MXPA97009367A - Amorfa lamina color of a crystallized thermoplastic - Google Patents

Abstract

The present invention relates to a colored amorphous sheet with a thickness in the range of 1 to 20 mm, in which the main component is a crystallizable thermoplastic and at least one organic and / or inorganic dye, and a process for its production and its use, the plate of the invention may also contain a stabilizer

Description

AMORFA LAMINA COLOR OF A CRYSTALLIZABLE TERMQPLASTICO FIELD OF THE INVENTION The invention relates to a love color color of a < This is the thickness of which is on a scale of 1 to 2 (1 in.) The laminate comprises at least one organic pigment and / or an inorganic pigment as a colorant. Its mechanical properties are very good The invention also relates to a process for the production of sheet and its use.

BACKGROUND OF THE INVENTION Amorphous colored sheets having a thickness of between 1 and 20 inrn are suitably known. These structures sernejan + is a leaf are made of amorphous thermoplastics not cpstalizables. Typical examples of these thermoplastics which are converted into sheets are, for example, polyvinyl chloride (PV), polycarbonate (P) and methylmeride methacrylate (PMMfi). These sernterinated products are produced in the so-called extrusion lines (see Polyrner ler stoffe [Materials Polirnepcos], Volume TI, Technology 1, Georg Thierne Verlag, Stuttgart, 1984). The powder or granular coupler material is added to an extruder. After the extrusion, the amorphous thermoplastic can be reshaped by polishing or die-forming piles as a result of the viscosity const annen t or cient with the temperature decreased. After t conformation, the amorphous models have an adequate stability, that is, a viscosity a to "stand on t own" in the formation die, However, they are still soft enough to be shaped by the die The viscosity in the molten state and the internal rigidity of the amorphous thermoplastics in the forming die are also that the serrated product is not crushed before being cooled in the forming die. In the case of materials that decompose easily, such as PVC, particular processing aids such as, for example, decomposition treatment stabilizers and lubricants are needed. a too high internal friction and therefore non-rolling heating during the extrusion step. External lubricants are necessary to prevent the material from adhering to the walls and rollers. In the PIMA armen-t or t, for example, a devolatilizing extruder is used for the purpose of removing moisture. In the production of amorphous thermoplastic sheets, high cost additives are sometimes necessary, which in some cases migrate and can lead to problems in production as a result of evaporation and surface deposits on the product being determined. PVC sheets are difficult to recirculate or can only be recirculated with special neutralization or electrolysis procedures.

The sheets of FC and PUMA are also difficult to recycle and can only be removed with a loss or deterioration ext emo in the mechanical properties. In addition to these deviations, the PUMA sheets also have an extremely low impact resistance and splinters when fractured or under mechanical t-ensLon. In addition, the sheets of PMMA are easily combustible, so that these sheets can not be used, for example, for interior applications and in exhibition construction. Adornas, the sheets of PMMA and PC can not conform in the cold. During cold forming, the PMMA sheets are broken in hazardous areas. During the cold conforming of CP sheets, capillary cracks and white fractures occur. In EP-A-0 471 520 a method for forming an object from a polyethylene terephthalate (PFT) sheet is described. The intrinsic viscosity of the PFT used is on a scale of 0.5 to 1.2. The PFT sheet is heat treated on both sides in a thermoformer mold on a temperature scale of between the transition temperature. of glass and the melting temperature. The shaped PET sheet is removed from the mold when the crystallization magnitude of the formed PET sheet is on the scale from 25 to 50%. The PET sheets described in FP-A-0 471 528 have a thickness of 1 to 10 nm. Since the thermoformed molded article produced from the PET sheet is partially crystalline and therefore is not transparent and the surface properties of the shaped article are determined by the tepnoforrnac ion process and the temperatures and ferins given by this, the optical properties (for example luster, opacity and light transmission) of the PFT sheets used are not important. As a rule, the optical properties of these sheets are poor and require optimization. The sheets do not comprise a coloring substance nor an organic or inorganic pigment. Cn US -A-3, 4r_b, 143 describes the vacuum thermoforming of a PET sheet 3 mm thick, which must be on the scale of 5 to 25%. The glass of the engineered article is larger than 25%. Neither do these PET sheets impose requirements with respect to the optical properties. Since the stability of the sheets used is between 5% and 25%, these sheets are opaque and not transplants. The sheets do not include coloring matter or organic or inorganic pigments as colorants. Since said sheets do not comprise a light stabilizer, they are suitable only to a limited extent for application to external doors. Furthermore, to date it has only been possible to obtain amorphous sheets of crystallizable plastics as a main constituent with a thickness of 1 nm or more with optical and mechanical properties. actors. The object of the present invention is to provide a colored amorphous sheet having a thickness of 1 to 20 nm which has good mechanical properties and good optical properties. Good optical properties include, for example, a low light transmission and an upper surface luster1. Good mechanical properties include, among other things, a high impact strength and a high fracture resistance. Furthermore, the lam na according to the invention must be recyclable, in particular without loss of mechanical properties, and poorly combusible, so that, for example, it can be used for interior applications and in exhibition construction. The object is achieved by a colored ammonium sheet having a thickness in the range of 1 to 20 nm, which comprises, as the main constituent, a thermostable plastics and at least one organic and / or inorganic pigment as a colorant. The present invention also relates to a process for the production of this sheet having the features of claim 23. Preferred embodiments of this process are explained in the dependent claims 24 to 29. The concentration of the dye is preferably on the scale of 0.5 to 30% by weight, based on the crystallizable clay deposit.

When dyes are considered, a distinction is made according to DIN '.5944 between dyes and pigments. The pigments are v? R < They are soluble in the polymer under the respective treatment conditions, while the dyes are soluble (DTN 55949) "The coloring action of the pigments is carried out by the particles by themselves. The term pigment is generally associated with a particle size of 0.01 in to 1.0 μr. According to DTN 'i320h, the pigment particles are defined by a distinction between primary particles, aggregates and agglomerates. As primary particles are generally produced in the synthesis, they have a pronounced tendency to aggregate as a result of their extremely small particle size. This produces the aggregates by means of aggregation of areas of the primary particles, which in this way have a surface area smaller than that corresponding to the sum of the surface area of the primary particles. As a result of the agglomeration of primary particles and / or aggregates at the corners and edges, the agglomerates are formed, whose total surface areas differ only a little from the sum of the individual areas. If reference is made to the particle size of the pigment without other de-carved indications, it refers to the aggregates as they are present essentially after coloration. In the pigments that are in powder form, the aggregates always come together to urinate agglomerates that during the coloring process must be cleaned, wetted with the pollinator and distributed homogeneously, the processes that occur imperatively are called di pers. In the case of coloration with dyes, on the other hand, the procedure involved is in solution, as a result of which the color-before is present in an inoleculently dissolved form, in contrast to the inorganic pigments, in the case In fact, the complete insolubility is not the case, especially not in the case of pigments of simple composition that have low molecular weights.The colors-before are adequately described by their chemical structure. They are in each case of identical chemical composition, however, they can be prepared and exist in different forms of crystal.A typical example of this is the white pigment of di titanium oxide which may exist in the form of rutile and in the anatase form. In the case of pigments, it is possible to improve their useful properties by means of coating, that is to say, by treating the surface of the pigment particles again using organic or inorganic agents. This improvement consists in particular in fitating dispersion and in increasing the stability to light and resistance to weathering and to chemical agents. Typical coating agents for pigments are fatty s, fatty amides, siloxanes and aluminum oxides, for example.

