Thermoplastic polycarbonate composition

Abstract

The present invention relates to a thermoplastic polycarbonate composition comprising the following components A-E: A) from 78 wt.% to 97 wt.% of an aromatic polycarbonate; B) from 0.05 wt.% to 0.09 wt.% of a fluorine-containing metal organic sulfonate; C) from 0.05 wt.% to 0.5% of an epoxy group-containing vinyl-based copolymer; D) from 2 wt.% to 20 wt.% of a glass fiber; and E) from 0.05 wt.% to 0.5 wt.% of an anti-dripping agent, wherein the amounts are relative to the total weight of the composition. The present invention also relates to a shaped article made from the composition. The polycarbonate composition according to the present invention has good flame retardancy.

Description

[0001]2023PF30131-FC -1- THERMOPLASTIC POLYCARBONATE COMPOSITION TECHNICAL FIELDThe present invention relates to a thermoplastic polycarbonate (PC) composition, and a shaped articlemade from the same.BACKGROUND ARTUp to now, there are polycarbonate compositions having good flame retardancy performance (suchas V0 at 1.5 mm according to UL94:2015) by adding enough amounts (more than 1000 ppm) oftraditional flame-retardant agents such as potassium perfluorobutane sulfonate. There are high requirements on the plastic housing materials for electrical & electronics (EE&A) applications targeting high flame retardancy level and good mechanical properties such as rigidness. In most cases, a flame retardancy level of UL94 V0 at a thickness of 1.5 mm needs to be achieved. In most flame-retardant polycarbonate compositions, potassium perfluorobutane sulfonate has beenapplied since the 1970s and has been proved to be the most efficient metal-salt flame retardant agentso far for flame-retardant polycarbonate compositions. Usually, less than 0.2 wt.% of potassiumperfluorobutane sulfonate is needed in polycarbonate compositions to achieve a flame retardancylevel of UL94 V0 at 1.5 mm.CN112430388A discloses flame-retardant glass fiber reinforced polycarbonate compositionscomprising potassium diphenylsulfon-3-sulphonate (KSS) or potassium perfluorobutane sulfonate asflame retardants. A flame retardancy level of UL94 V0 at a thickness of 1.6 mm for glass fiberreinforced polycarbonate compositions was achieved. Furthermore, the content of potassium KSS orglass fiber reinforced polycarbonate compositions is more than 1000 ppm.For compositions for electrical & electronics applications, usually higher than 1000 ppm of potassiumperfluorobutane sulfonate is needed to ensure a flame retardancy level UL94 V0 at a thickness of 1.5mm. In addition, in recent years, thin wall part designs based on polycarbonate materials havebecome a trend in some applications, which require even higher flame retardancy level such as UL94V0 at a thickness of 1.2 mm or 1.0 mm.US2020216663A1 discloses articles like housings for electrical & electronics applicationscomprising a heat resistant glass fiber reinforced polycarbonate composition with preferablyUL94 V1 at a thickness of 0.8 mm and 1.2 mm. The compositions comprises homopolycarbonateand copolycarbonates as well as 500–7000 ppm flame retardant salt. 2023PF30131-FC -2- However, since 2020 it is required by REACH (registration, evaluation, authorization and restriction of chemicals) regulation in the European Union that the loading of potassium perfluorobutane sulfonate in polymer blends should be less than 1000 ppm by weight.Therefore, there is a need for a polycarbonate composition having a flame retardancy level of V0according to UL94:2015, while having lower loading amounts of potassium perfluorobutanesulfonate than 1000 ppm to meet the requirements of REACH.SUMMARY OF THE INVENTION One object of the present patent invention is thus to provide a thermoplastic polycarbonatecomposition, the article made from which has a flame retardancy level of V0 according to UL94:2015at a thickness of 1.2 mm.Another object of the present invention is to provide an article, which has a flame retardancy level ofV0 according to UL94:2015 at a thickness of 1.2 mm.In a first aspect, the present invention provides a thermoplastic polycarbonate compositioncomprising the following components A-E:A) from 78 wt.% to 97 wt.% of an aromatic polycarbonate; B) from 0.05 wt.% to 0.09 wt.% of a fluorine-containing metal organic sulfonate; C) from 0.05 wt.% to 0.5% of an epoxy group-containing vinyl-based copolymer; D) from 2 wt.% to 20 wt.% of a glass fiber; andE) from 0.06 wt.% to 0.5 wt.% of an anti-dripping agent,wherein the amounts are relative to the total weight of the composition.In a second aspect, the present invention provides a shaped article made from the polycarbonatecomposition according to the first aspect the present invention.In a third aspect, the present invention provides a process for preparing the shaped article accordingto the second aspect of the present invention, comprising injection moulding, extrusion moulding, blow moulding or thermoforming the polycarbonate composition according to the first aspect of the present invention.The polycarbonate composition according to the present invention has good flame retardancy.The polycarbonate composition according to the present invention achieves a flame retardancy levelof V0 at a low thickness of 1.2 mm, and in some embodiments, even achieves a flame retardancylevel of V0 at a low thickness of 1.0 mm, as measured in accordance with UL94:2015. 2023PF30131-FC -3-In addition, the polycarbonate composition according to the present invention can have an Izodnotched impact strength of at least 10 kJ / m2, as measured in accordance with ISO180 / 1A:2000 (23^C,3 mm, 5.5J). Furthermore, the polycarbonate composition according to the present invention has good rigidness due to the presence of glass fiber. Other subjects and characteristics, aspects and advantages of the present invention will emerge even more clearly on reading the description and the examples that follow. DETAILED DESCRIPTION OF THE INVENTION In that which follows and unless otherwise indicated, the limits of a range of values are included within this range, in particular in the expressions "between…and…" and "from ... to ...". Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. When the definition of a term in the present description conflicts with the meaning as commonlyunderstood by those skilled in the art the present invention belongs to, the definition describedherein shall apply. Throughout the present application, the term “comprising” is to be interpreted as encompassing all specifically mentioned features as well as optional, additional, unspecified ones. Unless otherwise specified, all numerical values expressing amount of ingredients and the like which are used in the description and claims are to be understood as being modified by the term “about”. Component AThe polycarbonate composition according to the present invention comprises an aromaticpolycarbonate as component A.According to the invention, “aromatic polycarbonates” or else just “polycarbonates” is to be understood as meaning both homopolycarbonates and copolycarbonates, in particular aromatic ones. These polycarbonates may be linear or branched in known fashion. According to the invention, mixtures of polycarbonates may also be used. Aromatic polycarbonates selected in accordance with the invention preferably have weight-average molecular weights Mw of 15000 to 40000 g / mol, more preferably of 16000 to 34000 g / mol, even 2023PF30131-FC -4- more preferably of 17000 to 33000 g / mol, most preferably of 19000 to 32000 g / mol. The values for Mwhere are determined by a gel permeation chromatography, calibrated against bisphenol A polycarbonate standards using dichloromethane as eluent, calibration with linear polycarbonates (made of bisphenol A and phosgene) of known molar mass distribution from PSS Polymer Standards Service GmbH, Germany; calibration according to method 2301-0257502-09D (2009 Edition in German) from Currenta GmbH & Co. OHG, Leverkusen. The eluent is dichloromethane. Column combination of crosslinked styrene-divinylbenzene resins. Diameter of analytical columns: 7.5 mm; length: 300 mm. Particle sizes of column material: 3 µm to 20 µm. Concentration