MULTILAYER COMPOSITE MATERIAL CONTAINING SPECIAL POLYCARBONATE COMPOSITIONS AS A MATRIX MATERIAL

Abstract

Multilayer composite material comprising specific polycarbonate compositions as matrix material The present invention relates to a composite material comprising one or more fibre layers composed of a fibre material and an aromatic polycarbonate-based matrix material. The fibre layer(s) is/are embedded in the matrix material. The present invention further relates to a process for producing these fibre composite materials, to multilayer composite materials comprising several layers of fibre composite material, and to the use of the composite materials for production of components or housing components or housings, and to the components, housing components or housings themselves.

Claims

1.-14. (canceled)

15. A process for producing a layer of fibre composite material, wherein a molten, aromatic polycarbonate-based composition comprising A) aromatic polycarbonate, B) 1% by weight to 14% by weight of talc, C) 7% by weight to 15% by weight of at least one cyclic phosphazene of formula (1) ##STR00023## where R is the same or different and is an amine radical, an in each case optionally halogenated C.sub.1- to C.sub.8-alkyl radical, C.sub.1- to C.sub.8-alkoxy radical, in each case optionally alkyl- and/or halogen-substituted C.sub.5- to C.sub.6-cycloalkyl radical, in each case optionally alkyl- and/or halogen- and/or hydroxyl-substituted C.sub.6- to C.sub.20-aryloxy radical, in each case optionally alkyl- and/or halogen-substituted C.sub.7- to C.sub.12-aralkyl radical or a halogen radical or an OH radical, k is an integer from 1 to 10, D) 0% to 11% by weight of at least one phosphorus compound of the general formula (V) ##STR00024## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a C.sub.1- to C.sub.8-alkyl radical, in each case optionally halogenated and in each case branched or unbranched, and/or C.sub.5- to C.sub.6-cycloalkyl radical, C.sub.6- to C.sub.20-aryl radical or C.sub.7- to C.sub.12-aralkyl radical, in each case optionally substituted by branched or unbranched alkyl and/or halogen, n is independently 0 or 1, q is an integer from 0 to 30, X is a mono- or polycyclic aromatic radical having 6 to 30 carbon atoms or a linear or branched aliphatic radical having 2 to 30 carbon atoms, each of which may be substituted or unsubstituted, and bridged or unbridged; E) 0% to 0.2% by weight of at least one stabilizer selected from the group consisting of alkyl phosphate, ethylenediaminetetraacetic acid and citric acid, F) optionally further additives, wherein the composition is free of PTFE, is applied to a raw fibre tape composed of fibre material that has been preheated to above the glass transition temperature of the polycarbonate.

16. A process for producing a multilayer composite material, comprising the following steps: providing at least one inner layer of fibre composite material and two outer layers of fibre composite material, wherein the individual layers of fibre composite material are produced by applying a molten, aromatic polycarbonate-based composition comprising A) aromatic polycarbonate, B) 1% by weight to 14% by weight of talc, C) 7% by weight to 15% by weight of at least one cyclic phosphazene of formula (1) ##STR00025## where R is the same or different and is an amine radical, an in each case optionally halogenated C.sub.1- to C.sub.8-alkyl radical, C.sub.1- to C.sub.8-alkoxy radical, in each case optionally alkyl- and/or halogen-substituted C.sub.5- to C.sub.6-cycloalkyl radical, in each case optionally alkyl- and/or halogen- and/or hydroxyl-substituted C.sub.6- to C.sub.20- aryloxy radical, in each case optionally alkyl- and/or halogen-substituted C.sub.7- to C.sub.12-aralkyl radical or a halogen radical or an OH radical, k is an integer from 1 to 10, D) 0% to 11% by weight of at least one phosphorus compound of the general formula (V) ##STR00026## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a C.sub.1- to C.sub.8-alkyl radical, in each case optionally halogenated and in each case branched or unbranched, and/or C.sub.5- to C.sub.6-cycloalkyl radical, C.sub.6- to C.sub.20-aryl radical or C.sub.7- to C.sub.12-aralkyl radical, in each case optionally substituted by branched or unbranched alkyl and/or halogen, n is independently 0 or 1, q is an integer from 0 to 30, X is a mono- or polycyclic aromatic radical having 6 to 30 carbon atoms or a linear or branched aliphatic radical having 2 to 30 carbon atoms, each of which may be substituted or unsubstituted, and bridged or ; E) 0% to 0.2% by weight of at least one stabilizer selected from the group consisting of alkyl phosphate, ethylenediaminetetraacetic acid and/or citric acid, F) optionally further additives, wherein the composition is free of PTFE, to a raw fibre tape composed of fibre material that has been preheated to above the glass transition temperature of the polycarbonate, layering the layers of fibre composite material in the desired orientation relative to one another, based on the orientation of the fibre material, bonding the layered layers of fibre composite material to form the multilayer composite material.

