MULTILAYER COMPOSITE DESIGN MATERIAL HAVING SPECIAL POLYCARBONATE COMPOSITIONS AS MATRIX MATERIAL

Abstract

The present invention relates to fibre composite materials composed of a fibre material and an aromatic polycarbonate-based matrix material and to multilayer composite materials comprising one or more such layers of fibre composite material. The fibre composite material has a pleasing look with stripes that seem naturally formed on a white or coloured background. The fibre layer(s) is/are embedded in the matrix material. The present invention further relates to a process for producing the fibre composite materials and multilayer composite materials and to components, housing components or housings, especially for laptop, notebook or ultrabook covers, comprising such composite materials themselves.

Claims

1.-15. (canceled)

16. A fibre composite material comprising at least one layer of fibre material embedded into an aromatic polycarbonate-based composition, wherein the composition comprises A) 60% by weight to 85% by weight of aromatic polycarbonate, B) 2% by weight to 20% by weight of white pigment, C) 0% to 2.5% by weight of colourants other than components B), D.1) 0% to 12% by weight of one or more oligomeric phosphates of the general formula (5) ##STR00037## in which 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 and 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, D.2) 4% by weight to 12% by weight of one or more cyclic phosphazenes of the formula (1) ##STR00038## where R is the same or different at each instance 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.

17. A process for producing a layer of fibre composite material according to claim 16, wherein a molten aromatic polycarbonate-based composition comprising A) 60% by weight to 85% by weight of aromatic polycarbonate, B) 2% by weight to 20% by weight of white pigment, C) 0% to 2.5% by weight of colourants other than components B), D.1) 0% to 12% by weight of one or more oligomeric phosphates of the general formula (5) ##STR00039## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a C.sub.1- to C.sub.5-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 and 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, D.2) 4% by weight to 12% by weight of one or more cyclic phosphazenes of the formula (1) ##STR00040## where R is the same or different at each instance 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, is applied to a raw fibre tape composed of fibre material that has been preheated to above the glass transition temperature of the polycarbonate.

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

19. The fibre composite material according to claim 16 wherein the fibre material is selected from the group consisting of carbon fibres, basalt fibres and mixtures thereof and is endless fibres, a weave or a knit.

20. The fibre composite material according to claim 16, wherein the fibre material is endless fibres and the endless fibres are aligned unidirectionally.

21. The fibre composite material according to claim 16, wherein the composition is free of fluorine-containing anti-dripping agent.

22. The fibre composite material according to claim 16, wherein the aromatic polycarbonate-based composition comprises A) 60% by weight to 85% by weight of aromatic polycarbonate, B) 2% by weight to 20% by weight of white pigment, C) 0% to 2.5% by weight of colourants other than components B), D.1) 1% to 12% by weight of one or more oligomeric phosphates of the general formula (5) ##STR00041## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a C.sub.1- to C.sub.5-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 and 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, where the sole oligomeric phosphate of the formula (5) present is the phosphorus compound of the formula (5a) ##STR00042## with an average q value q=1.0 to 1.2, D.2) 5% by weight to 12% by weight of one or more cyclic phosphazenes of the formula (1) ##STR00043## where R is the same or different at each instance 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, wherein the white pigment comprises titanium dioxide and/or barium sulfate, and the fibre material comprises unidirectionally oriented endless carbon fibres.

23. The fibre composite material according to claim 16, wherein the aromatic polycarbonate-based composition consists of A) 60% by weight to 85% by weight of aromatic polycarbonate, B) 2% by weight to 20% by weight of white pigment, C) 0% to 2.5% by weight of colourants other than components B), D.1) 0% to 12% by weight of one or more oligomeric phosphates of the general formula (5) ##STR00044## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a C.sub.1- to C.sub.5-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 and 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, where at least bisphenol A bis(diphenylphosphate) is present as oligomeric phosphate, where the sole oligomeric phosphate of the formula (5) present is the phosphorus compound of the formula (5a) ##STR00045## with an average q value q=1.0 to 1.2, D.2) 4% by weight to 12% by weight of one or more cyclic phosphazenes of the formula (1) ##STR00046## where R is the same or different at each instance 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, where the cyclic phosphazene of the formula (1g) present is phenoxyphosphazene and the proportion when k=1 is 50 to 98 mol %, based on the total amount of phenoxypho sphazene, E) optionally one or more further additives are selected from the group consisting of flame retardants other than component D.1 and component D.2, thermal stabilizers, UV stabilizers, IR absorbents, demoulding agents, flow auxiliaries, antistats, impact modifiers, acid stabilizers and/or fillers, wherein the fillers are not a white pigment as per component B, where the white pigment comprises titanium dioxide and/or barium sulfate.

