JP2002080708A - Frame-retarded aromatic polycarbonate resin composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aromatic polycarbonate resin composition containing an inorganic filler having excellent flame retardancy and mild to the environment. SOLUTION: This flame-retarded aromatic polycarbonate resin composition comprises (A) 95.9-22 wt.% aromatic polycarbonate resin, (B) 3-50 wt.% inorganic filler, (C) 0.1-5 wt.% organic siloxane having an alkoxy group, a vinyl group and a phenyl group, (D) 1-20 wt.% organic phosphorus compound and (E) 0-3 wt.% polytetrafluoroethylene having fibril-forming properties when the total of the components A, B, C, D and E is 100 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an aromatic polycarbonate resin composition containing an inorganic filler having excellent flame retardancy. More specifically, a resin composition containing a solution organic siloxane having an alkoxy group, a vinyl group, and a phenyl group and an organic phosphorus compound in a resin composition containing an aromatic polycarbonate resin and an inorganic filler, The present invention relates to an environmentally friendly aromatic polycarbonate resin composition having excellent flame retardancy, particularly excellent flame retardancy in a thin portion having a thickness of 1.2 mm or less, high rigidity and good impact resistance.

[0002]

2. Description of the Related Art Aromatic polycarbonate resins are known as engineering plastics having excellent mechanical properties such as impact resistance and also excellent flame retardancy and heat resistance. However, an aromatic polycarbonate resin reinforced with an inorganic filler has a problem that although the strength and the rigidity are improved, the flame retardancy and the impact resistance are largely inferior to those of the unreinforced polycarbonate resin composition. Especially in the case of notebook personal computer housings, mobile computer housings, molded products for thin-walled housings such as portable terminal equipment, etc., they have sufficient strength and rigidity, as well as shock resistance and flame resistance. There is a strong demand for an environment-friendly resin composition that is well-balanced.

Various methods have been proposed for improving the flame retardancy of aromatic polycarbonate resins. For example, there is a method of adding an organic halogen compound or an organic halogen compound and antimony trioxide. However, these flame-retardant resin compositions have the drawback of generating harmful halogen-based gases during combustion. Also, a method of blending red phosphorus having a high flame retardant effect (JP-A-48-85642).
And a method of blending microencapsulated red phosphorus (Japanese Unexamined Patent Publication No. 6-116473). There is a disadvantage that harmful phosphine gas is generated. Further, it is known that a silicone resin is blended as a method of imparting flame retardancy without generating harmful gas during combustion.However, in the case of a silicone resin alone, a polycarbonate resin composition reinforced with an inorganic filler is used. Cannot obtain high flame retardancy.
Therefore, a method using a combination of a silicone resin and a metal salt-based flame retardant (Japanese Patent No. 2719486, Japanese Patent Application Laid-Open No. 11-217).
No. 494, JP-A-11-263903). However, these flame-retardant resin compositions have high hygroscopicity of the metal salt-based flame retardant when left in a high-temperature and high-humidity environment for a long time. Has the disadvantage that the mechanical strength, especially impact resistance, of the molded product is significantly reduced by hydrolysis of the polycarbonate resin, and it is difficult to obtain a high flame retardancy compared to the unreinforced polycarbonate resin composition. As for those satisfying the high flame retardancy required for molded articles for thin-walled housings with a polycarbonate resin composition reinforced with an agent, such compositions are not yet satisfactory. Further, a method of using a non-softening silicone resin and an organic phosphorus compound in combination (Japanese Patent Application Laid-Open No. 6-100785) is disclosed, but a molded article for a thin-walled housing made of a polycarbonate resin composition reinforced with an inorganic filler. Such compositions, which satisfy the required high flame retardancy, are not yet satisfactory. For this reason, there is a demand for an excellent resin composition which has an excellent flame-retarding effect with a small amount of a flame retardant and has a small generation of harmful gas during combustion in order to have excellent mechanical properties, especially impact resistance. .

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an aromatic polycarbonate resin composition containing an inorganic filler excellent in flame retardancy, which generates little harmful gas during combustion. The present inventors have conducted intensive studies to achieve the above object, and as a result, in an aromatic polycarbonate resin composition reinforced with an inorganic filler whose flame retardancy is significantly reduced as compared with an unreinforced polycarbonate resin composition. Incorporation of a solution organic siloxane having an alkoxy group, a vinyl group and a phenyl group greatly improves the dispersibility of the inorganic filler, thereby improving flame retardancy and mechanical properties, especially impact resistance. High flame retardancy and excellent impact resistance in the thin part (thickness of 1.2 mm or less)
The present invention has been reached.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an aromatic polycarbonate resin (component (A)) having a total of 100% by weight of components A, B, C, D and E.
9 to 22% by weight, 3 to 50% by weight of an inorganic filler (component B), 0.1 to 5% by weight of an organic siloxane having an alkoxy group, a vinyl group and a phenyl group (component C), and an organic phosphorus compound (component D) A) a flame-retardant aromatic polycarbonate resin composition comprising 1 to 20% by weight and 0 to 3% by weight of polytetrafluoroethylene (component E) having fibril-forming ability;

The aromatic polycarbonate resin used as the component A in the present invention is usually obtained by reacting a dihydric phenol with a carbonate precursor by an interfacial polycondensation method or a melt transesterification method. It is obtained by polymerizing by a solid phase transesterification method or obtained by polymerizing by a ring opening polymerization method of a cyclic carbonate compound.

