TWI276662B - Polycarbonate resin composition - Google Patents

Abstract

This invention provides a polycarbonate resin composition comprising a polycarbonate resin (A), a high impact polystyrene resin (B), and an unsaturated dicarboxylic anhydride copolymer (C); wherein the unsaturated dicarboxylic anhydride copolymer (C) is copolymerized by unsaturated dicarboxylic anhydride monomer and styrene monomer, in which solution viscosity is below 1.9 cps and the content of unsaturated dicarboxylic anhydride monomer is 10-60 wt.%. The above-mentioned composition can improve the properties of fluidity, impact assistance strength and extension for the resin composition.

Description

1276662 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a polycarbon_fine fat composition which is composed of vinegar vinegar, impact polystyrene resin and unsaturated bis-linal anhydride. The composition of the copolymer improves the fluidity, degree and elongation characteristics of the resin composition. [Prior Art] Polycarbonate Mm has the advantages of high resistance and good impact resistance. • Most of the inspections are for automotive parts, household appliances, 〇A, and parts. In recent years, polycarbonate S is a resin. As processing conditions become more stringent, for example, thin meat processing or a reduction in cycle time is required. Therefore, polycarbonate resins must find better processing characteristics as a countermeasure. Μ 先前 In the prior art of improving the fluidity of the molding process of the polycarbonate resin, the polycarbonate resin and the acrylonitrile-diene-based styrene resin (hereinafter referred to as ABS resin) or (sulfenyl) are used. Acrylate type one or two women's system - benzene 'B • olefinic resin (hereinafter referred to as MBS resin) or blended with impact-resistant polystyrene resin (hereinafter referred to as HIPS resin) 'selective blending ABS resin or MBS resin, although The characteristics of the polycarbonate impact resin can be improved, but the molding process and the improvement of the kinetic properties are not sufficient. When the HIPS resin is blended, the fluidity of the molding process of the S carbonate resin can be changed. However, since the compatibility between the polycarbonate resin and the HIPS resin is not good, the dispersibility of the blended product is not good, and the molded article is peeled off, and the elongation of the sheet is deteriorated, especially in the case of a thin meat molded product. In practice, the impact strength is deteriorated. If it is combined with the use of the fuel, the problem is more serious, so the scope of use in the industry is narrow. ' % 5 1276662 In addition, the housing of the 0A or the electrical product is often used in combination. Simple screw lock In the case of the resin composition of the type IU, when the resin composition having a poor elongation is introduced, the molded article and the metal screw are in contact with the screw seat of the screw (B〇ss; which is formed by integrally forming the composition of the tree and the molded article) Cracking often occurs, so how to improve the tensile elongation characteristics of the resin composition is an important issue to be solved when the polycarbonate resin is blended with the HIPS resin. In order to improve the loss of the polycarbonate resin blended with the Hips resin, in general, a compatibilizing agent is added for improvement, and the strength requirement of the resin composition and the strength of the low molecular weight compatibilizer itself are not considered. The factors, generally compensating agents used in the prior art, are medium or high molecular weight polymers or copolymers. In the prior art, the compatibilizing agent used in blending the polycarbonate resin with the HIPS resin is a medium and high molecular weight compatibilizing agent, for example, an epoxy modified styrenic block copolymer (epoxy mod). Idents tyren icb 1 ock copolymer), styrene-maleic anhydride resin, terpene phenol resin, etc.; prior art such as: Japanese franchise public number: special open 2000- Patent No. 143,912, a resin composition composed of a polycarbonate resin, a HIPS resin, and an epoxy-modified styrene block copolymer compatibilizer, which has an effect of changing the impact resistance and surface impact resistance of the resin composition. Further, for example, Japanese Laid-Open Patent Publication No. Hei 8-034915, a resin composition in which a polycarbonate resin is combined with a HIPS resin and a compatibilizing agent, wherein the compatibilizing agent includes styrene-propylene. a nitrile copolymer, a styrene-maleic anhydride copolymer, and a styrene-based maleic anhydride copolymer having a maleic anhydride monomer content of about 8% by weight (low maleic anhydride content) and a solution viscosity of 2 ~l〇cps 1276662 of 77 sub-copolymer', but the above-mentioned prior patents for the resin composition of the impact-resistant thief and extension of the _ good still shirt, respectively, the fat extension characteristics of the health, can not be full of red Γ The problem to be solved and the means to solve it] The purpose of this mind is to improve the above-mentioned lack of technology, and after careful research, the carbon-based resin (4) and the anti-crushing agent = fat 2 and no residue (6) scale a resin composition in which an unsaturated diweixuan copolymer ((10)

