EP4028465A1 - High-voltage components - Google Patents

Abstract

The invention relates to high-voltage components, in particular for electromobility, containing polymer compositions based on at least one polyester and at least one sulfide containing cerium. The invention also relates to the use thereof for producing polyester-based high-voltage components or for marking polyester-based products as high-voltage components using a laser.

Description

High-voltage components

The present invention relates to high-voltage components, in particular for electromobility, containing polymer compositions based on at least one polyester and at least one sulfide containing cerium, and their use for producing polyester-based high-voltage components or for marking polyester-based products as high-voltage components by means of lasers.

State of the art

Engineering thermoplastics such as polyester are an important material due to their good mechanical stability, chemical resistance, very good electrical properties and good processability, especially in the area of components for motor vehicles.

For many years, polyesters have been an important part of the manufacture of sophisticated automotive components. While the combustion engine has been the dominant drive concept for many years, the search for alternative drive concepts has also resulted in new requirements with regard to the choice of materials. Electromobility plays an important role here, in which the combustion engine is partially (hybrid vehicle [HEV, PHEV, BEV Rex]) or completely (electromobile [BEV. FCEV]) replaced by one or more electric motors that typically use their electrical energy Obtain batteries or fuel cells. While conventional vehicles with internal combustion engines as the sole drive (ICE [Internal Combustion Engine]) typically get by with an on-board voltage network of 12V, in hybrid and electric vehicles with electric motors as the drive unit, significantly higher voltages are required. For the direct area and the immediate vicinity of such high-voltage parts, this represents a serious additional risk potential, which is increasingly playing a role in technical specifications or normatively. The clear identification of these hazard areas plays an important role in this way, in order to avoid unintentional contact with a person (driver, mechanic, ...), whereby the clear color coding of such high-voltage assemblies plays a particularly important role.

The Advanced Vehicle Team of the Idaho National Laboratory for HEV (Hybrid Electric Vehical) has published a technical specification for all devices in https://avt.inl.gov/sites/default/files/pdf/hev/hevtechspecr1.pdf , which are exposed to a high voltage greater than or equal to 60V, including a clear Labeling as "HIGH VOLTAGE" recommends and in this context also refers to the color orange as a label.

Due to the high processing temperatures of sometimes> 300 ° C in compounding and injection molding, the choice of suitable colorants for the color orange is very limited, especially for engineering thermoplastics such as polyester.

WO 01/42371 A1 discloses polymer compositions based on Uralac® SN800, a polyester. _{According to claim 16, C 2} S ₃ can be used as the rare earth metal sulfide.

EP 0 041 274 B1 describes fluorescent compositions with the ability to change the wavelengths of light, moldings based on such compositions as elements converting light waves and devices for converting optical energy into electrical energy using such an element. In the examples of EP 0 041 274 B1, among other things, 12H-phthaloperin-12-one in polyethylene terephthalate (PET) is used.

12H-phthaloperin-12-one [CAS No. 6925-69-5], known as Solvent Orange 60, is available, for example, as Macrolex® Orange 3G from Lanxess Deutschland GmbH, Cologne. The disadvantage, however, is that Solvent Orange 60 tends to migrate out of the plastic matrix in the event of extreme requirements, in particular under the requirements of electromobility, which leads to a decrease in color intensity at elevated temperatures. The Solvent Orange 60 migrates to the surface of the plastic (blooming). From there it can be rubbed off, washed off or dissolved, evaporate (fogging) or migrate into other materials (e.g. neighboring plastic or rubber parts) (bleeding). The concentration of Solvent Orange 60 in the original plastic is reduced, which leads to a decrease in color intensity. The migrated Solvent Orange 60 also has the disadvantage that it can be transported to neighboring components by mechanical or physical processes and there leads to negative functional impairments. For example, there is an increased electrical resistance in a switch contact, which can result from the deposition of solvent orange 60 on the surface of electrical contacts. In the area of electrical components, the migration of ingredients out of plastics is therefore generally undesirable, since it can influence the properties of the plastics and spatially adjacent parts, which may no longer guarantee the function of the electrical component. Based on the teaching of EP 0 041 274 B1, the object of the present invention was therefore to develop orange polymer compositions based on polyester for high-voltage components, in particular for high-voltage components in electric vehicles, which are less prone to migration, in particular bleeding, compared to the solution in EP 0 041 274 B1 based on 12H-phthaloperin-12-one.

For high-voltage components, especially in electromobility, it is also important to be able to label them with additional information such as serial numbers, manufacturer features, installation information or safety-relevant information. A suitable means of marking plastic-based components is laser labeling (see https://de.wikipedia.org/wiki/Laserbeschriftung), with diode lasers or ND: YAG lasers with a wavelength of 1064 nm being preferred.

According to the prior art, in the case of inscriptions with a laser with a wavelength of 1064 nm, additives based on antimony trioxide are mostly used to improve the inscription contrast (see EP 3 281 974 A1). However, according to the invention, the use of antimony trioxide should preferably be avoided, as it has a negative connotation on the market due to an H351 hazard warning (“Can probably cause cancer”). Antimony trioxide can also have a negative effect on the tracking resistance according to IEC 60112, which would be particularly disadvantageous for applications in high-voltage components for electromobility, because if the tracking resistance is lower, the distance between current-carrying assemblies would have to be increased in order to exclude safety risks from undesired current flow.

An additional object of the present invention is that it can be laser-inscribed at a laser wavelength of 1064 nm even without the addition of antimony trioxide or derivatives containing antimony trioxide and that, if possible, no disadvantages corresponding to the antimony trioxide due to a decrease in the tracking resistance have to be accepted .

Ideally, orange polyester-based molding compositions according to the invention should not only be laser-inscribable compared to the prior art cited above, but also have improved lightfastness and improved thermal stability, in that the original color obtained immediately after injection molding is under UV light or under thermal stress is maintained over a longer period of time than in comparison to 12H-phthaloperin-12-one. In the context of the present invention, a longer period of time in relation to the thermal stress means storage in a hot air drying cabinet at 80 ° C. for 12 hours. In the context of the present invention, a longer period of time with regard to light fastness means an irradiation time with a xenon lamp, 1500 watt, 45-130 klx, and wavelength 300-800 nm of 96 hours. Surprisingly, it has now been found that high-voltage components, in particular high-voltage components for electromobility, containing thermoplastic polymer compositions based on polyester and at least one sulfide containing cerium as an orange colorant, meet the requirements for bleeding as well as lightfastness and the required laser inscribability.

Subject matter of the invention

The invention relates to polymer compositions containing at least one polyester and at least one sulfide containing cerium.

Also preferred are polymer compositions in which, per 100 parts by mass of polyester, 0.01 to 5 parts by mass, particularly preferably 0.01 to 3 parts by mass, of at least one sulphide containing cerium are used.

The invention also relates, however, to high-voltage components, in particular

High-voltage components for electromobility, based on

Polymer compositions containing at least one polyester and at least one sulfide containing cerium.

The invention also relates, however, to high-voltage components, in particular

High-voltage components for electromobility, based on

Polymer compositions containing, per 100 parts by mass of at least one polyester, 0.01 to 5 parts by mass, particularly preferably 0.01 to 3 parts by mass, of at least one sulfide containing cerium.

However, the present invention also relates to the use of at least one sulphide containing cerium for the production of polyester-based polymer compositions, preferably polyester-based high-voltage components, in particular polyester-based high-voltage components for electromobility.

The invention also relates to the use of at least one sulphide containing cerium for marking polyester-based products as high-voltage components using a laser, preferably using a diode laser or ND: YAG laser at a wavelength of 1064 nm.

The present invention preferably relates to polymer compositions, molding compounds to be produced therefrom and, in turn, high-voltage components or high-voltage components for electromobility to be produced therefrom, with the proviso that these correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011 in the RAL color system. The present invention finally relates to one Method for marking polyester-based products as high-voltage components by irradiating the products using a laser, preferably using a diode laser or ND: YAG laser at a wavelength of 1064 nm, at least one sulphide containing cerium being used in the polyester.

Preferred polyesters are C ₂ -C ₁₀ polyalkylene terephthalates or polycarbonate, in particular polybutylene terephthalate (PBT).

The preparation of polyester-based polymer compositions according to the invention for use as high-voltage components is carried out by mixing the components A) polyester and B) at least one sulphide containing cerium in at least one mixing tool, with the proviso that the polymer compositions or the high-voltage components or high-voltage components to be produced therefrom for the electric mobility based on A) and B) in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011.

Mixing gives molding compositions based on the polymer compositions according to the invention as intermediate products. These molding compounds can either consist exclusively of components A) and B), or else contain at least one further component in addition to components A) and B), with the proviso that the molding compounds or the high-voltage components or high-voltage components for electromobility to be produced from them based on A) and B) as well as any other components in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011.

For the reasons mentioned above, the use of antimony-based components, in particular the use of antimony trioxide-containing derivatives, is preferably dispensed with in the production of the polymer compositions or molding compounds.

For the sake of clarity, it should be noted that the scope of the present invention encompasses all of the definitions and parameters listed, general or in areas of preference, in any combination. The standards mentioned in the context of this application relate to the version valid on the filing date of this invention.

Bleeding

To determine the bleeding, the following procedure is used within the scope of the present invention: First of all, plastic plates are made from a polyester composition to be examined and containing colorants with dimensions of 60 _* 40 _* 2 mm ^3. For plastic sheets within the meaning of the present invention, at least one sulfide containing cerium is used as the colorant. Subsequently, a soft PVC film with the dimensions 30 _* 20 _* 2 mm ^{3 is} clamped between two of the initially manufactured plastic sheets and the entirety of all sheets is stored in an air drying cabinet at 80 ° C. for 12 hours. The subsequent assessment of the colorant migrated from the two plastic sheets into the soft PVC is then carried out visually according to the gray scale according to ISO 105-A02, where '5' means that the PVC film shows no color change (no visually recognizable colorant transfer from the polyester plastic sheets on the PVC film) and '1' means that the PVC film shows a strong change in color (strong, visually recognizable colorant transfer from the polyester plastic plates to the PVC film).

Lightfastness

As a measure of the lightfastness in the context of the present invention, the discoloration after UV storage of the above-described plastic plates of the polyester composition to be examined and containing colorant with a UV light of the Suntest CPS + type with air-cooled Atlas Xenon lamp, 1500 Watt, 45-130 klx, wavelength 300-800 nm and window glass filter 250-267 W / m ² from Fierstellers Atlas Material Testing Technology GmbH, Linsengericht, Germany, and an irradiation time of 96 hours. The discoloration is assessed visually based on the Blue Wool Scale in accordance with DIN EN ISO 105-B02, where '8' stands for excellent light fastness (slight color change) and 'T' stands for very low light fastness (strong color change).

High voltage

In Regulation No. 100 of the United Nations Economic Commission for Europe (UNECE) - Uniform Conditions for the Approval of Vehicles with regard to the Special Requirements for Electric Drives [2015/505], the term "high voltage" is used in section 2.17 Voltage ”) is described as a voltage for which an electrical component or circuit is designed, the rms value of the operating voltage is> 60 V and <1 500 V (direct current) or> 30 V and <1 000 V (alternating current).

This classification of "high voltage" corresponds to voltage class B of ISO6469-3: 2018 ("Electrically propelled road vehicles - Safety specifications - Part 3: Electrical safety"). There, in Section 5.2, there are also labeling regulations for electrical components of voltage class B with corresponding hazard symbols or the color 'orange'.

High-voltage components or high-voltage components for electromobility

According to the invention, the term high-voltage component is understood to mean components or products that are exposed to an operating voltage in accordance with Section 2.17 of Regulation No. 100 of the United Nations Economic Commission for Europe (UNECE) described above. According to the invention, high-voltage components for electromobility are preferably components in electric vehicles that have an operating voltage greater than or equal to 30V (direct current) or greater than or equal to 20 V (alternating current), particularly preferably - based on voltage class B of ISO6469-3: 2018 - a Operating voltages greater than 60V (direct current) or greater than 30V (alternating current) are exposed.