[0007] Representative examples of the dihydric phenol used herein include hydroquinone, resorcinol, 4,4
4'-dihydroxydiphenyl, bis (4-hydroxyphenyl) methane, bis {(4-hydroxy-3,5-
Dimethyl) phenyl @ methane, 1,1-bis (4-hydroxyphenyl) ethane, 1,1-bis (4-hydroxyphenyl) -1-phenylethane, 2,2-bis (4
-Hydroxyphenyl) propane (commonly known as bisphenol A), 2,2-bis {(4-hydroxy-3-methyl)
Phenyl {propane, 2,2-bis {(4-hydroxy-3,5-dimethyl) phenyl} propane, 2,2-bis {(3-isopropyl-4-hydroxy) phenyl}
Propane, 2,2-bis {(4-hydroxy-3-phenyl) phenyl} propane, 2,2-bis (4-hydroxyphenyl) butane, 2,2-bis (4-hydroxyphenyl) -3-methylbutane, 2,2-bis (4-hydroxyphenyl) -3,3-dimethylbutane, 2,4
-Bis (4-hydroxyphenyl) -2-methylbutane, 2,2-bis (4-hydroxyphenyl) pentane, 2,2-bis (4-hydroxyphenyl) -4-methylpentane, 1,1-bis (4 -Hydroxyphenyl) cyclohexane, 1,1-bis (4-hydroxyphenyl) -4-isopropylcyclohexane, 1,1-
Bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 9,9-bis (4-hydroxyphenyl) fluorene, 9,9-bis {(4-hydroxy-3-methyl) phenyl} fluorene, α , Α'-bis (4-hydroxyphenyl) -o-diisopropylbenzene, α, α'-bis (4-hydroxyphenyl) -m
-Diisopropylbenzene, α, α'-bis (4-hydroxyphenyl) -p-diisopropylbenzene, 1,
3-bis (4-hydroxyphenyl) -5,7-dimethyladamantane, 4,4′-dihydroxydiphenylsulfone, 4,4′-dihydroxydiphenylsulfoxide, 4,4′-dihydroxydiphenylsulfide,
4,4'-dihydroxydiphenyl ketone, 4,4'-
Examples thereof include dihydroxydiphenyl ether and 4,4′-dihydroxydiphenyl ester, and these can be used alone or in combination of two or more.

Among them, bisphenol A, 2,2-bis {(4-hydroxy-3-methyl) phenyl} propane, 2,2-bis (4-hydroxyphenyl) butane,
2,2-bis (4-hydroxyphenyl) -3-methylbutane, 2,2-bis (4-hydroxyphenyl)-
3,3-dimethylbutane, 2,2-bis (4-hydroxyphenyl) -4-methylpentane, 1,1-bis (4
A homopolymer obtained from at least one bisphenol selected from the group consisting of -hydroxyphenyl) -3,3,5-trimethylcyclohexane and α, α'-bis (4-hydroxyphenyl) -m-diisopropylbenzene, or Copolymers are preferred, and furthermore, bisphenol A homopolymer and 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane and bisphenol A, 2,2-bis {(4-hydroxy- Copolymers with 3-methyl) phenyl} propane or α, α′-bis (4-hydroxyphenyl) -m-diisopropylbenzene are preferably used. In particular, a homopolymer of bisphenol A is preferred.

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

In producing the aromatic polycarbonate resin by reacting the dihydric phenol with the carbonate precursor by an interfacial polycondensation method or a melt transesterification method, if necessary, a catalyst, a terminal stopper and a dihydric phenol may be used. May be used. The aromatic polycarbonate resin may be a branched polycarbonate resin obtained by copolymerizing a trifunctional or higher polyfunctional aromatic compound, or a polyester carbonate resin obtained by copolymerizing an aromatic or aliphatic bifunctional carboxylic acid. Alternatively, a mixture of two or more of the obtained aromatic polycarbonate resins may be used.

[0011] Examples of the trifunctional or higher polyfunctional aromatic compound include phloroglucin, phloroglucid, and 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- [1,1-bis (4-hydroxyphenyl) ethyl] benzene} -trisphenol such as α, α-dimethylbenzylphenol, tetra (4-hydroxyphenyl) methane, bis (2,4-dihydroxyphenyl) ) Ketone, 1,4-bis (4,4-dihydroxytriphenylmethyl) benzene, or trimellitic acid, pyromellitic acid, benzophenonetetracarboxylic acid and acid chlorides thereof.
1-tris (4-hydroxyphenyl) ethane, 1,
1,1-Tris (3,5-dimethyl-4-hydroxyphenyl) ethane is preferred, and 1,1,1-tris (4-hydroxyphenyl) ethane is particularly preferred.

When a polyfunctional compound producing such a branched polycarbonate resin is contained, such a ratio is preferably from 0.001 to 1 mol%, more preferably from 0.005 to 0.5 mol%, particularly preferably from the total amount of the aromatic polycarbonate. 0.01
~ 0.3 mol%. In addition, particularly in the case of the melt transesterification method, a branched structure may be generated as a side reaction, and the amount of such a branched structure is also 0.001 to 1 mol%, preferably 0.005 to 5 mol%, of the total amount of the aromatic polycarbonate.
0.5 mol%, particularly preferably 0.01 to 0.3 mol%
Is preferred. The ratio is ¹ H
-It can be calculated by NMR measurement.

The reaction by the interfacial polycondensation method is usually a reaction between dihydric phenol and phosgene, and is carried out in the presence of an acid binder and an organic solvent. As the acid binder, for example, an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide or an amine compound such as pyridine is used. As the organic solvent, for example, halogenated hydrocarbons such as methylene chloride and chlorobenzene are used. Also,
To promote the reaction, for example, triethylamine, tetra-n
Catalysts such as tertiary amines such as -butylammonium bromide and tetra-n-butylphosphonium bromide, quaternary ammonium compounds and quaternary phosphonium compounds can also be used. At that time, the reaction temperature is usually 0 to
40 ° C., reaction time is about 10 minutes to 5 hours, pH during the reaction
Is preferably maintained at 9 or more.

In such a polymerization reaction, a terminal stopper is usually used. Monofunctional phenols can be used as such a terminal stopper. Monofunctional phenols are commonly used as molecular terminators for molecular weight control, and the resulting aromatic polycarbonate resins are not terminated because the ends are blocked by groups based on monofunctional phenols. Excellent in thermal stability. Such a monofunctional phenol is generally a phenol or a lower alkyl-substituted phenol, and may be a monofunctional phenol represented by the following general formula (1).

[0015]

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(Wherein A is a hydrogen atom or a carbon number of 1 to 9)
Wherein r is an integer of 1 to 5, preferably 1 to 3. )

Specific examples of the above monofunctional phenols include phenol, p-tert-butylphenol, p-cumylphenol and isooctylphenol.