17. The process according to claim 15, wherein the composition is applied to the raw fibre tape under pressure-shear vibration.

18. The process according to claim 15, wherein the fibre material is selected from the group consisting of carbon fibres, glass fibres, basalt fibres and mixtures thereof and comprises endless fibres, a weave or a knit.

19. The process according to claim 15, wherein the fibre material are endless fibres and the endless fibres are aligned unidirectionally.

20. The process according to claim 15, wherein the composition comprises 3% to 12% by weight of talc, 10% to 13% by weight of phosphazene as per component C and 2% to 10% by weight of at least one phosphorus compound of the general formula (V) as per component D.

21. The process according to claim 16, wherein the inner layers of fibre composite material have essentially the same orientation and the orientation thereof relative to the outer layers of fibre composite material is rotated by 30° to 90°, wherein the orientation of one layer of fibre composite material is determined by the orientation of the unidirectionally aligned fibres present therein.

22. The multilayer composite material according to claim 16, wherein at least some of the layers have the same orientation and at least some other layers are rotated by 30° to 90° and the outer layers are at a 0° orientation with respect thereto.

23. The multilayer composite material according to claim 16, wherein the inner layers have the same orientation and the orientations thereof relative to the outer layers of fibre composite material are rotated by 30° to 90°.

24. The multilayer composite material according to claim 16, wherein the fibre volume content of the outer layers of fibre composite material is not more than 50% by volume, based on the volume of the outer layers of fibre composite material.

Description

[0323] Further details and advantages of the invention will be apparent from the description which follows of the accompanying illustration showing preferred embodiments. The drawings show:

[0324] FIG. 1 a schematic and perspective diagram of a multilayer composite material composed of three superposed layers of fibre composite material with enlarged detail, wherein the inner layer is rotated by 90° relative to the outer layers of fibre composite material,

[0325] FIG. 2 a schematic and perspective diagram of a multilayer composite material composed of five superposed layers of fibre composite material, wherein the inner layers have the same orientation and their orientations are rotated by 90° relative to the outer layers of fibre composite material,

[0326] FIG. 3a a schematic and perspective diagram of a multilayer composite material composed of six superposed layers of fibre composite material, wherein the inner layers have the same orientation and their orientations are rotated by 90° relative to the outer layers of fibre composite material,

[0327] FIG. 3b a schematic and perspective diagram of a multilayer composite material composed of three superposed layers of fibre composite material, wherein the inner layer has a greater thickness than the sum of the two outer layers. The thickness ratio of the inner layer to the sum total of the two outer layers is the same as the thickness ratio of the sum of all inner layers to the sum of the two outer layers of the multilayer composite material from FIG. 3a,

[0328] FIG. 4a a schematic and perspective diagram of a multilayer composite material composed of three superposed layers of fibre composite material and an additional material layer on an outer layer of fibre composite material,

[0329] FIG. 4b a schematic and perspective diagram of a multilayer composite material composed of three superposed layers of fibre composite material and two additional inner further material layers, for example plastics layers, wherein an inner further material layer is disposed between each outer layer of fibre composite material and the inner layer of fibre composite material.

[0330] FIG. 1 shows a detail of a multilayer composite material 1 composed of three superposed layers of fibre composite material 2, 3, wherein the inner layer of fibre composite material 2 is rotated by 90° relative to the outer layers 3 of fibre composite material. The enlarged detail in FIG. 1 shows that each of the layers 2, 3 of the multilayer composite material comprises endless fibres 4 which are unidirectionally aligned within the respective layer and are embedded in polycarbonate-based plastic 5. The orientation of the respective layer of fibre composite material 2, 3 is determined by the orientation of the unidirectionally aligned endless fibres 4 present therein. The endless fibres 4 extend over the entire length/width of the multilayer composite material. The layers 2, 3 are uniformly bonded to one another.