24. A multilayer composite material comprising at least two mutually superposed layers of fibre composite material, wherein at least one outer layer is the fibre composite material according to claim 16.

25. The multilayer composite material according to claim 24, comprising at least three mutually superposed layers of fibre composite material that are defined relative to one another as two outer layers of fibre composite material and at least one inner layer of fibre composite material, wherein the two outer layers of fibre composite material are the fibre composite material according to claim 16.

26. The multilayer composite material according to claim 24, 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.

27. The multilayer composite material according to any of claim 24, comprising at least two inner and at least two outer layers of fibre composite material, wherein the inner layers of fibre composite material have essentially the same orientation, wherein the orientation of one layer of fibre composite material is determined by the orientation of the unidirectionally aligned fibres present therein, and the orientation thereof relative to the outer layers of fibre composite material is rotated by 30° to 90°, and wherein at least one outer layer of fibre composite material is the fibre composite material according to claim 16 and the fibres in this layer comprise unidirectionally aligned endless carbon fibres.

28. A process for producing a multilayer composite material according to claim 25, comprising the following steps: 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.

29. A moulded article comprising the fibre composite material according to claim 16.

30. The moulded article according to claim 29, wherein the moulded article is a housing or housing part for a computer, a laptop, a notebook, an ultrabook, a monitor, a TV, a tablet, a telephone, a mobile telephone, or a structural or lining element for motor vehicle interiors or building interiors.

Description

[0296] 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:

[0297] 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,

[0298] 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,

[0299] FIG. 3 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,

[0300] FIG. 4 the exceptional visual appearance of a multilayer composite material according to the invention.

[0301] 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.

[0302] 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°.

WORKING EXAMPLES

[0303] 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.

[0304] Starting Materials: [0305] A-1: Polycarbonate from Covestro Deutschland AG. Linear polycarbonate based on bisphenol A having a melt volume flow rate MVR of 17 cm.sup.3/(10 min) (as per ISO 1133:2012-03, at a test temperature of 250° C. and 2.16 kg load). [0306] A-2: Polycarbonate 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). [0307] A-3: 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). [0308] A-4: Linear polycarbonate based on bisphenol A with 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). [0309] A-5: Makrolon® 3108 powder from Covestro Deutschland AG. Linear polycarbonate based on bisphenol A with 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). [0310] A-6: Makrolon® 2408 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). [0311] A-7: Linear polycarbonate based on bisphenol A and 24% by weight of 4,4-dihydroxybiphenyl with a melt volume flow rate MVR of 8 cm.sup.3/10 min (according to ISO 1133:2012-03, at a test temperature of 300° C. and 1.2 kg load). [0312] B-1: Kronos® 2230 titanium dioxide from Kronos Worldwide, Inc. [0313] B-2: Blanc Fixe barium sulfate from Sachtleben Bergbau GmbH & Co KG. [0314] C-1: Macrolex® Blue RR from Lanxess Deutschland GmbH with CAS number 32724-62-2, C. I. (Color Index) 615290. [0315] C-2: Heucodur Yellow 8G from Heubach GmbH with CAS number 8007-18-9, C. I. 77788. [0316] C-3: Sicotan Yellow K1010 from BASF AG with CAS number 8007-18-9 C. I. 77788. [0317] C-4: Macrolex® Red EG from Lanxess Deutschland GmbH with CAS number 20749-68-2 C. I. 564120. [0318] C-5: Heliogen Green K 8730 from BASF AG with CAS number 1328-53-7, C.I. 74260. [0319] D-1: Bisphenol A bis(diphenylphosphate) from Remy GmbH & Co. KG, Germany. [0320] D-2: Rabitle FP-110 phenoxyphosphazene from Fushimi Pharmaceutical, Japan. [0321] 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. 60 000 individual filaments are supplied in a roving as an endless spool.

[0322] Preparation of the Compositions

[0323] 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).

[0324] The pellets of the test formulations detailed were dried in a Labotek DDM180 dry air dryer at 80° C. for 4 hours.

[0325] Production of the Layers of the Fibre Composite Material/the Multilayer Composite Material:

[0326] Production of a Fibre Composite Material Layer

[0327] The fibre composite material layers were produced in an experimental setup as described in DE 10 2011 005 462 B3.