Further, other monofunctional phenols include:
Phenols or benzoic acid chlorides having a long-chain alkyl group or aliphatic polyester group as a substituent, or long-chain alkylcarboxylic acid chlorides can also be used. Of these, phenols having a long-chain alkyl group represented by the following general formulas (2) and (3) as a substituent are preferably used.

[0019]

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[0020]

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(Wherein X is -RO-, -R-CO-O
-Or -RO-CO-, wherein R represents a single bond or a divalent aliphatic hydrocarbon group having 1 to 10, preferably 1 to 5 carbon atoms, and n represents an integer of 10 to 50. Show. )

The substituted phenols of the general formula (2) are preferably those having n of 10 to 30, especially 10 to 26, and specific examples thereof include decyl phenol, dodecyl phenol, tetradecyl phenol, hexadecyl phenol, and the like. Octadecylphenol, eicosylphenol, docosylphenol, triacontylphenol and the like can be mentioned.

As the substituted phenols of the general formula (3), a compound in which X is -R-CO-O- and R is a single bond is suitable, and n is 10 to 30, especially 10 to 26.
Are preferred, and specific examples thereof include, for example, decyl hydroxybenzoate, dodecyl hydroxybenzoate,
Examples include tetradecyl hydroxybenzoate, hexadecyl hydroxybenzoate, eicosyl hydroxybenzoate, docosyl hydroxybenzoate and triacontyl hydroxybenzoate.

It is desirable that the terminal terminator is introduced at least at 5 mol%, preferably at least 10 mol%, based on all terminals of the obtained aromatic polycarbonate resin. More preferably, the terminal terminator is introduced in an amount of 80 mol% or more with respect to all terminals, that is, the terminal hydroxyl group (OH group) derived from dihydric phenol is more preferably 20 mol% or less, and particularly preferably. 90 mol% or more of a terminator is introduced to all terminals, that is, O
This is the case when the H group is 10 mol% or less. Further, the terminal stoppers may be used alone or in combination of two or more.

The reaction by the melt transesterification method is usually a transesterification reaction between a dihydric phenol and a carbonate ester, and is produced by mixing the dihydric phenol with the carbonate ester while heating in the presence of an inert gas. It is performed by a method of distilling alcohol or phenol. The reaction temperature varies depending on the boiling point of the alcohol or phenol to be produced, but is usually 120 to 350 ° C.
Range. In the late stage of the reaction, the system was set at 1.33 × 10 ³ -1.
The distillation of alcohol or phenol generated by reducing the pressure to about 3.3 Pa is facilitated. Reaction time is usually 1-4
About an hour.

Examples of the carbonate ester include an optionally substituted ester such as an aryl group having 6 to 10 carbon atoms, an aralkyl group or an alkyl group having 1 to 4 carbon atoms. Specifically, diphenyl carbonate, bis (chlorophenyl) carbonate, dinaphthyl carbonate, bis (diphenyl) carbonate, dimethyl carbonate, diethyl carbonate, dibutyl carbonate and the like can be mentioned, with diphenyl carbonate being preferred.

In order to increase the polymerization rate, a polymerization catalyst is used.
The polymerization catalyst can be used, for example, water
Sodium oxide, potassium hydroxide, dihydric phenol
Alkali metal compounds such as thorium and potassium salts, water
Calcium oxide, barium hydroxide, magnesium hydroxide
Alkaline earth metal compounds such as tetramethylammonium
Hydroxide, tetraethylammonium hydroxide
Nitrogen containing sid, trimethylamine, triethylamine, etc.
Basic compounds, alkali metals and alkaline earth metals
Lucoxides, organic alkali metals and alkaline earth metals
Acid salts, zinc compounds, boron compounds, aluminum
Compounds, silicon compounds, germanium compounds, organic
Tin compounds, lead compounds, osmium compounds, ann
Timon compounds, manganese compounds, titanium compounds, di
Normal esterification reactions such as ruconium compounds,
The catalyst used in the exchange reaction can be used. Touch
The medium may be used alone or in combination of two or more.
May be used. The amount of these polymerization catalysts used is
Preferably 1 × 10 ^-8~
1 × 10^-3Equivalent, more preferably 1 × 10^-7~ 5 × 10
^-FourIt is selected within the range of equivalents.

In the polymerization reaction, in order to reduce the number of phenolic terminal groups, for example, bis (chlorophenyl) carbonate, bis (bromophenyl) carbonate, bis (nitrophenyl) carbonate is used later or after completion of the polycondensation reaction. , Bis (phenylphenyl)
Carbonate, chlorophenylphenyl carbonate,
It is preferable to add a compound such as bromophenylphenyl carbonate, nitrophenylphenyl carbonate, phenylphenyl carbonate, methoxycarbonylphenylphenyl carbonate, and ethoxycarbonylphenylphenyl carbonate. Above all, 2-
Chlorophenyl phenyl carbonate, 2-methoxycarbonyl phenyl phenyl carbonate and 2-ethoxycarbonyl phenyl phenyl carbonate are preferred, and 2-methoxy carbonyl phenyl phenyl carbonate is particularly preferred.

Although the molecular weight of the aromatic polycarbonate resin is not specified, if the molecular weight is less than 10,000, the high-temperature properties and the like will be reduced, and if it exceeds 40,000, the moldability will be reduced. 1
It is preferably from 4,000 to 40,000,
More preferably, the number is from 00 to 30,000, particularly preferably from 14,000 to 23,000. Also,
Two or more aromatic polycarbonate resins may be mixed. The viscosity average molecular weight referred to in the present invention is determined by inserting the specific viscosity (η _SP ) obtained from a solution obtained by dissolving 0.7 g of an aromatic polycarbonate resin in 100 ml of methylene chloride at 20 ° C. into the following equation. η _SP /c=[η]+0.45×[η] ² c (where [η]
Is the intrinsic viscosity) [η] = 1.23 × 10 ⁻⁴ M ^0.83 c = 0.7

Here, the ratio of the component A in the resin composition is 95.9 to 22% by weight when the total of the components A, B, C, D and E is 100% by weight. And preferably 80 to 30% by weight. When the amount is less than 22% by weight, the flame retardancy is insufficient, and when the amount is more than 95.9% by weight, the moldability decreases.