[0331] The multilayer composite material 1 as per FIG. 2 is composed of five superposed layers of fibre composite material 2, 3, wherein the inner layers of fibre composite material 2 have the same orientation and their orientation relative to the outer layers of fibre composite material 3 is rotated by 90°.

[0332] The multilayer composite material 1 as per FIG. 3a is composed of six superposed layers of fibre composite material 2, 3, wherein the inner layers of fibre composite material 2 have the same orientation and their orientation relative to the outer layers of fibre composite material 3 is rotated by 90°.

[0333] FIG. 3b shows a multilayer composite material 1 composed of three superposed layers of fibre composite material 2, 3, wherein the inner layer 2 has a greater thickness than the sum of the two outer layers 3. FIG. 4a shows the multilayer composite material 1 composed of three superposed layers of fibre composite material 2, 3 as described for FIG. 1 but with an additional further outer material layer 6 atop one of the outer layers of fibre composite material 3. The outer material layer 6 may for example comprise one or more fibre-free plastics layers and/or a thin facing, for example a paint layer or a veneer.

[0334] FIG. 4b shows a multilayer composite material 1 composed of three superposed layers of fibre composite material 2, 3 as described for FIG. 1 but with two additional further inner material layers 7, wherein a respective inner further material layer 7 is located between one of the outer layers 3 of fibre composite material and the inner layer 2 of fibre composite material respectively. The further inner material layers 7 may have an identical or different construction and may comprise for example one or more fibre-free plastics layers.

[0335] Working Examples

[0336] There follows a detailed description of the invention with reference to working examples, and the methods of determination described here are employed for all corresponding parameters in the present invention, in the absence of any statement to the contrary.

[0337] Starting Materials: [0338] A-1: Makrolon® 3100 from Covestro Deutschland AG. [0339] A-2: Makrolon® 3108 powder from Covestro Deutschland AG. Linear polycarbonate based on bisphenol A having a melt volume flow rate MVR of 6 cm.sup.3/(10 min) (as per ISO 1133:2012-03, at a test temperature of 300° C. and 1.2 kg load). [0340] A-3: Makrolon® 2400 from Covestro Deutschland AG. Linear polycarbonate based on bisphenol A having a melt volume flow rate MVR of 19 cm.sup.3/(10 min) (as per ISO 1133:2012-03, at a test temperature of 300° C. and 1.2 kg load). [0341] A-4: Makrolon® 2408 powder from Covestro Deutschland AG. Linear polycarbonate based on bisphenol A having a melt volume flow rate MVR of 19 cm.sup.3/(10 min) (as per ISO 1133:2012-03, at a test temperature of 300° C. and 1.2 kg load). [0342] A-5: Makrolon® 2800 from Covestro Deutschland AG. Linear polycarbonate based on bisphenol A having a melt volume flow rate MVR of 9 cm.sup.3/(10 min) (as per ISO 1133:2012-03, at a test temperature of 300° C. and 1.2 kg load). [0343] A-6: Linear copolycarbonate formed from bisphenol A and 23.5% by weight of 4,4′-dihydroxybiphenyl with a melt volume flow rate MVR of 8.3 cm.sup.3/10 min (according to ISO 1133:2012-03, at a test temperature of 300° C. and 1.2 kg load) and with a molecular weight M.sub.w=24800 g/mol, M.sub.n=11600 g/mol, determined by means of gel permeation chromatography (calibration with linear BPA polycarbonate, dichloromethane solvent). [0344] B: HTP Ultra 5 c talc from IMI Fabi S.p.A., Italy. [0345] C: Rabitle FP-110 phenoxyphosphazene from Fushimi Pharmaceutical, Japan. [0346] D: Bisphenol A bis(diphenylphosphate) from Remy GmbH & Co. KG, Germany. [0347] E-1: citric acid from Lanxess AG, Leverkusen. [0348] E-2: triisooctyl phosphate (TOF) from Lanxess AG, Leverkusen. [0349] E-3: Trilon BS ethylenediaminetetraacetic acid from BASF, Ludwigshafen. [0350] F: potassium perfluorobutanesulphonate from Lanxess AG, Leverkusen. [0351] Fibres: Pyrofil TRH50 60M carbon fibres from Mitsubishi Rayon Co., Ltd. having an individual filament diameter of 7 μm, a density of 1.81 g/cm.sup.3 and a tensile modulus of 250 GPa. 60000 individual filaments are supplied in a roving as an endless spool.

