that, it is possible to impart a design effect utilizing the light emission color.

  Examples of fluorescent dyes (including fluorescent brighteners) used in the present invention include coumarin fluorescent dyes, benzopyran fluorescent dyes, perylene fluorescent dyes, anthraquinone fluorescent dyes, thioindigo fluorescent dyes, and xanthene fluorescent dyes. And xanthone-based fluorescent dyes, thioxanthene-based fluorescent dyes, thioxanthone-based fluorescent dyes, thiazine-based fluorescent dyes, and diaminostilbene-based fluorescent dyes. Among these, coumarin fluorescent dyes, benzopyran fluorescent dyes, and perylene fluorescent dyes are preferable because they have good heat resistance and little deterioration during molding of the polycarbonate resin. Among them, a coumarin-based fluorescent dye, that is, a fluorescent dye composed of a coumarin derivative, exhibits favorable characteristics in combination with the B component of the present invention from the viewpoint of maintaining good characteristics even in combination with the C component of the present invention. On the other hand, when such a fluorescent dye is used, a benzotriazole ultraviolet absorber and a cyclic iminoester ultraviolet absorber are preferably used as the C component, and a cyclic iminoester ultraviolet absorber is particularly preferably used. .

  In the above, the fluorescent whitening agent represented by the following formula (ix) is preferred as the fluorescent dye comprising a coumarin derivative.

（但し、上記式中Ｒ_１はアミノ基、アルキル基置換アミノ基、水酸基、および下記式（ｘ）、（ｘｉ）または（ｘｉｉ）のいずれかを示し、Ｒ_２は水素原子またはフルオロアルキル基を示し、Ｒ_３は水素原子、アルキル基、またはアリール基のいずれかを示す。）

(In the above formula, R ₁ represents an amino group, an alkyl group-substituted amino group, a hydroxyl group, and any one of the following formulas (x), (xi) or (xii), and R ₂ represents a hydrogen atom or a fluoroalkyl group. R ₃ represents any one of a hydrogen atom, an alkyl group, and an aryl group.)

Among the above formulas (ix), an embodiment in which R ₁ is a substituent of the formula (xi) is preferable. Further, coumarin derivatives of the following formulas (xiii) and (xiv) are preferred, and formula (xiv) is particularly preferred. Such coumarin derivatives can be used alone or in combination of two or more.

  The compounding amount of the fluorescent dye (including the fluorescent brightening agent) is 0.0001 to 3 parts by weight, preferably 0.0005 to 1 part by weight, more preferably 0.0005 to 100 parts by weight of the polycarbonate resin (component A). To 0.5 parts by weight, more preferably 0.001 to 0.5 parts by weight, and particularly preferably 0.001T to 0.1 parts by weight. Within such a range, better weather resistance and hue, thermal stability and light transmittance are compatible.

(Light diffusing agent and white pigment for light reflection)
Since the aromatic polycarbonate resin composition of the present invention is excellent in transparency, hue and light resistance, the light diffusion function by the light diffusing agent and the light high reflection function by the white pigment are more effectively exhibited. Therefore, the aromatic polycarbonate resin of the present invention provides a resin composition having better characteristics even by blending a light diffusing agent and a white pigment. Examples of the light diffusing agent include polymer fine particles (preferably acrylic crosslinked particles and silicone crosslinked particles having a particle size of several μm), low refractive index inorganic fine particles, and composites thereof. 0.005-20 weight part with respect to a weight part, More preferably, 0.01-10 weight part is preferable. As the white pigment, a titanium dioxide (particularly titanium dioxide treated with an organic surface treatment agent such as silicone) pigment is particularly preferred, and the proportion thereof is 1 to 30 parts by weight, more preferably 2 to 20 parts by weight per 100 parts by weight of component A. Is preferred.

(Anti-dripping agent)
In addition to the aromatic polycarbonate resin composition of the present invention, a flame retardant aid (for example, sodium antimonate, antimony trioxide, etc.), an anti-drip agent (polytetrafluoroethylene having fibril-forming ability, etc.) and the like are separately blended. Can be used in combination with flame retardants.