Next, the inorganic filler used as the component B is as follows:
There is no particular limitation as long as it is generally used for reinforcing an aromatic polycarbonate resin. Mineral fibers such as wollastonite, zonotolite, and attapulgite; glass fibers such as glass fiber, milled fiber, and metal-coated glass fiber Types; carbon fibers such as carbon fiber, carbon milled fiber and metal-coated carbon fiber; metal fibers such as stainless steel wire, copper wire, aluminum wire and tungsten wire; alumina fiber, zirconia fiber, silicon carbide fiber, boron fiber, etc. Fillers such as ceramic fibers, aluminum borate whiskers, potassium titanate whiskers, basic magnesium sulfate whiskers, various kinds of whiskers such as needle-like titanium oxide and needle-like calcium carbonate, talc, mica, glass flakes and graphite Plates such as flakes Fillers, glass beads, glass balloons, ceramic balloons, carbon beads, silica particles, titania particles, alumina particles, kaolin, clay,
Examples include various particulate fillers such as calcium carbonate, titanium oxide, cerium oxide, and zinc oxide, and two or more of these can be used in combination.

Among them, preferred inorganic fillers include fibrous fillers such as glass fibers, carbon fibers, metal fibers, and ceramic fibers. Among them, the effects of the present invention are remarkable and preferred. Are glass fibers and carbon fibers, and among them, carbon fibers are particularly preferable. The reason for this is that while carbon fibers can achieve high rigidity and high strength with a small amount, good impact resistance is difficult to achieve, and especially when flame retardancy is required, the properties of carbon fibers are limited. More flame retardants are required, and the impact resistance in such a case is significantly reduced.

As the carbon fiber in the present invention, any of cellulose type, polyacrylonitrile type, pitch type and the like can be used, and a raw material comprising a polymer and a solvent by a methylene type bond of aromatic sulfonic acids or their salts. It is also possible to use a composition obtained by a method of performing spinning without going through an infusibilization step typified by spinning or molding the composition and then carbonizing. Further, those manufactured by a manufacturing method that does not go through a spinning step represented by a vapor phase growth method can also be used.

Further, any of a so-called general-purpose type, a medium elasticity type and a high elasticity type can be used, but a polyacrylonitrile-based high elasticity type is particularly preferable.
The shape is a chopped strand, a roving strand or the like. In addition, for the production method, either melt spinning or solvent spinning can be used,
Further, for solvent spinning, either wet spinning or dry spinning can be used.

The fiber diameter is 0.5 to 20 μm.
m is preferable, and 1 to 10 μm is particularly preferable. If it is less than 0.5 μm, the fibers are easily entangled with each other, and the fiber is severely bent in the step of dispersing the fiber in the aromatic polycarbonate, and the efficiency of rigidity improvement is reduced. The reinforcing efficiency of the steel decreases. These carbon fibers oxidize the surface of the carbon fibers by a method such as gas-phase oxidation in which the fibers are heated in an oxidizing gas, liquid-phase oxidation using a solution of an oxidizing agent, or anodizing the carbon fibers in an electrolytic bath. It is desirable. The carbon fiber is usually cut as a chopped strand by a sizing agent into a fiber length of about 1 to 10 mm with thousands to tens of thousands of fibers as one unit, and these can be used as appropriate.

The carbon-milled fiber is obtained by cutting the carbon fiber and then pulverizing it with a ball mill or the like.
The length is adjusted to less than the length of a normal chopped strand. In such a case, the carbon fibers mentioned above can be used as the base carbon fibers.

The proportion of the component B in the resin composition is preferably 3 to 50% by weight when the total of the components A, B, C, D and E is 100% by weight. Is from 10 to 30% by weight. If it is less than 3% by weight, the strength is insufficient, and if it is more than 50% by weight, the flame retardancy is reduced and molding becomes difficult.

The organosiloxane having an alkoxy group, a vinyl group, and a phenyl group used as the component C in the present invention is in the form of a solution at normal temperature, and the silicon at the terminal of the main chain or side chain of the siloxane bond is a methoxy group or an ethoxy group. , Having an alkoxy group having 1 to 5 carbon atoms such as a propoxy group, and further having a vinyl group at an arbitrary silicon position of a siloxane bond, and two bonds of silicon in the molecule having a phenyl group and an arbitrary ratio. It has been replaced. One or more organic siloxanes may be used. Where C
As the ratio of the components in the resin composition, A component, B component,
When the total of the components C, D and E is 100% by weight, it is 0.1 to 5% by weight, preferably 0.3 to 3% by weight. If it is less than 0.1% by weight, the flame retardancy is insufficient, and if it is more than 5% by weight, the appearance is deteriorated and the mechanical properties are reduced.

The organic phosphorus compound (component D) of the present invention is not particularly limited. Examples of the organic phosphorus compound include phosphine, phosphine oxide, biphosphine, phosphonium salt, phosphinate, phosphoric ester, and phosphorous acid. Acid esters and the like can be mentioned. More specifically, triphenyl phosphate, methyl neopentyl phosphite, pentaerythritol diethyl diphosphite, methyl neopentyl phosphate, phenyl neopentyl phosphate, pentaerythritol diphenyl diphosphate, dicyclopentyl high positive phosphate, dineopentyl hypophosphate Phosphite,
Phenyl pyrocatechol phosphite, ethyl pyrocatechol phosphate, dipyrocatechol hypophosphate and the like can be mentioned.

Here, in particular, 1 represented by the following general formula (4)
Species or two or more phosphoric ester compounds can be mentioned.

[0041]

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(Where X in the above formula is hydroquinone,
Derived from resorcinol, bis (4-hydroxydiphenyl) methane, bisphenol A, dihydroxydiphenyl, dihydroxynaphthalene, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxyphenyl) ketone, bis (4-hydroxyphenyl) sulfide J, k, l, and m are each independently 0 or 1, n is an integer of 0 to 5,
Or 0 in the case of a mixture of n different phosphate esters.
And R ₁ , R ₂ , R ₃ , and R ₄ are each independently phenol, cresol, xylenol, isopropylphenol, butylphenol substituted or unsubstituted with one or more halogen atoms. p-
It is derived from cumylphenol. )

Among them, X in the above formula preferably includes those derived from hydroquinone, resorcinol and bisphenol A, wherein j, k, l and m are each 1 and n is 0-3. Is an integer or an average of 0 to 3 in the case of a blend of n different phosphate esters, wherein R ₁ , R ₂ , R ₃ , and R ₄ are each independently 1
It is derived from phenol, cresol, or xylenol with or without substitution of at least two halogen atoms.