of solutions: 0.2% by weight. Flow rate: 1.0 ml / min, temperature of solutions: 30°C. Detection using a refractive index (RI) detector. The polycarbonates are preferably produced by the interfacial process or the melt transesterification process, which have been described many times in the literature.Particulars pertaining to the production of polycarbonates are disclosed in many patent documentsspanning approximately the last 40 years. Reference may be made here by way of example to Schnell, “Chemistry and Physics of Polycarbonates”, Polymer Reviews, Volume 9, Interscience Publishers, New York, London, Sydney 1964, to D. Freitag, U. Grigo, P.R. Müller, H. Nouvertné, BAYER AG, “Polycarbonates” in Encyclopedia of Polymer Science and Engineering, Volume 11, Second Edition, 1988, pages 648-718, and finally to U. Grigo, K. Kirchner and P.R. Müller “Polycarbonate” in Becker / Braun, Kunststoff-Handbuch, Volume 3 / 1, Polycarbonate, Polyacetale, Polyester, Celluloseester, Carl Hanser Verlag Munich, Vienna 1992, pages 117-299. The production of aromatic polycarbonates is effected for example by reaction of dihydroxyaryl compounds with carbonic halides, preferably phosgene, and / or with aromatic dicarboxyl dihalides, preferably benzenedicarboxyl dihalides, by the interfacial process, optionally using chain terminators and optionally using trifunctional or more than trifunctional branching agents, production of the polyester carbonates being achieved by replacing a portion of the carbonic acid derivatives with aromatic dicarboxylic acids or derivatives of the dicarboxylic acids, specifically with aromatic dicarboxylic ester structural units according to the carbonate structural units to be replaced in the aromatic polycarbonates. Preparation via a melt polymerization process by reaction of dihydroxyaryl compounds with, for example, diphenyl carbonate is likewise possible. Dihydroxyaryl compounds suitable for the production of polycarbonates are for example hydroquinone, resorcinol, dihydroxydiphenyls, bis(hydroxyphenyl)alkanes, bis(hydroxyphenyl)cycloalkanes, bis(hydroxyphenyl) sulfides, bis(hydroxyphenyl) ethers, bis(hydroxyphenyl) ketones, bis(hydroxyphenyl) sulfones, bis(hydroxyphenyl) sulfoxides, α,α’- 2023PF30131-FC -5- bis(hydroxyphenyl)diisopropylbenzenes, phthalimidines derived from derivatives of isatin or phenolphthalein and the ring-alkylated, ring-arylated and ring-halogenated compounds thereof. Preferred dihydroxyaryl compounds are 4,4’-dihydroxydiphenyl, 2,2-bis(4-hydroxyphenyl)propane(bisphenol A), 2,4-bis(4-hydroxyphenyl)-2-methylbutane, 1,1-bis(4-hydroxyphenyl)-p-diisopropylbenzene, 2,2-bis(3-methyl-4-hydroxyphenyl)propane, dimethylbisphenol A, bis(3,5-dimethyl-4-hydroxyphenyl)methane, 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, bis(3,5- dimethyl-4-hydroxyphenyl)sulfone, 2,4-bis(3,5-dimethyl-4-hydroxyphenyl)-2-methylbutane, 1,1- bis(3,5-dimethyl-4-hydroxyphenyl)-p-diisopropylbenzene and 1,1-bis(4-hydroxyphenyl)-3,3,5- trimethylcyclohexane and also the bisphenols (I) to (III) ,in which R’ in each case stands for C1- to C4-alkyl, aralkyl or aryl, preferably for methyl or phenyl,very particularly preferably for methyl. Particularly preferred dihydroxyaryl compounds are 2,2-bis(4-hydroxyphenyl)propane (bisphenol A), 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)propane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,1- bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 4,4’-dihydroxybiphenyl, and dimethylbisphenol A and also the diphenols of formulae (I), (II) and (III). These and other suitable dihydroxyaryl compounds are described for example in US 2999825 A, US 3148172 A, US 2991273 A, US 3271367 A, US 4982014 A und US 2999846 A, in DE 1 570703 A, DE 2063050 A, DE 2036052 A, DE 2211956 A and US 2999846 A, in DE 1570703 A, DE 2063050 A, DE 2036052 A, DE 2211956 A and DE 3832396 A, in FR 1561518 A,in the monograph “H. Schnell, Chemistry and Physics of Polycarbonates, Interscience Publishers, New York 1964” and also in JP 62039 / 1986 A, JP 62040 / 1986 A and JP 105550 / 1986 A. In the case of homopolycarbonates only one dihydroxyaryl compound is used; in the case of copolycarbonates two or more dihydroxyaryl compounds are used. The dihydroxyaryl compoundsemployed, similarly to all other chemicals and assistants added to the synthesis, may be contaminatedwith the contaminants from their own synthesis, handling and storage. However, it is desirable to use raw materials of the highest possible purity. Suitable carbonic acid derivatives are for example phosgene and diphenyl carbonate. 2023PF30131-FC -6- Suitable chain terminators that may be used in the production of polycarbonates are monophenols. Suitable monophenols are for example phenol itself, alkylphenols such as cresols, p-tert-butylphenol, cumylphenol and mixtures thereof.Preferred chain terminators are the phenols mono- or polysubstituted by linear or branched C1-C30alkyl radicals, preferably unsubstituted or substituted by tert-butyl. Particularly preferred chain terminators are phenol, cumylphenol and / or p-tert-butylphenol. The amount of chain terminator to be employed is preferably 0.1 to 5 mol% based on the moles of diphenols employed in each case. The addition of the chain terminators may be effected before, during or after the reaction with a carbonic acid derivative. Suitable branching agents are the trifunctional or more than trifunctional compounds familiar in polycarbonate chemistry, in particular those having three or more than three phenolic OH groups. Suitable branching agents are for example 1,3,5-tri(4-hydroxyphenyl)benzene, 1,1,1-tri(4- hydroxyphenyl)ethane, tri(4-hydroxyphenyl)phenylmethane, 2,4-bis(4-hydroxyphenylisopropyl)- phenol, 2,6-bis(2-hydroxy-5’-methylbenzyl)-4-methylphenol, 2-(4-hydroxyphenyl)-2-(2,4- dihydroxyphenyl)propane, tetra(4-hydroxyphenyl)methane, tetra(4-(4-hydroxyphenylisopropyl)- phenoxy)methane and 1,4-bis((4’,4”-dihydroxytriphenyl)methyl)benzene and 3,3-bis(3-methyl-4- hydroxyphenyl)-2-oxo-2,3-dihydroindole.The amount of the branching agents for optional employment is preferably 0.05 mol% to 2.00 mol%, based on moles of dihydroxyaryl compounds used in each case. The branching agents may be either initially charged together with the dihydroxyaryl compounds and the chain terminators in the aqueous alkaline phase or added dissolved in an organic solvent before the phosgenation. In the case of the transesterification process the branching agents are employed together with the dihydroxyaryl compounds. Particularly preferred polycarbonates are the homopolycarbonate based on bisphenol A, the homopolycarbonate based on 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, 4,4’- dihydroxybiphenyl, and the copolycarbonates based on the two monomers bisphenol A and 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane and also homo- or copolycarbonates derived fromthe diphenols of formulae (I), (II) and (III) 2023PF30131-FC -7- ,in which R’ in each case stands for C1- to C4-alkyl, aralkyl or aryl, preferably for methyl or phenyl,very particularly preferably for methyl. Preferred are also polycarbonates for the production of which dihydroxyaryl compounds of the following formula (1a) have been used: (1a), wherein R5 stands for hydrogen or C1- to C4-alkyl, C1- to C4-alkoxy, preferably for hydrogen ormethyl or methoxy particularly preferably for hydrogen, R6, R7, R8 and R9 mutually independently stand for C6- to C12-aryl or C1- to C4-alkyl,preferably phenyl or methyl, in particular for methyl, Ystands for a single bond, SO2-, -S-, -CO-, -O-, C1- to C6-alkylene, C2- to C5-alkylidene,C6- to C12-arylene, which can optionally be condensed with further aromatic rings containing heteroatoms, or for a C5- to C6-cycloalkylidene residue, which can be singly or multiply substituted withC1- to C4-alkyl, preferably for a single bond, -O-, isopropylidene or for a C5-to C6-cycloalkylideneresidue, which can be singly or multiply substituted with C1- to C4-alkyl,V stands for oxygen, C2- to C6-alkylene or C3- to C6-alkylidene, preferably for oxygen or C3-alkylene, p, q and r mutually independently each stand 0 or 1, if q = 0, W is a single bond, if q = 1 and r = 0 is, W stands for -O-, C2- to C6-alkylene or C3-to C6-alkylidene, preferably for -O- or C3-alkylene,if q = 1 and r = 1, W and V mutually independently stand for C2- to C6-alkylene or C3- to C6-alkylidene, preferably for C3 alkylene, Zstands for C1- to C6-alkylene, preferably C2-alkylene,o stands for an average number of repeating units from 10 to 500, preferably 10 to 100 and 2023PF30131-FC -8- m stands for an average number of repeating units from 1 to 10, preferably 1 to 6, particularly preferably 1.5 to 5. It is also possible to use dihydroxyaryl compounds, in which two or more siloxane blocks of general formula (1a) are linked via terephthalic acid and / or isophthalic acid under formation of ester groups. Especially preferable are (poly)siloxanes of the formulae (2) and (3) wherein R1 stands for hydrogen, C1- to C4-alkyl, preferably for hydrogen or methyl andespecially preferably for hydrogen, R2mutually independently stand for aryl or alkyl, preferably for methyl, Xstands for a single bond, -SO2-, -CO-, -O-, -S-, C1- to C6-alkylene, C2- to C5-alkylidene orfor C6- to C12-arylene, which can optionally be condensed with further aromatic rings containinghetero atoms, Xstands for a single bond, -SO2-, -CO-, -O-, -S-, C1- to C6-alkylene, C2- to C5-alkylidene,C5- to C12-cycloalkylidene or for C6- to C12-arylene, which can optionally be condensed with furtheraromatic rings containing hetero atoms, Xpreferably stands for a single bond, isopropylidene, C5- to C12-cycloalkylidene or oxygen,and especially preferably stands for isopropylidene, n means an average number from 10 to 400, preferably 10 and 100, especially preferably 15 to 50 and m stands for an average number from 1 to 10, preferably 1 to 6 and especially preferably from 1.5 to 5. 2023PF30131-FC -9- Also preferably the siloxane block can be derived from one of the following structures: wherein a in formulae (IV), (V) und (VI) means an average number from 10 to 400, preferably from 10 to 100 and especially preferably from 15 to 50. It is equally preferable, that at least two of the same or different siloxane blocks of the general formulae (IV), (V) or (VI) are linked via terephthalic acid and / isophthalic acid under formation of ester groups. It is also preferable, if p = 0 in formula (1a), V stands for C3-alkylene, if r = 1, Z stands for C2-alkylene, R8and R9stand for methyl, if q = 1, W stands for C3-alkylene, if m = 1, R5 stands for hydrogen or C - to C -alkyl, preferably for 61 4 hydrogen or methyl, Rand R7 mutually independently stand for C1- to C4-alkyl, preferably methyl, and o stands for 10 to500. Copolycarbonates with monomer units of the general formula (1a), in particular with bisphenol A, and in particular the production of those copolycarbonates are described in WO 2015 / 052106 A2. The polycarbonate particularly preferred contains BPA homopolycarbonate, more preferably is BPA homopolycarbonate. As examples of aromatic polycarbonate suitable for the present invention, mention can be made of 2023PF30131-FC -10- those produced from bisphenol A and phosgene, and sold under the trade name Makrolon®2400,Makrolon® 2600, Makrolon® 2800, Makrolon® 3100, Makrolon® 3105 by Covestro Co., Ltd.The aromatic polycarbonate is present in the composition according to the present invention in anamount ranging from 78 wt. % to 97 wt. %, preferably from 80 wt. % to 96 wt. %, more preferablyfrom 84 wt. % to 94 wt. %, relative to the total weight of the composition. Component BThe polycarbonate composition according to the present invention comprise a fluorine-containingmetal organic sulfonate as component B. As used herein, fluorine-containing metal organic sulfonates indicates metal salts of fluorine- containing organic sulfonic acid. The incorporation of fluorine-containing metal organic sulfonate improves the flame resistance of the polycarbonate compositions of the present invention. Examples of the metals contained in the fluorine-containing metal organic sulfonates include alkali metals such as lithium (Li), sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs); alkali earth metals such as magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba); and aluminum (Al), titanium (Ti), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), molybdenum (Mo), etc. Of those, an alkali metal or an alkali earth metal is preferable.Preferably, the fluorine-containing metal organic sulfonate is selected from the group consisting ofalkali metal salts and alkaline earth metal salts, even more preferable alkali metal salts of fluorine- containing organic sulfonic acid, wherein the metal is preferably sodium, potassium or cesium. Examples of the metal organic sulfonates include lithium (Li) fluorine-containing organic sulfonate, sodium (Na) fluorine-containing organic sulfonate, potassium (K) fluorine-containing organic sulfonate, rubidium (Rb) fluorine-containing organic sulfonate, cesium (Cs) fluorine-containing organic sulfonate, magnesium (Mg) fluorine-containing organic sulfonate, calcium (Ca) fluorine- containing organic sulfonate, strontium (Sr) fluorine-containing organic sulfonate, barium (Ba) fluorine-containing organic sulfonate, etc. Of those, in particular, alkali metal fluorine-containing organic sulfonates are preferable, including sodium (Na) fluorine-containing organic sulfonate, potassium (K) fluorine-containing organic sulfonate, cesium (Cs) fluorine-containing organic sulfonate, etc. Specific examples of preferred fluorine-containing metal organic sulfonates include: 2023PF30131-FC -11- alkali metal salts of fluorine-containing aliphatic sulfonic acids having at least one C-F bond in the molecule such as potassium perfluorobutane sulfonate, lithium perfluorobutane sulfonate, sodium perfluorobutane sulfonate, cesium perfluorobutane sulfonate, lithium trifluoromethane sulfonate, sodium trifluoromethane sulfonate, potassium trifluoromethane sulfonate, potassium perfluoroethane sulfonate and potassium perfluoropropane sulfonate; alkali earth metal salts of fluorine-containing aliphatic sulfonic acids having at least one C-F bond in the molecule such as magnesium perfluorobutane sulfonate, calcium perfluorobutane sulfonate, barium perfluorobutane sulfonate, magnesium trifluoromethane sulfonate, calcium trifluoromethanesulfonate, and barium trifluoromethane sulfonate; andalkali metal salts of fluorine-containing aliphatic disulfonic acids having at least one C-F bond in the molecule such as disodium perfluoromethane disulfonate, dipotassium perfluoromethane disulfonate, sodium perfluoroethane disulfonate, dipotassium perfluoroethane disulfonate, dipotassium perfluoropropane disulfonate, dipotassium perfluoroisopropane disulfonate, disodium perfluorobutane disulfonate, potassium perfluorobutane disulfonate, dipotassium perfluorobutane disulfonate and dipotassium perfluorooctane disulfonate.As the fluorine-containing metal organic sulfonates, preferable are alkali metal salts of fluorine-containing aliphatic sulfonic acids having at least one C-F bond in the molecule, particularly preferable are alkali metal salts of perfluoroalkane sulfonic acids. Particularly preferred, componentB in the compositions according to the invention comprises potassium perfluorobutane sulfonate,most preferably, component B in the compositions according to the invention is potassium perfluorobutane sulfonate. As commercial products of metal salts of fluorine-containing organic sulfonic acid, mention can be made of potassium perfluorobutane sulfonate, sold under the trade name Bayowet C4 by LANXESS AG Germany or Jiangxi Time Chemical.The fluorine-containing metal organic sulfonate is present in the composition according to thepresent invention in an amount ranging from 0.05 wt.% to 0.09 wt.%, preferably from 0.06 wt.% to 0.09 wt.%, more preferably from 0.06 wt.% to 0.08 wt.