  Polytetrafluoroethylene (PTFE) having the ability to form fibrils has a very high molecular weight, and exhibits a tendency to bind PTFE to each other by an external action such as shearing force to form a fiber. The molecular weight is 1 million to 10 million, more preferably 2 million to 9 million in the number average molecular weight determined from the standard specific gravity. Such PTFE can be used in solid form or in the form of an aqueous dispersion. In addition, PTFE having such fibril-forming ability can improve the dispersibility in the resin, and it is also possible to use a PTFE mixture in a mixed form with other resins in order to obtain better flame retardancy and mechanical properties. is there.

  Examples of commercially available PTFE having such fibril-forming ability include Teflon (registered trademark) 6J from Mitsui DuPont Fluorochemical Co., Ltd., Polyflon MPA FA500, F-201L from Daikin Chemical Industries, Ltd., and the like. Commercially available aqueous dispersions of PTFE include: Fullon AD-1, AD-936 manufactured by Asahi IC Fluoropolymers Co., Ltd. Fullon D-1, D-2 manufactured by Daikin Industries, Ltd., Mitsui DuPont Fluoro A typical example is Teflon (registered trademark) 30J manufactured by Chemical Co., Ltd.

  As a mixed form of PTFE, (1) a method in which an aqueous dispersion of PTFE and an aqueous dispersion or solution of an organic polymer are mixed and co-precipitated to obtain a co-aggregated mixture (Japanese Patent Application Laid-Open No. 60-258263; (Method described in JP-A-63-154744), (2) A method of mixing an aqueous dispersion of PTFE and dried organic polymer particles (method described in JP-A-4-272957), (3) A method in which an aqueous dispersion of PTFE and an organic polymer particle solution are uniformly mixed, and each medium is simultaneously removed from the mixture (described in JP-A-06-220210, JP-A-08-188653, etc.) And (4) a method of polymerizing monomers forming an organic polymer in an aqueous dispersion of PTFE (a method described in JP-A-9-95583), and (5) A method in which an aqueous dispersion of TFE and an organic polymer dispersion are uniformly mixed, and then a vinyl monomer is further polymerized in the mixed dispersion, and then a mixture is obtained (described in JP-A-11-29679, etc.). Those obtained by (Method) can be used. Examples of commercially available PTFE in a mixed form include “Metablene A3000” (trade name) manufactured by Mitsubishi Rayon Co., Ltd. and “BLENDEX B449” (trade name) manufactured by GE Specialty Chemicals.

  As a ratio of PTFE in the mixed form, 1 to 60% by weight of PTFE is preferable in 100% by weight of the PTFE mixture, and more preferably 5 to 55% by weight. When the ratio of PTFE is within such a range, good dispersibility of PTFE can be achieved.

(Radical generator)
The aromatic polycarbonate resin composition of the present invention can contain a radical generator. Preferred radical generators include 2,5-dimethyl-2,5-di (t-butylperoxy) hexyne-3, organic peroxides such as dicumyl peroxide, 2,3-dimethyl-2,3- Diphenylbutane (Dicumyl) and the like can be mentioned, and these are commercially available under the trade names such as Perhexin 25B, Parkmill D, and NOFMER BC manufactured by NOF Corporation. In particular, those that generate as little radicals as possible at the time of melt kneading and that generate stable radicals to some extent at the time of combustion are preferred, so 2,3-dimethyl-2,3-diphenylbutane (dicumyl) is more preferred as a radical generator. be able to. When flame retardancy is required, the flame retardancy can be further improved by such a radical generator.

(Light stabilizer)
The polycarbonate resin composition of the present invention includes bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, tetrakis. (2,2,6,6-tetramethyl-4-piperidyl) -1,2,3,4-butanetetracarboxylate, tetrakis (1,2,2,6,6-pentamethyl-4-piperidyl) -1 , 2,3,4-butanetetracarboxylate, poly {[6- (1,1,3,3-tetramethylbutyl) amino-1,3,5-triazine-2,4-diyl] [(2, 2,6,6-tetramethylpiperidyl) imino] hexamethylene [(2,2,6,6-tetramethylpiperidyl) imino]}, and polymethylpropyl 3-oxy- [4- (2,2,6, - it may also include tetramethyl) piperidinyl] hindered amine light stabilizer represented by a siloxane.