= body fresh ethylene _ is made of silk, and its solution viscosity = 1.9cPS or less 'unsaturated two bribes liver monomer content in the 丨 即 即 ; ; 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达 可达_ impact strength and excellent elongation characteristics; the other object of the present invention is that the composition of the polycarbonate sulphate can be obtained in a difficult manner, and can obtain good freshness and excellent processing fluidity, impact strength and elongation characteristics. Contents: The present invention is a resin composition having excellent processing flow, good resistance to rotation and excellent elongation characteristics, and comprises: polycarbonate resin (A) 25 to 98% by weight; impact-resistant polystyrene resin ( B) 2 to 75% by weight; and an unsaturated copolymer (6) which is 2 to 10 parts by weight relative to the polycarbonate fine (A) and the impact-resistant polyphenylene __(8) and (10) parts by weight · The 'unsaturated difilament (6) is composed of the complementary and two-contact styrene monomer; its solution viscosity is below i 9cps, and the content of unsaturated diphthalic anhydride monomer is 10~60 weight. %. 7 1276662 The polycarbonate-based resin (A) of the present invention may be any homopolycarbonate or copolycarbonate known in the art, which may be prepared according to any of the processes known in the art, for example, by an interfacial polycondensation process, The polycondensation in a homogeneous phase or the use of transesterification, the aforementioned processes and combinations of reactants, polymers, catalysts, solvents and conditions are well known in the art and are disclosed in U.S. Patent Nos. 2,964,974, 2,970, In the cases of 137, 2, 999, 835, 3, 999, 846, 3, 028, 365, 3, 153, 008, 3, 187, 065, 3, 215, 668, 3, 258, 414 and 5, 010, 162, suitable polycarbonates can be selected from the following bisphenols: Biphenyl, bis-(hydroxyphenyl)-alkane, bis-(hydroxyphenyl)-bis, bis-(hydroxyphenyl) monolith, bis-(no phenyl)-mystery, double- Phenyl)--, bis-(phenyl)-yttrium, bis-(hydroxyphenyl)-indole, alkylcyclohexylene bisphenol, p-(phenyl)-diisopropylbenzene, And nuclear burning, nuclear halogenated derivatives, and mixtures thereof of the foregoing compounds. Specific examples of the aforementioned bisphenols are: 4, 4,-dihydroxy phenyl, 2,2'-bis-(4-hydroxyphenyl)-propane, 2,4'-bis-(4-hydroxyl Base) 2-methylbutyrol, 1,1-bis-(4-phenyl)-cyclohexane, α,α-bis-(4-phenyl)-diisopropylbenzene, 2, 2-bis-(3-indolyl-4-hydroxyphenyl)-propane, 2,2-bis-(3-chloro-4-hydroxyphenyl)-propane, di-(3,5-difluorenyl) 4-hydroxyphenyl)monodecane, 2·2-bis-(3,5-dimethyl-4-hydroxyphenyl)-propane, bis-(3,5-dimethyl-4-phenyl) ) 飒,2,4-bis-(3,5-dimethyl-4-phenyl)|methylbutane, 1,1-bis(3,5-dimethyl-4-hydroxybenzene) a) cyclohexane, α,^-bis-(3,5-dimethyl-4-hydroxyphenyl)-p-diisopropylbenzene, 2,2-bis-(3, 5-dichloro- 4-hydroxyphenyl)-propane, 2,2-bis-(3,5-dibromo-4-hydroxyphenyl)-propane, and the like. Particularly suitable bisphenols are · 2, 2,-bis-(4-hydroxyphenyl)-1276662 propane, commonly known as bisphenol A (bisphen〇1 A), the aforementioned double _ can and phosgene The reaction produces an aromatic polycarbonate. In addition, the Japanese publicly licensed flat 1-15_ full-time seed production is to pre-polymerize biguanide and diphenyl phenyl carbonate monomer into low molecular weight polymer, and then pass through crystallization and polymerization. Polycarbonate (A) was obtained. The weight average molecular weight of the polycarbonate resin (A) is preferably from 10,000 to 100,000, and the weight average molecular weight is preferably from 20,000 to 100,000 when used alone; Different weight average molecular weight • Polycarbonate is fine, 20,000 to 100,000 and 〇 30,000 to 20,000 are preferred; more preferably 21,000 to 50,000 and L 10,000 to 9.0 million. In the present invention, when the polycarbonate resin (A) has two types of polycarbons having a high and a low weight average molecular weight, it is possible to obtain a physical property balance of Longjia. In the present invention, the use ratio of the high weight average molecular weight polycarbonate resin (10) and the low weight average molecular weight polycarbonate resin (4) is preferably (5 〇 to 90) / (10 to 50). Further, the amount of the polycarbonate-based resin (A) of the present invention is 25 to 98% by weight based on the total weight of the resin of the polycarbon-based resin (A) and the impact-resistant polystyrene resin and the resin (8). Preferably, it is 45 to 97% by weight, preferably 55 to 96% by weight, and when the amount of the resin (A) is more than 98% by weight, the flowability of the resin composition is poor. When the amount of the resin (A) is less than 25% by weight, the impact resistance and elongation characteristics of the resin composition are not good. The impact-resistant polystyrene resin (8) of the present invention is obtained by copolymerizing a di-saturated rubber with an erythrene monomer and, if necessary, a copolymerizable monomer; preferably, it is 3 to 20 parts by weight. In the presence of the diene rubber, and in the case of 80 to 48 parts by weight of the monomer and Q to 17 parts by weight of the copolymerizable single 1276662, and optionally, a polymerization initiator, a chain transfer agent, and an appropriate amount of solvent are added. Copolymerization, the polymerization method includes solution or block or block suspension polymerization, wherein solution or block polymerization is preferred, which may be batch or continuous polymerization; the reactor may be a fully mixed reactor (CSTR) or plug reactor (PFR) or static hybrid reactor (staticreact〇r), can also be used in series or in parallel for several reactors, or fully mixed and plug reactors, then the reactor 1〜lOvm。 The stirring rate is 5~55rpm, the polymerization temperature is 8〇C~250°C, and the weight average particle diameter of the rubber particles of the dispersed phase in the impact resistant polystyrene resin (B) is 〇. 1~lOvm. One type of the above olefin rubber can be, for example, a polybutadiene rubber (which can be further classified into a high cis content polybutadiene rubber and a low cis content polybutadiene rubber), polyisoprene. One or more kinds of rubbers such as a rubber, a styrene-based butadiene-based copolymer, a styrene-based isoprene-based copolymer, and an ethylene-propylene-diene rubber are used in combination. Specific examples of the above-mentioned ethylene fluorene monomer are: styrene, α-methyl styrene, p-t-butyl styrene 'p-methyl styrene, o-methyl phenyl ene, m- fluorenyl Styrene, 2,4-dimethylstyrene, ethylstyrene, α-methyl-p-methylstyrene, bromostyrene, etc., of which styrene and α-mercaptostyrene are preferred. The above copolymerizable monomer is specifically, for example, an acrylate monomer, a methacrylic methacrylate monomer, a maleimide monomer, or an acrylic monomer (eg, acrylic acid, methacrylic acid), wherein Specific examples of the acrylic acid vinegar-based monomer, such as decyl acrylate, acryl vinegar, isopropyl acrylate, butyl acrylate, polyethylene glycol diacrylate vinegar, etc., wherein butyl acrylate good. Specific examples of the methacrylate monomer are: methyl acetoacetate methyl ketone, methyl 1272662 ethyl acrylate, propyl methacrylate, butyl methacrylate, benzyl methacrylate, methacrylic acid. Hexyl ester, cyclohexyl methacrylate, dodecyl decyl acrylate, 2-hydroxyethyl methacrylate, glycidyl methacrylate, dinonylaminoethyl methacrylate, ethylene dimethacrylate Ethylene dimethacrylate, neopentyl dimethacrylate, etc., among which decyl methacrylate and butyl methacrylate are preferred. Specific examples of maleimide monomers such as: maleimide, N-methyl maleimide, N-isopropyl maleimide, N-butyl malayan Amine, n-hexylmaleimide, octylmaleimide, N-dodecylmercaptoimine, N-cyclohexylmaleimide, N-phenylmaleimide (PMI for short), N-2-methylmaleimide, N-2,3-dimethylphenylmaleimide, n-2,4-dimethylphenylmaleimide , N-2, 3-diethylphenylmaleimide, n-2,4-diethylphenylmaleimide, N-2,3-dibutylphenylmalazone Amine, N-2, 4-dibutylphenylmaleimide, N-2, 6-dimethylphenylmaleimide, N-2, 3-dichlorophenylmaleimide , N-2, 4-dichlorophenylmaleimide, N_2, 3-dibromophenylmaleimide or N-2,4-dibromophenylmaleimide, etc. N-phenylmaleimine is preferred. The copolymerizable monomer of the impact-resistant polystyrene resin (B) of the present invention is used in an amount of 0 to 4 parts by weight, preferably 2 to 4 parts by weight, more preferably 3, and heavy H can be copolymerized. In the case of a monomer, it is preferred to use a monomer containing no acrylonitrile monomer to obtain better flow processability. The appropriate amount of solvent used in the polymerization of the above impact-resistant polystyrene resin (B) may be stupid, toluene, ethylbenzene, p-xylene, o-dimethylbenzene, m-xylene, and pentane, octane, and cyclohexane. And methyl ethyl ketone, propylene _, methyl butyl hydrazine and the like. 1276662 After the above polymerization is finished, the preheater is heated and the unreacted monomer and other volatiles are removed by a devolatilization step. Generally, the devolatilization step can be performed by using a vacuum degassing tank or by removing the degassing device. Volatile matter; the devolatilized polymer melt is extruded and granulated to obtain the impact-resistant polystyrene resin (B) of the present invention. The impact polystyrene resin (β) of the present invention is used in an amount of 2 to 75% by weight, preferably 3 to 55% by weight, based on 100% by weight of the total of the resin (A) and the resin (better). 45 % by volume, when the impact resistant polystyrene resin • (B) accounts for more than 75% by weight of the resin composition, the softening point of the resin composition decreases, the impact strength and elongation characteristics deteriorate; When the impact polystyrene resin (Β) accounts for 2% by weight or less in the resin composition, the molding fluidity of the resin composition is deteriorated, and the elongation property is also deteriorated. The unsaturated dicarboxylic anhydride copolymer (C) of the present invention is obtained by copolymerizing an unsaturated dicarboxylic anhydride monomer and a styrene monomer; and the specific examples of the unsaturated dicarboxylic acid anhydride monomer are: Anhydride (4) Scratch, citraconic anhydride, itaconic anhydride, ac〇nitic anhydride, wherein maleic anhydride (maleic anhydride) is compared good. The specific example of the styrene monomer of the unsaturated dicarboxylic anhydride copolymer (C) is the same as that of the styrene monomer of the above impact resistant polystyrene resin (8), and will not be repeated here. ~ The unsaturated dicarboxylic anhydride copolymer of the present invention (the polymerization method of hydrazine includes solution polymerization, bulk polymerization, suspension polymerization, emulsion polymerization, etc., which may be batch or continuous polymerization. Taking continuous silk liquid polymerization as an example' 15~wt% of unsaturated-carboxy phthalic anhydride monomer and styrene monomer 4〇~85 weight 12 1276662 篁〇/° with appropriate amount of solvent, polymerization initiator, chain transfer agent The feed solution continuously enters the reactor, the polymerization temperature is 110~240°c, the polymerization time is 0.5~10 hours, the reactor pressure is 丨川~丨丨kg/cm2; the reactor is a belt-shaped spiral stirring blade, propeller Stirring blades, or other mixing blades that produce high shear stress, etc., the reactor can be a continuous stirred reactor (CSTR) or a 4 king plug flow reactor (piUg, or static reactor) The same reactor or a combination of different types, preferably the first reactor uses a continuous stirred reactor (CSTR), and then the second and / or subsequent reactors, the subsequent reactors can be connected, , Bell stir: Wrest reactor, check flow a reactor or a static mixing reactor, etc. The aforementioned monomer or additive is continuously fed to the first reactor and/or the second reactor, and/or its subsequent reactor, respectively, and is required to be in the second And/or its subsequent reactor, adding monomer, chain transfer agent, initiator, etc. to carry out polymerization, and finally the monomer conversion rate can reach 3〇~95%. The unreacted monomer is removed by the devolatilization device, After the low volatiles such as solvent are removed, they are returned to the feed tank as a feed solution. # The above devolatilizer can be: a single-axis or double-axis extruder with a detachment, and can be placed in the extruder as needed. Adding devolatilization aids, such as water, cyclohexane, carbon dioxide, etc., and the extruder can also be provided with a kneading zone and a push section as needed. The unsaturated dicarboxylic anhydride copolymer of the present invention (In the case of batch solution polymerization, 15 to 60% by weight of unsaturated dicarboxylic anhydride monomer and 40 to 85% by weight of styrene monomer and an appropriate amount of solvent, polymerization initiator, chain transfer agent Waiting continuously into the reactor, the polymerization temperature is 70~23 (rc, polymerization time is 0.5 After 12 hours, the reactor pressure is 0·5~10 kg/cm2; after the reaction is completed, 13 1276662, the copolymer is taken out and the money is degassed, and the unsaturated ampacamide anhydride (c) is obtained. The unsaturated two of the present invention The content of the unsaturated phthalic anhydride monomer in the carboxylic anhydride copolymer ((:) is 10 to 6 wt%, preferably 14 to 58 wt%, more preferably 18 to 55 wt%, when the unsaturated second thief When the content of the anhydride monomer is less than 1% by weight, the effect of improving the impact strength and elongation of the resin composition is insufficient. When the content of the unsaturated dicarboxylic anhydride monomer is (9)% by weight or more, the resin composition and the color change are obtained. The unsaturated diphthalic anhydride copolymer (c) of the present invention has a solution viscosity of 1.9 cps or less, preferably 〇·;!~; [8 cps, more preferably 〇·3~丨· 卯. The viscosity of the solution is an index of the molecular weight. The copolymer is dissolved in a methyl ethyl ketone solvent to form a 10% by weight copolymer solution, and 10 ml of the copolymer solution is taken in a viscometer at a temperature. Determination. When the solution viscosity of the unsaturated dicarboxylic anhydride copolymer (C) of the present invention is more than 1.9 cps, the impact strength and elongation of the resin composition are lowered. The solution viscosity control of the copolymer (C) is achieved by the polymerization temperature, the polymerization initiator, the type of chain transfer agent, and the amount used; the polymerization temperature is about 7 ° C to 250 ° C. (: Specific examples of the polymerization initiator used for the polymerization of the unsaturated dicarboxylic anhydride copolymer (C) of the present invention···························· ), t-butyl peroxide, t-butyl hydroperoxide, cumene hydroperoxide, t-butyl peroxybenzoic acid T-butyl-peroxy benzoate, bis-2-ethylhexylperoxydicarbon 14 1276662 bis-2-ethylhexyl peroxy dicarbonate, tert-butylperoxy isopropyl carbonate (tert- Butyl peroxy isopropyl carbonate (BPIC), cyclohexanone peroxide, 2,2'-azo-bis-isobutyronitrile, 1, Γ-couple 1,2-azi-bis cyclohexane - 1-carbonitrile, 2,2-azo-bis-2-methylbutyronitrile (2, 2'-azo-bis-2 -methyl butyronitrile), etc., the polymerization initiator is used in an amount of from 0 to 10 parts by weight based on 100 parts by weight of the raw material monomers. Unsaturated dicarboxylic anhydride copolymer (C) is polymerized. Specific examples of the chain transfer agent to be used are mercapto mercaptan, n-butyl mercaptan, cyclohexyl mercaptan, n-dodecyl mercaptan, stearyl mercaptan, third- T-dodecyl mercaptan (TDM), n-propyl mercaptan, n-octyl mercaptan, third-octyl mercaptan, third-mercapto mercaptan, etc.; chain transfer The amount of the agent used is 1 to 5 parts by weight based on 1 part by weight of the raw material monomer. Specific examples of the solvent used for the polymerization of the unsaturated dicarboxylic anhydride copolymer (C) are benzene, toluene, ethylbenzene, and p-pair. Toluene, o-xylene, m-xylene, and pentane, octane, cyclohexane, and methyl ethyl ketone, acetone, methyl ethyl ketone, etc.; the solvent is used in an amount of 100 parts by weight of the raw material monomer 〇 〇〇 2 〇〇 weight The unsaturated dicarboxylic anhydride copolymer of the present invention ((:) is based on the total weight of the resin of the polycarbonate resin (A) and the impact resistant polystyrene resin (B). 2 to 10 parts by weight, preferably 〇·3 to 〇 by weight, more preferably 〇·4 to 7.5 parts by weight; if the unsaturated dicarboxylic anhydride copolymer (c) is used less than 0· 2 parts by weight, the impact strength of the resin composition is lowered and the elongation is not good. If the amount of the unsaturated dicarboxylic anhydride copolymer (C) is more than 1 〇 15 8 1276662 parts, the impact strength and elongation of the resin composition are not good. The resin composition of the present invention can be mixed with other impact modifiers to achieve better physical properties. The other impact modifiers include: (meth) propylene, 酉 1 series - diene - styrene Copolymer or acrylonitrile-diuretic 7* styrene-based silk, cut ring copolymer, etc., used in an amount of 1 part by weight relative to the total of stalk, fat (Α) and resin (β) 1 to μ parts. The impact modifier of the present invention is preferably a acrylonitrile-diuretic-phenylene-based copolymer. The emulsified graft polymerization method is exemplified by the combination of a styrene monomer, an acrylonitrile monomer, and optionally a copolymerizable monomer in the presence of a second rubber latex. Single-view compound, polymerized to obtain a weight average _ G. G5~〇. 8 _ of the acrylonitrile-diene-styrene copolymer, or made of different = weight flat, particle size mixed into a pellet The graft copolymer having a bimodal distribution is subjected to a step of agglomerating, dehydrating, drying, and the like to obtain a powdery acrylonitrile oxime-diene-styrene copolymer. "The diene rubber emulsion may be, for example, a polybutadiene-based, a butadiene-based ethylene-ruthenium copolymer, a butadiene-acrylonitrile-based copolymer, or a dibutyl ruthenium." Copolymer, isoprene-acrylic acid, the above-mentioned acrylonitrile-diuretic-phenylene system = specific examples: acrylic acid vinegar monomer, methyl propyl phenanthrene and maleic imine A monomer or the like, wherein a specific example of a acrylic acid vinegar-based monomer and a maleidene-based monomer === ethylene-based resin (8), which will not be described here. η (10) silk paper 16 1276662 The present invention The impact modifier (sulfonium-based) manufacturing method is emulsified grafted poly 'it: styrene-ethyl red (four) rubber Wei _ in the presence of a copolymer with the body. "Do not graft together ♦ get (methyl) acrylic acid g to the system - diterpene - styrene