According to the invention, the high-voltage components for electromobility include both those components that are in direct contact with the live parts and those that have the function of contact protection, warning signs or shielding in the immediate vicinity or spatial proximity, whereby components, which are in direct contact with the live parts are preferred according to the invention.

Polymer compositions according to the invention, products to be produced therefrom, preferably high-voltage components, particularly preferably high-voltage components for electromobility, are colored orange due to the at least one sulphide containing cerium, with colors in the RAL color system of the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 and RAL2011, are particularly preferred and the color tones that correspond to the color number RAL2003, RAL2004, RAL2008 and RAL2009 in the RAL color system are particularly preferred and RAL 2003 is particularly preferred.

According to the invention, also permissible "similar colors" are those whose color difference in the L ^* a ^* b ^* system has a DE of <20, preferably a DE <10, particularly preferably DE <5 to that defined in the RAL color table of each RAL color L ^* a ^* b ^* value. For an explanation of the DE, see, for example: https://de.wikipedia.org/wiki/Delta_E.

orange In the context of the present invention, orange is a color that in the RAL color system according to https: //de.wikipedia.0rg/wiki/RAL-Farbe#Orange has a color number in the RAL color table that begins with a "2". On the filing date of the present invention, a distinction is made between orange tones according to Table 1:

Tab. 1

L a ^* b

RAL 2000 yellow orange 58.20 37.30 68.68

RAL 2001 red orange 49.41 39.79 35.29

RAL 2002 blood orange 47.74 47.87 33.73

RAL 2003 pastel orange 66.02 41.22 52.36

RAL 2004 pure orange 56.89 50.34 49.81

RAL 2005 luminous orange 72.27 87.78 82.31

RAL 2007 bright orange 76.86 47.87 97.63

RAL 2008 light red orange 60.33 46.91 60.52

RAL 2009 traffic orange 55.83 47.79 48.83

RAL 2010 signal orange 55.39 40.10 42.42

RAL 2011 deep orange 59.24 40.86 64.50

RAL 2012 salmon orange 57.75 40.28 30.66

RAL 2013 pearl orange 40.73 32.14 34.92

Table 1 shows the device-independent CIE L ^* a ^* b ^* color values for the respective RAL value: L ^* stands for the luminance, a ^* = D65 and b ^* = 10 °. The color model is standardized in EN ISO 11664-4 "Colorimetry - Part 4: CIE 1976 L ^* a ^* b ^* Color space". For L ^* a ^* b ^* color space (also: CIELAB) see: https://de.wikipedia.org/wiki/Lab-Farbraum.

Each color in the color space is defined by a color location with the Cartesian coordinates {L ^* , a ^* , b ^* }. The a ^* b ^* coordinate plane was constructed using the opposite color theory. On the a ^* axis, green and red are opposite each other, the b ^* axis runs between blue and yellow. Complementary color tones face each other by 180 °, in their center (the coordinate origin a ^* = 0, b ^* = 0) is gray.

The L ^* axis describes the brightness (luminance) of the color with values from 0 to 100. In the representation, this is at the zero point perpendicular to the a ^* b ^* plane. It can also be referred to as the neutral gray axis, because all achromatic colors (gray tones) are contained ^{between the end points black (L *} = 0) and white (L ^{* = 100).} The a ^* axis describes the green or red component of a color, with negative values for green and positive values represent red. The b ^* axis describes the blue or yellow component of a color, with negative values for blue and positive values for yellow.

The a ^* values range from approx. -170 to +100, the b ^* values from -100 to +150, with the maximum values only being achieved with medium brightness of certain color tones. The CIELAB color body has its greatest expansion in the middle lightness range, which, however, varies in height and size depending on the color range.

In the context of the present invention, polymer compositions and high-voltage components to be produced therefrom are preferred whose color value ^{comes as close as possible to RAL 2003, pastel orange with L *} a ^* b ^* 66.02 / 41.22 / 52.36, if not exactly the same. For this purpose, the person skilled in the art will select the amounts of the components to be used in the polymer compositions according to the invention in such a way that the result achieved is as much as possible RAL 2003.

Further preferred embodiments of the invention

In a preferred embodiment, the invention relates to polymer compositions, high-voltage components, in particular

High-voltage components for electromobility, containing in addition to components A) and B) also C) at least one filler and / or reinforcing material, preferably 1 to 150 parts by mass, particularly preferably 5 to 80 parts by mass, very particularly preferably 10 to 50 parts by mass, each based on 100 parts by mass of component A) with the proviso that the polymer compositions or the high-voltage components or high-voltage components to be produced from them for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferred the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, most preferably the color number RAL 2003.

In a further preferred embodiment, the invention relates

Polymer compositions, high-voltage components, in particular

High-voltage components for electromobility, containing in addition to components A), B) and C) or instead of C) also D) at least one flame retardant, preferably 3 to 100 parts by mass, particularly preferably 5 to 80 parts by mass, very particularly preferably 10 up to 50 parts by mass, in each case based on 100 parts by mass of component A) with the proviso that the polymer compositions or the high-voltage components or high-voltage components to be produced therefrom for electromobility based on A), B), C) and D) or based on A), B) and D) in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003.

In a further preferred embodiment, the invention relates to polymer compositions, high-voltage components, in particular

High-voltage components for electromobility, including in addition to the components

A), B), C), D) or instead of C) and / or D) also E) at least one further additive different from components B), C) and D), preferably at 0.01 to 80 parts by mass, particularly preferably from 0.05 to 50 parts by mass, very particularly preferably from 0.1 to 30 parts by mass, in each case based on 100 parts by mass of component A). E) is preferably used with the proviso that the polymer compositions or the high-voltage components or high-voltage components to be produced therefrom for electromobility on the basis of A), B), C), D) and E) or on the basis of A), B), E) or on the basis of A), B), C) and E) or on the basis of A),

B), D) and E) in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003.

Polyalkylene terephthalates as component A)

According to the invention, polyesters to be used preferably as component A) are C ₂ -C ₁₀ polyalkylene terephthalates or reaction products of an alcohol part with 2 to 10 carbon atoms in the alcohol part and terephthalic acid. C ₂ -C ₁₀ polyalkylene terephthalates are known to the person skilled in the art and are adequately described in the literature. They contain an aromatic ring in the main chain, which is derived from terephthalic acid, and an aliphatic part, which is derived from a dihydroxy compound. The aromatic ring of terephthalic acid can also be substituted. Preferred substituents are halogens or C 1 -C _{4 -alkyl groups.} Preferred halogens are chlorine or bromine. Preferred CC ₄ alkyl groups are methyl, ethyl, n-propyl or n-, i- or t-butyl groups.

As component A) to be used preferably C ₂ -C ₀ -Polyalkylenterephthalate may be prepared by reacting aromatic dicarboxylic acids, their esters or other derivatives esterbildenden with aliphatic dihydroxy compounds in a known manner to the skilled person can be produced.

In the case of used as component A) C ₂ -C ₀ -Polyalkylenterephthalate a part of the mole for the production thereof to be used terephthalic acid, up to 30%, by 2,6-naphthalenedicarboxylic acid, or isophthalic acid or mixtures thereof are replaced. Up to 70 mol%, preferably not more than 10 mol% of the terephthalic acid can be replaced by aliphatic or cycloaliphatic dicarboxylic acids such as adipic acid, azelaic acid, sebacic acid, dodecanedioic acids and cyclohexanedicarboxylic acids.

Of the aliphatic dihydroxy compounds, diols with 2 to 6 carbon atoms, in particular 1,2-ethanediol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, 1,4-hexanediol, 1,4-cyclohexanediol, 1,4-Cyclohexanedimethanol and neopentyl glycol or mixtures thereof are preferred. Particularly preferred polyalkylene terephthalates are derived from alkanediols having 2 to 4 carbon atoms. Of these, polyethylene terephthalate, polypropylene terephthalate and polybutylene terephthalate or mixtures thereof are particularly preferred. Also preferred are PET and / or PBT which contain up to 1% by weight, preferably up to 0.75% by weight, 1,6-hexanediol and / or 2-methyl-1,5-pentanediol as further monomer units.

_{C 2} -C ₁₀ polyalkylene terephthalates to be used as component A) preferably have a viscosity number m, to be determined according to ISO 1628, in the range from 50 to 220, preferably in the range from 80 to 160, with in a 0.5% strength by weight solution in a phenol / o-dichlorobenzene mixture, weight ratio 1: 1 at 25 ° C.

According to the invention, preferred C ₂ -C ₁₀ polyalkylene terephthalates to be used as component A) preferably have a carboxyl end group content of up to 100 meq / kg polyester, particularly preferably up to 50 meq / kg polyester and particularly preferably up to 40 meq / kg polyester. Such C ₂ -C ₀ - polyalkylene terephthalates, for example, by the process of DE-A 44 01 055. are prepared. The carboxyl end group content is usually determined by titration methods, in particular potentiometry.

Particularly preferred to be used and, as component A) C ₂ -C ₀ - polyalkylene terephthalates are produced with Ti catalysts. After the polymerization, these preferably have a residual Ti content of <250 ppm, particularly preferably <200 ppm, very particularly preferably <150 ppm.

The polybutylene terephthalate (PBT) [CAS No. 24968-12-5] to be preferably used as component A) according to the invention is produced from terephthalic acid or its reactive derivatives and butanediol by known methods (Kunststoff-Handbuch, Vol. VIII, pp. 695-743, Karl Hanser Verlag, Munich 1973). The PBT to be used as component A) preferably contains at least 80 mol%, preferably at least 90 mol%, based on the dicarboxylic acid, of terephthalic acid residues.

The PBT to be used as component A) according to the invention, in one embodiment, in addition to terephthalic acid residues, can contain up to 20 mol% residues of other aromatic dicarboxylic acids with 8 to 14 carbon atoms or residues of aliphatic dicarboxylic acids with 4 to 12 carbon atoms, in particular residues of phthalic acid, Isophthalic acid, naphthalene-2,6-dicarboxylic acid, 4,4'-diphenyldicarboxylic acid,

Succinic acid, adipic acid, sebacic acid, azelaic acid, cyclohexanediacetic acid, cyclohexanedicarboxylic acid, 2,5-furanedicarboxylic acid.

The PBT to be used as component A) according to the invention can in one embodiment contain up to 20 mol% of other aliphatic diols with 3 to 12 carbon atoms or up to 20 mol% of cycloaliphatic diols with 6 to 21 carbon atoms in addition to butanediol, preferably Residues of propanediol-1,3, 2-ethylpropanediol-1,3, neopentylglycol, pentanediol-1,5, hexanediol-1,6, 1,4-cyclohexanedimethanol, 3-methylpentanediol-2,4, 2-methylpentanediol-2, 4, 2,2,4-trimethylpentanediol-1, 3, 2,2,4-trimethylpentanediol-1, 5, 2- ethylhexanediol-1, 3, 2,2-diethylpropanediol-1, 3, hexanediol-2,5, 1,4-di- (ß-hydroxyethoxy) benzene, 2,2-bis (4-hydroxycyclohexyl) propane, 2,4-dihydroxy-1, 1,3,3-tetramethylcyclobutane, 2,2-bis- (3-ß-hydroxyethoxyphenyl) propane and 2,2-bis (4-hydroxypropoxyphenyl) propane.

PBT to be used preferably as component A) has an intrinsic viscosity according to EN-ISO 1628/5 in the range from 40 to 170 cm ³ / g, particularly preferably in the range from 50 to 150 cm ³ / g, very particularly preferably in the range from 65 to 135 cm ³ / g, each measured in an Ubbelohde viscometer in phenol / o-dichlorobenzene (1: 1 parts by weight) at 25 ° C. The intrinsic viscosity IV, also referred to as the Staudinger index or limiting viscosity, is proportional to the average molecular weight according to the Mark-Houwink equation and is the extrapolation of the viscosity number VN for the case of vanishing polymer concentrations. It can be estimated from series of measurements or by using suitable approximation methods (e.g. Billmeyer). The VN [ml / g] is obtained from the measurement of the solution viscosity in a capillary viscometer, for example an Ubbelohde viscometer. The solution viscosity is a measure of the average molecular weight of a plastic. The determination is carried out on dissolved polymer, different solvents (m-cresol, tetrachloroethane, phenol, 1,2-dichlorobenzene, etc.) and concentrations being used. The viscosity number VN enables the processing and usage properties of plastics to be checked. Thermal stress on the polymer, aging processes or that The effects of chemicals, weathering and light can be examined by means of comparative measurements. See also: http://de.wikipedia.org/wiki/Viskosimetrie and "http://de.wikipedia.org/wiki/Mark-Houwink- equation".