The above light stabilizers may be used alone or in a mixture of two or more. The amount of the light stabilizer used is preferably 0.0005 to 3 parts by weight, more preferably 0.01 to 2 parts by weight, and 0.02 to 1 part by weight based on 100 parts by weight of the aromatic polycarbonate resin (component A). Further preferred.
That's right.

(Other resins and elastomers)
In the aromatic polycarbonate resin composition of the present invention, other resins and elastomers can be used in a small proportion within a range in which the object of the present invention is not impaired.

  Examples of such other resins include polyester resins such as polyethylene terephthalate and polybutylene terephthalate, polyamide resins, polyimide resins, polyetherimide resins, polyurethane resins, silicone resins, polyphenylene ether resins, polyphenylene sulfide resins, polysulfone resins, polyethylene, and polypropylene. And other resins such as polyolefin resin, polystyrene resin, acrylonitrile / styrene copolymer (AS resin), acrylonitrile / butadiene / styrene copolymer (ABS resin), polymethacrylate resin, phenol resin, and epoxy resin.

  As the elastomer, for example, isobutylene / isoprene rubber, styrene / butadiene rubber, ethylene / propylene rubber, acrylic elastomer, polyester elastomer, polyamide elastomer, MBS (methyl methacrylate / sterene / butadiene) which is a core-shell type elastomer. Examples thereof include rubber and MAS (methyl methacrylate / acrylonitrile / styrene) rubber.

(Filler)
Various kinds of known fillers can be blended in the aromatic polycarbonate resin composition of the present invention as a reinforcing filler. Such fillers include, for example, talc, wollastonite, mica, clay, montmorillonite, smectite, kaolin, calcium carbonate, glass fiber, glass beads, glass balloon, glass milled fiber, glass flake, carbon fiber, carbon flake. , Carbon beads, carbon milled fibers, metal flakes, metal fibers, metal coated glass fibers, metal coated carbon fibers, metal coated glass flakes, silica, ceramic particles, ceramic fibers, ceramic balloons, graphite, and various whiskers (potassium titanate whiskers) , Aluminum borate whisker, basic magnesium sulfate, etc.). These reinforcing fillers may be used alone or in combination of two or more. The filler is preferably in the range of 0.1 to 50 parts by weight per 100 parts by weight of component A.

  In addition, in the aromatic polycarbonate resin composition of the present invention, additives known per se can be blended in a small proportion for imparting various functions to the molded article and improving the characteristics. These additives are used in usual amounts as long as the object of the present invention is not impaired.

  Examples of such additives include sliding agents (for example, PTFE particles), colorants (for example, pigments and dyes such as carbon black and titanium oxide), inorganic phosphors (for example, phosphors having aluminate as a mother crystal), charging Inhibitors, flow modifiers, crystal nucleating agents, inorganic and organic antibacterial agents, photocatalytic antifouling agents (eg fine particle titanium oxide, fine particle zinc oxide), impact modifiers typified by graft rubber, infrared absorbers ( Heat ray absorbent), and photochromic agent.

(Haze value)
The aromatic polycarbonate resin composition of the present invention is preferably a smooth plate having a thickness of 2 mm having an arithmetic average roughness (Ra) of 0.03 μm, and the haze measured by JIS K7105 is 0.00. It satisfies 3 to 20%, more preferably 0.3 to 5%, still more preferably 0.3 to 3%. The haze value is measured using a haze meter. Such a smooth flat plate is obtained by subjecting the pellets to predetermined drying, and then injection-molding the pellets into a cavity constituted by a mold surface having an arithmetic average roughness (Ra) of 0.03 μm. The arithmetic average roughness (Ra) of the mold surface can be measured using a surface roughness meter.

(Manufacture of polycarbonate resin composition)
Arbitrary methods are employ | adopted in order to manufacture the aromatic polycarbonate resin composition of this invention. For example, components A to C, and optionally other components are mixed thoroughly using a premixing means such as a V-type blender, Henschel mixer, mechanochemical apparatus, extrusion mixer, etc. Examples thereof include granulation with a briquetting machine and the like, followed by melt kneading with a melt kneader typified by a vent type biaxial ruder, and pelletization with a device such as a pelletizer.