The structure of the pull-up, (- =) __-diene-benzene- _ copolymer is the structure of the two-eighth ^ ΙΤ ^ 11) 'core phase is the second material, the main rubber shaft is the above two Rubber such as: Ding Er Fu, Li Er Er Fu, 1,3-pentadiene and other rubber and styrene, benzoic acid vinegar system shouted. The detailed (meth)acrylic I-based monomer includes an acrylate monomer, a methacrylic monomer, and the like. Here, specific examples of the propylene-based monomer and the methacrylic acid-based monomer are as described in the impact-resistant polystyrene resin (8), and will not be described here. For the production method of the (meth)acrylic acid S-diene-styrene-based copolymer, for example, Japanese Laid-Open Patent Publication No. SHO 58 59258, Japanese Laid-Open Patent Publication No. Sho. Bulletin Ping Bu 14 Cong, Public Licensed Gazette No. 6__37, U.S. Invention No. 4180494, and the like. The impact modifier-containing rubber-graft copolymer of the present invention is obtained by grafting a rubber containing shixi and a styrene monomer, an acrylonitrile monomer, and a (meth)acrylic acid vinegar monomer. Among them, emulsified graft polymerization is preferred. Taking the emulsification graft polymerization method as an example, the composite formed with 17 1276662 in the presence of the cut rubber lag; the above-mentioned cut (four) shape of the neofilament after (four) eight.橡胶 The rubber-based rubber is mainly made of a rubber-based monomer, an acrylic-based monomer, and a (meth)acrylate-based monomer.