The PBT, which is preferably to be used as component A), can also be used in a mixture with other polymers. The PBT blends to be used according to the invention are produced by compounding. During such compounding, customary additives, in particular mold release agents or elastomers, can also be mixed in in the melt, as a result of which the properties of the blends are improved.

PBT to be used with preference according to the invention can be obtained as Pocan® B 1300 from Lanxess Deutschland GmbH, Cologne.

Polycarbonate as component A)

According to the invention, at least one thermoplastic from the group of polycarbonates can also be used as the polyester of component A).

Polycarbonates to be used with preference according to the invention are those homopolycarbonates or copolycarbonates based on bisphenols of the general formula (I),

HO-Z-OH (I) where Z is a divalent organic radical with 6 to 30 carbon atoms which contains one or more aromatic groups.

At least one polycarbonate based on bisphenols of the formula (Ia) is preferably used as component A) (la), in which

A for a single bond or for a radical from the series CrC ₅ alkylene, C ₂ -C ₅ alkylidene, C ₅ -C ₆ cycloalkylidene, -O-, -SO-, -CO-, -S-, -S0 ₂ -, C ₆ -C ₁₂ arylene is what further aromatic rings, optionally containing heteroatoms, can be condensed, or A represents a radical of the formula (II) or (III) wherein

R ⁷ and R ⁸ are individually selectable for each Y and independently represent hydrogen or _{C 1 -C 6} -alkyl, preferably represent hydrogen, methyl or ethyl, B each represents Ci-Ci -alkyl, preferably methyl, halogen, preferably chlorine and / or bromine, x each independently represents 0, 1 or 2, p represents 1 or 0,

Y is carbon and m is an integer from 4 to 7, preferably 4 or 5, with

Provided that on at least one Y (carbon atom) R ⁷ and R ⁸ simultaneously represent alkyl.

In a preferred embodiment, when m is 4, Y is -CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ -; when m is 5, Y is - CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ -; when m is 6, Y is -CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ - CR ⁷ R ⁸ -CR ⁷ R ⁸ -; and when m is 7, Y is -CR ⁷ R ⁸ -CR ⁷ R ⁸ - CR ⁷ R ⁸ -CR ⁷ R ⁸ -CR ⁷ R ⁸ - CR ⁷ R ⁸ -CR ⁷ R ⁸ -.

Preferred bisphenols containing the general formula (II) are bisphenols from the group dihydroxydiphenyls, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) cycloalkanes, indan bisphenols, bis (hydroxyphenyl) sulfides, bis (hydroxyphenyl) - ethers, bis (hydroxyphenyl) ketones, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) sulfoxides and α, α'-bis (hydroxyphenyl) diisopropylbenzenes.

Derivatives of the bisphenols mentioned, which are preferably obtainable by alkylation or halogenation on the aromatic rings of the bisphenols mentioned, are preferably bisphenols containing the general formula (II) to be used.

Particularly preferred bisphenols containing the general formula (II) are hydroquinone, resorcinol, 4,4'-dihydroxydiphenyl, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) sulfone, bis (3,5-dimethyl-4 -hydroxyphenyl) methane, bis (3,5-dimethyl-4-hydroxyphenyl) -sulfone, 1, 1 -Bis- (3,5-dimethyl-4-hydroxyphenyl) -p / m-diisopropylbenzene, 1, 1- Bis- (4-hydroxyphenyl) -1-phenyl-ethane, 1,1-bis- (3,5-dimethyl-4-hydroxyphenyl) -cyclohexane, 1,1-bis- (4-hydroxyphenyl) -3- methylcyclohexane, 1,1-bis (4-hydroxyphenyl) -3,3-dimethylcyclohexane, 1,1-bis (4-hydroxyphenyl) -4-methylcyclohexane. 1,1-bis (4-hydroxyphenyl) cyclohexane, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 2,2-bis (3,5-dichloro-4-hydroxyphenyl ) propane, 2,2-bis- (3-methyl-4-hydroxyphenyl) -propane, 2,2-bis- (3,5-dimethyl-4-hydroxyphenyl) -propane, 2,2-bis- (4 hydroxyphenyl) propane (ie bisphenol A), 2,2-bis (3-chloro-4-hydroxyphenyl) propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) propane , 2,4-bis- (4-hydroxyphenyl) -2-methylbutane, 2,4-bis- (3,5-dimethyl-4-hydroxyphenyl) -2-methylbutane, a, a'-bis- (4-hydroxyphenyl ) -o-diisopropylbenzene, a, a'-bis- (4-hydroxyphenyl) -m-diisopropylbenzene (ie bisphenol M), a, a'-bis- (4-hydroxyphenyl) -p-diisopropylbenzene and indane bisphenol.

The bisphenols of the general formula (II) described can be prepared by processes known to the person skilled in the art, preferably from the corresponding phenols and ketones.

The polycarbonates to be used as component A) can also be produced by known processes. Preferred processes for the production of polycarbonates are, for example, the production from bisphenols with phosgene by the phase interface process, or from bisphenols with phosgene by the process in the homogeneous phase, the so-called pyridine process, or from bisphenols with carbonic acid esters by the melt transesterification process. The mentioned Bisphenols and processes for their preparation are described, for example, in the monograph H. Schnell, "Chemistry and Physics of Polycarbonates", Polymer Reviews, Volume 9, pp. 77-98, Interscience Publishers, New York, London, Sidney, 1964 and in US-A 3028635, US-A 3062781, US-A 2999835, US-A 3148 172, US-A 2991 273, US-A 3271 367, US-A 4982014, US-A 2999846 , in DE-A 1 570703, in DE-A 2063050, in DE-A 2036052, in DE-A 2211 956, in DE-A 3832396, and in FR-A 1 561 518 as well as in the Japanese laid-open documents with the application numbers JP -A 62039 1986, JP-A 62040 1986 and JP-A 105550 1986.

1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane and its preparation is described, for example, in US-A 4982014.

Indane bisphenols and their preparation are described, for example, in US Pat. No. 3,288,864, in JP-A 60 035 150 and in US Pat. No. 4,334,106. Indane bisphenols can be obtained, for example, from isopropenylphenol or its derivatives or from dimers of isopropenylphenol or its derivatives in Presence of a Friedel-Craft catalyst in organic solvents.

The melt transesterification process is described in H. Schnell, "Chemistry and Physics of Polycarbonates", Polymer Reviews, Volume 9, pp. 44 to 51, Interscience Publishers, New York, London, Sydney, 1964 and in DE-A 1 031 512.

In the production of polycarbonate, preference is given to using raw materials and auxiliaries with a low level of impurities. In particular in the case of production by the melt transesterification process, the bisphenols and the carbonic acid derivatives used should be as free as possible from alkali ions and alkaline earth ions. Such pure raw materials can be obtained, for example, by recrystallizing, washing or distilling the carbonic acid derivatives, in particular carbonic acid esters, and the bisphenols.

The polycarbonates to be used with preference according to the invention preferably have a weight average molar mass M _w in the range from 10,000 to 200,000 g / mol, which is obtained by ultracentrifugation (see K. Schilling, Analytical Ultrazentrifugation, Nanolytics GmbH, Dallgow, pages 1-15) or have scattered light measurement determined in accordance with DIN EN ISO 16014-5: 2012-10. The polycarbonates to be used particularly preferably have a weight average molar mass in the range from 12,000 to 80,000 g / mol, particularly preferably a weight average molar mass in the range from 20,000 to 35,000 g / mol. The mean molar mass of the polycarbonates to be used preferably as component A) according to the invention can preferably be adjusted in a known manner by means of a corresponding amount of chain terminators. The chain terminators can be used individually or as a mixture of different chain terminators.

Preferred chain terminators are both monophenols and monocarboxylic acids. Preferred monophenols are phenol, p-chlorophenol, p-tert-butylphenol, cumylphenol or 2,4,6-tribromophenol, as well as long-chain alkylphenols, in particular 4- (1,1,3,3-tetra-methylbutyl) -phenol or monoalkylphenols or dialkylphenols with a total of 8 to 20 carbon atoms in the alkyl substituents, in particular 3,5-di-tert-butylphenol, p-tert-octylphenol, p-dodecylphenol, 2- (3,5-dimethyl-heptyl) - phenol or 4- (3,5-dimethylheptyl) phenol. Preferred monocarboxylic acids are benzoic acid, alkylbenzoic acids or halobenzoic acids.

Particularly preferred chain terminators are phenol, p-tert-butylphenol, 4- (1,1,3,3-tetra-methylbutyl) -phenol or cumylphenol.

The amount of chain terminators to be used is preferably in the range from 0.25 to 10 mol%, based on the sum of the bisphenols used in each case.

The polycarbonates to be used with preference as component A) according to the invention can be branched in a known manner, preferably through the incorporation of trifunctional or more than trifunctional branching agents. Preferred branching agents are those with three or more than three phenolic groups or those with three or more than three carboxylic acid groups.

Particularly preferred branching agents are phloroglucinol, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -hepten-2, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) ) -heptane, 1, 3,5-tri- (4-hydroxyphenyl) -benzene, 1, 1, 1-tris- (4-hydroxyphenyl) -ethane, tri- (4-hydroxyphenyl) -phenylmethane, 2,2- Bis- [4,4-bis- (4-hydroxyphenyl) -cyclohexyl] -propane, 2,4-bis- (4-hydroxyphenyl-isopropyl) -phenol, 2,6-bis- (2-hydroxy-5'- methylbenzyl) -4-methylphenol, 2- (4-hydroxyphenyl) -2- (2,4-dihydroxyphenyl) propane, hexa- (4- (4-hydroxyphenylisopropyl) phenylj-terephthalic acid ester, tetra- (4 -hydroxyphenyl) -methane, tetra- (4- (4- hydroxyphenyl-isopropyl) -phenoxy) -methane and 1,4-bis- (4 ', 4 "-dihydroxytriphenyl) - methylbenzene, 2,4-dihydroxybenzoic acid, trimesic acid, Cyanuric chloride, 3,3-bis- (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole, trimesic acid trichloride or a, a ', a "-Tris- (4-hydroxyphenol) -1, 3, 5-triisopropylbenzene.

Very particularly preferred branching agents are 1,1,1-tris- (4-hydroxyphenyl) -ethane or 3,3-bis- (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole. The amount of branching agents to be used is preferably in the range from 0.05 mol% to 2 mol%, based on the moles of bisphenols used.

In the case of the production of the polycarbonate by the phase boundary process with the bisphenols and the chain terminators, the branching agents are preferably initially introduced in the aqueous alkaline phase, or dissolved in an organic solvent and added together with the carbonic acid derivatives. In the case of the

In the transesterification process, the branching agents are preferably metered in together with the dihydroxyaromatics or bisphenols.

Catalysts to be used with preference in the production of polycarbonate to be used preferably as component A) according to the invention by the melt transesterification process are ammonium salts and phosphonium salts, as described, for example, in US-A 3442864, JP-A-14742/72, US-A 5399659 or DE-A

19539290.