  As a method for supplying each component to the melt-kneader, (i) A component to C component and other components are each independently supplied to the melt-kneader, and (ii) A component to C component and other components. A method in which a part is premixed and then supplied to the melt-kneader independently of the remaining components, (iii) a method in which the component B is diluted and mixed with water or an organic solvent and supplied to the melt-kneader, and further (iv) Examples include a method in which the diluted mixture is premixed with other components and then supplied to the melt kneader. In addition, when there exists a liquid thing in the component to mix | blend (for example in said (iii) and (iv)), what is called a liquid injection apparatus or a liquid addition apparatus can be used for supply to a melt kneader.

  As the extruder, one having a vent capable of degassing moisture in the raw material and volatile gas generated from the melt-kneaded resin can be preferably used. From the vent, a vacuum pump is preferably installed for efficiently discharging generated moisture and volatile gas to the outside of the extruder. It is also possible to remove a foreign substance from the resin composition by installing a screen for removing the foreign substance mixed in the extrusion raw material in the zone in front of the extruder die. Examples of such a screen include a wire mesh, a screen changer, a sintered metal plate (such as a disk filter), and the like. Examples of the melt kneader include a banbury mixer, a kneading roll, a single screw extruder, a multi-screw extruder having three or more axes, in addition to a twin screw extruder.

  The resin extruded as described above is directly cut into pellets, or after forming strands, the strands are cut with a pelletizer to be pelletized. When it is necessary to reduce the influence of external dust during pelletization, it is preferable to clean the atmosphere around the extruder. Although the shape of the obtained pellet can take common shapes, such as a cylinder, a prism, and a sphere, it is a cylinder more suitably. The diameter of such a cylinder is preferably 1 to 5 mm, more preferably 1.5 to 4 mm, and still more preferably 2 to 3.3 mm. On the other hand, the length of the cylinder is preferably 1 to 30 mm, more preferably 2 to 5 mm, and still more preferably 2.5 to 3.5 mm.

(Molding)
A molded article comprising the aromatic polycarbonate resin composition of the present invention can be usually obtained by injection molding the pellet. In such injection molding, not only ordinary molding methods but also injection compression molding, injection press molding, gas assist injection molding, foam molding (including a method of injecting a supercritical fluid), insert molding, in-mold coating molding, heat insulation Examples thereof include mold molding, rapid heating / cooling mold molding, two-color molding, sandwich molding, and ultra-high speed injection molding. In addition, either a cold runner method or a hot runner method can be selected for molding.

  Moreover, according to this invention, a polycarbonate resin composition can be extrusion-molded and it can also be made into shapes, such as various profile extrusion molded articles, a sheet | seat, and a film. For forming sheets and films, an inflation method, a calendar method, a casting method, or the like can also be used. Furthermore, it can be formed as a heat-shrinkable tube by applying a specific stretching operation. Further, the polycarbonate resin composition of the present invention can be formed into a molded product by rotational molding or blow molding.

(surface treatment)
Further, the molded article of the present invention can be subjected to various surface treatments. As the surface treatment, various surface treatments such as a hard coat, a water / oil repellent coat, a hydrophilic coat, an antistatic coat, an ultraviolet absorption coat, an infrared absorption coat, and metalizing (evaporation) can be performed. Examples of the surface treatment method include liquid deposition, vapor deposition, thermal spraying, and plating. As the vapor deposition method, either a physical vapor deposition method or a chemical vapor deposition method can be used. Examples of physical vapor deposition include vacuum vapor deposition, sputtering, and ion plating. Examples of the chemical vapor deposition (CVD) method include a thermal CVD method, a plasma CVD method, and a photo CVD method.