%, relative to the total weight of the composition. Component C The polycarbonate composition according to the present invention comprise an epoxy group- containing vinyl-based copolymer as component C. 2023PF30131-FC -12-As used herein, epoxy group-containing vinyl-based polymer includes a (meth)acrylate repeating unitcontaining an epoxy functional group.The term "(meth)acrylate” as used herein should be understood as meaning acrylate or methacrylate.Preferably, the vinyl-based polymer has a weight average molecular weight of 1,000g / mol to 10,000g / mol, as determined by GPC method with polystyrene as standard. In the process of measuring theweight average molecular weight in terms of polystyrene measured by the GPC method, a detector such as a commonly known analyzer and a differential refractive index detector, and an analyticalcolumn can be used. Commonly applied conditions, solvents and flow rates can be used. As a specificexample of the measurement conditions, a temperature of 30° C., a chloroform solvent and a flow rate of 1 mL / min can be mentioned. Specifically, in the (meth)acrylate repeating unit containing the epoxy functional group, the epoxy functional group can be bonded to the terminal of the branched chain of the (meth)acrylate repeating unit. The (meth)acrylate repeating unit may contain a main chain formed through polymerization between vinyl-based functional groups, and a branched chain extending in a branch shape from the main chain. The epoxy functional group may form a bond at the terminal of the branched chain of the (meth)acrylate repeating unit. More specifically, the (meth)acrylate repeating unit containing the epoxy functional group may include a repeating unit represented by the following chemical formula 3: chemical formula 3 wherein, R11is hydrogen or methyl group, R12and R13are each independently hydrogen or a linear or branched alkyl group having 1 to 10 carbon atoms, R14is a linear or branched alkylene group having 1 to 10 carbon atoms, and x is an integer of 1 to 20.Examples of a linear or branched alkyl group having 1 to 10 carbon atoms include methyl, ethyl,propyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl and the like. 2023PF30131-FC -13-Examples of a linear or branched alkylene group having 1 to 10 carbon atoms include a methylenegroup, an ethylene group, a propylene group, an isobutylene group, sec-butylene group, a tert- butylene group, a pentylene group, a hexylene group and the like. The alkyl group or alkylene group may be substituted or unsubstituted, and the term "substituted" means that a hydrogen atom contained in an alkyl group or an alkylene group is replaced with a specific functional group. Examples of the substituted functional groups are not particularly limited,and various functional groups or atomic groups widely known in the art, such as halogen, hydroxygroup, amino group and the like can be used without limitation. Further, the epoxy group-containing vinyl-based polymer may have an epoxy equivalent weight of 100 g / mol to 1500g / mol, or 200 g / mol to 1200 g / mol. The epoxy group-containing vinyl-based polymer may further include an aromatic vinyl-basedrepeating unit, a (meth)acrylic-based repeating unit, or an acrylonitrile-based repeating unit.The aromatic vinyl-based repeating unit means a repeating unit derived from an aromatic vinyl-based monomer, and specifically means a repeating unit constituting a polymer formed through polymerization between aromatic vinyl-based monomers. The aromatic vinyl monomer is a compound having one vinylic double bond and at least one benzene nucleus in the same molecule, and specific examples of the aromatic vinyl monomer are not particularly limited, but for example, compounds such as styrene, alpha-methylstyrene, 2- methylstyrene, 3-methylstyrene, 4-methylstyrene, 4-ethylstyrene, t-butylstyrene, 2,5- dimethylstyrene, 1,3-dimethylstyrene, 2,4-dimethylstyrene, 4-methoxystyrene, 4-ethoxystyrene, 4- propoxystyrene, 4-butoxystyrene, chlorostyrene, dichlorostyrene, trichlorostyrene, vinyltoluene, bromostyrene, dibromostyrene, tribromostyrene, vinylnaphthalene, isopropenyl naphthalene, isopropenyl biphenyl, divinyl benzene, alpha-methyl styrene vinyl toluene and the like can be mentioned. 2023PF30131-FC -14-More specifically, it may include the aromatic vinyl-based repeating unit represented by thefollowing chemical formula 4: chemical formula 4wherein, R15 to R18 are each independently hydrogen or a linear or branched alkyl group having 1 to10 carbon atoms, and y is an integer of 1 to 20. The R18functional group may be bonded to at least one of the remaining 2nd to 6th carbon atoms excluding the 1st carbon atom to which the vinyl-based functional group is bonded in the benzene ring. Examples of a linear or branched alkyl group having 1 to 10 carbon atoms include methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl and the like. The alkyl group may be substituted or unsubstituted, and the term "substituted" means that a hydrogen atom contained in an alkyl group is substituted with a specific functional group. Examples of the substituted functional groups are not particularly limited, and various functional groups or atomic groups widely known in the art, such as halogen, hydroxy group, amino group and the like can be used without limitation. The (meth)acrylic-based repeating unit means a repeating unit derived from a (meth)acrylic monomer, and specifically refers to a repeating unit constituting a polymer formed through polymerization between (meth)acrylic monomers. The (meth)acrylic monomer refers to a compound containing a (meth)acrylic functional group. The specific examples thereof are not particularly limited, but include, for example, a (meth)acrylate compound or a (meth)acrylic acid compound. 2023PF30131-FC -15- More specifically, the (meth)acrylic-based repeating unit may include a repeating unit represented by the following chemical formula 5: chemical formula 5wherein, R21 is hydrogen or methyl group, R22 to R24 are each independently hydrogen or a linear orbranched alkyl group having 1 to 10 carbon atoms, and z is 15 an integer of 1 to 20. Examples of a linear or branched alkyl group having 1 to 10 carbon atoms include methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl and the like. The alkyl group may be substituted or unsubstituted, and the term "substituted" means that ahydrogen atom contained in an alkyl group is replaced with a specific functional group. Examples ofthe substituted functional groups are not particularly limited, and various functional groups or atomic groups widely known in the art, such as halogen, hydroxy group, amino group and the like can be used without limitation. The acrylonitrile-based repeating unit means a repeating unit derived from acrylonitrile or derivatives thereof, in the derivatives, any hydrogen bonded to carbon atom can be independently substituted by a linear or branched alkyl group having 1 to 10 carbon atoms. More specifically, the epoxy group-containing vinyl polymer may include an acrylonitrile-based repeating unit represented by the following chemical formula 6: chemical formula 6 wherein, R1to R3are each independently hydrogen or a linear or branched alkyl group having 1 to 10 carbon atoms, and Y is an integer of 1 to 20. 2023PF30131-FC -16- Examples of a linear or branched alkyl group having 1 to 10 carbon atoms include methyl, ethyl, propyl, isobutyl, sec-butyl, tert-butyl, pentyl, hexyl and the like. The alkyl group may be substituted or unsubstituted, and the term "substituted" means that a hydrogen atom contained in an alkyl group is substituted with a specific functional group. Examples of the substituted functional groups are not particularly limited, and various functional groups or atomic groups widely known in the art, such as halogen, hydroxy group, amino group and the like can be used without limitation. More specifically, the vinyl-based polymer including a (meth)acrylate repeating unit containing an epoxy functional group may include a repeating unit of the chemical formula 3, a repeating unit selected from those of the chemical formula 4, the chemical formula 5, and the chemical formula 6 aforementioned. In some embodiments, the composition of the present invention comprises a vinyl-based polymerincluding a repeating unit of the chemical formula 3, a repeating unit of the chemical formula 4, anda repeating unit of the chemical formula 5, a vinyl-based polymer including a repeating unit of the chemical formula 3, a repeating unit of the chemical formula 