Another object of the present invention is to provide a good balance between flame retardancy and process fluidity, excellent impact strength and elongation properties when a flame retardant composition is added to a polycarbonate composition. The present invention combines the composition of the present invention with a flame retardant and a flame retardant to achieve a flame retardancy and a balance of physical properties. The above-mentioned flame retardant is specifically, for example, a scaly flame retardant or a halogen-based flame retardant, and specific examples of the tooth-based flame retardant include decabromo diphenyl ether and ethylene double four. Ethylene bis tetra bromo phthalimide, 1,2-bis penta bromo phenyl ethane, tetra broino bisphenyl-A, Brominated epoxy resin oligomer, tris(tri bromo phenyl)phosphate, etc., specific examples of phosphorus-based flame retardant compounds, triphenyl phosphate, and phosphoric acid tris(II) Toluene ester), phosphoric acid (T-phenyl diphenyl ester), triphenyl phosphate, tris(isopropylbiphenyl phthalate), trimethyl phosphate, triethyl sulphate, tributyl phosphate, phosphoric acid Octyl ester, tris(butoxyethyl)phosphate, phosphoric acid (octyldiphenyl ester), o-phenylphenol phosphate, pentaerythritol phosphate, neopenta 1272662 glycol phosphate, replacement neopentyl glycol A phosphate, a nitrogen-containing phosphate, an aromatic phosphate represented by the following structural formula (1), and the like. In particular, it is preferred to use an aromatic phosphate ester represented by the structural formula (1). ο (Ο- X一〇 -