In a preferred embodiment, copolycarbonates can also be used as component A). Copolycarbonates in the context of the invention are in particular polydiorganosiloxane-polycarbonate block copolymers whose weight average molar mass M _{w is} preferably in the range from 10,000 to 200,000 g / mol, particularly preferably in the range from 20,000 to 80,000 g / mol, determined by Gel chromatography according to DIN EN ISO 16014-5: 2012-10 after prior calibration by light scattering measurement or ultracentrifugation. The content of aromatic carbonate structural units in the polydiorganosiloxane-polycarbonate block copolymers is preferably in the range from 75 to 97.5% by weight, particularly preferably in the range from 85 to 97% by weight. The content of polydiorganosiloxane structural units in the polydiorganosiloxane-polycarbonate block copolymers is preferably in the range from 25 to 2.5% by weight, particularly preferably in the range from 15 to 3% by weight. The polydiorganosiloxane-polycarbonate block copolymers can preferably be prepared starting from a, w-bishydroxyaryloxy end-group-containing polydiorganosiloxanes with an average degree of polymerization P _n in the range from 5 to 100, particularly preferably with an average degree of polymerization P _n in the range from 20 to 80 .

Polycarbonates to be used particularly preferably as component A) are the homopolycarbonate based on bisphenol A, the homopolycarbonate based on 1,1-bis- (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane and the copolycarbonates based on the two monomers bisphenol A and 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (= bisphenol TMC). According to the invention, those to be used preferably as component A) Polycarbonates are available, for example, under the Makroion® brand from Covestro AG, Leverkusen.

In one embodiment, the polycarbonates to be used as component A) can be admixed with conventional additives, in particular mold release agents, in the melt or applied to the surface. The polycarbonates to be used as component A) preferably already contain mold release agents prior to subsequent compounding with the other components, whereby the person skilled in the art understands compounding to be a term from plastics technology which is to be equated with plastics processing and describes the refinement process of plastics by adding aggregates (fillers, additives, etc.) for the targeted optimization of the property profiles. Compounding is preferably carried out in extruders, particularly preferably in co-rotating twin-screw extruders, counter-rotating twin-screw extruders, planetary roller extruders or co-kneaders and comprises the process operations conveying, melting, dispersing, mixing, degassing and pressure build-up.

In a preferred embodiment, however, blends of polycarbonate and polyalkylene terephthalates can also be used as component A), which are also offered by Covestro AG under the trademark Makroblend®. These are preferably PC-PET blends, PC-PBT blends or PC-PCT-G blends, where PC stands for polycarbonate, PET for polyethylene terephthalate, PBT for polybutylene terephthalate and PCT for polycyclohexylene dimethylene terephthalate.

Component B)

According to the invention, at least one sulfide containing cerium is used as component B). Preferred sulfides containing cerium are cerium (III) sulfide (Ce ₂ S ₃ ) [CAS no. 12014- 93-6], also known as Cl Pigment Orange 75, or cerium (III) sulfide / lanthanum (III) sulfide (Ce ₂ S ₃ / La ₂ S ₃ ) [CAS no. 12014-93-6; CAS no. 12031-49-1] also known as CI Pigment Orange 78. According to the invention, the mixed sulphide cerium (III) sulphide / lanthanum (III) sulphide (CI Pigment Orange 78) is particularly preferably used as the sulphide containing cerium. Regarding the Cl classification see https://de.wikipedia.org/wiki/Colour_lndex.

Pigment Orange 75 and Pigment Orange 78 can be obtained from Chemikos, Dr. Oliver Schmitt, Karlsruhe, Germany

[https://www.chemikos.de/cersulfid-orange-pigmente] or under the trade name Neolor® Orange S or Neolor® Light Orange S from Baotou Hongbo Te Technology co. Ltd., 'Inner Mongolia', China. According to the invention, the at least one sulphide containing cerium can be used individually or in a mixture with at least one further sulphide containing cerium, mixed oxides or mixed sulphides of cerium with other lanthanides, preferably with lanthanum, being included according to the invention, with the proviso that the polymer compositions or the The high-voltage components or high-voltage components to be produced from them for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003.

The at least one sulphide containing cerium to be used according to the invention as component B) can be used directly as a powder, or else in the form of a paste or a masterbatch, compact or concentrate in component A), masterbatches being preferred and masterbatches in one of the respective component A) corresponding polymer matrix are particularly preferred.

Component C)

In a preferred embodiment, at least one filler or reinforcing material is used as component C). Mixtures of two or more different fillers or reinforcing materials can also be used here.

At least one filler or reinforcing material from the group of carbon fibers [CAS No. 7440-44-0], glass spheres or solid or hollow glass spheres, glass fibers, ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E-glass ) [CAS No. 65997-17-3], amorphous silica [CAS No. 7631-86- 9], quartz flour [CAS No. 14808-60-7], calcium silicate [CAS No. 1344-95-2], calcium metasilicate [CAS No. 10101-39-0], magnesium carbonate [CAS No. 546-93-0], kaolin [CAS No. 1332-58-7], calcined kaolin [CAS No. 92704-41-1], chalk [ CAS No. 1317-65-3], kyanite [CAS No. 1302-76-7], powdered or ground quartz [CAS No. 14808-60-7], mica [CAS No. 1318-94-1], phlogopite [CAS No. 12251-00-2], barium sulfate [CAS No. 7727-43-7], feldspar [CAS No. 68476-25-5], wollastonite [CAS No. 13983-17-0], montmorillonite [CAS No. 67479-91-8], pseudoboehmite of the formula AIO (OH), magnesium carbonate [CAS No. 12125-28-9] and talc [CAS No. 14807-96-6] are used.

Among the fibrous fillers or reinforcing materials, glass fibers and wollastonite are particularly preferred, with glass fibers being very particularly preferred. Carbon fibers can also be used as filler or reinforcing material. With regard to the glass fibers, according to “http://de.wikipedia.org/wiki/Faser-Kunststoff-Verbund”, a person skilled in the art distinguishes cut fibers, also referred to as short fibers, with a length in the range from 0.1 to 1 mm, and long fibers with a Length in the range from 1 to 50 mm and continuous fibers with a length L> 50 mm. Short fibers are preferably used in injection molding technology and can be processed directly with an extruder. Long fibers can also be processed in extruders. They are widely used in fiber spraying. Long fibers are often mixed with thermosetting plastics as fillers. Continuous fibers are used as rovings or fabrics in fiber-reinforced plastics. Products with continuous fibers achieve the highest levels of rigidity and strength. Furthermore, ground glass fibers are offered, the length of which after grinding is typically in the range from 70 to 200 μm.

According to the invention, preferred glass fibers to be used as component C) are cut long glass fibers with an average initial length to be determined by laser diffractometry according to ISO 13320 in the range from 1 to 50 mm, particularly preferably in the range from 1 to 10 mm, very particularly preferably in the range from 2 to 7 mm . For laser diffraction particle size determination / laser diffractometry according to the ISO 13320 standard see: https://de.wikipedia.org/wiki/Laserbeugungs-Partikelgr%C3%B6%C3%9Fenanalyse

Preferred glass fibers to be used as component C) have an average fiber diameter to be determined by means of laser diffractometry in accordance with ISO 13320 in the range from 7 to 18 μm, particularly preferably in the range from 9 to 15 μm.

The fillers to be used as component C), preferably glass fibers, are provided in a preferred embodiment with a suitable size system or an adhesion promoter or adhesion promoter system. A sizing system or a silane-based adhesion promoter is preferably used. Particularly preferred adhesion promoters based on silane for the treatment of component C), in particular for the treatment of glass fibers, are silane compounds of the general formula (I)

(X- (CH ₂ ) _q ) _k -Si- (O-CrH _{2r + 1} ) _{4 k} (i) wherein

0

H “CC for NH ₂ -, carboxyl, HO or 2 H — CH O

X stands, q in formula (I) stands for an integer from 2 to 10, preferably 3 to 4, r in formula (I) stands for an integer from 1 to 5, preferably 1 to 2, and k in formula (I) stands for an integer from 1 to 3, preferably 1.

Particularly preferred flaft mediators are silane compounds from the group aminopropyltrimethoxysilane, aminobutyltrimethoxysilane, aminopropyltriethoxysilane, aminobutyltriethoxysilane and the corresponding silanes which contain a glycidyl or a carboxyl group as substituent X, with carboxyl groups being particularly preferred.

For finishing the fillers to be used as component C), preferably glass fibers, the flaft promoter, preferably the silane compounds according to formula (I), is preferably used in amounts in the range from 0.05 to 2% by weight, particularly preferably in amounts in the range of 0.25 to 1.5% by weight and very particularly preferably in amounts in the range from 0.5 to 1% by weight, based in each case on 100% by weight of component C).

The glass fibers to be preferably used as component C) can be shorter in the composition or in the product than the glass fibers originally used due to the processing into the composition or the product. The arithmetic mean value of the glass fiber length to be determined by means of high-resolution X-ray computer tomography is often only in the range of 150 gm to 300 gm after processing.

According to "http://www.r-g.de/wiki/Glasffaser", glass fibers are produced using the melt spinning process (nozzle drawing, rod drawing and nozzle blowing processes). In the nozzle drawing process, the hot glass mass flows through hundreds of nozzle bores in a platinum spinning plate using gravity. The filaments can be pulled in unlimited lengths at a speed of 3 - 4 km / minute.

The specialist distinguishes between different types of fiberglass, some of which are listed here, for example:

• E-glass, the most widely used material with an optimal price-performance ratio (E-glass from R&G)

• H-glass, hollow glass fibers for reduced weight (R&G glass hollow fiber fabric 160 g / m ² and 216 g / m ² )

R, S glass, for increased mechanical requirements (S2 glass from R&G)

D-glass, borosilicate glass for increased electrical requirements • C-glass, with increased chemical resistance

Quartz glass, with high temperature resistance

Further examples can be found at "http://de.wikipedia.org/wiki/Glasfaser". E-glass fibers have become the most important for plastic reinforcement. E stands for electrical glass, as it was originally mainly used in the electrical industry. For the production of E-glass, glass melts are made from pure quartz with additives from limestone, kaolin and boric acid. In addition to silicon dioxide, they contain various amounts of various metal oxides. The composition determines the properties of the products. According to the invention, at least one type of glass fibers from the group E-glass, H-glass, R, S-glass, D-glass, C-glass and quartz glass is used, particularly preferably glass fibers made of E-glass.

Glass fibers made from E-glass are the most widely used reinforcement material. The strength properties correspond to those of metals (e.g. aluminum alloys), with the specific gravity of laminates containing E-glass fibers being lower than that of metals. E-glass fibers are incombustible, heat-resistant up to approx. 400 ° C and resistant to most chemicals and weather influences.

Acicular mineral fillers are also preferably used as component C). According to the invention, acicular mineral fillers are understood to mean a mineral filler with a strongly pronounced acicular character. The acicular mineral filler to be used preferably as component C) is wollastonite. The needle-shaped, mineral filler preferably has a length: diameter ratio to be determined by means of high-resolution X-ray computed tomography in the range from 2: 1 to 35: 1, particularly preferably in the range from 3: 1 to 19: 1, particularly preferably in the range from 4: 1 up to 12: 1. The mean particle size of the needle-shaped mineral fillers to be determined by means of high-resolution X-ray computed tomography is preferably less than 20 μm, particularly preferably less than 15 μm, particularly preferably less than 10 μm.

Preference is given as component C) to non-fibrous and non-foamed ground glass with a particle size distribution to be determined by means of laser diffractometry according to ISO 13320 with ad90 in the range from 5 to 250 μm, preferably with ad90 in the range from 10 to 150 μm , particularly preferably with ad90 in the range from 15 to 80 pm, very particularly preferably with ad90 in the range from 16 to 25 pm. Regarding the d90 values, their determination and their meaning, see Chemie Ingenieur Technik (72) pp. 273-276, 3/2000, Wiley-VCH Verlags GmbH, Weinheim, 2000, according to which the d90 value is the particle size below which 90% of the amount of particles are.

According to the invention, the non-fibrous and non-foamed ground glass is of particulate, non-cylindrical shape and has a length to thickness ratio of less than 5, preferably less than 3, particularly preferably less than 2, to be determined by means of laser diffractometry in accordance with ISO 13320 of course excluded.

The non-foamed and non-fibrous ground glass, which is particularly preferred to be used as component C) in one embodiment, is also characterized in that it does not have the typical glass geometry for fibrous glass with a cylindrical or oval cross-section with a length to be determined by means of laser diffractometry in accordance with ISO 13320 Diameter ratio (L / D ratio) greater than 5.