4, and a repeating unit of the chemical formula 6, or a combination thereof, preferably R1 to R3, R11 to R18, R21 to R24 are each independently hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms. Preferably, in the vinyl-based polymer including a repeating unit of the chemical formula 3, a repeating unit of the chemical formula 4, and a repeating unit of the chemical formula 5, R11 is hydrogen or methyl group, R12 and R13 are each independently hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, R14 is a linear or branched alkylene group having 1 to 4 carbonatoms, R15 to R18 are each independently hydrogen or a linear or branched alkyl group having 1 to 4carbon atoms, R21 is hydrogen or methyl group, R22 to R24 are each independently hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms. Preferably, in the vinyl-based polymer including a repeating unit of the chemical formula 3, a repeating unit of the chemical formula 4, and a repeating unit of the chemical formula 6, R11 is methyl group,, R12 and R13 are each independently hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, R14 is a linear or branched alkylene group having 1 to 4 carbon atoms, R15 to R18 are each independently hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, R1to R3are each independently hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms. 2023PF30131-FC -17- More specific examples of the vinyl-based polymer including a (meth)acrylate repeating unitcontaining an epoxy functional group include glycidyl methacrylate containing styrene-acrylatecopolymer, such as Joncryl ADR-4370F (epoxy equivalent weight: 285 g / mol), ADR-4468 or thelike, having a weight average molecular weight of 6,800 g / mol, available from BASF, andstyrene - acrylonitrile - glycidyl methacrylate ternary random copolymer, such as Fine-blendTMSAG-005, available from Sunny. Within this invention, the epoxy equivalent weight is determinedaccording to the acetone-hydrochloride method (GB / T 1677-2008).The epoxy group-containing vinyl-based copolymer is present in the composition according to thepresent invention in an amount ranging from 0.05 wt.% to 0.5 wt.%, preferably from 0.05 wt.%to 0.40 wt.%, more preferably from 0.05 wt.% to 0.3 wt. %, relative to the total weight of thecomposition. Component D The polycarbonate compositions according to the present invention comprise glass fibers as component D. The glass fibers may be manufactured from “E-glass”, “A-glass”, “C-glass”, “D-glass”, “R-glass”, or “S-glass” as well as E-glass derivatives that are fluorine-free and / or boron-free. The preferred glass fibers are preferably manufactured from E-glass or C-glass here. The glass fibers can have a diameter of about 3 µm to about 25 µm, specifically about 4 µm to about20 µm, and more specifically about 8 µm to about 18 µm.It is preferable that the length of chopped glass fibres before compounding is from 3 mm to 6 mm.The fiber length of the glass fiber can be measured by photographing the filler with a microscope and measuring the microscope photograph using commercially available image analysis software. A feature of the glass fibres used is that the fibre is selected for its bonding or non-bonding character in interaction with the polycarbonate matrix. Bonding of the glass fibre to the polymer matrix is discernible on low-temperature fracture surfaces in scanning electron micrographs where most of the broken glass fibres have been broken at the same position as the matrix, and only occasional glass fibres protrude from the matrix. In the opposite case of non-bonding character, scanning electronmicrographs of low-temperature fracture show that the glass fibres protrude substantially from thematrix or have been extracted in their entirety. Preferably, the compositions according to the invention comprise non-bonding glass fibres. 2023PF30131-FC -18-Specific examples of non-bonding glass fibers include CS 108F-14P from Owens Corning, or CS03-PE 936 from Owens Corning, or CSF3PE-936 from Nitto Boseki Co. Ltd. the like.The glass fibers are present in the polycarbonate composition in an amount ranging from 2 wt.%to 20 wt.%, preferably from 3 wt.% to 18 wt.%, more preferably from 4 wt.% to 16 wt.%,particularly preferred from 5 wt.% to 15 wt.%, relative to the total weight of the composition. Component E The polycarbonate compositions according to the present invention comprise at least one anti- dripping agent as component E. Preferably, the at least one anti-dripping agent used is selected from fluorinated polyolefins. The fluorinated polyolefins are known (see "Vinyl and Related Polymers" by Schildknecht, John Wiley &Sons, Inc., New York, 1962, pages 484-494; "Fluoropolymers" by Wall, Wiley- Interscience, John Wiley &Sons, Inc., New York, Volume 13, 1970, pages 623-654; "Modern Plastics Encyclopedia" , 1970-1971, Volume 47, No.10 A, October 1970, McGraw-Hill, Inc., New York, pages 134 and 774; "Modern Plastics Encyclopaedia" , 1975-1976, October 1975, Volume52, No. 10 A, McGraw-Hill, Inc., New York, pages 27, 28 and 472 and US-PS 3671487, 3723373 and 3838092). Preferably, the anti-dripping agent is selected from polytetrafluoroethylene, polyvinylidene fluoride, tetrafluoroethylene / hexafluoropropylene copolymer, ethylene / tetrafluoroethylene copolymer, and a combination thereof. More preferably, polytetrafluoroethylene (PTFE) is used as anti-dripping agent. Polytetrafluoroethylene can be used alone or as a master batch with a homopolymer or copolymer of styrene or methyl methacrylate. Polytetrafluoroethylene can be prepared by known processes, for example by polymerization of tetrafluoroethylene in an aqueous medium with a free radical-forming catalyst, for example sodium, potassium or ammonium peroxydisulfate, at pressures of from 7 to 71 kg / cm2and at temperatures of from 0 to 200 °C, preferably at temperatures of from 20 to 100 °C, for further details see e.g. US patent application 2393967 A. Preferably, the fluorinated polyolefins have glass transition temperatures of over -30 °C, generallyover 100 °C, fluorine contents of preferably from 65 to 76 wt. %, in particular from 70 to 76 wt. % 2023PF30131-FC -19- (with the fluorinated polyolefins as 100 wt. %), mean particle diameters d50of from 0.05 to 1,000 μm, preferably from 0.08 to 20 μm.For the purpose of the present invention, the d50 average value of the particle size indicates a particlesize, such that 50 wt.% of the relevant material has a larger particle size and 50 wt.% of the relevant material have a smaller particle size.The d50 average size of the particles in the composition of the present invention can be determinedvia a method known to the person skilled in the art, for example the d50 value of the PTFE polymer particle size is measured via light scattering techniques (dynamic or laser) using the respective equipment, for example available from the companies Malvern (e.g. Mastersizer®Micro or 3000) orCoulter (e.g. LS 230®), as notably described in the method ISO 13320-1, in EP 1279694 A and inWO 2014 / 037375 A1. Laser light scattering, based on the light diffraction on the particles, is asuitable technique that can be applied to this kind of powder for determining particle size distribution. In particular the analysis can be performed on dry powder (for instance using a Coulter LS 13320®instrument) or on the powder suspended into a water solution of apposite dispersant (a suitableapparatus is Coulter LS 230®).Preferably, the fluorinated polyolefins have a density of from 1.2 to 2.3 g / cm3, as measured accordingto the ASTM D1895:2017. More preferably, the fluorinated polyolefins used according to the invention have mean particle diameters of from 0.05 to 20 μm, preferably from 0.08 to 10 μm. Suitable fluorinated polyolefins which can be used in powder form are polytetrafluoroethylene having mean particle diameters of 0.27μm and densities from 2.0 g / cm3to 2.3 g / cm3. As an example of commercial products of polytetrafluoroethylene, mention can be made to those sold under the trade name Teflon®by DuPont. A master batch of polytetrafluoroethylene and styrene-acrylonitrile (SAN) in a weight ratio of 1:1, for example, ADS 5000 available from Chemical Innovation Co., Ltd., and POLYB FS-200 available from Han Nanotech Co., Ltd, can also be used.Advantageously, the anti-dripping agent is present in the polycarbonate composition in an amountranging from 0.06 wt.