Among such phosphate ester-based flame retardants,
Triphenyl phosphate is used as the monophosphate compound, and resorcinol bis (dixylenyl phosphate) and bisphenol A are used as the condensed phosphate.
Bis (diphenyl phosphate) is most preferably used because it has good flame retardancy and good fluidity during molding.

Further, phosphazene compounds represented by phenoxyphosphazene oligomers and cyclic phenoxyphosphazene oligomers can also be used.

Here, the ratio of the D component in the resin composition is 1 to 20% by weight when the total of the A component, the B component, the C component, the D component and the E component is 100% by weight, Preferably it is 1 to 15% by weight. When the amount is less than 1% by weight, the flame retardancy is insufficient, and when the amount is more than 20% by weight, the mechanical properties are deteriorated.

In the composition of the present invention, polytetrafluoroethylene having a fibril-forming ability can be blended as the E component in order to further improve the flame retardancy.
Polytetrafluoroethylene having a fibril-forming ability is classified into type 3 in the ASTM standard. Further, polytetrafluoroethylene having such a fibril-forming ability has a primary particle diameter of 0.05 to 10 μm.
m is preferable, and the secondary particle diameter is 50 to 700.
μm is preferred. Such a polytetrafluoroethylene has an anti-melt dripping performance at the time of a combustion test of a test piece in a UL standard vertical combustion test, and such a polytetrafluoroethylene having a fibril-forming ability is:
For example, it is commercially available as Teflon 6J from Mitsui-DuPont Fluorochemicals Co., Ltd. or as polyflon from Daikin Chemical Industries, Ltd. and can be easily obtained.

The polytetrafluoroethylene (hereinafter sometimes simply referred to as “PTFE”) may be used in the form of an aqueous dispersion in addition to the usual solid form. Further, PTFE having such fibril-forming ability can use a PTFE mixture of the following forms in order to improve the dispersibility in a resin and to obtain better flame retardancy and mechanical properties.

First, a coagulated mixture of a PTFE dispersion and a dispersion of a vinyl polymer can be given. Specifically, JP-A-60-258263 discloses an average particle size of 0.0
A method is described in which a PTFE dispersion of 5 to 5 μm is mixed with a dispersion of a vinyl polymer, PTFE particles larger than 30 μm are coagulated without purification, and the coagulated product is dried to obtain a PTFE mixture. The use of such mixtures is possible.

Secondly, a mixture obtained by mixing a PTFE dispersion and dried polymer particles can be mentioned. Various types of such polymer particles can be used, and more preferably, polycarbonate resin powder or ABS resin powder is used. It was done. For such a mixture, JP-A-4-272957 discloses a PTFE dispersion and ABS.
A mixture with a resin powder is described, and such a method can be used.

Third, a PTFE mixture obtained by simultaneously removing the respective media from the mixture of the PTFE dispersion and the thermoplastic resin solution can be mentioned. Specifically, the media can be obtained by using a spray drier. The removed mixture can be mentioned, and such a mixture is described in JP-A-08-188653.

Fourth, a PTFE mixture obtained by polymerizing another vinyl monomer in a PTFE dispersion can be mentioned, and such a mixture is described in JP-A-9-9.
Japanese Patent No. 5583 specifically describes a method for obtaining a PTFE mixture by supplying styrene and acrylonitrile into a PTFE latex, and such a mixture can be used.

Fifth, there is a method of mixing the PTFE dispersion and the polymer particle dispersion and then polymerizing the ethylenically unsaturated monomer in the mixed dispersion. And a fine PTFE mixture in terms of achieving both of fine dispersion of PTFE. The details of such a mixture are described in JP-A-11-29679, that is, a particle diameter of 0.05.
PTFE mixture pulverized by coagulation or spray drying after emulsion polymerization of a monomer having an ethylenically unsaturated bond in a dispersion obtained by mixing a PTFE dispersion of about 1.0 μm and a polymer particle dispersion. Are preferred.

Here, the polymer particles include block copolymers composed of polypropylene, polyethylene, polystyrene, HIPS, AS resin, ABS resin, MBS resin, MABS resin, ASA resin, polyalkyl (meth) acrylate, styrene and butadiene. The hydrogenated copolymer, a block copolymer composed of styrene and isoprene, and the hydrogenated copolymer, an acrylonitrile-butadiene copolymer, a random copolymer and a block copolymer of ethylene-propylene, and a copolymer of ethylene-butene Random copolymer and block copolymer, copolymer of ethylene and α-olefin, copolymer of ethylene-unsaturated carboxylic acid ester such as ethylene-butyl acrylate, acrylate-butadiene copolymer, polyorgano Shiroki Rubber and a copolymer obtained by grafting a vinyl-based monomer such as styrene, acrylonitrile, or polyalkyl methacrylate onto such a composite rubber. (Meth) acrylate, polystyrene, AS resin, ABS resin and ASA resin are preferred.

On the other hand, the ethylenically unsaturated monomers include styrene, p-methylstyrene, o-methylstyrene and p-methylstyrene.
-Methoxystyrene, o-methoxystyrene, 2,4-
Styrene-based monomers such as dimethylstyrene and α-methylstyrene; methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, methacrylic acid-2 -Acrylate monomers such as ethylhexyl, dodecyl acrylate, dodecyl methacrylate, cyclohexyl acrylate and cyclohexyl methacrylate; vinyl cyanide monomers such as acrylonitrile and methacrylonitrile; vinyl methyl ether and vinyl ethyl ether Vinyl ether monomers such as vinyl acetate and vinyl butyrate; olefin monomers such as ethylene, propylene and isobutylene; diene monomers such as butadiene, isoprene and dimethylbutadiene. It can be selected from among. These monomers can be used alone or in combination of two or more.

As the PTFE mixture of the fifth embodiment, METABLEN “A3000” from Mitsubishi Rayon Co., Ltd.
(Trade name) is commercially available, easily available, and can be preferably used in the present invention.