The non-foamed and non-fibrous ground glass to be used particularly preferably according to the invention as component C) in one embodiment is preferably obtained by grinding glass with a mill, preferably a ball mill and particularly preferably with subsequent sifting or sieving. Preferred starting materials for the grinding of the non-fibrous and non-foamed, ground glass to be used as component C) in one embodiment are also glass waste, such as those found in the manufacture of glass products as an undesired by-product and / or as a main product that does not meet specifications (so-called off-spec goods ) attack. This includes, in particular, waste, recycling and broken glass, as can arise in particular in the production of window or bottle glass, as well as in the production of glass-containing fillers and reinforcing materials, in particular in the form of so-called melt cakes. The glass can be colored, with non-colored glass being preferred as the starting material for use as component C).

Component D)

In a preferred embodiment, at least one flame retardant is used as component D). Preferred flame retardants are mineral flame retardants other than component C), nitrogen-containing flame retardants or phosphorus-containing flame retardants. Magnesium hydroxide is particularly preferred among the mineral flame retardants. Magnesium hydroxide [CAS No. 1309-42-8] can be contaminated due to its origin and manufacturing method. Typical impurities are, for example, silicon, iron, calcium and / or aluminum-containing species, which can be embedded in the magnesium hydroxide crystals, for example in the form of oxides. The magnesium hydroxide to be used as a mineral flame retardant can be uncoated or provided with a size. A size affects the quality and promotes the mechanical bond between the plastic (matrix) and the component to be provided with the size. The magnesium hydroxide to be preferably used as a mineral flame retardant is preferably provided with sizes based on stearates or aminosiloxanes, particularly preferably with aminosiloxanes. Magnesium hydroxide to be used preferably as a mineral flame retardant has an average particle size d50 to be determined by means of laser diffractometry according to ISO 13320 in the range from 0.5 μm to 6 μm, with ad50 in the range from 0.7 μm to 3.8 μm being preferred and ad50 in the range from 1.0 pm to 2.6 pm is particularly preferred.

Magnesium hydroxide types suitable according to the invention as mineral flame retardants are, for example, Magnifin® H5IV from Martinswerk GmbH, Bergheim, Germany or Hidromag® Q2015 TC from Penoles, Mexico City, Mexico.

Preferred nitrogen-containing flame retardants are the reaction products of trichlorotriazine, piperazine and morpholine in accordance with CAS No. 1078142-02-5, in particular MCA PPM Triazin HF from MCA Technologies GmbH, Biel-Benken, Switzerland, and also melamine cyanurate and condensation products of melamine, in particular Miere, Melam, melon or more highly condensed compounds of this type. Preferred inorganic nitrogen-containing compounds are ammonium salts.

It is also possible to use salts of aliphatic and aromatic sulfonic acids and mineral flame retardant additives, in particular aluminum hydroxide or Ca-Mg-carbonate hydrates (DE-A 4236 122).

Flame retardant synergists from the group of oxygen, nitrogen or sulfur-containing metal compounds are also suitable for use as component D). Zinc-free compounds are preferred, in particular molybdenum oxide, magnesium oxide, magnesium carbonate, calcium carbonate, calcium oxide, titanium nitride, magnesium nitride, calcium phosphate, calcium borate, magnesium borate or mixtures thereof.

In an alternative embodiment, however, zinc-containing compounds can also be used as component D), if required. Which includes preferably zinc oxide, zinc borate, zinc stannate, zinc hydroxystannate, zinc sulfide and zinc nitride, or mixtures thereof.

Preferred phosphorus-containing flame retardants are organic metal phosphinates, aluminum salts of phosphonic acid, red phosphorus, inorganic metal hypophosphites, metal phosphonates, derivatives of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxides (DOPO derivatives), resorcinol bis (diphenyl phosphate ) (RDP) including oligomers, bisphenol-A-bis-diphenyl phosphate (BDP) including oligomers,

Melamine pyrophosphate, melamine polyphosphate, melamine poly (aluminum phosphate), melamine poly (zinc phosphate) or phenoxyphosphazene oligomers and mixtures thereof.

A preferred metal organic phosphinate is aluminum tris (diethyl phosphinate). A preferred inorganic metal hypophosphite is aluminum hypophosphite.

Other flame retardants to be used as component D) are carbon formers, particularly preferably phenol-formaldehyde resins, polycarbonates, polyimides, polysulfones, polyether sulfones or polyether ketones, and anti-drip agents, in particular tetrafluoroethylene polymers.

The flame retardants to be used as component D) can be added to component A) in their pure form or via masterbatches or compacts.

In an alternative embodiment, however, halogen-containing flame retardants can also be used as flame retardants - if required, taking into account the disadvantages due to the fact that the flame retardants are not halogen-free. Preferred halogen-containing flame retardants are commercially available organic halogen compounds, particularly preferably ethylene-1,2-bistetrabromophthalimide, decabromodiphenylethane, tetrabromobisphenol-A-epoxy-oligomer, tetrabromobisphenol-A-oligocarbonate, tetrachlorobisphenol-a-phenol or brominated polyphenyl-bisphenol-a-bromobenzene, the polyphenyl-styrene-a-oligobenzarbonate alone, or the polypropylene-bromobystyrene-bromylate-oligobenzarbonate can be used in combination with synergists, with brominated polystyrene being particularly preferred among the halogen-containing flame retardants. Brominated polystyrene is preferably used at 10-30% by weight, particularly preferably at 15-25% by weight, based in each case on the overall composition, with at least one of the other components being reduced to such an extent that the sum of all weight percentages always equals 100.

In a further alternative embodiment, however, flame retardant synergists can also be used - if required and taking into account the disadvantages described at the beginning with regard to the hazard classification H351 and the under Detrimental effects on the tracking resistance - also antimony trioxide and antimony pentoxide are used.

Brominated polystyrene is commercially available in various product grades. Examples include FireMaster ^® PBS64 the company. Lanxess, Cologne, Germany and Saytex ^® HP-3010 of the company. Albemarle, Baton Rouge, United States.

Among the flame retardants to be used as component D) are aluminum tris (diethylphosphinate)] [CAS No. 225789-38-8] and the combination of aluminum tris (diethylphosphinate) and melamine polyphosphate or the combination of aluminum tris (diethylphosphinate) and at least an aluminum salt of phosphonic acid is very particularly preferred, the latter combination being particularly preferred.

In the case of the combinations of aluminum tris (diethylphosphinate) and melamine polyphosphate or of aluminum tris (diethylphosphinate) and at least one aluminum salt of phosphonic acid, the proportion of aluminum tris (diethylphosphinate) is preferably in the range from 40 to 90 parts by weight, particularly preferably in Range from 50 to 80 parts by weight, very particularly preferably in the range from 60 to 70 parts by weight, in each case based on 100 parts by weight of the combination of aluminum tris (diethylphosphinate) and melamine polyphosphate or the combination of aluminum tris (diethylphosphinate) and at least one aluminum salt Phosphonic acid.

As component D) to be assigned aluminum tris (diethylphosphinate) in the art as Exolit ^® OP1230 or OP1240, Exolit ^® is the Fa. Clariant International Ltd. Muttenz, Switzerland, known. Melamine polyphosphate is commercially available in various product grades. Examples of this are, for example, Melapur® 200/70 from BASF, Ludwigshafen, Germany and Budit® 3141 from Budenheim, Budenheim, Germany.

Preferred aluminum salts of phosphonic acid are selected from the group of primary aluminum phosphonate [AI (H ₂ P0 ₃ ) ₃ ], basic aluminum phosphonate [AI (OH) H ₂ P0 ₃ ) ₂ -2H ₂ 0],

AI ₂ (HR0 _{3) 3} · C AI ₂ 0 ₃ nH ₂ 0 with x in the range 2.27 to 1 and n ranges from 0 to 4,

AI ₂ (HP0 ₃ ) ₃ · (H ₂ 0) _{q of} the formula (II) with q in the range from 0 to 4, in particular aluminum phosphonate tetrahydrate _{[AI 2 (HP0 3} ) ₃ -4H ₂ 0] or secondary aluminum _{phosphonate [AI 2} ( HP0 ₃ ) ₃ ], AI ₂ M _z (HP0 ₃ ) _y (OH) _v . (H ₂ 0) _{W of} the formula (III) in which M is alkali metal ion (s) and z is in the range from 0.01 to 1.5, y in the range of 2 , 63-3.5, v ranges from 0 to 2 and w ranges from 0 to 4, and

AI ₂ (HP0 ₃ ) _u (H ₂ P0 ₃ ) _t · (H ₂ 0) _{S of} the formula (IV), wherein u in the range from 2 to 2.99, t in the range from 2 to 0.01 and s im Range from 0 to 4, where in formula (III) z, y and v and in formula (IV) u and t can only assume such numbers that the corresponding aluminum salt of the phosphonic acid is uncharged as a whole.

Preferred alkali metals M in formula (III) are sodium and potassium.

The aluminum salts of phosphonic acid described can be used individually or as a mixture.

Particularly preferred aluminum salts of phosphonic acid are selected from the group consisting of primary aluminum phosphonate [AI (H ₂ P0 ₃ ) ₃ ], secondary aluminum _{phosphonate [AI 2} (HP0 ₃ ) ₃ ], basic aluminum phosphonate [AI (OH) H ₂ P0 ₃ ) ₂ -2H ₂ 0],

Aluminum phosphonate tetrahydrate [AI _{2 (HP0 3} ) ₃ -4H ₂ 0] and

AI ₂ (HR0 ₃ ) ₃ · C Al ₂ 0 ₃ n H ₂ 0 with x in the range from 2.27 to 1 and n in the range from 0 to 4.

Secondary aluminum _{phosphonate AI 2} (HP0 ₃ ) ₃ [CAS No. 71449-76-8] and secondary aluminum phosphonate tetrahydrate _{AI 2 (HP0 3} ) ₃ -4H ₂ 0 [CAS No. 156024-71-4] are very particularly preferred is secondary aluminum _{phosphonate AI 2} (HP0 ₃ ) ₃ .

The position of aluminum salts of phosphonic acid to be used according to the invention as component D) is described, for example, in WO 2013/083247 A1. It is usually carried out by reacting an aluminum source, preferably aluminum isopropoxide, aluminum nitrate, aluminum chloride or aluminum hydroxide, with a phosphorus source, preferably phosphonic acid, ammonium phosphonate, alkali metal phosphonate, and optionally with a template in a solvent at 20 to 200 ° C for a period of up to 4 days . The aluminum source and phosphorus source are mixed for this purpose, heated under hydrothermal conditions or under reflux, filtered off and washed dried. Preferred templates are 1,6 hexanediamine, guanidine carbonate or ammonia. The preferred solvent is water.

Component E)

At least one further additive different from components B) to D) is used as component E). Preferred additives to be used as component E) are antioxidants, heat stabilizers, UV stabilizers, gamma ray stabilizers, components for reducing water absorption or hydrolysis stabilizers, antistatic agents, emulsifiers, nucleating agents, plasticizers, processing aids, impact modifiers, lubricants and / or mold release agents, components for reducing the amount of mold release agents Water absorption, flow aids or elastomer modifiers. Chain-lengthening additives, colorants other than component B) and, if required, further laser absorbers. The additives can be used alone or in a mixture or in the form of masterbatches.

Preferred thermal stabilizers for component E) are sterically hindered phenols, in particular those containing at least one 2,6-di-tert-butylphenyl group and / or 2-tert-butyl-6-methylphenyl group, and also phosphites, hypophosphites, in particular Sodium hypophosphite NaH ₂ P0 _2, hydroquinones, aromatic secondary amines, substituted resorcinols, salicylates, benzotriazoles and benzophenones, 3,3'-thiodipropionic esters and variously substituted representatives of these groups or mixtures thereof.