Examples of suitable inorganic pigments are the white pigments titanium dioxide, zinc sulphide and tin sulphide, which can be coated with organic and / or morgamic substances. The titanium dioxide particles may comprise anatase or rutile, but preferably predominantly rutile, which in comparison with anatase exhibits increased opy. In a preferred embodiment, at least 95% by weight of the titanium dioxide particles consist of rutile. They can be prepared by a usual procedure, for example by the chloride or sulphate process. The average particle size is relatively low and is preferably in the range of 0.10 to 0.30 μm. Using titanium dioxide of the type described, vacuoles are not formed within the polymer matrix during sheet production. The titanium dioxide particles may have a coating of inorganic oxides, since they are usually employed as a white pigment coating of TL02 in papers or coating compositions to improve light fastness. It is known that T1O2 is photoactive. Ba or the action of UV rays, free radicals are formed on the surfaces of the particles. These free radicals can migrate to the film-forming constituents of the coating composition, leading to degradation and yellowing reactions. Particularly suitable oxides include the oxides of aluminum, silicon, zinc or magnesium, or mixtures of two or more of these compounds. For example, T1O2 particles having a coating of 2 or more of these compounds are described in EP-A-0 044 515 and in EP-A 0 078 F >; 33. I can also understand organic compounds that have polar groups and apoLaros. During the preparation of the sheet by extrusion of molten polymer, the organic compounds must be of sufficient thermal stability. Examples of polar groups < -on -OH, OR, -000X, (X-R, I-I or Na, R = alkyl having from 1 to 34 carbon atoms). Preferred organic compounds are alkanols and fatty acids having from 8 to 30 carbon atoms in the alkyl group, especially fatty acids and primary N-alkanols having from 12 to 24 carbon atoms, and also polydiorganosiloxanes and / or polyorganohydrodosiloxanes, for example polydirneti i si loxane and poly dirneti 1 hi dridosi loxane. The coating on the titanium dioxide particles usually consists of 1 to 12 g, in particular 2 to 6 g, of inorganic oxides and 0.5 to 3 g, in particular 0.7 to 1.5 g of organic compound, in base to 100 g of titanium dioxide particles. The coating is applied to the particles in aqueous suspension. The inorganic oxides are precipitated in the aqueous suspension of water soluble compounds, for example alkaline metal aluminate, especially sodium aluminate, aluminum hydroxide, aluminum sulfate, aluminum nitrate, sodium silicate (soluble glasses) or acid. 1 ic co,. The term "inorganic oxides", such as AI2O3 and S1O2, should also be understood as including the hydroxides or their different forms of dehydration, for example, hydrated oxides, without their precise structure of composition being known. The hydrated oxides of, for example, aluminum and / or silicon are precipitated on the T1O2 pigment after calcining- and grinding in aqueous suspension, and then the pigments are washed and dried. Therefore, this precipitation may take place in a suspension as is produced in the synthesis process after calcification, and the subsequent wet milling. The determination of the oxides and / or the hydrated oxides of the respective rnetals to-from water-soluble metal salts within the known pH range; For example, aluminum sulfate is used in aqueous solution (pH less than 4), and the hydrated oxide is precipitated by aggregating aqueous solution of arnonia or sodium hydroxide on the pH scale between 5 and 9, preferably between 7 and 8.5. Starting from a liquid glass or alkali metal aluininate solution, the pH of the initial charged T1O2 suspension should be in the strongly alkaline scale (pH greater than 8). In this case, the precipitation is carried out by adding mineral acid, such as sulfuric acid, on the pH scale of 5 to 8. After precipitation of the metal oxides, the suspension is subsequently stirred for 15 minutes << < approximately 2 hours, during which the precipitated coatings suffer from aging. The ortho-coated product is separated from the aqueous dispersion and, after washing *, dried at an elevated temperature, specifically 70 to 110 ° C. The typical inorganic black pigments are modulations of carbon black that can also be coated, carbon pigments that differ from the pigments of carbon black by a higher ash content, and black oxide pigments, such as iron oxide black and mixtures of copper oxide, chromium and iron (mixed phase pigments). The appropriate color inorganic pigments are color oxide pigments, pigments containing hydroxyl, sulfur pigments and chromates. Examples of color oxide pigments are iron oxide oxide, mixed phase pigments, titanium dioxide, antimony oxide, titanium dioxide, chromium oxide, mixed phase pigments of antimony oxide, mixtures of oxides of iron, zinc and titanium, coffee of chromium oxide and iron oxide, spinels of the cobalt oxide-aluminum-phthalene-zinc-zinc system, and mixed-phase pigments based on other oxides of metal Typical examples of hydroxyl-containing pigments are trivalent iron oxide hydroxides, such as FeOOH. Examples of sulfate pigments are cadmium sulphide-selenides, cadmium and zinc sulphides, sodium silicate and aminimum containing p-lysulfide bound with a / u re in the crystal network. Examples of chromates are lead chromates, which may exist in the forms of monoclonal, molecular, and tetragonal crystal. All the "colored" particles, such as the black and white pigments, can be- non-coated, or coated with inorganic substances.; and / or organic. The organic-colored pigments are generally divided into azo pigments and the so-called non-azo pigments. The characteristic feature of the azo pigments is the azo group (~ N = N-). Azo pigments include rnonoazo pigments, disazo pigments, disazo condensation elements, azo color-to-acid salts and mixtures of azo pigments. The amorphous color sheet 1 comprises at least one inorganic and / or organic pigment. In specific embodiments, the amorphous sheet may also comprise mixtures of inorganic and / or organic pigments, and also soluble dyes. In this context, the concentration of the soluble dye is preferably in the range of 0.001 to 20% by weight, preferably 0.01 to 20%, and particly preferably in the range of 0.5 to 10% by weight, based on the weight of the thermoplastic cpstalizable. Among the soluble dyes, partic preference is given to the color-before they are soluble in fats and aromatic substances. These are azo dyes or anteroquinone odorants. Suitable color-soluble solvents are, for example: Solvent yellow 93, a derivative of p razolone; Solvent yellow 16, a grease-soluble azo-color azo-green fluorine, a fluorescent color-ante policiclieo, red solvento 1, an azo dye, azo collants such as red t ermopLast ico BS, Sudan Red DB, Red solvent 138, an anthraquinone derivative, fluorescent benzopyran dyes such as Red fluorol GK and Orange fluorol GK, Blue solvent 35, an anthraquinone dye, solvent Blue, a phthalocyan dye, and many others. Mixtures of 2 or more of these previously soluble colors are also suitable. The colored amorphous sheet comprises, as the main constituent, a crystallizable thermoplastic. Suitable crystallizable or partially crystalline epnoplastics are, for example, polyethylene terephthalate, polybutylene terephthalate, cycloolefin polymers and cycloolefin copolymers, with filled poly terephthalate being preferred. According to the invention, it is understood that crystallizable plastics means: - copolymerizable copolymers - copolymers, crystallizates - materials of critical compounds - recirced material? cp st to the izabl e, and oi ras vai rations of t ermop last eos cp st al i zables. The amorphous film in the context of IA presented a significant invention of sheets that are non-crystalline, although the employed optical knife has a density of between 65% and 65%, preferably 25%. and f) 5%. Non-crystalline, that is, essentially amorphous, signifies that the graph of in general in the case is below 5%, preferably below%, and preferably 0% is preferred. The amorphous sheet according to the invention is essentially non-oriented. The normal viscosity VN of the thermoplastic according to the invention (DCA), measured in dichloroacetic acid in accordance with DIN 53728, is between 800 and 6,000, preferably between 950 and 5,0ÜC) and is particly preferred within 1,000 Y 4,000 The intrinsic viscosity VI (DCA) is calculated as follows from the normal viscosity: VI (ÜCA: 6.67 x 10-4 VN (DCA) + 0.118 In a particularly preferred embodiment, the colored amorphous sheet according to the invention comprises, as the main constituent, polystyrene terephthalate cp stalizable. The procedures for the preparation of L5 t-errnopldst icos cri st al zabLes are known to the expert. The polyethylene polymer supports are prepared by poly condensation in the ground state or by a two-step condensation, the first step is carried out in the molten state up to a moderate molecular weight -corresponding at a moderate intrinsic viscosity VL of approximately 0.5 to 0.7- and subsequent condensation carried out by solid state condensation. The pol condensation is generally carried out in the presence of known catalysts or pol condensation catalyst systems. In the solid state condensation, PET wafers are heated to temperatures in the range of 180 to 320 ° C under reduced pressure or under an inert gas until the desired molecular weight is reached. The preparation of polyethylene terephthalate is described in detail in a large number of patents such as, for example: ZJP-R-ñO-139 71? , DE-C-2 429 087, DE-A-27 07 491, DE-A-23 19 089, DE-A-16 94 461, JP-63-41 528, P-62-39 621, DE-A -41 17 825, DE-A-42 26 737, JP-60-141 715, DE-A-27 21 501 and US-A-5,296,586. Polyethylene terephthalates having particularly high molecular weights can be prepared by polycondensation of precondensates (oligorneros) of dicarboxylic acid-diol at elevated temperature in a liquid heat transfer medium - in the presence of customary polycondensation catalysts and, if appropriate, agents condensable modulators conju + arnent e, if the liquid medium of ealoi transfer is inert and free of aromatic structural groups and has a boiling point on the scale of 200 to 320 ° C, the weight ratio of eeondensed (ol igorneros) of di-carboxylic acid and co-diol used for a liquid medium the heat transfer is on the scale of 20:80 to 00:20, and the condensation is carried out in a vacuum. of reaction to boiling in the presence of a stabilizer of di pers. The surface luster of the sheet according to the invention, measured in accordance with DIN 67530 (measuring angle 20 °) is preferably greater than 90, particularly preferred greater than 100, and the transmission of light, measured in accordance with ASTM D 1003, is preferably less than 5%, particularly preferably less than 3%. The laminate of formulated with the invention also has homogenous opaque optical properties. In the case of polyethylene terephthalate, it is preferable that fracture does not occur on the dur-ante sheet when measuring the Charpy impact resistance, an (measured in accordance with ISO 179 / 1D). In addition, the impact strength with Izod, k notch (measured according to ISO 180 / 1A) of the Sheet is preferably in the range of 2.0 to 8.0 kJ / rnS, particularly preferred in the range of 4.0 to 6.0 I / m2 . The polymers of polyethylene terephthalate having a melting point of Tf glass, as measured by DSC (calorimetry), with a heating rate of 10 ° C / -unit, from 220 ° C to 280 ° C. , preferably from 230 ° C to 270 ° C, a scale of temperature Tc of between 65 ° 0 and 280 ° C, preferably 75 ° 0 and 260 ° C, a transition temperature of glass Tv of between 65" C and 90 ° C, and a density, measured in accordance with DTN 53479, from 1.30 to 1.45 and / crn3 and a stability of between 5% and 65%, preferably 25 to 65%, are the preferred polymers as materials of The total density, measured in accordance with DTN 53466, is profusely between 0.75 kg / dm3 and 1.0 kg / drn3, and it is shown in the first section of this section. nt re 0.80 kg / drn3 and 0. 0 kg / drn3, the polydispersity I1w / r1n of the full-length poly terephthalate measured by means of GPC is preferably 1.5 and 6.0, preferably between 2.5 and 6.0, and particularly between 3.0 and 5.0 is preferred. In one embodiment, the first in accordance with the invention is provided with a UV stabilizer as a light stabilizer. The concentration of the light stabilizer is preferably in the range of 0.01 to 5% by weight, based on the weight of the standable plastic terrnoplastic. Light, in particular the ultraviolet portion of solar radiation, that is, the wavelength scale from 200 to 400 nm, initiates degradation processes in thermoplastics, as a result of which not only does the visual appearance change due to a change ul (odor or yellowing), but they are also adversely affected by mechanical properties and fi ';? cas The inhibition of these degradation processes is important industrial and economic importance, since otherwise the possible uses of many techniques are limited drastically. For example, polyethylene lattices begin to absorb UV light even below 360 nm, and their absorption increases considerably below 320 nrn and is very low below 300 nrn. The maximum absorption is between 280 and 300 nm. In the presence of oxygen, it is mainly observed chain breaking but not entanglement. Carbon monoxide, carbon dioxide, and carboxylic acids are the predominant photooxidation products in terms of quantity. In addition to the direct photolysis of ester groups, oxidation reactions that also cause the formation of carbon dioxide by peroxide radicals must also be considered. The photooxidation of polyethylene terephthalates can also lead, by cleavage of hydrogen in the lfa position of the ester groups, to hydroperoxides and decomposition products thereof, and to the associated chain disruption (H. Day, Dn Uiles: J Appl. Polyrn, Sci. 16, 1972, page 203).