  The aromatic polycarbonate resin composition of the present invention comprises a fluorine-containing organic metal salt (especially an alkali metal perfluoroalkyl sulfonate) having a reduced fluoride ion content and an ultraviolet absorber in combination. It has good light resistance while having the characteristics exhibited by the fluorine organic metal salt. Furthermore, in the present invention, the light resistance is improved by combining a fluorine-containing organometallic salt with a reduced fluoride ion amount and an ultraviolet absorber into an aromatic polycarbonate resin (an improvement in yellowing due to ultraviolet rays). This is a method for producing an aromatic polycarbonate resin composition. In addition, the present invention is a method for improving the light resistance (improving yellowing due to ultraviolet rays) of an aromatic polycarbonate resin composition containing a fluorine-containing organic metal salt and an ultraviolet absorber, wherein the metal salt is a fluoride. It is a method characterized by using a reduced amount of ions. Thus, there is no conventional technique for improving the light resistance by reducing the amount of fluoride ions in the fluorine-containing organic metal salt. A particularly preferable point is that an aromatic polycarbonate resin composition in which a fluorine-containing organometallic salt has been used conventionally is based on a balance of various properties, and it may be difficult to change components in the resin composition. There were many. As a result, there has been a problem that it is difficult to improve the mechanical properties, transparency, hue, and thermal stability by imparting further excellent light resistance or reducing the ultraviolet absorber. . According to the present invention, the light resistance can be improved by using the same fluorine-containing organic metal salt and ultraviolet absorber as in the prior art, so that this problem can be solved. Therefore, the aromatic polycarbonate resin composition of the present invention is extremely useful for various industrial uses such as the field of OA equipment and the field of electrical and electronic equipment, and the industrial effect exerted by the composition is extremely large.

  The form of the present invention considered to be the best by the present inventor is a collection of the preferable ranges of the above requirements. For example, typical examples are described in the following examples. Of course, the present invention is not limited to these forms.

The present invention will be further described below with reference to examples, but the present invention is not limited thereto. The following items were evaluated.
(1) Material characteristics (i) Light resistance In accordance with the conditions of JIS A 1415, a sunshine weather meter (manufactured by Suga Test Instruments Co., Ltd .: WEL-SUN: HC-B) ), A discharge current of 48 to 52 V, a black panel temperature of 63 ± 3 ° C., a humidity of 50%, 18 minutes of water spraying and 102 minutes of no spraying for a total of 120 minutes for a cycle of 1000 hours, followed by JIS K 7103 The yellowing degree YI based on the above was measured, and the difference ΔYI before and after the treatment was evaluated. The YI value was obtained from the following formula from the following formula using the Z-1001DP manufactured by Nippon Denshoku Co., Ltd.
YI = [100− (1.28X−1.06Z)] / Y
ΔYI = YI after treatment-YI before treatment

[Examples 1-4 and Comparative Examples 1-3]
The resin composition described in Table 1 was prepared as follows. The description will be made according to the symbols in the following table. Each component of the ratio of Table 1 was measured, it mixed uniformly using the tumbler, and this mixture was thrown into the extruder and preparation of the resin composition was performed. As the extruder, a vent type twin screw extruder (Kobe Steel Works KTX-30) having a diameter of 30 mmφ was used. The screw configuration is the first stage kneading zone (consisting of 2 feed kneading discs, 1 feed rotor, 1 return rotor and 1 return kneading disc) before the vent position. Thereafter, a second-stage kneading zone (consisting of a feed rotor × 1 and a return rotor × 1) was provided. Strands were extruded under conditions of cylinder temperature and die temperature of 280 ° C. and vent suction of 3000 Pa, cooled in a water bath, then cut into strands with a pelletizer, and pelletized. The obtained pellets were dried at 120 ° C. for 6 hours with a hot air circulating dryer, and a test piece was molded at an injection molding machine [Toshiba Machine Co., Ltd. IS150EN-5Y] at a cylinder temperature of 280 ° C. and a mold temperature of 60 ° C. did.

The raw materials used in Table 1 are as follows.
(A component)
PC-1: Linear polycarbonate resin (a polycarbonate resin comprising bisphenol A prepared by the phosgene method and p-tert-butylphenol as a terminal terminator. Such a polycarbonate resin is produced without using an amine catalyst and is an aromatic polycarbonate resin. The ratio of the terminal hydroxyl group in the terminal was 10 mol%, and the viscosity average molecular weight was 22,400.