The proportion of the component E in the resin composition is preferably 3% by weight or less, when the total of the components A, B, C, D and E is 100% by weight. , More preferably 0.05 to 1.5% by weight, particularly preferably 0.1 to 1.0% by weight. When the content is in the range of 3% by weight, it is possible to obtain a sufficient melting dripping prevention performance.

As the lubricant in the lubricant having at least one functional group selected from the group consisting of a carboxyl group, a carboxylic anhydride group, an epoxy group and an oxazoline group, mineral oil and synthetic oil And higher fatty acid esters, higher fatty acid amides, paraffin wax, polyolefin wax, polyalkylene glycol, fluorinated fatty acid esters, and fluorinated oils such as trifluorochloroethylene and polyhexafluoropropylene glycol.

Examples of the higher fatty acid ester include glycerin fatty acid ester, sorbitan fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, ethylene glycol fatty acid ester, and polyoxyethylene fatty acid ester.

Among the above-mentioned lubricants, polyolefin waxes are preferred. As the polyolefin wax, use of a polyethylene wax and / or a 1-alkene polymer is particularly preferable. As the polyethylene wax, those generally widely used at present can be used, and examples thereof include those obtained by polymerizing ethylene under high temperature and high pressure, those obtained by thermally decomposing polyethylene, and those obtained by separating and purifying a low molecular weight component from a polyethylene polymer. The molecular weight and the degree of branching are not particularly limited, but the molecular weight is preferably 500 to 20,000, more preferably 1,000 to 15,000 in terms of number average molecular weight.

As the functional group, at least one functional group selected from a carboxyl group, a carboxylic acid anhydride group and an epoxy group is more preferable, and at least one functional group selected from a carboxyl group and a carboxylic acid anhydride group is particularly preferable. Certain functional groups are preferred.

As a method of bonding these lubricants with at least one kind of functional group selected from a carboxyl group, a carboxylic anhydride group, an epoxy group and an oxazoline group, the above-mentioned specific functional group and the above lubricant are combined with the lubricant. A method of reacting a compound having a reactive functional group, a method of copolymerizing a compound having the above specific functional group during synthesis of a lubricant, a method of mixing a lubricant, a compound having a functional group and a radical generator under heating Etc., and any method can be used.

Particularly preferred as the F component in the present invention is
It is a polyolefin wax having at least one functional group selected from a carboxyl group and a carboxylic anhydride group. The carboxyl group or the carboxylic acid anhydride group can be contained in the polyolefin wax by various methods. For example, maleic acid or maleic anhydride and polyethylene, 1-
A method of mixing a polymer of an alkene, a polymer such as a copolymer of 1-alkene and ethylene with heating, in the presence or absence of a radical generator, includes a main chain, a side chain or a bonding atom. These functional groups can be introduced along with the cleavage. An even more preferred method is to introduce a functional group by copolymerizing maleic acid, preferably maleic anhydride, when polymerizing or copolymerizing ethylene, propylene, 1-alkene having 4 or more carbon atoms, and the like. is there. Such a method is a more preferable method because unnecessary heat load is not generated and the amount of the functional group can be easily controlled. The amount of the functional group is preferably in the range of 0.1 to 6 meq / g per 1 g of the polyolefin wax.

Here, the proportion of the component F in the resin composition is preferably 0.05 to 5 parts by weight based on 100 parts by weight of the total of the components A, B, C, D and E. And more preferably 0.05 to 3 parts by weight.

Further, in the present invention, the polyorganosiloxane rubber component and the polyalkyl (meth) acrylate rubber component are entangled with each other so that they cannot be separated from each other for the purpose of improving impact resistance as the G component. It is also possible to add a composite rubber-based graft polymer in which one or two or more vinyl monomers are graft-polymerized to a composite rubber that has better impact resistance and can be preferably used. is there. In order to obtain the composite rubber-based graft copolymer used in the present invention, first, various cyclic organosiloxanes having three or more ring members, for example, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and the like. When,
A latex of polyorganosiloxane rubber is prepared by emulsion polymerization using a crosslinking agent and / or a graft crosslinking agent,
Next, an alkyl (meth) acrylate monomer, a crosslinking agent and a graft crosslinking agent are obtained by impregnating a latex of a polyorganosiloxane rubber and polymerizing the latex. Examples of the alkyl (meth) acrylate monomer used here include alkyl acrylates such as methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate and 2-ethylhexyl acrylate, and alkyls such as hexyl methacrylate and 2-ethylhexyl methacrylate. Although methacrylate is mentioned, it is particularly preferable to use n-butyl acrylate.

Examples of the vinyl monomer to be graft-polymerized on the composite rubber include aromatic vinyl compounds such as styrene and α-methylstyrene, vinyl cyanide compounds such as acrylonitrile and methacrylonitrile, methyl methacrylate and 2-ethylhexyl methacrylate. And acrylates such as methyl acrylate, ethyl acrylate and butyl acrylate. These may be used alone or in combination of two or more. Among such composite rubber-based graft copolymers, particularly preferred are those marketed by Mitsubishi Rayon Co., Ltd. under the trade name of Metablen S-2001 or SRK-200.

The proportion of the G component in the resin composition is preferably 1 to 20 parts by weight based on 100 parts by weight of the total of the A component, the B component, the C component, the D component and the E component.
More preferably, it is 1 to 15 parts by weight.

Further, at least one metal salt selected from alkali metal salts and alkaline earth metal salts can be used as the H component of the present invention. As the H component, various metal salts conventionally used for making a polycarbonate resin flame-retardant can be used. In particular, a metal salt of an organic sulfonic acid or a metal salt of a sulfate ester can be used. . These are not only used alone,
It is also possible to use a mixture of two or more. Incidentally, as the alkali metal of the present invention, lithium, sodium,
Potassium, rubidium and cesium are mentioned, and as the alkaline earth metal, beryllium, magnesium, calcium, strontium and barium are mentioned, and lithium, sodium and potassium are particularly preferable.