[0352] Preparation of the Compositions

[0353] The polycarbonate compositions described in the examples which follow were produced by compounding in an Evolum EV32HT extruder from Clextral (France) with a screw diameter of 32 mm. The screw set used was L7-8.2 at a throughput of 40-70 kg/h. The speed was 200-300 rpm at a melt temperature of 240-320° C. (according to the composition).

[0354] The pellets of the test formulations detailed were dried in a Labotek DDM180 dry air dryer at 80° C. for 4 hours.

[0355] Production of the Layers of the Fibre Composite Material/the Multilayer Composite Material:

[0356] Production of a Fibre Composite Material Layer

[0357] The fibre composite material layers were produced in an experimental setup as described in DE 10 2011 005 462 B3.

[0358] The rovings of the above-described fibres were rolled out with constant spool tension from a creel and spread out by means of a spreading apparatus to give a raw fibre tape of individual filaments of width 60 mm in a torsion-free manner.

[0359] The raw fibre tape was heated to a temperature above the glass transition temperature of the respective pellets.

[0360] The pellets of the respective experimental formulations were melted in an Ecoline 30×25d extruder from Maschinenbau Heilsbronn GmbH and conducted through melt channels to slot dies arranged above and below and transverse to the running direction of the fibre tape. The temperature in the melt zones of the extruder was about 280° C. to 300° C. After emerging from the slot dies, the respective melt encountered the heated raw fibre tape, with contact of the raw fibre tape with the melt on both sides. The raw fibre tape that had been contacted with melt, having been heated further by means of a permanently heated plate, was transported to vibration shoes that were again heated. By means of pressure-shear vibration by means of the vibration shoe as described in DE 10 2011 005 462 B3, the respective melts were introduced into the raw fibre tape. The result was fibre composite material layers of width 60 mm which, after passing through chill rolls, were rolled up.

[0361] Assembly of the Fibre Composite Material Layers—Part 1

[0362] The composite material layers of width 60 mm were welded at their edges by means of an experimental setup as described in DE 10 2011 090 143 A 1 to give broader tapes of width 480 mm, with all individual filaments still arranged in the same direction. The consolidated composite material layers were rolled up again.

[0363] Some of the assembled tapes from part 1 were subdivided into square sections orthogonally to the fibre orientation with a guillotine.

[0364] Assembly of the Fibre Composite Material Layers—Part 2

[0365] These square sections were consolidated at their original outer edges with a sealing bar to give a continuous composite material layer, and this process resulted in a fibre-reinforced composite material layer in which the orientation for all filaments was the same and was rotated by 90° in relation to the roll-off direction of the composite material layer. The composite material layer that had been consolidated in this way was rolled up.

[0366] Production of the Organosheets

[0367] All the organosheets examined hereinafter consisted of 4 fibre composite material layers, with 2 outer fibre composite material layers having the same fibre orientation and 2 inner fibre composite material layers having the same fibre orientation, the fibre orientation of the inner fibre composite material layers having been rotated by 90° in relation to the fibre orientation of the outer fibre composite material layers.

[0368] For this purpose, fibre composite material layers having corresponding orientation were rolled out and laid one on top of another in the sequence described above. Thereafter, the stack was supplied to a PLA 500 interval heating press from BTS Verfahrenstechnik GmbH and pressed at a temperature above the glass transition temperature of the impregnation formulations to give an organosheet.

[0369] The pressure applied across the surface here was 10 bar. The temperature in the heating zone was 280° C. and the temperature in the cooling zone was 100° C. In addition, the advance rate per cycle was 30 mm and the cycle time was 10 sec.

[0370] This resulted in samples having total thicknesses of 0.7 mm and 0.8 mm. The fibre composite material layers used for production of the organosheets accordingly had thicknesses of 175 μm and 200 μm. The fibre volume content of the fibre composite material layers was about 50% by volume per individual layer.

[0371] The organosheets thus produced were used to prepare samples with a Mutronic Diadisc 5200 tabletop circular saw. This involved preparing samples parallel to the fibre orientation in the outer layers, referred to hereinafter as 0° orientation, and transverse to the fibre orientation in the outer layers, referred to hereinafter as 90° orientation.