In one embodiment, copper salts, preferably in combination with sodium hypophosphite NaH ₂ P0 ₂ , can also be used as thermal stabilizers of component E). The preferred copper salt used is copper (l) iodide [CAS No. 7681-65-4] and / or copper (triphenylphosphino) iodide [CAS No. 47107-74-4]. The copper salts are preferably used in combination with sodium hypophosphite NaH ₂ P0 ₂ or with at least one alkali iodide. The preferred alkali iodide is potassium iodide [CAS No. 7681-11-0].

Thermal stabilizers to be used as component E) are preferably used in amounts of 0.01 to 2 parts by mass, particularly preferably 0.05 to 1 part by mass, in each case based on 100 parts by mass of component A). UV stabilizers to be used as component E) are preferably substituted resorcinols, salicylates, benzotriazoles and benzophenones, HALS derivatives (“hindered amine light stabilizers”) containing at least one 2,2,6,6-tetramethyl-4-piperidyl unit or benzophenones used.

UV stabilizers to be used as component E) are preferably used in amounts of 0.01 to 2 parts by mass, particularly preferably 0.1 to 1 part by mass, in each case based on 100 parts by mass of component A).

In one embodiment, inorganic pigments are preferably used as component E) and different from component B), particularly preferably ultramarine blue, bismuth vanadate [CAS No. 14059-33-7], iron oxide [CAS No. 1309-37-1], titanium dioxide [CAS No. 13463-67-7 (rutile) or CAS No. 1317-70-0 (anatase)], barium sulfate [CAS No. 7727-43-7], zinc sulfide [CAS No. 1314-98-3] or Tin-titanium-zinc oxides [CAS No. 923954-49-8], particularly preferably barium sulfate.

Colorants to be used as component E) and different from component B) are preferably used in one embodiment, organic colorants, particularly preferably phthalocyanines, quinacridones, benzimidazoles, in particular Ni-2-hydroxynaphylbenzimidazole [CAS No. 42844-93-9] and / or pyrimidine-azo-benzimidazole [CAS No. 72102-84-2] and / or Pigment Yellow 192 [CAS No. 56279-27-7], also perylenes, anthraquinones, in particular Cl Solvent Yellow 163 [CAS No. 13676-91-0].

The list of inorganic or organic colorants to be used as component E) is not exhaustive.

In one embodiment, if required, carbon black or nigrosine can be used as the colorant.

In a preferred embodiment, titanium dioxide is used as the colorant for component E) titanium white, also referred to as pigment white 6 or CI 77891.

Nucleating agents to be used as component E) are preferably sodium or calcium phenyl phosphinate, aluminum oxide or silicon dioxide, and very particularly preferably talc, although this list is not exhaustive.

Flow aids to be used as component E) are preferably copolymers of at least one α-olefin with at least one methacrylic acid ester or acrylic acid ester of an aliphatic alcohol. Copolymers in which the α-olefin is composed of ethene and / or propene and the methacrylic acid ester or acrylic acid ester as the alcohol component are linear or are particularly preferred contains branched alkyl groups with 6 to 20C atoms. Acrylic acid (2-ethyl) hexyl ester is very particularly preferred. Copolymers suitable as flow aids are distinguished not only by their composition but also by their low molecular weight. Accordingly, for the polymer compositions to be preserved against thermal degradation according to the invention, copolymers are particularly suitable which have an MFI value measured at 190 ° C. and a load of 2.16 kg of at least 100 g / 10 min, preferably at least 150 g / 10 min , particularly preferably of at least 300 g / 10 min. The MFI, Melt-Flow-Index, is used to characterize the flow of a melt of a thermoplastic and is subject to the standards ISO 1133 or ASTM D 1238. A copolymer of ethene and acrylic acid (2-ethyl) -hexyl ester with MFI is particularly preferred as a flow aid 550, known as Lotryl® 37EH550.

Chain-extending additives to be used as component E) are preferably di- or polyfunctional branching or chain-extending additives containing at least two branching or chain-extending functional groups per molecule. As branching or chain-extending additives, low molecular weight or oligomeric compounds are preferred which have at least two chain-extending functional groups per molecule which can react with primary and / or secondary amino groups and / or amide groups and / or carboxylic acid groups. Functional groups with a chain-lengthening effect are preferably isocyanates, alcohols, blocked isocyanates, epoxides, maleic anhydride, oxazolines, oxazines, oxazolones, epoxides being preferred.

Particularly preferred di- or polyfunctional branching or chain-extending additives are diepoxides based on diglycidyl ether (bisphenol and epichlorohydrin), based on amine epoxy resin (aniline and epichlorohydrin), based on diglycidyl esters (cycloaliphatic dicarboxylic acids and epichlorohydrin) individually or in mixtures -Bis [p-hydroxyphenyl] propane diglycidyl ether, bis [p- (N-methyl-N-2,3-epoxy-propylamino) -phenyl] -methane and epoxidized fatty acid esters of glycerol, containing at least two epoxy groups per Molecule.

Particularly preferred di- or polyfunctional branching or chain-extending additives are glycidyl ethers, very particularly preferably bisphenol A diglycidyl ether [CAS No. 98460-24-3] or epoxidized fatty acid esters of glycerol, and also very particularly preferably epoxidized soybean oil [CAS No. 8013- 07-8] and / or epoxidized linseed oil. Plasticizers to be used with preference as component E) are dioctyl phthalate, dibenzyl phthalate, butylbenzyl phthalate, hydrocarbon oils or N- (n-butyl) benzenesulfonamide.

Elastomer modifiers to be used preferably as component E) include, inter alia, one or more graft polymers of

E.1 5 to 95 wt .-%, preferably 30 to 90 wt .-%, at least one vinyl monomer and

E.2 95 to 5% by weight, preferably 70 to 10% by weight of one or more

Graft bases with glass transition temperatures <10 ° C., preferably <0 ° C., particularly preferably <-20 ° C., the percentages by weight being based on 100% by weight of the elastomer modifier.

The graft base E.2 generally has an average particle size d50 to be determined by laser diffractometry in accordance with ISO 13320 in the range from 0.05 to 10 μm, preferably in the range from 0.1 to 5 μm, particularly preferably in the range from 0.2 until 1 pm.

Monomers for E.1 are preferably mixtures of

E.1.1 50 to 99% by weight vinyl aromatics and / or ring-substituted vinyl aromatics, in particular styrene, α-methylstyrene, p-methylstyrene, p-chlorostyrene, and / or methacrylic acid (C ₁ -C ₈ ) -alkyl esters, in particular . Methyl methacrylate, ethyl methacrylate) and

E.1.2 1 to 50% by weight of vinyl cyanides, in particular unsaturated nitriles such as acrylonitrile and methacrylonitrile, and / or (meth) acrylic acid (CC ₈ ) alkyl esters, in particular methyl methacrylate, glycidyl methacrylate, n-butyl acrylate, t-butyl acrylate, and / or derivatives, in particular anhydrides and imides of unsaturated carboxylic acids, in particular maleic anhydride or N-phenyl maleimide, the percentages by weight being based on 100% by weight of the elastomer modifier.

Preferred monomers E.1.1 are to be selected from at least one of the monomers styrene, α-methylstyrene and methyl methacrylate, preferred monomers E.1.2 are selected from at least one of the monomers acrylonitrile, maleic anhydride, glycidyl methacrylate and methyl methacrylate. Particularly preferred monomers are E.1.1 styrene and E.1.2 acrylonitrile. Graft bases E.2 suitable for the graft polymers to be used in the elastomer modifiers are, for example, diene rubbers, EPDM rubbers, i.e. those based on ethylene / propylene and optionally diene, and also acrylate, polyurethane, silicone, chloroprene and ethylene / vinyl acetate rubbers. EPDM stands for ethylene propylene diene rubber.

Preferred graft bases E.2 are diene rubbers, in particular based on butadiene, isoprene, etc. or mixtures of diene rubbers or copolymers of diene rubbers or mixtures thereof with other copolymerizable monomers, in particular according to E.1.1 and E.1.2, with the proviso that the glass transition temperature of the Component E.2 is <10 ° C, preferably <0 ° C, particularly preferably <-10 ° C.

Particularly preferred graft bases E.2 are ABS polymers (emulsion, bulk and suspension ABS) where ABS stands for acrylonitrile-butadiene-styrene, such as those used, for example, in US Pat. B. in DE-A 2 035 390 or in DE-A 2 248 242 or in Ullmann, Enzyklopadie der Technischen Chemie, Vol. 19 (1980), pp. 277-295. The gel fraction of the graft base E.2 is preferably at least 30% by weight, particularly preferably at least 40% by weight (measured in toluene).

The elastomer modifiers or graft polymers to be used as component E) are produced by free-radical polymerization, preferably by emulsion, suspension, solution or bulk polymerization, in particular by emulsion or bulk polymerization.

Particularly suitable graft rubbers are also ABS polymers which are produced by redox initiation with an initiator system of organic hydroperoxide and ascorbic acid according to US Pat. No. 4,937,285.

Since, as is known, the graft monomers are not necessarily completely grafted onto the graft base in the graft reaction, according to the invention graft polymers are also understood to mean those products which are obtained by (co) polymerization of the graft monomers in the presence of the graft base and which are also obtained during processing.

Acrylate rubbers which are also suitable are based on graft bases E.2, the preferred polymers of acrylic acid alkyl esters, optionally with up to 40% by weight, based on E.2 other polymerizable, ethylenically unsaturated monomers. The preferred polymerizable acrylic acid esters include CrCg-alkyl esters, preferably methyl, ethyl, butyl, n-octyl and 2-ethylhexyl esters; Haloalkyl esters, preferably Halogen-CrCg-alkyl esters, such as chloroethyl acrylate, glycidyl esters and mixtures of these monomers. Graft polymers with butyl acrylate as the core and methyl methacrylates as the shell, in particular Paraloid® EXL2300, from Dow Corning Corporation, Midland, Michigan, USA, are particularly preferred.

As an alternative to the ethylenically unsaturated monomers, monomers with more than one polymerizable double bond can be copolymerized for crosslinking. Preferred crosslinking monomers are esters of unsaturated monocarboxylic acids with 3 to 8 carbon atoms and unsaturated monohydric alcohols with 3 to 12 carbon atoms, or saturated polyols with 2 to 4 OH groups and 2 to 20 carbon atoms, preferably ethylene glycol dimethacrylate, allyl methacrylate; polyunsaturated heterocyclic compounds, preferably trivinyl and triallyl cyanurate; polyfunctional vinyl compounds, preferably di- and trivinylbenzenes; but also triallyl phosphate and diallyl phthalate.

Particularly preferred crosslinking monomers are allyl methacrylate, ethylene glycol dimethacrylate, diallyl phthalate and heterocyclic compounds which have at least 3 ethylenically unsaturated groups.

Very particularly preferred crosslinking monomers are the cyclic monomers triallyl cyanurate, triallyl isocyanurate, triacryloylhexahydro-s-triazine, triallylbenzenes. The amount of crosslinked monomers is preferably 0.02 to 5% by weight, in particular 0.05 to 2% by weight, based on the graft base E.2.

In the case of cyclic crosslinking monomers having at least 3 ethylenically unsaturated groups, it is advantageous to limit the amount to less than 1% by weight of the graft base E.2.

Preferred "other" polymerizable, ethylenically unsaturated monomers which, in addition to the acrylic acid esters, can optionally be used to produce the graft base E.2, are acrylonitrile, styrene, _{α-methylstyrene, acrylamides, vinyl-C 1 -C 6} -alkyl ethers, methyl methacrylate, glycidyl methacrylate, butadiene . Preferred acrylate rubbers as the graft base E.2 are emulsion polymers which have a gel content of at least 60% by weight.

Further preferred suitable graft bases according to E.2 are silicone rubbers with graft-active sites, as are described in DE-A 3 704 657, DE-A 3 704 655, DE-A 3 631 540 and DE-A 3631 539. Preferred graft polymers with a silicone component are those which have methyl methacrylate or styrene-acrylonitrile as the shell and a silicone / acrylate graft as the core. The preferred styrene-acrylonitrile shell to be used is Metabien ^® SRK200. Preferably as a shell of methyl methacrylate is to be assigned Metabien ^® S2001 or S2030 Metabien ^® or Metabien ^® SX-005th Metabien is particularly preferred ^® S2001. The products with the trade name Metabien ^® are available from Mitsubishi Rayon Co., Ltd., Tokyo, Japan.