As the metal salt of the organic sulfonic acid of the present invention,
Examples thereof include alkali metal salts of aliphatic sulfonic acids, alkaline earth metal salts of aliphatic sulfonic acids, alkali metal salts of aromatic sulfonic acids, and alkaline earth metal salts of aromatic sulfonic acids. Preferred examples of such a metal salt of an aliphatic sulfonic acid include an alkali (earth) metal salt of an alkanesulfonic acid,
The alkali (earth) metal sulphonate in which a part of the alkyl group of the alkali (earth) metal alkanesulfonate is substituted with a fluorine atom, and the alkali (earth) metal perfluoroalkanesulfonate may be mentioned. These can be used alone or in combination of two or more. (Here, the notation of an alkali (earth) metal salt is used to mean both an alkali metal salt and an alkaline earth metal salt.) Do).

As such an alkali (earth) metal salt of an alkanesulfonic acid, sodium salt of ethanesulfonic acid is exemplified by an alkali (earth) of perfluoroalkanesulfonic acid.
As the metal salt, potassium perfluorobutanesulfonate can be preferably mentioned.

The monomeric or polymeric alkali (earth) metal salts of aromatic sulfone sulfonates are described in JP-A-52-54746, for example, sodium diphenylsulfon-3-sulfonate, diphenylsulfone Potassium-3-sulfonate, dipotassium diphenylsulfone-3,3'-disulfonate, dipotassium diphenylsulfon-3,4'-disulfonate, and the like can be given.

On the other hand, examples of the alkali (earth) metal salts of sulfates include alkali (earth) metal salts of sulfates of monohydric and / or polyhydric alcohols. Or, as sulfates of polyhydric alcohols, methyl sulfate, ethyl sulfate, lauryl sulfate, hexadecyl sulfate, polyoxyethylene alkyl phenyl ether sulfate, pentaerythritol mono,
Examples thereof include di, tri, tetrasulfate, sulfate of monoglyceride laurate, sulfate of monoglyceride palmitate, and sulfate of monoglyceride stearate. Preferred examples of the alkali (earth) metal salt of these sulfates include alkali (earth) metal salts of lauryl sulfate.

Among the above-mentioned H components, more preferred alkali (earth) metal salts include alkali (earth) metal salts of aromatic sulfonic acids and alkali (earth) metal salts of perfluoroalkanesulfonic acids. Can be mentioned.

Regarding the amount of the H component, the A component, the B component,
The amount is preferably 0.0001 to 0.05 part by weight, more preferably 0.0001 to 0.01 part by weight, based on 100 parts by weight of the resin composition comprising the C, D, and E components.

In the present invention, a char-forming resin can be added for the purpose of further improving the flame retardancy. As a char forming resin, novolak type phenol resin,
Cresol-modified phenolic resin, poly (2,6-dimethyl-1,4-phenylene ether), allylated poly (2,6-dimethyl-1,4-phenylene ether),
2,6-diphenyl polyphenylene ether, polyphenyl, polyether sulfone, polyarylate, polyphenylene sulfide, polysulfone, polyether sulfone, and the like, and one or a combination of two or more selected from these. Can be. Among these, particularly preferred char-forming resins include novolak-type phenol resins, poly (2,6-dimethyl-1,4-phenylene ether), and polyphenylene sulfide.

The flame-retardant polycarbonate resin composition of the present invention is a flame-retardant polycarbonate resin composition comprising A to E components and optionally F to H components. ABS resin, polyethylene terephthalate, polybutylene terephthalate, polyamide, as long as substantially the same characteristics can be maintained.
A mixture of other thermoplastic resins such as acrylic resin and polyarylate can also be used. Further, as long as the object of the present invention is not impaired, a nucleating agent (eg, sodium stearate, ethylene-sodium acrylate copolymer, etc.), a phosphorus-based stabilizer, an antioxidant (eg, a hindered phenol-based) Light stabilizers, colorants, foaming agents, antistatic agents and the like can generally be blended in trace amounts.

The flame-retardant aromatic polycarbonate resin composition of the present invention may be prepared by mixing the above-mentioned components simultaneously or in an arbitrary order in a mixer such as a tumbler, a V-type blender, a Nauter mixer, a Banbury mixer, a kneading roll, and an extruder. To produce a mixture. Preferably, melt-kneading by a twin-screw extruder is preferable, and in that case, it is preferable that the component B is supplied into the other components that are melt-mixed from a second supply port by a side feeder or the like.

The resin composition thus obtained is extruded,
It can be easily molded by a method such as injection molding or compression molding, and can also be applied to blow molding, vacuum molding and the like. In particular, in injection molding and blow molding, it is preferable to use a mold having a heat insulating layer or a mold in which only the surface of the mold cavity is locally heated in advance. Molded products obtained by the above-mentioned various production methods are excellent in both rigidity and impact resistance, and are most suitable for fields such as thin-walled housings. Specific examples include the fields of portable communication devices, notebook computers, automobile internal parts, especially electric vehicle parts. Particularly, it is most suitable as a material in a field where high flame retardancy is required.

[0079]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to examples. The present invention is not limited to this.

[Examples 1 to 11, Comparative Examples 1 to 10] Table 1
And 0.1% by weight of a component obtained by removing the component B and the component corresponding thereto from the component A from the component A shown in Table 2.
(Hereinafter may be abbreviated as TMP) and 0.3% by weight of carbon black # 970 (manufactured by Mitsubishi Chemical Corporation; hereinafter may be abbreviated as CB). 30m diameter after mixing with a mold blender
mφ vent twin screw extruder [Nippon Steel Works TEX-3
[0XSST], the mixture is adjusted to a predetermined ratio using a measuring instrument from the first input port at the rear end, and the fibrous filler is set from the second input port in the middle of the cylinder using a side feeder. I put it in. Under these conditions, the mixture was melt-extruded at a cylinder temperature of 290 ° C. under a vacuum of 0.5 kPa using a vacuum pump to form pellets. However, in the following FR-2, the mixture was heated to 80 ° C., and a predetermined ratio was compounded in an extruder by a fixed-quantity liquid transfer device. The obtained pellets were dried at 100 ° C. for 5 hours with a hot-air circulation dryer, and injection molding machine (Sumitomo Heavy Industries, Ltd. SG-
150U), cylinder temperature 290 ° C, mold temperature 8
An impact test piece was obtained at 0 ° C. The evaluation results are shown in Tables 1 and 2. (A) Notched impact value: Measured according to ASTM D-256 (with Izod notch, thickness 3.2 mm). (B) Flexural modulus: Measured according to ASTM D-790. (C) Flame retardancy: A combustion test was performed with a thickness of 1.2 mm according to UL standard 94V. However, only Example 11 was 1.0 m
m thickness.