% to 0.5 wt.%, preferably from 0.08 wt.% to 0.4 wt.%, relative to the totalweight of the composition. 2023PF30131-FC -20- Component F In addition to components A–D mentioned above, the polycarbonate compositions according to the present invention can optionally comprise one or more additives conventionally used in polycarbonate compositions as additional components. Such additives are, for example, UV stabilizers, IR stabilizers, heat stabilizers, antistatic agents, pigments (such as carbon black), colorants, lubricants (such as waxes), demoulding agents (such as pentaerythrityl tetrastearate), antioxidants, flow improvers agents, etc. and combinations thereof. The person skilled in the art can select the type of the additives so as not to adversely affect the desired properties of the polycarbonate composition according to the present invention.In some embodiments, the polycarbonate composition according to the present invention does notcomprise potassium diphenylsulfon-3-sulphonate (KSS).Preferably, the polycarbonate composition according to the present invention comprises thefollowing components A–E,A) from 80 wt.% to 96 wt.% of at least one aromatic polycarbonate, wherein the at least onearomatic polycarbonate is based on bisphenol A;B) from 0.05 wt.% to 0.09 wt.% of at least one fluorine-containing metal organic sulfonate,wherein at least potassium perfluorobutane sulfonate is contained as fluorine-containing metalorganic sulfonate, more preferably the fluorine-containing metal organic sulfonate is potassiumperfluorobutane sulfonate; C) from 0.05 wt.% to 0.3 wt. % of at least one epoxy group-containing vinyl-basedcopolymer, wherein at least one epoxy group-containing vinyl-based copolymer selected fromglycidyl methacrylate containing styrene-acrylate copolymer, styrene - acrylonitrile - glycidylmethacrylate, and a combination thereof is contained; andD) from 4 wt.% to 16 wt.% of a glass fiber;E) from 0.06 wt.% to 0.5 wt.% of an anti-dripping agent, wherein polytetrafluoroethylene iscontained as anti-dripping agent, more preferably the anti-dripping agent is polytetrafluorethylene, wherein the amounts are relative to the total weight of the composition.The inventors have discovered that articles prepared from the compositions can achieve a flameretardancy level of V0 at a thickness of 1.5 mm, even at a low thickness of 1.2 mm, and in someembodiments, even achieve a flame retardancy level of V0 at a low thickness of 1.0 mm, as measuredin accordance with UL94:2015, and have a Izod notched impact strength of at least 10 kJ / m2, asmeasured in accordance with ISO180 / 1A:2000 (23 ^C, 3 mm, 5.5 J). 2023PF30131-FC -21- Preparation of the polycarbonate composition The polycarbonate composition according to the present invention can be in the form of, for example, pellets. The polycarbonate composition according to the present invention demonstrates a good processingbehaviour and can be prepared by a variety of methods involving admixing of the materials desiredin the composition. For example, the materials desired in the composition are first blended in a high speed mixer. Low shear processes, including but not limited to hand mixing, can also accomplish this blending. The blend can then be fed into the throat of a twin-screw extruder via a hopper. Alternatively, at least one of the components can be incorporated into the composition by feeding it directly into the extruder at the throat and / or downstream through a side stuffer. Additives can also be compounded into a masterbatch with a desired polymeric resin and fed into the extruder. The extruder is generally operated at a temperature higher than that necessary to cause the composition to flow. The extrudateis immediately quenched in a water bath and pelletized. The pellets can be about 0.6 cm (one-fourthinch) long or less as described. Such pellets can be used for subsequent molding, shaping or forming.Melt blending methods are preferred due to the availability of melt blending equipment in commercial polymer processing facilities. Illustrative examples of equipment used in such melt processing methods include co-rotating and counter-rotating extruders, single screw extruders, co-kneaders, and various other types of extrusion equipment. The temperature of the melt in the processing is preferably minimized in order to avoid excessivedegradation of the polymers. It is often desirable to maintain the melt temperature between 230 °C and350 °C in the molten resin composition, although higher temperatures can be used provided that theresidence time of the resin in the processing equipment is kept short. Shaped articlesThe polycarbonate compositions according to the present invention can be used, for example, for theproduction of various types of shaped articles.According to the second aspect, the present invention also provides a shaped article made from apolycarbonate composition according to the first aspect of the present invention. 2023PF30131-FC -22- As examples of such shaped articles mention can be made of, for example, films; profiles; all kinds of housing parts, e.g. for domestic appliances such as juice presses, coffee machines and mixers, or for office machines such as monitors, flat screens, notebooks, printers and copiers; sheets; tubes; electrical conduits; windows, doors and other profiles for the building sector (interior and exterior applications); electrical and electronic parts such as switches, plugs and sockets; and body parts or interior trim for commercial vehicles, especially for the motor vehicle sector.Preferably, the shaped article is a housing or part of a housing of electrical or electronics devices,such as printers, copiers, chargers, TV projectors, notebooks, tablets such as ipads, game consoles,battery covers, etc. Preparation of shaped articlesThe polycarbonate compositions according to the present invention can be processed into shapedarticles by a variety of means such as injection moulding, extrusion moulding, blow moulding orthermoforming to form shaped articles.According to the third aspect, the present invention provides a process for preparing a shaped articleaccording to the second aspect of the present invention, comprising injection moulding, extrusionmoulding, blow moulding or thermoforming the polycarbonate composition according to the firstaspect of the present invention. Examples The present invention will be illustrated in detail below with reference to the examples below. The examples are only for the purpose of illustration, rather than limiting the scope of the present invention. Materials used Component A M2800: an aromatic polycarbonate (PC) resin based on bisphenol A, available as Makrolon®2800 from Covestro Polymer, Co., Ltd. PC3105: an aromatic polycarbonate (PC) resin based on bisphenol A, available as Makrolon®3105 from Covestro Polymer, Co., Ltd. Component B C4: Potassium perfluorobutane sulfonate, available as Bayowet C4 from LANXESS. 2023PF30131-FC -23- Component CSAG-005: styrene - acrylonitrile - glycidyl methacrylate ternary random copolymer with an epoxyequivalent weight of 850-920 g / mol, available as Fine-blend SAG-005 supplied by Sunny.ADR4468: glycidyl methacrylate containing styrene-acrylate copolymer with an epoxy equivalentweight of 310 g / mol and a weight average molecular weight of 6,800 g / mol, available as JoncrylADR4468 from BASF. Component DGlass fiber: non-bonded glass fiber with a diameter of 14 µm and a length of 4.5 mm, available as CS108F-14P from Owens Corning.Component EPTFE-SAN masterbatch: A masterbatch comprising anti-dripping agent polytetrafluoroethylene(PTFE) available as ADS5000 from IRPC Public Company Limited, wherein polytetrafluoroethylene(PTFE) is capped by styrene–acrylonitrile copolymer (SAN) with a weight ratio of PTFE: SAN = 1:1, the particle size of PTFE is 0.27µm, the density of PTFE is 2.2 g / ml, and the particle size of PTFE-SAN masterbatch powder is less than 2000 µm.Component FPETS: pentaerythritol tetrastearate, a demolding agent, available as FACI L348 from FACI AsiaPacific Pte Ltd. (Singapore).B900: a mixture of 80 wt.