[0372] Methods:

[0373] Melt volume flow rate (MVR) was determined according to ISO 1133:2012-03 (predominantly at a test temperature of 300° C., mass 1.2 kg) using a Zwick 4106 instrument from Zwick Roell.

[0374] Melt viscosity was determined in accordance with ISO 11443:2005 with a Gottfert Visco-Robo 45.00 instrument.

[0375] Molecular weight Mw and Mn of the polycarbonate used was determined by means of gel permeation chromatography using a BPA polycarbonate calibration (method from Currenta GmbH & Co. OHG, Leverkusen: PSS SECcurity System; dichloromethane as eluent, column 1 (PL-PC5) with a concentration of 2 WI, flow rate 1.0 ml/min at a temperature of 30° C. using UV and/or RI detection). Polydispersity U is calculated as follows:

[00002]$U=\frac{\mathrm{Mw}}{\mathrm{Mn}}-1.$

[0376] The thickness of the multilayer composite materials that result after joining was determined using a commercially available micrometer. The result reported is the arithmetic mean of 5 individual measurements at different positions.

[0377] The fire characteristics were measured according to UL94 V on bars of dimensions 127 mm×12.7 mm x organosheet thickness [mm]. For this purpose, multilayer composite materials composed of four layers of fibre composite material were analysed. The fibre material was unidirectionally oriented carbon fibres as described above.

[0378] “n.d.” means “not determined” in each case.

[0379] Compositions and Results:

TABLE-US-00001 TABLE 1 Comparative examples Formulation CE1 CE2 CE3 CE4 A-1 % by wt. 58.00 60.00 60.00 60.00 A-2 % by wt. 20.00 20.00 19.80 19.40 B % by wt. 10.00 10.00 10.00 10.00 C % by wt. 5.00 5.00 5.00 5.00 D % by wt. 7.00 5.00 5.00 5.00 F % by wt. 0.20 0.60 Tests M.sub.n g/mol n.d. 8411 9339 9421 M.sub.w g/mol n.d. 22239 23784 23735 U n.d. 1.64 1.55 1.52 MVR (300° C., 1.2 kg) cm.sup.3/(10 min) n.d. 118.8* 67.2 55.8 Melt viscosity at 280° C. eta 50 Pa .Math. s n.d. 106 122 147 eta 100 Pa .Math. s 105 120 145 eta 200 Pa .Math. s 101 117 140 eta 500 Pa .Math. s 95 109 134 eta 1000 Pa .Math. s 85 98 117 eta 1500 Pa .Math. s 78 89 105 eta 5000 Pa .Math. s 52 60 65 Melt viscosity at 300° C. eta 50 Pa .Math. s n.d. n.d. n.d. 75 eta 100 Pa .Math. s 74 eta 200 Pa .Math. s 73 eta 500 Pa .Math. s 70 eta 1000 Pa .Math. s 66 eta 1500 Pa .Math. s 62 eta 5000 Pa .Math. s — Melt viscosity at 320° C. eta 50 Pa .Math. s n.d. n.d. n.d. 40 eta 100 Pa .Math. s 40 eta 200 Pa .Math. s 39 eta 500 Pa .Math. s 38 eta 1000 Pa .Math. s 38 eta 1500 Pa .Math. s 36 eta 5000 Pa .Math. s — UL94V (organosheet, 0.8 mm, 0°) (48 h, 23° C.) V1 V1 V1 n.d. (7 d, 70° C.) n.d. V1 V1 n.d. Overall assessment n.d. V1 V1 n.d. UL94V (organosheet, 0.8 mm, 90°) (48 h, 23° C.) V1 V1 V1 V1 (7 d, 70° C.) n.d. n.d. V1 V1 Overall assessment n.d. n.d. V1 V1 *test result inaccurate owing to the high MVR