[0081]

[Table 1]

[0082]

[Table 2]

The symbols indicating the components shown in Tables 1 and 2 are as follows. (A component) PC-1: aromatic polycarbonate resin (L-1225, manufactured by Teijin Chemicals Limited, viscosity average molecular weight 22,
500) (Component B) CF-1: carbon fiber (Vesfight HTA-C6-N manufactured by Toho Rayon Co., Ltd.) CF-2: carbon fiber (Vesfight HTA-C6-U manufactured by Toho Rayon Co., Ltd.) GF: Glass fiber (ECS-0 manufactured by NEC Corporation)
3T-511) (Component C) C-1: organic siloxane (organic siloxane having an alkoxy group (methoxy group), vinyl group and phenyl group) (X40-9243 manufactured by Shin-Etsu Chemical Co., Ltd.) C-2: organic siloxane (Organic siloxane having alkoxy group (methoxy group), vinyl group and phenyl group) (X40-9228 manufactured by Shin-Etsu Chemical Co., Ltd.) (Other than component C) C-3: Organic siloxane (dimethylsiloxane) (Toray Dow Corning) -SH200 manufactured by Silicone Co., Ltd. C-4: Organosiloxane (silicone powder) (X40-2135 manufactured by Shin-Etsu Chemical Co., Ltd.) (D component) FR-1: Condensed phosphate ester flame retardant (Asahi Denka Kogyo Co., Ltd. ADK STAB FP-500) FR-2: Condensed phosphate ester flame retardant (CR-741, manufactured by Daihachi Chemical Co., Ltd.) FR -3: monophosphate ester flame retardant (triphenyl phosphate) (TPP manufactured by Daihachi Chemical Co., Ltd.) (E component) E-1; polytetrafluoroethylene having PTFE fibril-forming ability (Polyflon manufactured by Daikin Industries, Ltd.) FA-500) (F component) F-1: carboxyl group-modified olefin wax (Diacarna-30 manufactured by Mitsubishi Kasei Co., Ltd.) (G component) G-1: composite rubber-based graft copolymer (Mitsubishi Rayon Co., Ltd.) ) manufactured Metablen S-2001) (H component) sALT: perfluoroalkanesulfonic acid alkali (earth) metal salt C ₄ F ₉ SO ₃ K (Dainippon ink chemical Co., Ltd. Megafac F 114)

As is clear from these tables, Example 1
From the comparison between Comparative Example 1 and Comparative Example 1, high flame retardancy is achieved without the B component, but the flexural modulus is inferior. Example 1 and Comparative Examples 2, 3
According to the comparison, high flame retardancy cannot be achieved without the C component. Further, from Comparative Example 4, if there is no D component,
High flame retardancy cannot be achieved. From Comparative Examples 5 and 6, high flame retardancy cannot be achieved even when silicon other than the C component is contained. Furthermore, the impact resistance is greatly reduced. From Comparative Example 9, high flame retardancy cannot be achieved even when a large amount of a metal salt is used in combination, and the impact resistance also decreases.

[0085]

The composition of the present invention is excellent in flame retardancy in a thin part, and is also excellent in impact resistance and rigidity. It is suitable in a wide range of industrial fields including the body, and the resin composition obtained by the present invention has an outstanding industrial effect.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08K 5/5425 C08K 5/5425 7/06 7/06 7/14 7/14 // (C08L 69/00 (C08L 69/00 27:18) 27:18) (C08L 69/00 (C08L 69/00 23:26) 23:26) (C08L 69/00 (C08L 69/00 51:04) 51:04) F Term (reference) 4F071 AA27 AA31X AA50 AA67X AA77 AA78 AB03 AB28 AD01 AE17 AF14 AF23 AF47 AH12 BA01 BB05 BC07 4J002 BB21Y BD15X BN22Z CG001 DA016 DL006 EV248 EV258 EW047 EW067 EW137 FA046 FD016 G 00

Claims (7)

[Claims] 1. A component, B component, C component, D component and E component
When the total of the components is 100% by weight, 95.9 to 22% by weight of an aromatic polycarbonate resin (Component A), 3 to 50% by weight of an inorganic filler (Component B), an alkoxy group, a vinyl group, and a phenyl group Organic siloxane (C component)
0.1 to 5% by weight, organic phosphorus compound (D component) 1 to 20
A flame-retardant aromatic polycarbonate resin composition comprising 0 to 3% by weight of polytetrafluoroethylene (component E) having a fibril-forming ability. 2. The aromatic polycarbonate resin composition according to claim 1, wherein the inorganic filler of the component B is glass fiber. 3. The aromatic polycarbonate resin composition according to claim 1, wherein the inorganic filler of the component B is a carbon fiber. 4. A polyolefin wax having at least one functional group selected from a carboxyl group and / or a carboxylic anhydride group (component F),
The aromatic polycarbonate resin composition according to claim 1, comprising 0.05 to 5 parts by weight based on 100 parts by weight of the resin composition comprising the B component, the C component, the D component, and the E component. object. 5. A composite rubber having a structure in which a polyorganosiloxane rubber component and a polyalkyl (meth) acrylate rubber component are entangled with each other so that they cannot be separated from each other, and one or more vinyl monomers are contained in the composite rubber. Component A, B
Resin composition 1 comprising component, component C, component D and component E
The aromatic polycarbonate resin composition according to claim 1, comprising 1 to 20 parts by weight with respect to 00 parts by weight. 6. A resin composition comprising at least one metal salt (H component) selected from an alkali metal salt and / or an alkaline earth metal salt (A component), B component, C component, D component and E component. 0.00 parts per 100 parts by weight
The aromatic polycarbonate resin composition according to claim 1, comprising 0.01 to 0.05 parts by weight. 7. A molded article formed from the flame-retardant aromatic polycarbonate resin composition according to any one of claims 1 to 6.