OAr4 ΟΑΗ (1) (Ar1〇〉--- ρ—........... (ΟΑ^

(In the above formula, Ar1, Ar2, Ar3, and Ar4 are the same or different halogen-free aromatic groups, and X is a structure selected from the following structural formulae (2) to (4). Formulae (2) to (4) The towels 'R~r are the same or different hydrogen atoms or alkyl groups having 1 to 5 carbon atoms, and γ is directly bonded 〇, s, sa, c(CH3)2, cH2, CHPh; Ph is a phenyl group, and n in the structural formula (1) is an integer of G or more, and k and m in the structural formula (1) are each an integer of 〇 or more and 2 or less, and (k+m) is an aromatic having a different structure. Phosphate is used in combination.

乂 an integer of 2 or less. The other is related to the aromatic phosphorus. n in the structural formula (1) is an integer of G or more, and the upper limit of the η value is preferably 4 G or less from the viewpoint of flame retardancy; preferably, the following is 1276662, preferably 5 or less. Further, each of k and m is an integer of 〇 or more and 2 or less, and k + m is an integer of 〇 or more and 2 or less. Preferably, k and m are each a number of 0 or more and 1 or less, and preferably k and m are each 1. In the above structural formulae (2) to (4), R1 to R8 are the same or different hydrogen atoms or a group having 1 to 5 carbon atoms. Specific examples of the alkyl group having 1 to 5 carbon atoms are as follows: methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, tert-butyl group, neopentyl group, and third amyl group. Wait. Among them, a hydrogen atom, a mercapto group, and an ethyl group are preferred, and a hydrogen atom is particularly preferred. Further, Ar, Ar, Ar, and Ar4 are the same or different halogen-free aromatic groups. The towel, the filament may be an aromatic group containing a benzene skeleton, a naphthalene skeleton, a nodal skeleton, or an anthracene skeleton. Among them, an aromatic group containing a benzene skeleton or a naphthalene skeleton is preferred. These aromatic groups may be replaced by an organic residue having no halogen atom (preferably an organic residue having 1 to 8 carbon atoms), and the number of the substituent groups is not particularly limited, and preferably 1 to 3 is preferable. Specific examples are: phenyl, anthracenylphenyl, xylylphenyl, cumylphenyl, 1,3,5-trimethylphenyl, naphthyl, anthryl, onion, etc. Among them, a phenyl group, a tolyl group, a xylyl group, a isopropylphenyl group or a naphthyl group is preferred, and a phenyl group, a tolyl group or a diphenylene group is particularly preferred. Phosphorus-based flame retardants sold in the market are: PX-200, PX-201, PX-13, CR-733S, Tpp, CR-74, _7, TCP, TXP, CDP, manufactured by Da Ba Chemical Co., Ltd. Among them, one or two or more species are used. It is difficult to say that the amount of use is 1 to 40 parts by weight based on 100 parts by weight of the total of lion (A) and fine (8). $以难__如: 三统H秘二锑, chlorinated polyethylene, polytetrafluoroethylene, polyhexa-I propylene, tetrafluoroethylene/hexafluoropropylene total 20 1276662 polymer, tetraethylene ethylene / perfluoro The base-based dilute copolymer, the six gas _ /, the material: two, two two chaos = / ethylene copolymerization '% of the sultan _ agent used amount for the resin (A) and the reversal (8) 0.1 to 5 parts by weight. 1 knows