UV stabilizers or UV absorbers, as light stabilizers, are chemical compounds that can intervene in the physical and chemical processes of light-induced degradation. 1.1 Carbon black and other colors may have partially erect light protection. However, these substances are inadequate for sheets, since they lead to a change in color. For amorphous sheets they are only those organic and organometallic compounds that do not impart a change in color or do so in an ex-ternally light AI <l. errnop last i eo to stabilize. Suitable light stabilizers or UV stabilizers are, for example, 2-h? Droxibenzophenones, 2-hydroxy benzoth pazoles, organoniquel compounds, salicylic esters, cinnamic acid ester derivatives, resorcinol rnonobenzoates, oxalic acid aniLes, hydroxybenzoic esters, hindered amines and nazi tones are binding, with 2-h? droxi benzotpazoles and tpazmas. In a particularly preferred embodiment, the color amorphous sheet according to the invention comprises as the main constituent a crystallizable polyethylene terephthalate and from 0.01% by weight to 5.0% by weight of 2- (4,6-eliferu 1-1, 3, 5-tpaz? N-2-? L) -5- (hexyl) ox? - phenol (structure in Figure la) or 0.01% by weight at 5.0% by weight of 2,2 '-methylene-b? s (6- (2H-benzotpazol-2 ~? 1) -4- (l, 1) , 3, 3-tetra? Net? L buti l) phenol (structure in Figure Ib). In a preferred embodiment, mixtures of these two UV stabilizers or mixtures of at least one of these two UV stabilizers with other UV stabilizers can also be used; The total concentration of the light softeners is preferably between 0.01% by weight and 5.0%, based on the weight of the polymerizer. firewood The elemt ompcp tests have shown that after 5 years of external use, the sheets stabilized in UV must not show yellowness, brittle character, or loss of luster on the surface; There should be no cracks on the surface or deterioration in the mechanical properties. Furthermore, a good ability to be formed in the trio without fracture, without capillary cracks and / or without white fracture was found in a completely unexpected manner, since the sheet according to the invention can be shaped and bent without the action of the temperature. Furthermore, the measurements have shown that the sheet according to the invention is poorly combustible and poorly flammable, so that it is suitable, for example, for further applications and display construction. The sheet according to the invention can also be recirculated without problems, without contamination of the environment and without loss in mechanical properties, which means that it is particularly suitable for use as short-term advertising signs or other public items.

Fn I A UV-ablazed mode, the sheet has improved stability to weathering and increased UV stability. This means that the sheets are only damaged to an extremely high degree, or are not damaged at all, by the action of weathering and sunlight or by other UV radiation, making the sheets suitable for outdoor applications and / or critical interior applications. In particular, after a number of years of external use, the sheets should show no yellowing, no brittleness or cracks in the surface, or any deterioration in the mechanical properties. The production of the colored amorphous film according to the invention can be carried out, for example, by means of an extrusion process in an extrusion line. Such extrusion line is shown in diagram form in Figure 2. It essentially comprises: - an extruder (1) as a plastification unit, - a slit die (2) as a die for shaping, - a polishing calender / pil (3) as a forming die, - a cooling bed (4) and / or a roller conveyor (5) for subsequent cooling , - separation rollers (6), - a separation saw (7), - an edge trimming device (9) and, if " appropriately, - a stacking device (0)., 1: 1 method comprises drying the glass-free thermoplastic, if appropriate, and then melting it in the extruder, together with the dye and, if appropriate, with the UV stabilizer, forming the molten substance through a daul and then form it, polishing it and cooling it in the polishing pile, before cutting the sheet Its dimension. The process for the production of the sheet in accordance with the invention is described in more detail below using the example of a filled polyethylene film. Preferably, the polyethylene erelate is dried before extrusion at 160-180 ° C for 4 to b hours. The polyethylene teref melts in the extruder. The melt temperature of PET is preferably in the range of 250 to 320 ° C, it being then possible to set the melting temperature essentially both by the temperature of the extruder and by the residence time of the molten substance in the extruder. The color-before (inorganic and / or organic pigments and, if desired, soluble dyes) and, if appropriate, the light stabilizer, can be dosed at the desired concentration by the actual manufacturer of the raw material, or it can be dosed in the extruder during the production of the sheets.

Without "inhaling," particular preference is given to the addition of the coloring additive or additives by means of technology such as the master batch or by the preparation of solid pigment, in this case, the organic and / or inorganic pigment and, if desired, The soluble dye and / or the light stabilizer are completely dispersed in a solid carrier material .. the suitable vehicles are certain reams, the polymer can be colored by itself, or else by others. What are their characteristics? What is the ornant ibi is with the ormoplastic in the sizing It is important that the particle size and the overall density of the preparation not master batch of the solid pigment are similar to the size of the particle and overall density of the silver-plating material, so that homogeneous distribution and therefore color distribution takes place The base substance then leaves the extruder through a die.This die is preferably a slot die. molten by the extruder and formed by means of a slot die is directed by polishing calender rolls, that is, it is intensively cooled and polished. The calender rolls can be arranged, for example, in a T-, F-, L- or S- shape (Figure 3). The PET material can then be cooled on a roller conveyor, trimmed to the size at the edges, cut to length and finally stacked.