(B component)
B-1: Perfluorobutanesulfonic acid potassium salt having a fluoride ion amount of 1 ppm (production of B-1)
Dai Nippon Ink Co., Ltd. MegaFuck F-114P: 100 parts by weight, ion-exchanged water: 300 parts by weight were charged in a glass flask equipped with a thermometer and a stirrer, heated to 80 ° C., and under nitrogen flow 2 After stirring for an hour, the mixture was cooled to room temperature, and the precipitated crystals were collected by filtration. The crystals were washed with 100 parts by weight of ion-exchanged water, and the wet powder was dried with a hot air dryer at 80 ° C. under a nitrogen atmosphere for 24 hours. It is further washed with methanol and subsequently washed with ion-exchanged water, and then the wet powder is dried with hot air at 80 ° C. for 20 hours. The obtained powder is pulverized using a pulverizing mill and passed through a standard sieve No. 400. The desired product was obtained. The ion-exchanged water is ion-exchanged water having an electric resistance of 18 MΩ · cm or more (that is, electric conductivity of about 0.55 μS / cm or less) obtained through Yamato Scientific Co., Ltd. Auto Pure WQ500 type. The same applies to the case where “ion-exchanged water” is simply described.
B-2: Perfluorobutanesulfonic acid potassium salt having a fluoride ion content of 9 ppm (production of B-2)
Dai Nippon Ink Co., Ltd. MegaFuck F-114P: 100 parts by weight, ion-exchanged water: 300 parts by weight were charged in a glass flask equipped with a thermometer and a stirrer, heated to 80 ° C., and stirred for 2 hours. After continuing, it cooled to room temperature and the crystal | crystallization which precipitated was taken out by filtration. The crystals were washed with 100 parts by weight of ion-exchanged water, and the wet powder was dried in air at 80 ° C. for 20 hours with a hot air dryer. After further washing with ion-exchanged water, the wet powder was dried with hot air at 80 ° C. for 20 hours. The obtained powder was pulverized using a pulverizing mill and passed through a standard sieve No. 400 to obtain the desired product.
(Other than B component)
B-3: Perfluorobutanesulfonic acid potassium salt having a fluoride ion content of 40 ppm (Bayowet C4 manufactured by Bayer)
B-4: Perfluorobutanesulfonic acid potassium salt with 126 ppm fluoride ion (Dainippon Ink Co., Ltd. MegaFuck F-114P)

(C component)
C-1: Benzotriazole UV absorber (Chemisorb 79 manufactured by Chemipro Kasei Co., Ltd.)
C-2: Cyclic imino ester ultraviolet absorber (2,2′-p-phenylenebis (3,1-benzoxazin-4-one), manufactured by Takemoto Yushi Co., Ltd .: CEi-P)
(D-1 component)
VPG: Fatty acid ester mainly composed of pentaerythritol tetrastearate (Roxyol VPG861 manufactured by Cognis Japan Co., Ltd.)
EW: Fatty acid ester containing pentaerythritol tetrastearate as a main component (Rikastar EW-400 manufactured by Riken Vitamin Co., Ltd.)

(Other ingredients)
(E-1 component)
FG15: Tris (2,4,6-tribromophenyl) phosphate (Fireguard FG-1500 manufactured by Teijin Chemicals Ltd.)
(F component)
EPQ: Phosphorus stabilizer mainly composed of phosphonite (Sandstab P-EPQ manufactured by Clariant Japan)
(G component)
IRGX: hindered phenol antioxidant (Irganox 1076 manufactured by Ciba Specialty Chemicals)
(Other)
PSR: Coumarin fluorescent whitening agent (manufactured by Hakkol Chemical Co., Ltd .: Hakkor PSR)
KSS: Alkali metal sulfonic acid alkali metal salt mainly composed of potassium diphenylsulfone sulfonate (KSS manufactured by UCB Japan)
BVB: Brewing agent (manufactured by Bayer: Macrolex Violet B)

  From the comparison of the Examples and Comparative Examples in Table 1, it can be seen that the aromatic polycarbonate resin composition of the present invention is excellent in light resistance.