For crosslinking, monomers with more than one polymerizable double bond can be copolymerized. Preferred examples of crosslinking monomers are esters of unsaturated monocarboxylic acids with 3 to 8 carbon atoms and unsaturated monohydric alcohols with 3 to 12 carbon atoms, or saturated polyols with 2 to 4 OH groups and 2 to 20 carbon atoms, preferably ethylene glycol dimethacrylate, allyl methacrylate ; polyunsaturated heterocyclic compounds, preferably trivinyl and triallyl cyanurate; polyfunctional vinyl compounds, preferably di- and trivinylbenzenes; but also triallyl phosphate and diallyl phthalate.

Preferred crosslinking monomers are allyl methacrylate, ethylene glycol dimethacrylate, diallyl phthalate and heterocyclic compounds which have at least 3 ethylenically unsaturated groups.

Particularly preferred crosslinking monomers are the cyclic monomers triallyl cyanurate, triallyl isocyanurate, triacryloylhexahydro-s-triazine and triallylbenzenes. The amount of crosslinked monomers is preferably 0.02 to 5% by weight, in particular 0.05 to 2% by weight, based on the graft base E.2.

In the case of cyclic crosslinking monomers with at least 3 ethylenically unsaturated groups, it is advantageous to limit the amount to less than 1% by weight of the graft base E.2.

Preferred "other" polymerizable, ethylenically unsaturated monomers which, in addition to the acrylic acid esters, can optionally be used to produce the graft base E.2, are acrylonitrile, styrene, _{α-methylstyrene, acrylamides, vinyl-C 1 -C 6} -alkyl ethers, methyl methacrylate, glycidyl methacrylate, butadiene. Preferred acrylate rubbers as the graft base E.2 are emulsion polymers which have a gel content of at least 60% by weight.

In addition to elastomer modifiers based on graft polymers, it is also possible to use elastomer modifiers that are not based on graft polymers and have glass transition temperatures <10 ° C., preferably <0 ° C., particularly preferably <-20 ° C. exhibit. These preferably include elastomers with a block copolymer structure and also thermoplastically meltable elastomers, in particular EPM, EPDM and / or SEBS rubbers (EPM = ethylene-propylene copolymer, EPDM = ethylene-propylene-diene rubber and SEBS = styrene-ethene Butene-styrene copolymer).

Lubricants and / or mold release agents to be used as component E) are preferably long-chain fatty acids, especially stearic acid or behenic acid, their salts, especially Ca or Zn stearate, and their ester derivatives, especially those based on pentaerythritol, especially fatty acid esters of pentaerythritol or amide derivatives , in particular ethylene-bis-stearylamide, montan waxes and low molecular weight polyethylene or polypropylene waxes.

For the purposes of the present invention, montan waxes are mixtures of straight-chain, saturated carboxylic acids with chain lengths in the range from 28 to 32 carbon atoms.

According to the invention, lubricants and / or mold release agents from the group of esters of saturated or unsaturated aliphatic carboxylic acids with 8 to 40 carbon atoms with aliphatic saturated alcohols or amides of amines with 2 to 40 carbon atoms with unsaturated aliphatic carboxylic acids with 8 to 40 are particularly preferred C atoms or, instead of the carboxylic acids, metal salts of saturated or unsaturated aliphatic carboxylic acids with 8 to 40 C atoms are used.

Lubricants and / or mold release agents to be used very particularly preferably as component E) are to be selected from the group pentaerythritol tetrastearate [CAS No. 115-83-3], ethylene-bis-stearylamide, calcium stearate and ethylene glycol dimontanate. Calcium stearate [CAS No. 1592-23-0] or ethylene-bis-stearylamide [CAS No. 110-30-5] is particularly preferred. Ethylene-bis-stearylamide (Loxiol® EBS from Emery Oleochemicals) is particularly preferably used.

Hydrolysis stabilizers or components for reducing water absorption which are preferably used as component E) are preferably polyesters, polybutylene terephthalate and / or polyethylene terephthalate being preferred and polyethylene terephthalate being very particularly preferred. The polyesters are preferably used in concentrations of 5 to 20% by weight and particularly preferably in concentrations of 7 to 15% by weight, each based on the total polymer composition and with the proviso that the sum of all percent by weight of the polymer composition is always 100% by weight .-% results.

Laser absorbers to be used with preference as component E) are selected from the group consisting of tin oxide, tin orthophosphate, barium titanate, aluminum oxide, Copper hydroxyphosphate, copper orthophosphate, potassium copper diphosphate, copper hydroxide, bismuth trioxide and antraquinone. Tin oxide is particularly preferred.

In an alternative embodiment, however, antimony tin oxide, antimony trioxide or antimony pentoxide can also be used as the laser absorber - if required, taking into account the disadvantages described at the beginning with regard to the hazard classification H351 and the adverse effects on the tracking resistance.

The laser absorber can be used directly as a powder or in the form of masterbatches. Preferred masterbatches are those based on polyester and / or polyolefins, preferably polyethylene. The laser absorber can be used individually or as a mixture of several laser absorbers.

Laser absorbers can absorb laser light of a certain wavelength. In practice, this wavelength is in the range from 157 nm to 10.6 pm. Examples of lasers of these wavelengths are described in WO2009 / 003976 A1. Nd: YAG lasers, with which wavelengths of 1064, 532, 355 and 266 nm can be achieved, and CO2 lasers are preferred.

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are preferred

A) 100 parts by mass of at least one polyester, preferably C ₂ -C ₀ - polyalkylene terephthalate or polycarbonate, particularly PBT,

B) 0.01 to 5 parts by mass of at least one sulfide containing cerium, and

C) 1 to 150 mass fractions of at least one filler or reinforcement material to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E-glass), amorphous silica, quartz powder , Calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite, pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, especially glass fibers Provided that the high-voltage components or high-voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the Color numbers RAL2003, RAL2004, RAL2008 or RAL2009, most preferably the color number RAL 2003.

According to the invention, floch-voltage components, in particular floch-voltage components for electromobility, based on polymer compositions, are preferred

A) 100 parts by mass of at least one polyester, preferably C ₂ -C ₀ - polyalkylene terephthalate or polycarbonate, particularly PBT,

B) 0.01 to 5 parts by mass of at least one sulfide containing cerium, and

C) 0.01 to 2 parts by mass of at least titanium dioxide, with the proviso that the floch voltage components or floch voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, most preferably the color number RAL 2003.

According to the invention, floch-voltage components, in particular floch-voltage components for electromobility, based on polymer compositions, are preferred

A) 100 parts by mass of at least one polyester, preferably C ₂ -C ₀ - polyalkylene terephthalate or polycarbonate, particularly PBT,

B) 0.01 to 5 parts by mass of at least cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide, and

C) 0.01 to 2 parts by mass of at least titanium dioxide, with the proviso that the floch voltage components or floch voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003. According to the invention, floch-volt components, in particular floch-volt components for electromobility, based on polymer compositions, are particularly preferred

A) 100 parts by mass of at least one polyester, preferably C ₂ -C ₀ - polyalkylene terephthalate or polycarbonate, particularly PBT, B) 0.01 to 5 parts by mass of at least cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide, and

C) 1 to 150 parts by mass of at least one filler or reinforcement material to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E-glass), amorphous silica, quartz powder , Calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite, pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, especially glass fibers Provided that the high-voltage components or high-voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003 .

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are preferred

A) to 100 parts by mass of at least one polyester, preferably C ₂ -C ₁₀ polyalkylene terephthalate or polycarbonate, in particular PBT,

B) 0.01 to 5 parts by mass of at least one sulphide containing cerium,

C) 1 to 150 parts by mass of at least one filler or reinforcing material, preferably to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E glass), amorphous silica , Quartz flour, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite,

Pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, especially glass fibers, and

D) 3 to 100 parts by mass of at least one flame retardant additive, preferably selected from mineral flame retardants, nitrogen-containing

Flame retardants or phosphorus-containing flame retardants, with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003.

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are particularly preferred

A) to 100 parts by mass of at least one polyester, preferably C ₂ -C ₁₀ polyalkylene terephthalate or polycarbonate, in particular PBT,

B) 0.01 to 5 parts by mass of at least cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide,

C) 1 to 150 parts by mass of at least one filler or reinforcing material, preferably to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E glass), amorphous silica , Quartz flour, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite, pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, in particular and

D) 3 to 100 parts by mass of at least one flame retardant additive, preferably selected from mineral flame retardants, nitrogen-containing flame retardants or phosphorus-containing flame retardants, with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system of the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003.

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are preferred A) to 100 parts by mass of at least one polyester, preferably C ₂ -C ₁₀ polyalkylene terephthalate or polycarbonate, in particular PBT,

B) 0.01 to 5 parts by mass of at least one sulphide containing cerium,

C) 1 to 150 parts by mass of at least one filler and reinforcing material, preferably to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E glass), amorphous Silica, quartz flour, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite,

Pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, especially glass fibers, and

E) 0.01 to 2 parts by mass of at least one heat stabilizer, preferably to be selected from the group of sterically hindered phenols, in particular those containing at least one 2,6 di-tert-butylphenyl group and / or 2-tert-butyl-6- methylphenyl group, also the phosphites, the hypophosphites, especially sodium hypophosphite NaH ₂ P0 ₂ , the hydroquinones, the aromatic secondary amines and the 3,3'-thiodipropionic acid ester, with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003. Titanium dioxide is preferably used as component E).

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are preferred

A) to 100 parts by mass of at least one polyester, preferably C ₂ -C ₁₀ polyalkylene terephthalate or polycarbonate, in particular PBT,

B) 0.01 to 5 parts by mass of at least cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide,

C) 1 to 150 parts by mass of at least one filler and reinforcing material, preferably to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, Aluminum borosilicate glass with an alkali content of 1% (E glass), amorphous silica, quartz powder, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite , Pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, especially glass fibers, and

E) 0.01 to 2 parts by mass of at least one thermal stabilizer, preferably to be selected from the group of sterically hindered phenols, in particular those containing at least one 2,6 di-tert-butylphenyl group and / or 2-tert-butyl-6- methylphenyl group, also the phosphites, the hypophosphites, especially sodium hypophosphite NaH ₂ P0 ₂ , the hydroquinones, the aromatic secondary amines and the 3,3'-thiodipropionic acid ester with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system Color numbers RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011 correspond, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003. Titanium dioxide is preferably used as component E).

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are preferred

A) to 100 parts by mass of at least one polyester, preferably C ₂ -C ₁₀ polyalkylene terephthalate or polycarbonate, in particular PBT,

B) 0.01 to 5 parts by mass of at least one sulphide containing cerium,

C) 1 to 150 parts by mass of at least one filler and reinforcing material, preferably to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E glass), amorphous Silicic acid, quartz flour, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulphate, feldspar, wollastonite, montmorillonite, pseudoboehmite of the formula AIO (OH), especially magnesium carbonate and talc , D) 3 to 100 parts by mass of at least one flame retardant additive, preferably to be selected from mineral flame retardants, containing nitrogen

Flame retardants or phosphorus-containing flame retardants, and

E) 0.01 to 2 parts by mass of at least one thermal stabilizer, preferably to be selected from the group of sterically hindered phenols, in particular those containing at least one 2,6 di-tert-butylphenyl group and / or 2-tert-butyl-6- methylphenyl group, also the phosphites, the hypophosphites, especially sodium hypophosphite NaH ₂ P0 ₂ , the hydroquinones, the aromatic secondary amines and the 3,3'-thiodipropionic acid ester, with the proviso that the high-voltage components or high-voltage components for the

Electromobility in the RAL color system of the color number RAL2003, RAL2004, RAL2007,

RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the

Color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003. Titanium dioxide is preferably used as component E).