K) The thickness of the PET film is determined essentially by the separation placed at the end of the cooling zone, the cooling rollers (puller) coupled to it in terms of speed, and the velocity of the nspo rl a the o 1 oxtrusorporu na part and the dis anciaontr -e The rollers by part ra. The extruder can be used both extruders with a single helix and double helix. The die die preferably comprises the detachable body, the edges and the rest bar for regulating flow through its width. To this end, the restoring bar can be bent with tension and pressure screws. Thickness is adjusted by adjusting the edges. It is important to ensure that the PFT and the edge have a uniform temperature, since otherwise the molten PET flows out in different thicknesses as a result of the different flow paths. The forming die, that is, the polishing calender, gives the molten PET mixture the shape and dimensions. It is carried out by freezing below the glass transition temperature by means of cooling and polishing. In this state it no longer has a conformation, since otherwise surface defects could be formed in this cooled state. For this reason, the calender rolls are preferably driven together. The temperature of the calender rollers must be lower than the temperature of 3h glass melting to avoid adhesion of molten PET. The molten PET leaves the die slot at a temperature of 240 to 300 ° C. The first roller < The temperature is between 50 ° C and 80 ° C, depending on the thickness of the silage and the sheet. The second roller, a little cold, cools the second surface or another. If the temperature of the first roll / roll is outside the established range of 5 ° C to 80 ° C, it is difficult to obtain an amorphous film having a thickness of 1 mm or more in the desired quality. Although the device freezes the PET surfaces as evenly as possible, and the profile is cooled to the degree that it is substantially stable, the subsequent cooling device lowers the temperature of the PET sheet virtually to room temperature. Subsequent cooling may take place on a roller board. The speed of the separation must be precisely coordinated with the speed of the calender rollers to avoid defects and variations in thickness. As additional devices, the extrusion line for the production of sheets may comprise a separating saw as a device for cutting in length, an edge trimmer, a stacking unit and a control station. The edges or margins trimmer is advantageous, since under certain circumstances the thickness in the region of the margin may not be uniform. The thicknesses and visual properties of the window are measured in the co-rotating station. The result is that the surprisingly large number of frames is in prop- erties, 1 to the interior wall in accordance with the invention is destined for a large number of different uses, for example for interior panels, for construction of exhibition and articles and exhibition, for signs, in shop accessories and construction of shelves, as articles of advertising, as menu supports and as basketball table boards In the UV stabilized mode, the sheet according to the invention is also suitable for external applications, such as for example, roofing, exterior panels, covers, for applications in the construction sector and panels for balconies, the invention is illustrated in more detail below with the help of examples of modal idael, without being limited by them. axis edition the individual properties were carried out in the present in accordance with the following patterns or techniques. Measuring centers Surface luster: The surface luster was determined in accordance with DIN 67530. The reflector value is specified as the optical parameter for the surface of a sheet. In accordance with ASTM-D 523-78 and ISO 2813 standards, the angle of incidence was fixed at 20 °. Under the fixed incident angle, a light beam hits the flat surface of the test and is reflected or scattered through it. The rays of light incident on the rotoeleet romeo receiver are indicated as a propoi citonal electrical value. The measurement value is adirnensional and should be indicated along with the angle of incidence. Whiteness Whiteness was ejected with the aid "ie 1 photometer" electric remission "[" LREPHO "from Zeiss, Oberkochern (DE), source C normal light, 2nd normal observer.) Whiteness is defined as: UG = RY + 3RZ - 3RX.UG - whiteness, RY, RZ, RX - corresponding reflection factors when using the Y, Z and X color measuring filter. The white pattern used is a compression molded formed barium sulfate ( DIN 5033, Part 9) Surface defects: Surface defects were determined visually Impact resistance Charpy, an: This value was determined in accordance with ISO 179/1 D. Impact resistance Izod, ak: Resistance The impact with Izod notch or resistance ak is determined in accordance with ISO 180 / 1A Density: The quality was determined in accordance with DEN 53479. VN (DCA), VI (DCA): l vi eo the d i i -ina i VN (DC) is my 11 o in dichloroaoet co in accordance with DIN 53728. The intrinsic viscosity was calculated as follows from the normal viscosity. VT (DCA) - (¡67 X 10-4 VN (DCA) «• 0.118 Thermal Properties: The thermal properties were measured, such as melting point Tf glass, temperature range 1 L za c t , t em pe ra ra tio n s with cold power, I c N and temperature of glass transition Tv, by means of differential scanning calorimetry (DSC) at a heating speed Increasing temperature of 10 ° C per change Molecular weight-, poly speakivity: The molecular weights Mw and Mn and the resultant polydispersivity Mw / Mn were measured by means of the gel penetration chromatography. both sides), UV stability: UV stability was tested as follows in accordance with the ISO 4892 test specification: Test apparment: Internpep srno Atlas Ci 65 Meter Test conditions: ISO 4892, ie simulated intertemporal Irradiation time: 1000 hours (per side) Irradiation: 0.5 U / rn2, 340 nrn 1 or rn pei -a ura :: h 3 ° C Relative humidity: 50% Xenon size: Inter-no and external filter «catho-osil cat o Irradiation cycles: 102 minutes of UV light, after 18 minutes '-, UV light, with sprinkling of the specimens with water, then 102 minutes UV light axis again and so on. In the following examples and comparison examples, the sheets in each case are single layer, opaque in different thickness, produced in the extrusion line described. All the UV-stabilized sheets were exposed to weathering in a continuous 1000 hours per side with Atlas Ci 65 [space] Atlas Orbiter in accordance with the ISO 4892 test specification, and were tested «with respect to the mechanical properties, coloration, surface defects, opacity and luster.

EXAMPLE 1 A white amorphous sheet of 3 nm thickness was produced comprising, as the main constituent, a polymer of polyethylene terephthalate and 6% by weight of titanium dioxide. The titanium dioxide is a rutile type and is coated with an inorganic coating of AI2O3 and with a uniform re-organism of the polymer Ldimet L LX. The titanium dioxide takes an average amount of the particle from it, 0.2 μm. F l torertel of polystyrene from which the film was produced. eoLoi t-eni a normal viscosity VN (DCA) ele 1010, which gives an intrinsic viscosity VI (DCA) of dL / g. The moisture content is > ().?% and ia «Jensity (DIN 53479) is L.41 g / crn3. The 59% real estate, the crystal melting point according to DSC measurements is 258 ° 0. The temperature scale "The temperature between 83 ° C and 2 ° C" at the temperature and the post-exposure temperature.

(Also The glass temperature at (river) I ~ CN is 144 ° C. The polymer dispersion Mw / Mn of polyethylene terephthalate polymer 2.14 The glass transition temperature is The organic dioxide was added in the form of a masterbatch.The masterbatch is composed of 3 (1% by weight of dioxide described as the active component and 70% by weight). of the polyethylene terephthalate polymer described as the vehicle axle material Before extrusion, 80% by weight of the polyethylene terephthalate or 20% by weight of the titanium dioxide of the batch was dried in a dryer at 170 ° C for 5 hours, and then extruded in a single-screw extruder at an extrusion temperature of 286 ° C through a die cut on a polishing calender, the rollers Which are arranged in the form of S, and polished to form a a 3 in. thick sheet. The first roll calender theme a temperature of 73"C and the subsequent rolls each have a temperature of 67 ° C. The speed of the separation and do the roller '', calander €? S 6.5 m / m. After cooling thereafter, the 3-millimeter-thick PET-white sheet was cut out at the edges with separating saws, cut to length and stacked, the sheet produced, which was white in color. , shows the following red areas <Jes: - Thickness: - 3 mm - Surface luster 1Q side: 128 (measurement angle of 20 °) 2? side: 127 - Light transmission: 0% - Whiteness: 110 - Color: white, homogeneous - Surface defects: none (spots, bubbles, appearance of orange peel) - Impact resistance Charpy, an: no fracture - Impact resistance with notch Izod, k: 4.8 k J / rn2 - Cold forming: good - Cstability: 0% EXAMPLE 2 A colored sheet was produced in a manner analogous to the L design; A tere phthalate of polyethylene was used, which has the following properties: VN (DCA): 1100 VI (DCA): 0.85 di / y Density: 1. 38 g / crn3 10 Cp sta fi lity: 44% Melting point Tf: 245 ° C Scale of t emperature t ura cr tisation Tc: 82 ° C to 245 ° C Crystallization temperature 'L5 posterior (cold ) TC N: 152 ° C Polydispersity Mw / Mn: 2.02 Glass transition temperature: 82 ° C The master batch of titanium dioxide is composed of 30% by weight of the titanium dioxide described under example 1 and 70% by weight of the polyethylene terephthalate of this example. The extrusion temperature is 280 ° C. The first The calender roll had a temperature of 66 ° C and the subsequent rolls had a temperature of 60 ° C. The speed of the separation and of the calender rollers is 2.9 m / rninuto.