In addition: the present invention can be added to the machine composition towel in the range which does not significantly impair the effect of the resin composition, such as: colorant filling agent, light female agent, heat stabilizer, plasticizer, _ , release agent, tackifier, charged anti-glare, oxidation inhibitor, conductive solution. θ The other additives mentioned above are, for example, an ester-based plasticizer of butyl stearate, a vinegar-based (tetra) fluorene, a polydifluorenyl-based sulphur-containing organic sulphur, a higher fatty acid and a metal salt thereof, and a sterically hindered oxygen-containing fresh-keeping; They may be used singly or in combination, and the other added amounts are 0 to 5 parts by weight based on 100 parts by weight of the composition. The resin composition of the present invention may optionally contain a filler such as glass fiber, shitian, carbonic acid, carbon black or the like; and the amount used is 〇200 parts by weight based on 100 parts by weight of the resin composition. Further, the resin composition of the present invention may be further formulated with other copolymers such as styrene-based (mercapto)propionate-acrylonitrile-based copolymer and the present vinyl-(meth)acrylate system. Copolymer, styrene-based (meth)acrylate-acrylonitrile-maleimide copolymer, styrene-(meth)acrylate-maleimide copolymer, Methyl) acrylate-based maleimide copolymer, poly resin, polyphenolic resin, polyphenylene oxide, polybutyrene Terephthalate), polyethylene terephthalate 21 1276662 ylene terePhthalate). The above-mentioned addition of other copolymers is used in an amount of from 0 to 200 parts by weight based on 100 parts by weight of the resin composition. 〆 发 发 日 余 余 余 余 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县The mixing and mixing machine is prepared by mixing and mixing. Usually, after mixing and kneading by these extruders, the pressed extrudate is cooled and granulated. The above-mentioned kneading is generally performed at 160 to 28 (TC, and the temperature of 180 250 C is better, and each is blended. The mixing and kneading of the components is not particularly limited. The use of the resin composition of the present invention is not particularly limited, and it can be applied to various moldings of injection molding, compression molding, extrusion molding, blow molding, thermoforming. Finished products made by vacuum forming and hollow molding, such as padding, film molding, etc. [Physical property test] 1. Flow melt index (MI): measured according to ASTM-D1238, load l〇kg, melting temperature 220° Under the condition of C, the outflow amount of 10 minutes, single # position (g/ΙΟ points) 2. Softening temperature (SP): measured according to ASTM-D1525 standard, unit (.〇. 3. Izod impact strength (IZ ): According to ASTM D-256 (with notch, thickness 1/8 inch pairs), the unit is (kg-cm/cm). 4. Extension characteristics (EL): according to ASTM D-638 (thickness is 1/8 inch)哑铃 哑铃 dumbbell type test piece), the unit is (%) 5, burning test: UL 94 V-0 or UL 94 V-2 test mark A plastic test piece (125 mm x 13 mm x 2 · 5 mm) of the resin composition of the present invention is burned by fire and passed the test to obtain UL 94 V-0 or UL 94 V-2. 22 1276662 6. Copolymerization of unsaturated dicarboxylic anhydride Determination of the solution viscosity (cps) of the hydrazine: the method of measuring the unsaturated dicarboxylic anhydride copolymer (C) dissolved in a methyl ethyl ketone solvent to a copolymer solution of 1% by weight to 10 ml The copolymer solution was measured in a viscometer by measuring the number of seconds of dropping ti in a 25 ° 恒温 thermostat bath, and using a standard solution for viscosity measurement according to the viscosity of the known viscosity (based on JIS Z8809-1978), the same measurement method was used. The number of seconds dropped is t(), and the viscosity coefficient K is calculated according to the following mathematical formula; φ K=( ??〇xd)/( to xd〇) 7? 〇: viscosity of the standard solution at 25 ° C (cps) To : the number of seconds of the standard solution at 25 ° C (sec) d : the density of the copolymer solution of 10% by weight (g / cm3) do : the density of the standard solution at 25 ° C (g / cm3) The product of the number of seconds of the copolymer solution (seven) and the coefficient of the viscosity tube (JQ), the solution viscosity (cps) is calculated. [Examples and Comparative Examples] Lu The symbols used in the examples and comparative examples represent the meaning. PC-1: polycarbonate resin (A); product of Xumei Company, trade name pC_11〇, molecular weight of about 26,000. PC-2·11⁄4 acid ester Resin (A); Asahi products, the trade name pc-175, molecular weight of about 15,000. HIPS: a polystyrene resin (B); a product of Chi Mei Company, trade name PH-888G, a molecular weight of about 190,000; a rubber content of 9% by weight; and a styrene content of 91% by weight. ABS · Acrylonitrile-diene-styrene copolymer; Chi Mei Company produces % 23 1276662 product 'trade name PA-709S, rubber content 25% by weight. MBS ·(Methyl)propanate-based-diene-styrene copolymer; Formosa Plastics, trade name FPC MBS Μ-51, rubber content 70% by weight 〇

Silicone modifier : Rubber graft copolymer containing Shi Xi, Mitsubishi

Rayon products, trade name Metablen SX-005. LSMA-1 · unsaturated dihydroanthracene anhydride copolymer (〇; maleic anhydride content = 25 wt%, styrene content = 75% by weight; solution viscosity = • 0·8 cPs (At〇fina, trade name SMA-3000; The molecular weight is about 3000. LSMA-2: unsaturated dicarboxylic anhydride copolymer (c); maleic anhydride content = 4 〇 weight 'stupid ethylene content = 60% by weight; solution viscosity = 1.6 cps (molecular weight about 50,000). LSMA-3: unsaturated dicarboxylic anhydride copolymer (c); maleic anhydride content = 5 〇 weight % 'stupid ethylene content = 50% by weight; solution viscosity = 0.72 cps (Atofina, trade name SMA-1) 〇; molecular weight is about 1000). LSMA-4: unsaturated diphthalic anhydride copolymer (c); maleic anhydride content = 25 wt%, stupid ethylene content = 75% by weight; solution viscosity = 5 cps 〇 LSMA-5: Unsaturated dianhydride copolymer (c); maleic anhydride content = 8% by weight, stupid ethylene content = 92% by weight; solution viscosity = 0·8 cps 〇LSMA-6: „anhydride copolymer (6); maleic anhydride content = 8 wt% 'phenethyl hydrazine content = 92% by weight; solution viscosity = 5 cps. 24 1276662 LSMA~T * • unsaturated diphthalic anhydride copolymer (C); maleic anhydride content =65% by weight 'styrene content=35wt%; solution viscosity= 〇·8cps 〇 calendar·(4) is a flame retardant; Big Eight company product, trade name CR-741 flame retardant. PX 200 · Phosphorus flame retardant Big eight company products, trade name PX-200 flame retardant. TPP · & diphenyl ester, phosphorus based flame retardant; Big eight company products, the trade name τ is a flame retardant. _ PTFE • PTFE DuPont product, trade name 6CJ. [Example 1] Polycarbonate resin (PC-1) and 19% by weight of poly stone ruthenium resin (pC-2) 1% by weight of the impact-resistant polystyrene resin (HI^S), and added 21 parts by weight of the unsaturated dicarboxylic anhydride copolymer (LSMA-1) and 8.0 by weight based on 1 part by weight of the total of the above respective resins. Part of the (meth)acrylic acid g-diene-based stupid ethylene copolymer (MBS), melt-kneaded with a biaxial extruder with a vent, set the temperature of 26 (rc, can be made Φ # with particles The resin composition of the present invention in the form of a pellet; the formulation of the resin composition and the physical property analysis thereof are shown in Table 1. [Examples 2 to 10] The same operation as in Example 1 Conditions and according to the formulation of Table 1, a resin composition of the present invention having a pellet shape can be obtained; the production formulation of the resin composition and its physical property analysis are shown in Table 1. [Comparative Example 1] 71% by weight Polycarbonate-based resin and 19% by weight of polycarbonate resin (PC-2) and 1% by weight of impact-resistant polystyrene resin 25 1276662 (HIPS), with double vents The shaft extruder is melt-kneaded and set at a temperature of 260 C to obtain a resin composition having a pellet shape; the production formula of the resin composition and its physical property analysis are shown in Table 2. [Comparative Examples 2 to 8] With the operating conditions of Comparative Example 1 and according to the formulation of Table 2, a resin composition having a pellet shape can be obtained; the production formulation of the resin composition and its physical property analysis are listed in Table 2 . [Comparative Example 9] 71% by weight of a polycarbonate-based resin (ρ(Μ) & 19% by weight of a polycarbonate resin (PC-2) and 1% by weight of an impact-resistant polystyrene resin (HIPS) And adding 4, 2 parts by weight of the unsaturated dicarboxylic anhydride copolymer (LSMA-7) and 8 parts by weight of the (meth) acrylate-based diene to 1 part by weight based on the total of the above respective resins. a styrene-based copolymer (MBS), which is melt-kneaded by a biaxial extruder equipped with a vent, and has a set temperature of 26 〇 π to obtain a resin composition having a pel let shape; the resin composition The color difference is yellowish brown. [Examples 11 to 12 and Comparative Examples 1 to 11] The same as the operating conditions of Example 1, and according to the formulation of Table 3, a resin composition having a pellet shape can be obtained. The production formulation of the resin composition and its physical property analysis are shown in Table 3. [Example 13] 71% by weight of a polycarbonate resin (PC-1) A 19% by weight of a polycarbonate resin (PC) -2) with 1% by weight of impact-resistant polystyrene resin (HIPS), and added to the total of 1 〇〇 parts by weight of the above respective resins. Amount of unsaturated dicarboxylic anhydride copolymer (LSMA-丨) and 80 parts by weight of 26 1276662 (meth)propionate is one or two suspects - t = PTFEt ^ test), 1.6 parts by weight Four kinds of the above compounds are attached to the biaxial extruder IT115 245〇C ' ^^^^(pellet)^^, which is attached with a vent, and the physical properties of the manufactured branches of the lyophilized products are listed in the table. 14 to 16 and Comparative Examples 12 to 15]