% Irgafos 168 and 20 wt.% Irganox 1076 available from the companyBASF, wherein Irgafos 168 is tris(2,4-di-tert-butylphenyl)phosphite, Irganox 1076 is 2,6-di-tert-butyl-4-((octadecanoxy)-carbonyl)ethyl)-phenol. Test methodsThe physical properties of the compositions according to the examples were tested as follows.Flame retardancyThe flame retardance was evaluated on sample bars with dimensions of 127 mm x 12.7 mm x 1.5 mm,127 mm x 12.7 mm x 1.2 mm, and 127 mm x 12.7 mm x 1.0 mm after conditioned for 48 hours at 23°C and 50% RH according to UL94:2015.Izod notched impact strength Izod notched impact strength was measured on specimens with dimensions of 80 mm ×10 mm ×3 mm according to ISO180 / 1A:2000 (23^C, 3 mm, 5.5J). 2023PF30131-FC -24-Comparative Examples 1-7 (CE.1-CE.7)The materials listed in Table 1 were compounded on a twin-screw extruder (ZSK-26) (Werner andPfleider) at a speed of rotation of 225 rpm, a throughput of 20 kg / h, and a machine temperature of300 °C, and granulated. All parts by weight are calculated according to the material used in allinventive examples and comparative examples.The granules were processed into corresponding test specimens on a 370S type injection mouldingmachine from the company Arburg with a melting temperature of 300 °C, a mold temperature 80 °Cand injection speed of 50 mm / s.The physical properties of compositions obtained were tested and the results were summarized in Table 1. Table 1 Components CE.1 CE.2 CE.3 CE.4 CE.5 CE.6 CE.7Wt.% Wt.% Wt.% Wt.% Wt.% Wt.% Wt.%A M2800 80 80 80 80 80 80 80PC3105 8.52 9.02 9.22 9.34 9.50 9.32 9.32B C4 0.08 0.08 0.08 0.08 0.10 0.08 0.08C ADR 4468 0.2SAG-005 0.2D Glass fiber 10 10 10 10 10 10 10E PTFE-SAN* 1 0.5 0.3 0.18F PETS 0.3 0.3 0.3 0.3 0.3 0.3 0.3B900 0.1 0.1 0.1 0.1 0.1 0.1 0.1Izod notched impact strength 211 10 11 11 14 11 9.8(kJ / m ) UL 94 @1.0mm V2 V1 V1 V2 V2 V1 V2UL 94 @1.2mm V1 V1 V1 V2 V2 V2 V2UL 94 @1.5mm V0 V0 V0 V0 V1 V0 V0PTFE-SAN*: the amount here is for the masterbatch.The compositions of comparative examples 1-4 (CE.1-CE.4) not comprising component C cannotachieve a flame-retardant level of V0 at a thickness of 1.2 mm and 1.0 mm.The composition of comparative example 5 (CE.5) not comprising component C and component E cannot achieve a flame-retardant level of V0 at a thickness of any of 1.5 mm, 1.2 mm and 1.0 mm. 2023PF30131-FC -25-The compositions of comparative examples 6 and 7 (CE.6 and CE.7) not comprising component Ecannot achieve a flame-retardant level of V0 at a thickness of 1.2 mm and 1.0 mm.Inventive Examples 1-8 (IE.1-IE.8)Similarly, the materials listed in Table 2 were compounded, the physical properties of thecompositions obtained were tested and the results were summarized in Table 2.Table 2 Components IE.1 IE.2 IE.3 IE.4 IE.5 IE.6 IE.7 IE.8Wt.% Wt.% Wt.% Wt.% Wt.% Wt.% Wt.% Wt.%A M2800 80 80 80 80 80 80 80 75PC3105 8.92 8.72 9.02 9.24 9.14 8.32 9.18 9.14B C4 0.08 0.08 0.08 0.08 0.08 0.08 0.08 0.08C SAG-005 0.1 0.3 0.2 0.1 0.2 0.2 0.2 0.2D Glass fiber 10 10 10 10 10 10 10 15E PTFE-SAN* 0.5 0.5 0.3 0.18 0.18 1 0.14 0.18F PETS 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3B900 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1Izod notched impact 211 11 11 12 11 12 11 17strength (kJ / m ) UL 94 @1.0mm V0 V0 V1 V1 V0 V2 V2 V1UL 94 @1.2mm V0 V0 V0 V0 V0 V0 V0 V0UL 94 @1.5mm V0 V0 V0 V0 V0 V0 V0 V0PTFE-SAN*: the amount here is for the masterbatch.The compositions of inventive examples 1-8 (IE.1-IE.8) are compositions according to the presentinvention, demonstrate an Izod notched impact strength of 10 kJ / m2 or above and a flame-retardantlevel of V0 at a thickness of 1.5 mm and 1.2 mm, and the compositions of inventive examples 1, 2 and4 (IE.1, IE.2 and IE.4) even achieve a flame-retardant level of V0 at a thickness of 1.0 mm.Inventive Examples 9-14 (IE.9-IE.14)Similarly, the materials listed in Table 3 were compounded, the physical properties of thecompositions obtained were tested and the results were summarized in Table 3. 2023PF30131-FC -26- Table 3 Components IE.9 IE.10 IE.11 IE.12 IE.13 IE.14Wt.% Wt.% Wt.% Wt.% Wt.% Wt.%A M2800 80 80 80 80 80 80PC3105 8.97 8.92 8.82 9.17 9.12 9B C4 0.08 0.08 0.08 0.08 0.08 0.05C ADR4468 0.05 0.1 0.2 0.05 0.1 0.05D Glass fiber 10 10 10 10 10 10E PTFE-SAN* 0.5 0.5 0.5 0.3 0.3 0.5F PETS 0.3 0.3 0.3 0.3 0.3 0.3B900 0.1 0.1 0.1 0.1 0.1 0.12 Izod notched impact strength (kJ / m) 12 12 10 11 12 11UL 94 @1.0mm V1 V0 V1 V0 V0 V1UL 94 @1.2mm V0 V0 V0 V0 V0 V0UL 94 @1.5mm V0 V0 V0 V0 V0 V0PTFE-SAN*: the amount here is for the masterbatch.The compositions of inventive examples 9-14 (IE.9-IE.14) are compositions according to the presentinvention, demonstrate an Izod notched impact strength of 10 kJ / m2 or above and a flame-retardantlevel of V0 at a thickness of 1.5 mm and 1.2 mm, and the compositions of inventive examples 10, 12and 13 (IE.10, IE.12 and IE.13) even achieve a flame-retardant level of V0 at a thickness of 1.0 mm.Inventive Examples 15-20 (IE.15-IE.20)Similarly, the materials listed in Table 4 were compounded, the physical properties of thecompositions obtained were tested and the results were summarized in Table 4. Table 4 Components IE.15 IE.16 IE.17 IE.18 IE.19 IE.20Wt.% Wt% Wt.% Wt.% Wt.% Wt%A M2800 80 80 80 80 75 85PC3105 9.24 9.14 8.85 8.32 9.24 8.82B C4 0.08 0.08 0.05 0.08 0.08 0.08C ADR4468 0.1 0.2 0.2 0.2 0.1 0.2D Glass fiber 10 10 10 10 15 5E PTFE-SAN* 0.18 0.18 0.5 1 0.18 0.5F PETS 0.3 0.3 0.3 0.3 0.3 0.3B900 0.1 0.1 0.1 0.1 0.1 0.1 2023PF30131-FC -27- 2 Izod notched impact strength (kJ / m) 11 10 10 10 16 12UL 94 @1.0mm V0 V2 V2 V1 V2 V2UL 94 @1.2mm V0 V0 V0 V0 V0 V0UL 94 @1.5mm V0 V0 V0 V0 V0 V0PTFE-SAN*: the amount here is for the masterbatch.The compositions of inventive examples 15-20 (IE.15-IE.20) are compositions according to the2 present invention, demonstrate an Izod notched impact strength of 10 kJ / mor above and a flame-retardant level of V0 at a thickness of 1.5 mm and 1.2 mm, and the composition of inventive example 15 (IE.15) even achieve a flame-retardant level of V0 at a thickness of 1.0 mm.Comparative Examples 8-13 (CE.8-CE.13)Similarly, the materials listed in Table 5 were compounded, the physical properties of thecompositions obtained were tested and the results were summarized in Table 5. Table 5 Components CE.8 CE.9 CE.10 CE.11 CE.12 CE.13Wt.% Wt.% Wt.% Wt.% Wt.% Wt.%A M2800 80 80 80 80 75 85PC3105 9.22 9.22 9 8.87 9.02 9.02B C4 0.08 0.08 0.08 0.03 0.08 0.08C ADR 4468 0.2 0.02SAG-005 0.2 0.2D Glass fiber 10 10 10 10 15 5E PTFE-SAN* 0.1 0.1 0.5 0.5 0.5 0.5F PETS 0.3 0.3 0.3 0.3 0.3 0.3B900 0.1 0.1 0.1 0.1 0.1 0.1Izod notched impact 211 9.5 11 11 18 13strength (kJ / m ) UL 94 @1.0mm V2 V2 V2 FAIL FAIL V2UL 94 @1.2mm V1 V1 V1 V2 FAIL V1UL 94 @1.5mm V0 V0 V0 V1 FAIL V1PTFE-SAN*: the amount here is for the masterbatch.The compositions of comparative examples 8 and 9 (CE.8 and CE.9) comprising less than 0.06 wt% ofpure PTFE (0.05 wt% for pure PTFE in CE.8 and CE.9) cannot achieve a flame-retardant level of V0at a thickness of 1.2 mm and 1.0 mm. 2023PF30131-FC -28-The composition of comparative example 10 (CE.10) comprising less than 0.06 wt% of component Ccannot achieve a flame-retardant level of V0 at a thickness of 1.2 mm and 1.0 mm. The composition of comparative example 11 (CE.10) comprising less than 0.05 wt% of component B cannot achieve a flame-retardant level of V0 at a thickness of 1.2 mm and 1.0 mm.The compositions of comparative examples 12 and 13 (CE.12 and CE.13) not comprising componentC cannot achieve a flame-retardant level of V0 at a thickness of any of 1.5 mm, 1.2 mm, and 1.0 mm.In summary, the addition of small amount of epoxy group-containing vinyl-based copolymer andflame-retardant agents in glass fiber reinforced polycarbonate compositions can lead to unexpectedimprovement of flame-retardant performance without scarifying other mechanical properties such asIzod notched impact strength. The polycarbonate compositions according to the present invention canmeet REACH regulations and electrical housing materials’ requirements on the flame-retardant level.