The PET film produced, which is opaque white, has the following properties: Thickness 6 rnrn Surface luster, 19 side 121 (measurement angle of 20 °) 2 side 118 Light transmission 0% Whiteness 1 3 White, homogeneous color defects No surface defects (spots, bubbles, appearance of shell of orange) Impact resistance without fracture «Je Charpy, an Impact resistance 5.1 kJ / rn2 with notch Izod, ak Cold forming good Cri tality 0% EXAMPLE 3 A colored sheet is produced analogously to Example 2. The extrusion temperature is 275 ° C. The first roll of the calender has a temperature of 57 ° C, and the subsequent rolls have a temperature of 50 ° C. The speed of the separation and the rollers of the calender is 1.7 m / min. The PET film produced has the following profile of materials: Thickness 10 inrn Surface area, 1Q side 116 (measurement angle e 20 °) 2Q Side 114 Light transmission 0% Whiteness 132 White, homogeneous color Surface defects none (spots, bubbles, appearance 'Je orange peel) Resistance to impact without Charpy fracture, an Impact resistance 5.3 kJ / rn * with Izod notch, ak Good cold forming Cstability 0% EXAMPLE 4 A colored sheet is produced analogously to Example 3, a polyethylene terephthalate having the following properties being used: VN (DCA): 1200 VI (DCA): 0.91 dl / g Density: 1.37 g / crn3 Cpst at the nity 36% Melting point of glass, Tm 242 ° C Scale «Je temperature crystallization, Tc 82 ° C a 242"C Subsequent chill temperature (in trio), TCN 157 ° C Pol? D? S? Er '&?,? Dae |, Mw / Mn 2 2 1 en t ransi c t ele glass 82 ° C The masterbatch of titanium dioxide is composed of 30% by weight of the titanium dioxide described in Example 1 and 70% by weight of the polypethylene terephthalate polymer of this example. The extrusion temperature is 274 ° C. The roller of the calender has a temperature of 50 ° C, and the subsequent rolls have a temperature of 45 ° C. The speed of separation and rollers of the calender is 1.2 rn / minute. The white PET film produced has the following properties profile: Thickness- 15 rnrn Surface luster, IQ side 112 (measuring angle of 20 °) 2Q side 111 Light transmission 0% White to 138 White, homogeneous coloring Surface defects or ngo (spots, bubbles, appearance of orange peel) ) Impact resistance without Charpy profile, an Impact resistance 5.4 kJ m2 with notch Izod, k With fo r'in AC I On in f "ri o good Cr is L iity 0.4% EXAMPLE 5 A colored sheet is produced analogously to Example 2. 50% by weight of the polyethylene terephthalate polymer of Example 2 is mixed with 30% by weight of the recirculated material of this polyethylene terephthalate polymer and 20% by weight of the master batch of titanium dioxide. The colored PET sheet produced has the following properties profile: Thickness- 6 rnrn Surface luster, 1Q side 119 (measurement angle of 20 °) 2Q side 118 Light transmission 0% Whiteness 125 White, homogeneous coloring Surface defects none (spots, bubbles, appearance of orange peel) Resistance to impact sn Charpy fracture, an Impact resistance 5.0 k 3 /? N2 with entall Izod, Confoi-mac on in (good river C pstalni ad 0% EXAMPLE 6 A colored sheet is produced analogously to Example i. The plate is not white, but color-ver. The 3-in-thick-thick sheet comprises as a main constituent the polyethylene terephthalate polymer of the 1-axis, and 7% by weight of the green pigment 1 7. The pigment ver'de 17 is a chromium oxide ( Cr-203) from BASF (R icopalgrun 9996). Like titanium dioxide, chromium oxide is added in the form of a master batch. The masterbatch is composed of 35% by weight of chromium oxide (R icopalgrun 9996) and 65% by weight of the polyethylene terephthalate polymer of Example 1. Before extrusion, 80% by weight of the polyethylene terephthalate polymer of the Example 1 was mixed with 20% in 30 weight of the masterbatch of chromium oxide, and the mixture was dried at 170 ° C for b hours. Then, a 3 mm thick green sheet was prepared, as described in Example 1, which has the following properties: Thickness '3 rnm Luster' surface, LO side 130 (elementary angle 20 °) 2 or side L29 T ra n srn isin 1 uz 0.5% Coloration ver-de, homogeneous Surface defects none (stains, bubbles, orange peel appearance) Impact resistance without Charpy fracture, an Impact Resistance 4.6 kJ / rn2 with Izod notch, a Good cold conformation Cpst 0% ality EXAMPLE 7 A colored sheet is produced analogously to Example 2. The sheet comprises 3% by weight of titanium dioxide and 3.5% by weight of chromium oxide. The master batch of titanium dioxide is composed of 30% by weight of the titanium dioxide deciphered in Example 1 and do < )% polymer weight e? terertalate «Je pol? et i lene of example 2. 1-1 master batch ek; Chromium oxide is composed of % by weight of the chromium oxide described in *? L Example 6 (Sieopalgrun 9996) and (H 65% by weight of the polyurethane torephthalate polymer? Wood of the ebony 2. Before the extrusion, 80% in The weight of the polyethylene terephthalate polymer of Example 2 was mixed with 10% by weight of the masterbatch of titanium dioxide and 10% by weight of the master batch of chromium oxide, and the mixture was 170 C for 5 hours, then a sheet of 6 rn thickness was prepared, as described in Example 2, and it has the following? Ols: E pesorhm Surface luster, LO side 125 (20 ° measurement angle) 20 side 125 Light transmission 0.% Dull green color, homogeneous Surface defects none (spots, bubbles, appearance of orange peel) Resistance to impact without fracture e Charpy, an Impact resistance 5.3 I / rn2 with Izod notch, to cold forming good Crystal my 0% COMPARATIVE EXAMPLE 1 A colored sheet is produced analogously to Example L. The "polyethylene terephthalate" has a normal viscosity VN (DCA) "le 60, which corresponds to an intrinsic viscosity VT (DCA). g. The various properties are identical to the properties of polyethylene terephthalate in the context of measurement accuracy. The master batch of titanium dioxide, the parameters of the process and the temperature, are chosen as in Example 1. As "low viscosity" results, no sheet production is possible. The stability of the molten bath is inadequate, so that the molten bath collapses before cooling on the rollers of the calender.