  As is clear from the above, the aromatic polycarbonate resin composition of the present invention is characterized in that a fluorine-containing organometallic salt with a reduced fluoride ion amount and an ultraviolet absorber are used in combination, and the conventional fluoride ion amount is increased. Compared with the case of using the fluorine-containing organic metal salt contained, it is excellent in light resistance and characteristics based on the fluorine-containing organic metal salt. That is, for example, when a fluorine-containing organic metal salt is blended as a flame retardant, an aromatic polycarbonate resin composition having excellent light resistance and flame retardancy is provided. When blended as an antistatic agent, light resistance and An aromatic polycarbonate resin composition having excellent antistatic properties is provided. Of course, in any case, it is natural that the effects other than the purpose are exhibited accordingly. Moreover, the resin composition of the present invention is basically excellent in transparency.

  Therefore, the resin composition of the present invention is suitable for various outdoor applications or applications where transparency is required, specifically for power meter covers, lamp covers, Examples include lenses (for example, outdoor lights, signal lights, headlamps, indoor lights, etc.), display covers and lenses, nameplates, etc. Covers that contain a light diffusing agent and diffuser plates for display devices are also suitable. Is exemplified. A light reflector obtained by blending a white pigment is also a suitable application. Therefore, it is extremely useful for various industrial uses such as the OA equipment field and the electric / electronic equipment field, and the industrial effects exerted thereby are extremely great.

Claims (8)

Perfluorobutanesulfonic acid potassium salt (component B) 0.005 having 100 parts by weight of aromatic polycarbonate resin (component A) and a fluoride ion content measured by ion chromatography of 0.2 to 20 ppm by weight An aromatic polycarbonate resin composition comprising -0.6 parts by weight and 0.01 to 7 parts by weight of an ultraviolet absorber (component C). Furthermore Component A per 100 parts by weight release agent component (D) as the fatty acid ester compound (D-1 component) 0.005 parts by weight of the aromatic polycarbonate resin composition of claim 1 which is formed by containing. Furthermore, per 100 parts by weight of component A, the flame retardant (component E) is selected from a phosphate compound (component E-1), a silicone compound (component E-2), and a brominated polycarbonate (including oligomer) (component E-3). The aromatic polycarbonate resin composition according to claim 1, comprising 0.01 to 5 parts by weight of at least one kind of compound. Further, 0.0001 to 1 part by weight of at least one stabilizer selected from a phosphorus stabilizer (F component) and a hindered phenol stabilizer (G component) is contained per 100 parts by weight of component A. The aromatic polycarbonate resin composition according to any one of claims 1 to 3 . A smooth flat plate having a thickness of 2 mm and comprising an arithmetic mean roughness (Ra) of 0.03 μm made of the resin composition, satisfies a haze measured by JIS K7105 of 0.3 to 20%. The aromatic polycarbonate resin composition according to claim 4 . The molded article formed from the aromatic polycarbonate resin composition of any one of the said Claims 1-5 . Fragrance containing 0.005 to 0.6 parts by weight of a fluorine-containing organometallic salt compound and 0.01 to 7 parts by weight of an ultraviolet absorber (component C) per 100 parts by weight of an aromatic polycarbonate resin (component A) A method for producing a resin composition in which yellowing due to ultraviolet rays is improved in an aromatic polycarbonate resin composition, wherein the content of fluoride ions measured by ion chromatography as the compound is 0.2 to 20 ppm by weight A method for producing an aromatic polycarbonate resin composition comprising using perfluorobutanesulfonic acid potassium salt (component B). Fragrance containing 0.005 to 0.6 parts by weight of a fluorine-containing organometallic salt compound and 0.01 to 7 parts by weight of an ultraviolet absorber (component C) per 100 parts by weight of an aromatic polycarbonate resin (component A) Perfluorobutane having a fluoride ion content of 0.2 to 20 ppm by weight as a compound measured by ion chromatography as a compound in the polycarbonate polycarbonate resin composition A method for improving yellowing of an aromatic polycarbonate resin composition by ultraviolet rays, characterized by using a sulfonic acid potassium salt (component B).