Claims

2023PF30131-FC -29- Claims1. A thermoplastic polycarbonate composition comprising the following components A-E:A) from 78 wt.% to 97 wt.% of an aromatic polycarbonate;B) from 0.05 wt.% to 0.09 wt.% of a fluorine-containing metal organic sulfonate; C) from 0.05 wt.% to 0.5% of an epoxy group-containing vinyl-based copolymer;D) from 2 wt.% to 20 wt.% of a glass fiber; andE) from 0.06 wt.% to 0.5 wt.% of an anti-dripping agent,wherein the amounts are relative to the total weight of the composition.

2. Composition according to claim 1, wherein the metal in the fluorine-containing metal organicsulfonate is one or more selected from alkali metals such as lithium (Li), sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs); alkali earth metals such as magnesium (Mg), calcium (Ca), strontium(Sr) and barium (Ba); and aluminum (Al), titanium (Ti), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu),zinc (Zn), zirconium (Zr), molybdenum (Mo).

3. Composition according to claim 1 or 2, wherein the fluorine-containing metal organic sulfonate isselected from metal salts of fluorine-containing aliphatic sulfonic acid.

4. Composition according to any of claims 1-3, wherein the fluorine-containing metal organic sulfonate is selected from potassium perfluorobutane sulfonate, lithium perfluorobutane sulfonate, sodiumperfluorobutane sulfonate, cesium perfluorobutane sulfonate, lithium trifluoromethane sulfonate,sodium trifluoromethane sulfonate, potassium trifluoromethane sulfonate, potassium perfluoroethane sulfonate, potassium perfluoropropane sulfonate, and combinations thereof.

5. Composition according to any of claims 1-4, wherein the epoxy group-containing vinyl-basedcopolymer includes a repeating unit represented by the following chemical formula 3chemical formula 3wherein, R11 is hydrogen or methyl group, R12 and R13 are each independently hydrogen or a linear orbranched alkyl group having 1 to 10 carbon atoms, R14 is a linear or branched alkylene group having 12023PF30131-FC -30- to 10 carbon atoms, and x is an integer of 1 to 20.

6. Composition according to claim 5, wherein the epoxy group-containing vinyl-based polymer furtherincludes at least one of (i)-(iii):(i) a repeating unit represented by the following chemical formula 4:chemical formula 4 wherein, R15 to R18 are each independently hydrogen or a linear or branched alkyl group having 1 to 10 carbon atoms, and y is an integer of 1 to 20; (ii) a repeating unit represented by the following chemical formula 5:chemical formula 5 wherein, R21is hydrogen or methyl group, R22to R24are each independently hydrogen or alinear or branched alkyl group having 1 to 10 carbon atoms, and z is 15 an integer of 1 to 20;(iii) a repeating unit represented by the following chemical formula 6:chemical formula 6 wherein, R1to R3are each independently hydrogen or a linear or branched alkyl group having 1 to 102023PF30131-FC -31- carbon atoms, and Y is an integer of 1 to 20.

7. Composition according to claim 6, wherein the composition comprises a vinyl-based polymer including a repeating unit of the chemical formula 3, a repeating unit of the chemical formula 4, and a repeating unit of the chemical formula 5; a vinyl-based polymer including a repeating unit of the chemical formula 3, a repeating unit of the chemical formula 4, and a repeating unit of the chemicalformula 6; or a combination thereof, preferably R1 to R3, R12 to R18, R22 to R24 are each independentlyhydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, R11 and R21 is hydrogen ormethyl group, more preferably the epoxy group-containing vinyl-based copolymer is selected fromglycidyl methacrylate containing styrene-acrylate copolymer, styrene - acrylonitrile - glycidylmethacrylate, and a combination thereof.

8. Composition according to any of claims 1-7, wherein the epoxy group-containing vinyl-based copolymer has a weight average molecular weight of 1,000g / mol to 10,000 g / mol, as determined by GPC method with polystyrene as standard.

9. Composition according to any of Claims 1-8, wherein the epoxy group-containing vinyl-based copolymer has an epoxy equivalent weight of 100 g / mol to 1500g / mol, preferably 200 g / mol to 1200g / mol as determined according to the acetone-hydrochloride method (GB / T 1677-2008).

10. Composition according to any of Claims 1-9, wherein the epoxy group-containing vinyl-basedcopolymer is present in an amount ranging from 0.05 wt.% to 0.40 wt.%, preferably from 0.05 wt.%to 0.3 wt. %, relative to the total weight of the composition.

11. Composition according to any of Claims 1-10, wherein the glass fibers have a length of from 3 mmto 6 mm, preferably, the glass fibers are non-bonding glass fibers.

12. Composition according to any of Claims 1-11, wherein the glass fibers are present in an amountranging from 3 wt.% to 18 wt.%, preferably from 4 wt.% to 16 wt.%, relative to the total weight of the composition.

13. Composition according to any of Claims 1-12, wherein the anti-dripping agent is selected frompolytetrafluoroethylene, polyvinylidene fluoride, tetrafluoroethylene / hexafluoropropylene copolymer,ethylene / tetrafluoroethylene copolymer, and a combination thereof.2023PF30131-FC -32-14. Composition according to claim 1 comprising the following components A-E:A) from 80 wt.% to 96 wt.% of at least one aromatic polycarbonate, wherein the at least onearomatic polycarbonate is based on bisphenol A;B) from 0.05wt.% to 0.09 wt.% of at least one fluorine-containing metal organic sulfonate, wherein at least potassium perfluorobutane sulfonate is contained as fluorine-containing metal organicsulfonate, more preferably the fluorine-containing metal organic sulfonate is potassium perfluorobutanesulfonate; C) from 0.05 wt.% to 0.3 wt. % of at least one epoxy group-containing vinyl-based copolymer,wherein at least one epoxy group-containing vinyl-based copolymer selected from glycidyl methacrylatecontaining styrene-acrylate copolymer, styrene - acrylonitrile - glycidyl methacrylate, and acombination thereof is contained; andD) from 4 wt.% to 16 wt.% of a glass fiber; E) from 0.06 wt.% to 0.5 wt.% of an anti-dripping agent, wherein polytetrafluoroethylene is contained as anti-dripping agent, more preferably the anti-dripping agent is polytetrafluorethylene, wherein the amounts are relative to the total weight of the composition.

15. A shaped article made from the composition according to any of claims 1 to 14.

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