COMPARATIVE EXAMPLE 2 A colored sheet is produced analogously to Example 2, the polyethylene terephthalate of Example 2 and the master batch of titanium dioxide of the same example being also used. The first roller of the "Jpa" pipe has a temperature of 83 ° C, and the subsequent rolls each have a temperature of 77 ° C. 1-1 luster decreases significantly. The sheet shows defects and surface structures. The optical properties are unacceptable for a color application. The laminate produced has the following profile of properties: Thickness 6 rnm l ustre of surface, 1Q side 85 i ne; hs light and dark) (angle of measurement of 20 °) 2O side 82 (light and dark spots) Transmission of light 0% Coloring appears heterogeneous, since the surface shows structures, bubbles and cracks important Surface defects appear heterogeneous, since (stains, bubbles, the surface shows cracks, bubbles and cracks imde orange) bearing Impact resistance without Charpy fracture, an Impact resistance 5.1 J / rn2 with Izod notch, a good cold shaping glass my roughly 0% EXAMPLE 8 An amorphous sheet, white in color, stabilized with UV light and 3 m thick. The main constituent b comprises the polyethylene terephthalate according to Example i, and 6% by weight of titanium dioxide and 1. (1% by weight, eg, the UV light emitter 2 (4, 6 - di feni 1 - 1, 3, 5 - 1 nazi n-2- 1) - b- (he? l) ox? phenol (RT? nuv? n 1 b? 7 from C? ba axis - (-) or The gypsum is produced analogously to the L. 10 The 1 muvín lb 7 has a melting point of L49 ° C and is thermostable up to approximately J30 ° C. L% by weight of the UV stabilizer Tinuvín is incorporated in the polyethylene terephthalate directly by the producer of the raw material 15 Before extrusion, 80% by weight of the treated polyethylene terephthalate with 1.0% by weight of Tinuvín 1577 and 20% by weight of the masterbatch of dioxide titanium, are dried in a dryer at 170 ° C for 5 hours.The white-colored sheet produced shows the same properties as the sheet according to Example 1. After each time in each case for 1000 hours s per side with Atlas Ci 65 T blank space gauge], the PET foil shows the following ? F¡ properties: Thickness 3 rnrn Superficial luster, 1Q the < Jo L25 (angle "Measuring 20") 2O side 123 Transmission "Light 0% Whiteness 108% White, homogeneous color Surface defects none (cracks, broken character) Resi stene to mpaet or without frac a de Charpy, an Impact resistance 4.6 kJ / m2 with Izod notch, ak Cold forming good Cristallity 0% EXAMPLE 9 A colored sheet stabilized with UV light using 1% by weight of Tmuvín 1577 is produced analogously to Example 8, the polyethylene terephthalate being used according to Example 2. The masterbatch of titanium dioxide is composed of 30% by weight of the titanium dioxide described in Example 1 and 70% by weight of the polyethylene terephthalate of this example. The extrusion temperature is 280 ° C. The first roller of the calender has a temperature of 66 ° C, and the subsequent rollers t Leñen a temperature of hO ° C. The speed of the separation and the rollers of the calender is 2.9 m / minute. The procedure used here corresponds to that in accordance with the E e pLo 2. The laminate produced, which is opaque white, has the same properties as the laminate according to Example 2. After that, the tempore in each case for L000 hours on the side with an inteiperi sine meter AtLas Ci 65 fespacio in white], the PET sheet shows the following properties: Thickness 6 inrn Surface luster, 1Q side 118 (20 ° measurement angle) 2Q side 117 Light transmission 0% Whiteness 121% White, homogeneous whiteness Surface defects none (cracks, brittleness) Impact resistance without fracture Charpy, an Resistance to impact 5. 0 k J / rn2 with entall to Tzod, ak Cold forming good Cristalimidad 0% 4 b EXAMPLE 10 A colored laminate stabilized with UV light using 1% by weight muvin 1577 is produced analogously? to Example 9. The extrusion temperature is 275"C. The first roll of the calender has a temperature of 57" C, and the subsequent rolls have a temperature of 50 ° C. The speed of the separation and the rollers of the calender is 1.7 rn / minute. The procedure used here corresponds to the procedure according to Example 3. The PET sheet produced has the same profile of properties as the sheet in accordance with Example 3. After internpeaking in each case for 1000 hours per side with int meter. e peri ino Atlas Ci 65 [blank space], The PET sheet shows the following properties: Thickness 10 inrn Surface luster, IQ side 115 (20 ° measuring angle) 2O side 112 Light transmission 0% Whiteness 128% White, homogeneous White surface defects none (cracks, brittleness) Resistance < «1 impact; i) Charpy's behavior, impact resistance 2 kJ / rn2 with ontalLzod, k (cold ionization ion | -> uona Ci'i stalini d d% EXAMPLE 11 A colored sheet stabilized with UV light use »1% by weight Tinuvm axis 1577 se? This is analogous to Example 10, the polyethylene terephthalate described in Example 4 being used. The masterbatch of titanium dioxide is composed of 30% by weight of the titanium dioxide described in Example 1 and 70% by weight of the polyethylene terephthalate in this example. The extrusion temperature is 274 ° C. The first roller of the calender has a temperature of 50 ° C, and the subsequent rollers have a temperature of 45 ° C. The speed of separation and rollers of the calender is 1.2 rn / minute. The process used here corresponds to that according to Example 4. The white PET film produced shows the same profile of properties as the sheet according to Example 4. Afterwards, each step is repeated during 1000 4 I Hours per Side with an Attendance Meter At Cl 65 [bl oc space], the PFT amine shows the following pro ages: L weight 15 rnm Surface luster, LO side 110 (measuring angle of 20 °) 2 < > side 109 Transmission of lu; 0% Whiteness 1 4% White color, homogeneous Surface defects not one (cracks, brittle character) Impact resistance without Charpy fracture, an Impact resistance 5.2 kJ / rn2 with notch Tzod, a Cold forming b na Crista Unit 0.4% EXAMPLE 12 A colored sheet stabilized with UV light using 1.0% by weight of RTinuvm is produced analogously to Example 9. 50% by weight of the polyetheylene terephthalate of Example 2 is mixed with 30% by weight of the recycled material of this polyethylene terephthalate and % by weight of the master batch of titanium dioxide.

The procedure used here corresponds to the procedure of con orm with Example 5. The colored PET sheet produced shows the same profile of properties as the sheet in accordance with Example 5. After each time during each case, it has been operated for 1000 hours. On the other hand with internpepsrno meter Atlas Ci 65 [blank], the sheet of PF I "shows the following properties: Thickness 6 rnm Surface luster, 1O side 116 (measurement angle of 20 °) 2O Side 116 Light transmission 0% Whiteness 122% Anchoring, homogeneous Surface defects neither n one (cracks, brittleness) Impact resistance without fracture of Charpy, an Impact resistance 4.7 kJ / 2 with Izod notch, ak Cold conformation good Crystallinity 0% EXAMPLE 13 A white sheet is produced analogously to Example 9. 0.8% by weight of the UV light stabilizer? ,? '-meta len-b? s- (6- (2H-benzotpazol-2-? 1) -4- (1,1,3,3-tetrainet lbut 11) -phenol (RTmuv? n 360 from Ciha- Goigy), as a basis for the weight of the polymer, is used as the stabilizer for the UV light, the 360 degree has a melting point of 195 ° C and is torrible until approximately 350 °. C "Corno in Fjernplo 8, 0.8% by weight of the UV light stabilizer Tinuvín 360 is incorporated directly into the polyethylene terephthalate filled by the producer of the pruna materials The laminate produced stabilized with UV light has the following properties: Thickness 6 RNIN Luster surface side 1O 123 (measurement angle 20 ° of) 2O Light transmission side 122 0. 128% Whiteness Color white, homogeneous Surface defects none (smudges, bubbles, orange peel appearance) bO Resistance to the impact of the Chai fracture and, an Impact resistance 5.2 kJ / rn with notch Izod, k Co cold formation good Crystal i nity 0% After "inspecting each case for 1000 hours per side with Atlas CL 65 internappearing meter, the PET sheet shows the following properties: Thickness 6 rnrn luster surface, side 118 (measurement angle 20 ° of) 2O side L17 0% light transmission 123% Whiteness Color white, homogeneous Surface defects none (cracks, car'acter- "brittle) resistance nnpacto no Charpy fracture, an Impact resistance 5.0 kJ / rt) 2 with Izod notch, ak Good cold forming Cristalimity 0% COMPARATIVE EXAMPLE 3 A L.imi na "Je white colored STABILIZER hoisted UV análogamen occurs and the l 'ernpLo 8. polyethylen terephthalate Fl Leño used has a normal viscosity VN (DCA) of 760, and | ue corresponds to an intrinsic vi cosity VT (OCA) of 0.62 dl / g. The other properties are identical to the properties of the full polystyrene terephthalate of Example L in the context of the accuracy of the measurement. The masterbatch and titanium dioxide, the parameters of the procedure and the temperature, are chosen as in example 1. As a result of the low viscosity, none of the laminates is possible. The stability of the molten bath is inadequate, so < The molten bath is collapsed before cooling on the rollers of the calender.

COMPARATIVE EXAMPLE 4 The sheet obtained according to Example 1 and corresponding to the sheet according to Example 8, but which does not comprise a UV light stabilizer, is exposed to mtenperisin. After inspecting in each case for 1000 hours per side with Atlas Ci 65 miterperisrno meter [blank], the PET sheet shows the following properties: F- pesor 3 rnrn Luster surface iO side 88 (measuring angle 20 °) 2O side 86 Transmi light ion Blane 0%; 81% Co1oi ura-1 acion b1anqu zca- love the defects superf ICIE the LC superf Is it (cracks, e: dark character and shows brittle) arnanl lamiento irnpo t ante? Resistance to impact complete fracture at 44.2 k. "J / rn2 < 1e Charpy, an Impact resistance 1.6 kJ / m2 with notch Ezod, ak Cold forming cracking Crystal in ciad 0% Considered visually, the sheet shows a positive balance.