According to the operating conditions of Example 13, and according to the formulation of Table 4, a pellet (PeUet)-form composition was prepared; the manufacturing property of the tree assay and its physical property analysis are shown in Table 4. ▲ From the results of the above examples and comparative examples, in Comparative Example i and Comparative Example 2, when the amount of the unsaturated dianhydride copolymer (c) added was less than (1) 2 parts by weight, the _ strength of the tree was poor, and The scalability has dropped dramatically. In the case of Comparative Example 3, when the amount of the unsaturated diacetal anhydride copolymer (C) added was more than 10 parts by weight, the _(four) degree was greatly lowered and the softening temperature was poor. When the solution viscosity of the unsaturated diphthalic anhydride copolymer is more than 1.9 cps or more in the ratio of _ 4 , the impact strength and elongation of the resin composition are inferior. In Comparative Example 5, when the maleic anhydride content in the unsaturated dianhydride copolymer was less than 10% by weight, the softening temperature of the resin composition was lowered, and the impact strength and elongation were inferior. In Comparative Example 6 +, when the content of maleic anhydride in the unsaturated di-methane copolymer was less than 1% by weight and the viscosity of the solution was more than 丨, the impact strength and elongation of the composition of the tree sorghum were poor. When the amount of the ethylene-based resin (8) used in Comparative Example 7 was less than 2 parts by weight, the flow-melt index (Mi) of the eucalyptus composition was low, the workability was poor, and the change in elongation was insufficient. When the impact-resistant polystyrene-based resin (β) was used in Comparative Example 8, when 75 parts by weight of (8) 27 1276662 was used, the softening temperature difference of the resin composition, the impact strength, and the elongation were inferior. In Comparative Example 9, when the content of maleic anhydride in the unsaturated di- oxoic acid mixture was more than 6% by weight, the color of the resin composition was extremely poor. In comparison with Example U and Comparative Example 10, when the unsaturated dicarboxylic acid liver copolymer (C) was not added, the impact strength of the resin composition was lowered, and the elongation was drastically lowered. From the comparison between Example 12 and Comparative Example 11, the unsaturated bis-acid anhydride filaments (when the ruthenium was not added, the impact strength on the resin composition side decreased and the elongation was greatly lowered. Comparative Example - Comparative Example 15 Resin Group _ In the comparative example of the paste, when the saturated diphthalic anhydride copolymer (C) is less than 0.2 part by weight, the _ strength of the resin composition is lowered, and the elongation is drastically lowered. Comparative Example 13 When the solution viscosity of the towel 'unsaturated dicarboxylic anhydride copolymer (C) was more than 1.9 cps or more, the impact strength and elongation of the resin composition were poor. The unsaturated dicarboxylic anhydride copolymer (C) of Comparative Example 14 was used. When the maleic anhydride content is less than 1% by weight, the impact strength and elongation of the resin composition are poor. In Comparative Example 15, the content of maleic anhydride in the unsaturated dianhydride copolymer (C) is less than 1〇. When the weight is φ% and the viscosity of the solution is more than 1.9 cps or more, the elongation of the resin composition is poor. From the examples 1 to 16 in Tables to Table 4, it is known that the polycarbonate resin of the present invention is full of the composition. (A) 25 to 98% by weight, impact-resistant polystyrene tree (8) 2 to 75% by weight and a defined solution viscosity of 丨·(4) or less and an unsaturated dicarboxylic anhydride monomer content of 10 to 60% by weight of the unsaturated dicarboxylic anhydride copolymer (c) 〇·2 to 1 〇 by weight, A resin composition having good fluidity = impact strength and elongation characteristics; and a difficult flame retardant and physical property balance can be obtained when a flame retardant is added to the polycarbonate resin composition of the present invention. w, 28 1276662 [Schedule Description: Table 1: Manufacturing Formulations and Physical Property Analysis Tables of the Invention Examples II. Manufacturing Formulations of Comparative Examples 1 to 8 of the Present Invention and Physical Property Analysis Table 3: Inventive Examples 11 to 12 and Comparative Examples 10 to 11 Manufacturing Formulation and Physical Property Analysis Table 4: Manufacturing Formulations and Physical Property Analysis of Inventive Examples 13 to 16 and Comparative Examples 12 to 15