TABLE-US-00002 TABLE 2 Comparative examples Formulation CE5 CE6 A-1 % by wt. 63.00 58.00 A-2 % by wt. 20.00 20.00 B % by wt. 10.00 10.00 C % by wt. D % by wt. 7.00 12.00 Tests M.sub.n of pellets g/mol 9116 8381 M.sub.w of pellets g/mol 25718 24945 U of pellets 1.82 1.98 MVR (300° C., 1.2 kg) cm.sup.3/(10 min) 44.5 72.8 MVR (270° C., 1.2 kg) cm.sup.3/(10 min) 18.7 30.8 Melt viscosity at 260° C. eta 50 Pa .Math. s 941 282 eta 100 Pa .Math. s 849 257 eta 200 Pa .Math. s 726 240 eta 500 Pa .Math. s 532 212 eta 1000 Pa .Math. s 381 182 eta 1500 Pa .Math. s 293 158 eta 5000 Pa .Math. s 122 84 Melt viscosity at 280° C. eta 50 Pa .Math. s 262 174 eta 100 Pa .Math. s 251 170 eta 200 Pa .Math. s 238 158 eta 500 Pa .Math. s 204 140 eta 1000 Pa .Math. s 173 119 eta 1500 Pa .Math. s 153 107 eta 5000 Pa .Math. s 86 67 Melt viscosity at 300° C. eta 50 Pa .Math. s 199 78 eta 100 Pa .Math. s 197 77 eta 200 Pa .Math. s 188 75 eta 500 Pa .Math. s 170 72 eta 1000 Pa .Math. s 143 68 eta 1500 Pa .Math. s 124 65 eta 5000 Pa .Math. s 73 40 UL94V on (organosheet, 0.7 mm, 90°) (48 h, 23° C.) V1 V1 (7 d, 70° C.) V0 V0 Overall assessment V1 V1

TABLE-US-00003 TABLE 3 Examples according to the invention Formulation IE1 IE2 IE3 IE4 IE5 IE6 IE7 IE8 IE9 IE10 IE11 IE12 A-1 % by wt. 52.90 58.00 51.00 58.00 50.00 60.00 57.00 A-2 % by wt. 20.00 20.00 20.00 20.00 20.00 20.00 20.00 A-3 % by wt. 52.90 57.90 58.00 60.00 A-4 % by wt. 20.00 20.00 20.00 20.00 20.00 A-6 % by wt. 59.90 B % by wt. 10.00 5.00 12.00 10.00 10.00 10.00 10.00 10.00 5.00 5.00 3.00 5.00 C % by wt. 10.00 10.00 10.00 10.00 10.00 10.00 13.00 10.00 10.00 10.00 10.00 8.00 D % by wt. 7.00 7.00 7.00 2.00 10.00 7.00 7.00 7.00 7.00 7.00 E-1 % by wt. 0.10 0.10 0.10 0.10 Tests M.sub.n of pellets g/mol 11242 10557 8697 9287 8373 10336 9908 n.d. n.d. n.d. n.d. 9393 M.sub.w of pellets g/mol 31348 30766 27314 26811 26917 28430 28137 n.d. n.d. n.d. n.d. 23686 U of pellets 1.79 1.91 2.14 1.89 2.21 1.75 1.84 n.d. n.d. n.d. n.d. 1.52 U of fibre composite 1.77 1.95 n.d. n.d. n.d. n.d. n.d. n.d. n.d. n.d. n.d. material layer MVR (300° C., 1.2 kg) cm.sup.3/(10 27.6 59.7 n.d. 99.4 n.d. 82.4 114.0 71.5 74.2 100 75.8 40.2 min) MVR (270° C., 1.2 kg) cm.sup.3/(10 10.9 19.8 46.6 28.6 64.7 17.4 26.9 28.0 31.4 40.1 33.4 16.9 min) Melt viscosity at 260° C. eta 50 Pa .Math. s 520 427 189 245 156 244 165 218 207 171 185 660 eta 100 Pa .Math. s 490 407 186 243 154 238 163 214 205 165 183 632 eta 200 Pa .Math. s 445 372 181 239 151 228 159 206 198 160 181 523 eta 500 Pa .Math. s 353 302 157 205 131 208 152 178 177 146 165 392 eta 1000 Pa .Math. s 271 235 131 170 110 174 138 150 151 125 143 296 eta 1500 Pa .Math. s 221 194 114 148 97 154 120 132 132 111 126 243 eta 5000 Pa .Math. s 102 92 69 80 55 88 72 73 78 61 113 Melt viscosity at 280° C. eta 50 Pa .Math. s 260 203 81 104 69 n.d. 75 113 112 105 101 491 eta 100 Pa .Math. s 253 198 80 102 68 74 111 111 100 99 391 eta 200 Pa .Math. s 243 192 78 100 66 72 107 108 95 97 309 eta 500 Pa .Math. s 207 169 74 96 64 69 99 102 81 95 241 eta 1000 Pa .Math. s 169 143 67 86 57 63 88 92 74 87 197 eta 1500 Pa .Math. s 148 125 61 78 53 55 80 85 80 170 eta 5000 Pa .Math. s 81 70 41 51 37 33 52 55 91 Melt viscosity at 300° C. eta 50 Pa .Math. s 152 128 38 44 44 n.d. n.d. 63 62 47 36 337 eta 100 Pa .Math. s 149 126 37 43 43 62 61 47 49 260 eta 200 Pa .Math. s 143 122 36 42 42 60 59 46 56 209 eta 500 Pa .Math. s 129 113 35 41 40 58 56 49 67 174 eta 1000 Pa .Math. s 112 98 34 40 38 52 49 47 56 146 eta 1500 Pa .Math. s 100 88 33 39 35 46 43 53 128 eta 5000 Pa .Math. s 60 55 25 28 26 30 26 74 UL94V (organosheet, 0.7 mm, 0°) (48 h, 23° C.) V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 (7 d, 70° C.) V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 Overall assessment V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 UL94V on (organosheet, 0.7 mm, 90°) (48 h, 23° C.) V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 (7 d, 70° C.) V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 Overall assessment V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0