EXAMPLE 1 An amorphous sheet of white color and 3 nm thick was produced which comprises, as a main constituent, polyethylene terephthalate and 6% by weight of titanium dioxide. The titanium dioxide is of the rutile type and is coated with an inorganic coating of A12O3 and with an organic coating of pol i dirnet i Lsi loxane. IIL Titanium dioxide has an average particle diameter of «0.2 jm. The polyethylene terephthalate from which the colored sheet is produced has a normal viscosity VN (DCA) of 3490, < | ue corresponds to an intrinsic viscosity VI (DCA) of 2.45 dl / g. The moisture content is < 0.2% and density (DIN 53479) is 1.35 g / crn3. The Linity crystal is 19%, and the crystal melting point according to DSC measurements is 243 ° C. The temperature scale of the Tc temperature is between 82 ° C and 243 ° C. The polystyrene density Mw / Mn of the polyethylene terephthalate is "Je 4.3, Mw being 225.070 g / mol and Mn of 52,400 g / mol. The transition temperature «Je glass is 83 ° C. The titanium dioxide is added in the form of a master batch. The masterbatch is composed of 30% by weight of the titanium dioxide described as the active component of the compound and 70% by weight of the polyethylene terephthalate described as the carrier material. Before extrusion, 80% by weight of the polyethylene terephthalate and 20% by weight of the titanium dioxide masterbatch are dried in a dryer at 170 ° C for 5 hours, and then extruded in an individual worm extruder at an extrusion temperature. of 286 ° C through a die «Slot on a polishing calender, whose rollers are arranged in an S-shape, and polished to a sheet 3 rnrn thick *. The first roller of the calender has a temperature of 73 ° C, and the subsequent rolls have each a temperature of h7 ° 0. The speed of the separation and the rollers of the calender is 6.5 rn / rninuto. After the subsequent cooling, the 3 mm thick white PET sheet is cut at the edges with separation saws and cut lengthwise and stacked. The white laminate produced, which is colored, shows the following properties: Thickness 3 mm Surface luster, 1O side 131 (measuring angle of 20 °) 2O Side 129 Light transmission 0.% Whiteness 112 White, homogeneous color Defects on the surface none (spots, bubbles, appearance of orange peel) and similar) Impact resistance without Charpy fracture, an Impact resistance 4.8 kJ / rn2 with Izod notch, ak Cold conformation good Crystallinity 0% EXAMPLE 15 A colored sheet is produced analogously to Example 14, with a terephthalate being used as a polyethylene that has the following properties: VN (DCA): 2717 V l (DCA): 1.9"Jl / g Density: 1. .38 g / crn3 LL) Cpstability: 44% Melting point of glass, Tm: 245 ° C Crystallization temperature scale, Tc: 82 ° C to 245 ° C M "175.640 g / rnol Mn 49.580 g / mol Polydispersity, Mw / Mn: 2.02 Glass transition temperature: B2 ° C The master batch of titanium dioxide is composed of 30% by weight of the titanium dioxide described in Example 15 and 70% by weight of the polyethylene terephthalate of this example. The extrusion temperature is 280 ° C. The first calender roller has a temperature of 66 ° C, and subsequent rollers have a temperature of 60 ° C. The speed of the separation and the rollers of the calender is 2.9 m / minute. The PFT sheet produced, which is opaque white, has the following properties: Thickness 6 mm Surface luster, LO side 124 (medium angle of 20 °) 2O side 121 [light transmission 0% Whiteness L25 White, homogeneous color Surface defects none (spots, bubbles, appearance of orange peel and similar) Impact resistance s Charpy fracture, an Impact resistance 5.1 k3 / rn2 with Izod notch, ak Cold conformation good Cristalimity 0% EXAMPLE 16 A colored sheet is produced analogously to Example 15. The extrusion temperature is 275 ° C. The first roll of the calender has a temperature of 57 ° C, and the subsequent rolls have a temperature of 50 ° C. The speed of the separation and the rollers of the calender is 1.7 m / immuto.

The production of PET produced has the following properties: Thickness 10 inm Surface luster, 1O side 118 (angle of measurement of 20 ° J 2O side 115 Light transmission 0% Whiteness 134 White color, homogeneous Defects on the surface none (spots, bubbles, appearance of orange peel and the like) ) Impact resistance without Charpy fracture, an Impact resistance 5.3 kJ / rn2 with Izod notch, ak Cold conformation good Crystallinity 0% EXAMPLE 17 A colored sheet is produced analogously to Example 16, with a polyethylene terephthalate having the following properties: VN (DCA) 3173 VI (DCA) 2. 23 dl / g Density 1. 34 g / crn3 Cpstalinity: 12% Melting point of glass, Tm: 240 ° C Crystallization temperature scale, Tc: 82"C to 240 ° C Mw 204,660 g / mol Mn 55,952" j / mol Polidisper- sity, Mw / Mn: 3.66 Glass transition temperature: B2 ° C The lot? The titanium dioxide master is composed of 30% by weight of the titanium dioxide described in example 14 and 70% by weight of the polyethylene terephthalate of this example. The extrusion temperature is 274 ° C. The first roll of the calender has a temperature of 50 ° C, and the subsequent rolls have a temperature of 45 ° C. The speed of separation and "He rolls the calender is 1.2 in / minute. The white PET film produced, has the following properties: Thickness 15 rnm Surface luster, 1O side 115 (measurement angle of 20 °) 2O side 112 Light transmission 0% Whiteness 141 Col or rae; White ion, homogeneous Surface defects ng (spots, bubbles, orange peel appearance and similar) Resistance to impact if Chat-py fracture, Res i s t enc; i a l impact 5.4 kD / rn2 with Izod notch, Cold forming good Orí s al i ni dad 0% EXAMPLE 18 A colored sheet is produced analogously to Example 15. 50% by weight of the poly terephthalate filled with the Example 15 is mixed with 30% by weight of the recycled material of this polyethylene terephthalate and 20% by weight of the master batch of lithium oxide. The colored PET sheet produced has the following profile of properties: Thickness- 6 rnrn Luster, 1O side 121 (20 ° angle of measurement) 2nd side 120 Light transmission 0% Whiteness 127 White, homogeneous coloration Surface de fi ciencies or none (stains, bubbles, appearance of the skin) orange and the like) Re i tence to the syncret agreement of Char-py, an Impact Resistance 5.0 I / rn2 with notch I or «l, a Conformaci n in B rio n C a st of 0% EXAMPLE 19 A colored sheet is produced analogously to Example L4. The sheet is not white, but green. The green colored sheet of 3 in. Thickness comprises as principal constituent the full poly tere talate of Example 14, and 7% by weight of green pigment 17. The pigment see-of-17 is a chromium oxide (C-). 203) from BASF (R SicopaLgrun 9996). In the same way as titanium dioxide, chromium oxide is added in the form of a masterbatch. The masterbatch is composed of 35% by weight of chromium oxide (R icopalgrun 9996) and 65% by weight of the polyethylene terephthalate of Example 14. Before axis The extrusion, 80% by weight of the polyethylene terephthalate of Example 14 it was mixed with 20% by weight of the master batch of chromium oxide, and the mixture was dried at 170 ° C for 5 hours. Then, a green sheet of 3 mm thickness was prepared, as described in Example 14, which has the following properties: Thickness' 3 rmn Surface thickness, LO side 128 (angle and measurement 20 °) 2O side 126 Transmission light 0.2% Green color, homogeneous Defects «Jo surface none (spots, bubbles, orange-peel appearance and similar) Impact resistance without Charpy fracture, an Impact resistance 4.6 kJ / rn2 with Izod notch, ak Cold forming good Cpstallity 0% EXAMPLE 20 A colored sheet is produced analogously to Example 15. The sheet comprises 3% by weight of titanium dioxide and 3.5% by weight of chromium oxide. The master batch of titanium dioxide is composed of 30% by weight of the titanium dioxide described in Example 14 and 70% by weight of the polyetheylene terephthalate polymer of Example 15. The master batch of chromium oxide is composed of 35 wt.% of the chromium oxide described in Example 19 (Sieopalgrun 9996) and 65 wt.% of the terertalate compound, as described in Example 15. Before extrusion, 80% by weight of the terertalate of poLiet Filled from Example 15 was mixed with 10% by weight of master batch of titamo dioxide and 10% by weight of master batch of chromium oxide, and the mixture was dried at 170 ° C for 5 hours. Next, a 6-millimeter sheet of bracelet was prepared as described in Example 15, which has the following per- "Je pi? P i e a < them: Thickness- 6 rnm Surface luster, 1O side 126 (measuring angle "Je 20 °) 2O the« Jo 124 Light transmission 0.% Green color cLar opaque, homogeneous Defects «surface none (spots, bubbles, appearance of orange peel and similar) Impact resistance without Charpy fracture, an Impact resistance 5.3 k "J / rn2 with Izod notch, ak Good cold forming Cpstamity 0% EXAMPLE 21 A colored amorphous sheet of 3 in. Thick is composed, as a principal constituent, of polyethylene terephthalate and titanium dioxide, for example, 14 and 1.0% by weight of the UV light stabilizer 2- (4,6-d? Fem). ll, 3, 5- triazm-2-? l) -5- (hex 1) ox? phenol (RTmuvm 1577 from Ciba-üeigy), is produced analogously to Example 1. The Tinuv 1577 has a melting point of 149 ° C and is terruable up to about 330 ° C. 1% by weight of the stabilizer «ie UV light is incorporated into the polyethylene terephthalate directly by the producer- of the raw materials. The drying, extrusion and process parameters are selected as in example 14. The laminate produced, which is white, shows the following properties: Thickness' 3 rnrn Surface luster, IO side 130 (measuring angle of 20 °) 2O «Jo 129 Light transmission 0% Whiteness 114 White, homogeneous coloring Surface defects none (spots, bubbles, orange peel appearance and Similar) Impact resistance without Charpy fracture, Resistance to the rnpact 4.8 k / rn2 with in al Izo d, ak Cold conformation good Cnstalinidad 0% After "1e integpenzar in each case the 1000 hours per side with internpepsmo meter Atlas Cl 65, The PET sheet shows the following properties: Thickness- 3 rnrn Surface luster, 1O side 126 (20 ° measurement angle) 2O side 125 Light transmission 0% Whiteness 110% White, homogeneous column Surface defects none (cracks, brittleness) Impact resistance without fracture Charpy, an Impact resistance 4.6 k3 / rn2 with notch Izod, ak Cold forming good Cstability 0% 55 EXAMPLE 22 A colored amorphous sheet 3 rnrn thick is produced analogously to example 21. The UV light stabilizer b 2 ~ (4, 6 ~ eJ? Feml-1, 3, 5-tr? Azm -2-Ll) -5 - (hex LL) -oxyphene (R Ti nuvm 1577) is measured in the form of a master batch. The masterbatch is composed of 5 wt.% Of RTmuv? N L577 as the active component of the compound, and 95 wt.% Of the polyethylene terephthalate of example 14. 0 Before «extrusion, 60% by weight of the polyethylene terephthalate and 20% by weight of the titanium dioxide masterbatch of example 14 are dried with 20% by weight of the masterbatch at 170 ° C for 5 hours. The extrusion and the production of the sheet are carried out analogously to example 14. The white colored sheet produced shows the following properties: Thickness 3 rnm Surface luster, 1O side 129 0 (20 ° measurement angle) 2O side 128 Light transmission 0% Whiteness 112 White, homogeneous coloring 5 Surface defects none (spots, bubbles, appearance of orange peel and the like ) Impact resistance without t-tur tur-a «Charpy, an Impact Resistance 4.6 kJ / m2 with e nt a 1 L a E od, o Cool cold forming C o mity 0% After inspecting in each case for 1000 hours per side with an Atlas CL 65 in-line meter, the PET sheet shows the following properties: Thickness - 3mm Surface luster, 1O side 126 (20º axis measurement angle) 2O side 124 Light transmission 0% Whiteness 109 White, homogeneous coloring Surface defects none (cracks, brittle character) Impact resistance without Charpy fracture , an Impact resistance 4.3 kJ / rn2 with Izod notch, a Cold forming good Cristalimity 0%