[0328] 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.

[0329] The raw fibre tape was heated to a temperature above the glass transition temperature of the respective pellets.

[0330] 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.

[0331] Assembly of the Fibre Composite Material Layers—Part 1

[0332] 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 A1 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.

[0333] Some of the assembled tapes from part 1 were subdivided into square sections orthogonally to the fibre orientation with a guillotine.

[0334] Assembly of the Fibre Composite Material Layers—Part 2

[0335] 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.

[0336] Production of the Organosheets

[0337] 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.

[0338] 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.

[0339] 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.

[0340] 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 tim. The fibre volume content of the fibre composite material layers was about 50% by volume per individual layer.

[0341] Samples were cut out of the organosheets thus produced by means of a water-jet. 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.

[0342] Methods:

[0343] Melt volume flow rate (MVR) was determined according to ISO 1133:2012-03 (at a test temperature of 300° C. or 270° C., mass 1.2 kg) using a Zwick 4106 instrument from Zwick Roell.

[0344] Melt viscosity was determined in accordance with ISO 11443:2005 with a Gottfert Visco-Robo 45.00 instrument.

[0345] 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.

[0346] The fire characteristics were measured according to UL94 V on bars of dimensions 127 mm×12.7 mm×organosheet thickness [min]. 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.

[0347] “n.d.” means “not determined” in each case.

[0348] Compositions and results:

TABLE-US-00001 TABLE 1 Titanium dioxide-containing uncoloured formulations 1 2 3 4 5 6 Formulation A-1 % by wt. 53.00 A-2 % by wt. 53.00 55.00 A-3 % by wt. 20.00 20.00 20.00 20.00 A-4 % by wt. 53.00 50.00 A-5 % by wt. 20.00 20.00 A-7 % by wt. 60.00 B-1 % by wt. 10.00 10.00 10.00 10.00 10.00 5.00 D-1 % by wt. 7.00 7.00 7.00 10.00 7.00 7.00 D-2 % by wt. 10.00 10.00 10.00 10.00 8.00 8.00 Tests MVR (300° C., 1.2 kg) cm.sup.3/(10 min) 50.2 n.d. 74.8 52.7 n.d. 41.8 IMVR (20′, 300° C., 1.2 kg) cm.sup.3/(10 min) 59.0 n.d. 88.2 65.2 n.d. 45.8 ΔMVR/IMVR (300° C.) 9.7 n.d. 13.4 12.5 n.d. 4.0 MVR (270° C., 1.2 kg) cm.sup.3/(10 min) n.d. 72.8 32.4 24.2 31.2 17.9 IMVR (20′, 270° C., 1.2 kg) cm.sup.3/(10 min) n.d. 81.4 36.0 27.6 36.4 18.6 ΔMVR/IMVR (270° C.) n.d. 8.6 3.6 3.4 5.2 0.7 Melt viscosity at 260° C. eta 50 Pa .Math. s n.d. 89 175 250 334 615 eta 100 Pa .Math. s n.d. 87 172 246 316 508 eta 200 Pa .Math. s n.d. 84 167 234 274 432 eta 500 Pa .Math. s n.d. 79 156 203 212 357 eta 1000 Pa .Math. s n.d. 73 137 167 176 282 eta 1500 Pa .Math. s n.d. 68 121 140 152 235 eta 5000 Pa .Math. s n.d. 47 78 78 83 112 UL94V (organosheet, 0.8 mm, 0°) (48 h, 23° C.) V0 V0 V0 V0 n.d. n.d. (7 d, 70° C.) V0 V0 V0 V0 n.d. n.d. Overall assessment V0 V0 V0 V0 n.d. n.d. UL94V (organosheet, 0.8 mm, 90°) (48 h, 23° C.) V0 V0 V0 V0 V0 V0 (7 d, 70° C.) V0 V0 V0 V0 V0 V0 Overall assessment V0 V0 V0 V0 V0 V0