TABLE-US-00004 TABLE 4 Inventive examples Formulation IE13 IE14 A-1 % by wt. 57.90 A-2 % by wt. 20.00 20.00 A-5 % by wt. 57.90 B % by wt. 5.00 5.00 C % by wt. 10.00 10.00 D % by wt. 7.00 7.00 E-1 % by wt. 0.10 0.10 Tests MVR (300° C., 1.2 kg) cm.sup.3/(10 min) 33.8 26.6 MVR (270° C., 1.2 kg) cm.sup.3/(10 min) 14.6 11.4 Melt viscosity at 260° C. eta 50 Pa .Math. s 624 363 eta 100 Pa .Math. s 511 324 eta 200 Pa .Math. s 383 284 eta 500 Pa .Math. s 251 240 eta 1000 Pa .Math. s 188 195 eta 1500 Pa .Math. s 150 168 eta 5000 Pa .Math. s 80 99 Melt viscosity at 280° C. eta 50 Pa .Math. s 448 257 eta 100 Pa .Math. s 351 224 eta 200 Pa .Math. s 275 195 eta 500 Pa .Math. s 192 168 eta 1000 Pa .Math. s 152 141 eta 1500 Pa .Math. s 121 120 eta 5000 Pa .Math. s 59 71 Melt viscosity at 300° C. eta 50 Pa .Math. s 335 182 eta 100 Pa .Math. s 281 158 eta 200 Pa .Math. s 220 148 eta 500 Pa .Math. s 161 126 eta 1000 Pa .Math. s 121 107 eta 1500 Pa .Math. s 101 95 UL94V on (organosheet, 0.7 mm, 0°) (48 h, 23° C.) V0 V0 (7 d, 70° C.) V0 V0 Overall assessment V0 V0 UL94V on (organosheet, 0.7 mm, 90°) (48 h, 23° C.) V0 V0 (7 d, 70° C.) V0 V0 Overall assessment V0 V0

TABLE-US-00005 TABLE 5 Inventive examples-stabilization Formulation IE15 IE16 IE17 IE18 A-1 % by wt. 53.00 53.00 53.00 53.00 A-2 % by wt. 20.00 19.90 19.98 19.98 A-5 % by wt. B % by wt. 10.00 10.00 10.00 10.00 C % by wt. 10.00 10.00 10.00 10.00 D % by wt. 7.00 7.00 7.00 7.00 E-1 % by wt. 0.10 E-2 % by wt. 0.02 E-3 % by wt. 0.02 Tests MVR (240° C., 1.2 kg) 11.4 3.7 7.4 7.3 MVR (240° C., 2.16 kg) cm.sup.3/(10 min) 20.8 7.0 14.2 13.7 MVR (250° C., 1.2 kg) cm.sup.3/(10 min) 17.7 5.4 11.4 11.5 MVR (250° C., 2.16 kg) cm.sup.3/(10 min) 32.5 10.5 21.3 21.3 MVR (260° C., 1.2 kg) cm.sup.3/(10 min) 25.7 7.4 15.8 16.3

[0380] The results show that it is possible only with the compositions used in accordance with the invention to attain a V0 classification coupled with good processibility; the compositions according to the comparative examples did not give organosheets that attained a V0 classification.