Claims (5)

1. NOVELTY OF THE INVENTION CLAIMS 1. An amorphous sheet of coleo quo + Lene a thickness in the scale from 1 to 20 nm, comprising, as a principal constituent, a thermoplastic thermoplastic and at least one dye selected from organic and inorganic pigment, the concentration of the pigment being on the scale of 0.5 to 30% by weight, based on the weight of the thermoplastic and co-stabilizable.
2. 2. A sheet as described in rei indication 1, wherein the sheet additionally comprises a soluble dye.
3. 3. A sheet as described in the claim 2, wherein the concentration of the soluble dye is in the range of 0.001 to 20% by weight, based on the weight of the critical teapnoplastic.
4. 4. A sheet as described in claim 2 or 3, wherein the soluble dye is an azo or anthraquinone dye soluble in fats and aromatics.
5. 5. A sheet as described in one of the preceding claims, wherein the surface luster, measured in accordance with DIN 67530 (measurement angle of 20 °), is greater than 90. 6.- A sheet as shown in FIG. described in at least one of the preceding claims, wherein the transmission of Light, measured in accordance with ASTM D 1003, c.s less than 5%. 7. A sheet as described in a preceding claim, wherein the used plastic material has a normal viscosity VN (DCA), measured in di-chloroacetic acid in accordance with DTN 53728, ie on the scale from 800 to 6000. 8.- A Lamina as described in La reiviicación 8, where the standardized thermoplastic material used has a normal viscosity VN (DCA), measured in dichloroacetic acid in accordance with DIN 53728, which is in the range of 950 to 5000. 9.- A sheet as described in one of the preceding claims, which has a degree of crystallinity of less than 5%. 10. A sheet as described in one of the preceding claims, wherein the stanizable copolyplastic is selected from full poly (terephthalate), polybutylene terephthalate (PBT), a cycloolefin polymer and a copolyol. cycloolefin grouper. 11. A sheet as described in the claim 11, where the polyethylene terephthalate is used as the crystallizable terrnoplastic. 12. A sheet as described in the notice 12, wherein the polyethylene terephthalate comprises recirculated polyethylene terephthalate material. 13. A laminate as described in claim 1 or L3, where no fracture occurs during the measurement of Charpy's impact resistance, as measured with ESO 179 / lD. 14. A sheet as described in one of claims 12 to 14, wherein the Izod impact strength, ak, measured in accordance with IO 180 / iA, is on the scale from 2.04 to 8.0. k 3 /? n2. 15. - A sheet as described? in one of claims 12 to 15, wherein the polyethylene teiophthalate has a glass axis fusion axis point, measured by DSC at a heating rate of 1 ° C / mm, on the scale from 220 ° to 280 ° C . 16. A sheet as described in one of claims 12 to 16, wherein the polyethylene terephthalate has a crystallization temperature, measured by DSC with a heating rate "Je 10 ° / rn? Nuto, on the scale from 75 ° to 200 ° C. 17. A sheet as described in one of claims 12 to 17, wherein the polyethylene terephthalate used has a stability on the scale of 5 to 65%. 18. A sheet as described in one of the preceding claims, further comprising a UV light stabilizer. 19. A sheet as described in the claim 19, wherein the concentration of the UV light stabilizer is on the scale < 1T 0.01 to 5% by weight, based on the weight of the last tablet. 20 .-- A sheet like < -e described in the 19 th or 20 th decade, where at least one UV light-emitting lamp was selected from 2-hydroxybenzot pazoles and triethols. 21, .- A sheet like? describes in the claim 21, wherein at least one UV light stabilizer selected from 2- (4,6-d? Fem 1-1, 3, 5 -tr? Az? N-2 -11) -5- ( hexyl) oxy-phenol and 2,2 '-inet ilen -bi s (fi - (2H-benzotrol azol-2-yl) -4- (1,1,3,3-tetramet-ilbutyl) -phenol. A process for producing an amorphous sheet of color as described in one of the preceding claims, comprising the following steps: melting the crystallizable terrnoplastic together with the colorant in an extruder, configuring the molten bath through a die and dimensional-, polish- and then cool with at least two rollers in the polishing pile, before the sheet is cut into sizes, the first roll of the polishing stack having a temperature on the scale of 50DC to 80 ° C. The process as described in claim 23, wherein the crystallizable terrnoplastic is dried before being melted, The method as described in claim 23 or 24, in where the UV light stabilizer is melted in the extruder 'together with the dye and the thermoplastic. 25. The process as described in one of claims 23 to 25, wherein the addition of the dye and / or the UV light shaft abl is carried out by the technology of the master batch. 26.- The procedure is described in one of? claims 23 to 26, wherein the PET is used as the thermoplasti co cri al izable. 27.- The procedure as described in re 27, where the PET dries at 160 to 180 ° C "for 4 to 6 hours before" It will be melted, 28.- The procedure as described in claim 27 or 28, wherein the temperature of the molten PET bath is in the range of 250 to 320) C. 29. The use of a colored amorphous sheet as described in one of claims 1 to 22 for indoor applications and in exhibit construction. 30. The use in the air of the sheets treated with a UV light stabilizer as described in one of claims 19 to 22.