29 Φ: 1276662

|EL(%) |lZ(kg-cm/cm) |SP(°C) |MI(g/10 mins) PTFE (parts by weight) Phosphorus-based flame retardant (parts by weight) LSMA (parts by weight) Silicone modifier ( Parts by weight MBS or ABS (parts by weight) Ihips (weight ° / 〇) | PC-2 (% by weight) | PC-1 (weight » h - ^ ◦ Η - * OO 1 - ^ H - ^ cn OO f - »· 1 1 2.1 (LSMA-1) 1 8 (MBS) h—* h—^ CO −<I 1—* Example 1 s I—^ oo •1 I>0 1 1 2.1 (LSMA-1) 1 6 (MBS) cn 1 OO cn Example 2 1 - 4 § oo CJl 1 - 1 - ^ 1 1 - ^ 1 1 1.1 (LSMA-1) oo 1 1 - ^ CD - < I Example 3 1 - ^ H—L CJl CD I—* ro OO 1—^ IND 1 2.1 (LSMA-1) 1 12 (MBS) to DO oo Example 4 1—^ H—^ ol—i 4^ CT5 H—fc 1— k OO 1 1 3 (LSMA-1) 1 05 H—*· 00 oo Distortion? ί 1—^ § 1—* 4^ CP t—* _〇IND 1 1 3 (LSMA-1) 1 r^\ Gs H-* Ξ -<l Example 6 CO cn (—* CT> CJl 1 1 0.6 (LSMA-1) 1 9 (MBS) Cv〇tNO 1—^ 1 Example 7 1 CO oo h—* Private CD β-a 1 1 2.1 (LSMA-2) 1 8 (MBS) A CD H—* 1 Example 8 | h—^ ◦ OO H-* oo 1 1 r - GO 1 8 (MBS) h—fc CO 1 Embodiment 9 1 1— ^ g 00 tNO 1—k Private IND 1—1 r° DO 1 1 2.1 (LSMA-1) 1 12 (MBS) h—^ og 1 Example ίο 1 >1 at the edge aH replacement Π~100雔缂蚪 蚪 蚪 棼谇 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 127 -1 (% by weight) 71 71 71 71 71 71 100 10 PC-2 (% by weight) 19 19 19 19 19 19 — One HIPS (% by weight) 10 10 10 10 10 10 0 90 MBS (parts by weight) 8 8 8 8 8 8 8 8 Silicone modifier (parts by weight) LSMA 0 0.02 17 2.1 2.1 2.1 2.1 2.1 parts by weight LSMA-1 LSMA-1 LSMA-4 LSMA-5 LSMA-6 LSMA-1 LSMA-1 Phosphorus flame retardant (parts by weight) — — — — — — — — PTFE (parts by weight) MI(g/10 mins) 6.9 6.9 12.1 6.8 9.3 5.9 1.9 45 SP(°C) 142 142 132 146 138 146 148 99 IZ(kg- cm /cm) 65 62 36 56 56 59 94 18 EL(°/〇) 33 34 85 66 61 71 82 54

31 3 1276662 Table 3 Manufacturing Formulations of Inventive Examples 11 to 12 and Comparative Examples 10 to 11 and Physical Property Analysis Example 11 Comparative Example 10 Example 12 Comparative Example 11 PC-1 (% by weight) 50 50 71 71 PC- 2 (% by weight) 10 10 19 19 HIPS (% by weight) 40 40 10 10 MBS or ABS (parts by weight) 12 (MBS) 12 (MBS) 0 0 Silicone modifier (parts by weight) LSMA (parts by weight) 2.1 (LSMA- 1) 0 2.1 (LSMA-1) 0 Phosphorus-based flame retardant (parts by weight) — — — — PTFE (parts by weight) — — — — MI—g/10 20.3 18.4 10.3 9.5 SP(°C) 112 114 147 147 IZ (kg-cm/cm) 42 35 46 40 EL (°/〇) 90 41 96 42 1276662 Table 4 Production Formulations of Inventive Examples 13 to 16 and Comparative Examples 12 to 15 and Physical Property Analysis Example 13 Example 14 Example 15 Example 16 Comparative Example 12 Comparative Example 13 Comparative Example 14 Comparative Example 15 PC-1 (% by weight) 71 77 79 73 71 71 71 71 PC-2 (% by weight) 19 15 15 19 19 19 19 19 HIPS (% by weight) 10 8 6 8 10 10 10 10 MBS (parts by weight) 8 — 10 6 8 8 8 8 Silicone modifier (parts by weight) 8 LSMA 2.1 2.6 2.6 1.5 0.02 2.1 2.1 2.1 (parts by weight) (LSMA-1) (LSMA-1) (LSMA-1) (LSMA-3) (LSMA-1) (LSMA-4) (LSMA-5) (LSMA-6) Phosphorus-based flame retardant 16 18 20 8 16 16 16 16 (parts by weight) (BDP) (TPP) (PX-200) (BDP) (BDP) (BDP) (BDP) (BDP) PTFE 1 part by weight) 1.6 1.6 1.6 — 1.6 1.6 1.6 1.6 MI(g/ 10 mins) 20.2 22 17.8 15.3 17 16.4 21.3 14.8 oath) 106 99 104 108 103 106 104 108 IZug-cm/cm) 61 62 56 64 52 47 44 62 EL (°/〇) 122 124 110 114 64 83 76 86 UL -94 V-0 V-0 V-0 V-2 V-0 V-0 V-0 V-0 33

Claims (1)

X. Patent application scope: 1. A polycarbonate resin composition comprising: polycarbonate resin (A) 25 to 98% by weight; impact-resistant polystyrene resin (B) 2 to 75% by weight, It is obtained by copolymerizing a di-saturated rubber with a styrene monomer and a copolymerizable monomer; and an unsaturated dicarboxylic anhydride copolymer (C) based on the polycarbonate resin (A) and The total weight of the resin of the impact-resistant polystyrene resin (B) is 〜 2 to 10 parts by weight based on the weight of the Φ ;; wherein the unsaturated dicarboxylic anhydride copolymer (c) is composed of an unsaturated dicarboxylic anhydride monomer It is copolymerized with a styrene monomer; its solution viscosity is 1.9 cps or less, and the content of the unsaturated dicarboxylic anhydride monomer is 1 〇 6 6 〇 • wt%. 2. The polycarbonate-based resin composition according to the above-mentioned claim, wherein the resin composition further comprises an impact modifier. 3. The polyacetate according to the scope of the patent application claim 2 is a resin group, wherein the impact modifier is selected from the group consisting of: (meth) acrylate-diene-styrene copolymer And an acrylonitrile-based diene-based styrene-based copolymer and a broken rubber-graft copolymer, which is 1 to μ part by weight based on 100 parts by weight of the total of the resin (A) and the resin (B). 4. The root-spraying patent, please refer to the polycarbon thief resin composition described in item 1, wherein the resin composition further includes a phosphorus-based flame retardant, which is based on the sum of the resin (A) and the resin (B). 1 to 4 parts by weight of the weight part 0 34