TABLE-US-00002 TABLE 2 Titanium dioxide-containing coloured formulations 7 8 9 10 11 12 13 14 15 16 Formulation A-3 % by wt. 19.90 19.00 20.00 20.00 20.00 20.00 20.00 20.00 20.00 20.00 A-6 % by wt. 53.00 53.00 52.80 56.80 59.80 51.00 55.00 58.00 52.80 52.00 B-1 % by wt. 10.00 10.00 12.00 8.00 5.00 12.00 8.00 5.00 10.00 10.00 C-1 % by wt. 0.10 0.20 0.20 0.20 C-2 % by wt. 1.00 C-3 % by wt. 2.00 2.00 2.00 C-4 % by wt. 0.20 C-5 % by wt. 1.00 D-1 % by wt. 7.00 7.00 5.00 5.00 5.00 5.00 5.00 5.00 7.00 7.00 D-2 % by wt. 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 10.00 Tests MVR (300° C., 1.2 kg) cm.sup.3/(10 min) 92.2 94.0 n.d. 74.1 68.6 n.d. 75.8 69.5 n.d. n.d. IMVR (20′, 300° C., 1.2 kg) cm.sup.3/(10 min) 112.3 111.5 n.d. 83.7 73.7 n.d. 89.4 76.4 n.d. n.d. ΔMVR/IMVR 20.1 17.5 n.d. 9.6 5.1 n.d. 13.6 6.9 n.d. n.d. MVR (270° C., 1.2 kg) cm.sup.3/(10 min) 39.0 39.2 32.6 31.1 30.9 34.7 30.7 30.6 37.1 67.9 IMVR (20′, 270° C., 1.2 kg) cm.sup.3/(10 min) 42.5 44.1 37.2 34.4 31.7 41.1 34.3 32.1 41.1 40.6 ΔMVR/IMVR (270° C.) 3.5 4.9 4.6 3.3 0.8 6.5 3.6 1.5 4.0 −27.3 Melt viscosity at 260° C. eta 50 Pa .Math. s 174 174 380 407 355 270 239 294 421 281 eta 100 Pa .Math. s 166 166 313 274 309 218 211 264 281 250 eta 200 Pa .Math. s 152 158 256 249 288 197 204 242 235 211 eta 500 Pa .Math. s 142 146 213 211 230 191 190 211 184 174 eta 1000 Pa .Math. s 122 126 175 177 188 160 165 176 151 145 eta 1500 Pa .Math. s 112 110 151 154 162 140 146 154 132 127 eta 5000 Pa .Math. s 80 79 82 84 87 79 82 84 74 72 UL94V (organosheet, 0.8 mm, 0°) (48 h, 23° C.) V0 V0 V0 n.d. V0 n.d. n.d. n.d. n.d. n.d. V0 (7 d, 70° C.) V0 V0 V0 n.d. V0 n.d. n.d. n.d. n.d. n.d. V0 Overall assessment V0 V0 V0 n.d. V0 n.d. n.d. n.d. n.d. n.d. V0 UL94V (organosheet, 0.8 mm, 90°) (48 h, 23° C.) 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 Overall assessment V0 V0 V0 V0 V0 V0 V0 V0 V0 V0 V0

TABLE-US-00003 TABLE 3 Barium sulfate-containing coloured formulations 17 18 19 Formulation A-3 Gew.-% 20.00 20.00 20.00 A-6 Gew.-% 47.80 46.80 45.00 B-2 Gew.-% 15.00 15.00 15.00 C-1 Gew.-% 0.20 0.20 C-3 Gew.-% 2.00 D-1 Gew.-% 7.00 8.00 7.00 D-2 Gew.-% 10.00 10.00 10.00 Tests MVR (270° C., 1.2 kg) cm.sup.3/(10 min) 37.8 40.9 46.8 IMVR (20′, 270° C., 1.2 kg) cm.sup.3/(10 min) 38.1 42.3 47.3 ΔMVR/IMVR 0.3 1.4 0.5 Melt viscosity at 260° C. eta 50 Pa .Math. s 320 201 n.m. eta 100 Pa .Math. s 261 188 n.m. eta 200 Pa .Math. s 207 169 n.m. eta 500 Pa .Math. s 175 145 n.m. eta 1000 Pa .Math. s 144 127 n.m. eta 1500 Pa .Math. s 128 115 n.m. eta 5000 Pa .Math. s UL94V (organosheet, 0.8 mm, 90°) (48 h, 23° C.) V0 V0 V0 (7 d, 70° C.) V0 V0 V0 Overall assessment V0 V0 V0 n.m.: not measurable on account of excessibely high flowability

[0349] Inventive compositions 1 to 19 lead to organosheets having a white or coloured matrix, and the unidirectional endless carbon fibres used for production of the organosheets in the tests result in a “striped pattern”, a kind of marbling (FIG. 4). At the same time, organosheets at thickness 0.8 mm attain a UL 94 classification of VO.