According to the invention, high-voltage components, in particular high-voltage components for electromobility, based on polymer compositions, are particularly preferred

A) 100 parts by mass of at least one polyester, preferably C ₂ -C ₀ - polyalkylene terephthalate or polycarbonate, particularly PBT,

B) 0.01 to 5 parts by mass of at least cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide,

C) 1 to 150 parts by mass of at least one filler and reinforcing material, preferably to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, or ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1% (E glass), amorphous Silica, quartz flour, calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite,

Pseudoboehmite with the formula AIO (OH), magnesium carbonate and talc, especially glass fibers,

D) 3 to 100 parts by mass of at least one flame retardant additive, preferably selected from mineral flame retardants, nitrogen-containing

Flame retardants or phosphorus-containing flame retardants, and E) 0.01 to 2 parts by mass of at least one thermal stabilizer, preferably to be selected from the group of sterically hindered phenols, in particular those containing at least one 2,6 di-tert-butylphenyl group and / or 2-tert-butyl-6- methylphenyl group, also the phosphites, the hypophosphites, especially sodium hypophosphite NaH ₂ P0 ₂ , the hydroquinones, the aromatic secondary amines and the 3,3'-thiodipropionic acid ester, with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003. Titanium dioxide is preferably used as component E).

Procedure

The present invention also relates to a process for the preparation of the high-voltage components, in particular in high-voltage components of the electric mobility, employed polymer compositions by reacting A) at least one polyester, preferably polyester, C ₂ is preferably -C ₀ -Polyalkylenterephthalat or polycarbonate, particularly PBT, and B ) at least one sulphide containing cerium, and optionally at least one of the further components C), D) or E) in at least one mixing tool, with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system of the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009, very particularly preferably the color number RAL 2003. Preferably, for every 100 parts by mass of at least one polyester 0.01 to 5 parts by mass of at least one sulfide are contained nd cerium used. Preferred sulfides containing cerium are cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide.

The present invention also relates to a method for producing high-voltage components, in particular high-voltage components for electromobility, by using the polymer compositions in injection molding, including the special processes GIT (gas injection technology), WIT (water injection technology) and PIT (projectile injection technology), in extrusion processes, including in the profile -Extrusion, or further processed by blow molding. If appropriate, the polymer compositions are discharged into strands before further processing, cooled to granulability, if appropriate dried and granulated. In one embodiment, the polymer composition is temporarily stored as granules. The invention preferably relates to a method for producing

High-voltage components, in particular high-voltage components for electromobility, by adding A) at least one polyester, preferably C ₂ -C ₁₀ polyalkylene terephthalate or polycarbonate, in particular PBT, and B) at least one sulfide containing cerium, preferably to 100 parts by mass of at least one polyester 0.01 up to 5 parts by mass of at least one sulphide containing cerium with one another

Mixes polymer compositions, discharges them into strands, cools them down to granulability, dries and granulates and then uses injection molding of the polymer compositions, including the special processes GIT (gas injection technology), WIT (water injection technology) and PIT (projectile injection technology), in extrusion processes, including profile extrusion, or by blow molding, further processed with the proviso that the high-voltage components or high-voltage components for electromobility in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011, particularly preferably the color numbers RAL2003, RAL2004, RAL2008 or RAL2009 , very particularly preferably the color number RAL 2003. Preferred sulfides containing cerium are cerium (III) sulfide (Ce ₂ S ₃ ) or cerium (III) sulfide / lanthanum (III) sulfide.

High-voltage components

Preferred high-voltage components, in particular high-voltage components for electromobility, are used in the electric drive train and / or in the battery system. Particularly preferred high-voltage components are covers for electrics or electronics, control units, covers / housings for fuses, relays, battery cell modules, fuse holders, fuse plugs, connection terminals, cable holders or sheaths, in particular sheaths for high-voltage power rails and high-voltage power distribution rails ("bus bar").

Examples

To demonstrate the improvements in the properties described according to the invention, appropriate polyester-based polymer compositions were first prepared by compounding. For this purpose, the individual components were mixed in a twin-screw extruder (ZSK 25 Compounder from Coperion Werner & Pfleiderer (Stuttgart, Germany)) at temperatures between 270 and 300 ° C., discharged as a strand, cooled to granulability and granulated. After drying (usually two days at 80 ° C. in a vacuum drying cabinet), the granules were processed at temperatures in the range from 270 to 290 ° C. to form standard test specimens for the respective tests.

In the context of the present tests, the measure of bleeding was the discoloration of a soft PVC film (W-PVC, FB110 white, normal cold-resistant from Jedi Kunststofftechnik GmbH, Eitorf, Germany) with the dimensions 30 _* 20 _* 2 mm ^3, which was stored in a hot air oven at 80 ° C for 12 hours _* 40 _* 2mm ³ clamped between two plastic boards with the dimensions 60 on the basis of the compositions described in Table 2 below. The assessment was then carried out visually according to the gray scale according to ISO 105-A02, where '5' means that the PVC film showed no change in color and 'T' means that the PVC film showed a marked change in color.

In the context of the present invention, the measure of lightfastness was the discoloration of the molding compositions described in Table 2 in the form of 60 _* 40 _* 2 mm ³ sheets after UV storage with a UV light (Suntest CPS +, 300-800 nm , 45-130 klx, with Window Glass Filter 250-765 W / m ² from Atlas Material Testing Technology GmbH, Linsengericht, Germany) for 96 hours. The discoloration was assessed visually based on the Blue Wool Scale in accordance with DIN EN ISO 105-B02, where '8' stands for excellent light fastness (slight color change) and 'T' stands for very low light fastness (strong color change).

In the context of the present invention, the contrast of a surface treated with a laser beam compared to a surface not treated with the laser beam is a measure of the quality of laser inscribability at 1064 nm. For this purpose, the DPL-Genesis-Marker (8W) laser marking device from ACI Laser GmbH, Chemnitz, Germany, was used, which was equipped with the MagicMarkV3 marking software and the F-Theta 163 focusing lens. A Nd: YAG laser crystal acted as the laser and delivered laser light with a wavelength of 1064 nm. To compare the contrast after labeling, a writing speed (“Speed”) of 300mm / s, a pulse frequency (“Frequency”) of 8000Hz and a line spacing “(Line spacing) ”of 100pm, whereby the pulse width (“ Pulswidth ”) was 3ps and the laser power (“ Power ”) on the device was 90%.

The contrast was classified as follows using the gray scale according to ISO 105-A03: Classification (-): The laser-irradiated area differed from the non-laser-irradiated area comparable to a gray scale according to ISO 105-A03 of class 3, 3/4, 4, 4/5 or 5. The laser-irradiated area could therefore not be distinguished, or only poorly, from the non-laser-irradiated area.

• Classification (+): The laser-irradiated area differed from the non-laser-irradiated area comparable to a gray scale according to ISO 105-A03 of classes 1 to 2/3. The laser-irradiated area could thus be easily distinguished from the non-laser-irradiated area

Educts:

Component A) Linear polybutylene terephthalate (Pocan® B 1300, commercial product of Lanxess Deutschland GmbH, Cologne, Germany) with a

Intrinsic viscosity of 93 cm ³ / g (measured in phenol: 1,2-dichlorobenzene = 1: 1 at 25 ° C)

Component B1): cerium (III) sulfide / lanthanum (III) sulfide [C.I. Pigment Orange 78 (Neolor Light Orange S from Baotou Hongbo Te Technology Co. Ltd., 'Inner Mongolia', China)

Component X / 1): 12H-phthaloperin-12-one [CAS No. 6925-69-5] as Macrolex® Orange 3G from Lanxess Deutschland GmbH, Cologne

Tab. II The results in Tab. II show that only example 1 according to the invention also showed a sufficiently good contrast after laser inscription with an Nd: YAG laser crystal at 1064 nm with simultaneously high lightfastness and very little tendency to bleeding, whereas the colorants according to the prior art did not have both good contrast and good lightfastness and a low tendency to bleeding at the same time.

Claims

Claims

1. Polymer compositions containing at least one polyester and at least one sulfide containing cerium.

2. Polymer compositions according to claim 1, characterized in that

A) to 100 parts by mass of at least one polyester,

B) 0.01 to 5 parts by mass of at least one sulphide containing cerium are used.

3. Polymer compositions according to claim 1 or 2, characterized in that at least cerium (III) sulfide or cerium (III) sulfide / lanthanum (III) sulfide is used.

4. Polymer compositions according to any one of claims 1 to 3, characterized in that as the polyester C ₂ -C ₀ polyalkylene terephthalate or polycarbonate, in particular polybutylene terephthalate, is used.

5. Polymer compositions according to one or more of claims 1 to 4, characterized in that in addition to components A) and B)

C) at least one filler or reinforcing material, preferably 1 to 150 parts by mass, based on 100 parts by mass of component A) is used, with the proviso that the polymer compositions in the RAL color system of the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011.

6. Polymer compositions according to claim 5, characterized in that in addition to components A), B) and C) or instead of C) also D) at least one flame retardant, preferably 3 to 100 parts by mass, based on 100 parts by mass of component A) is used, with the proviso that the polymer compositions in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011.

7. Polymer compositions according to claim 6, characterized in that in addition to components A), B), C) and D) or instead of C) and / or

D) or E) at least one further additive different from components B), C) and D), preferably 0.01 to 80 parts by mass, based on 100 parts by mass of component A), with the proviso that the Polymer compositions in the RAL color system correspond to the color number RAL2003, RAL2004, RAL2007, RAL2008, RAL2009, RAL2010 or RAL2011.

8. Polymer compositions according to one or more of claims 5 to

7, characterized in that the filler or reinforcing material is to be selected from the group of glass spheres or solid or hollow glass spheres, or glass fibers, ground glass, amorphous quartz glass, aluminum borosilicate glass with an alkali content of 1%, amorphous silica, quartz powder, calcium silicate, calcium metasilicate, magnesium carbonate , Kaolin, calcined kaolin, chalk, kyanite, powdered or ground quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite, pseudoboehmite of the formula AIO (OH), magnesium carbonate and talc, especially glass fibers.

9. Polymer compositions according to one or more of claims 6 to

8, characterized in that the flame retardant is to be selected from mineral flame retardants, nitrogen-containing flame retardants or phosphorus-containing flame retardants.

10. Polymer compositions according to one or more of claims 7 to

9, characterized in that at least one thermal stabilizer is used as additive E), preferably selected from the group of sterically hindered phenols, in particular those containing at least one 2,6 di-tert-butylphenyl group and / or 2-tert-butyl 6-methylphenyl group, also the phosphites, the hypophosphites, especially sodium hypophosphite NaH ₂ P0 ₂ , the hydroquinones, the aromatic secondary amines and the 3,3'-thiodipropionic acid ester.

11. High-voltage components, in particular high-voltage components for electromobility, based on polymer compositions according to one or more of claims 1 to 10.

12. High-voltage components according to claim 11, characterized in that they are covers for electrics or electronics, control devices, covers / housings for fuses, relays, battery cell modules, fuse holders, fuse plugs, connection terminals, cable holders or sheaths, in particular sheaths of high-voltage power rails and high-voltage power distribution rails, acts.

13. Use of at least one sulfide containing cerium for the production of polyester-based polymer compositions and / or for marking Polyester-based products as high-voltage components, preferably polyester-based high-voltage components for electromobility, using lasers.

14. A process for the production of high-voltage components, in particular high-voltage components for electromobility, characterized in that A) at least one polyester and B) at least one sulphide containing cerium, preferably in amounts of 0.01 to 5 parts by mass of sulphide containing cerium per 100 parts by mass Polyester, mixed with one another to form polymer compositions, extruded into strands, cooled to granulability, dried and granulated and then the polymer compositions in injection molding, including the special processes of gas injection technology, water injection technology and projectile injection technology, in extrusion processes, including profile extrusion, or by blow molding processed.

15. Use of claim 13 or method of claim 14, characterized in that, in particular polybutylene terephthalate, is used as the polyester according C ₂ -C ₀ polyalkylene terephthalate or polycarbonate.