Flame retardant polyamides for improved LSR compression set

Abstract

A layered structure comprising a) a first layer of a polymer composition A comprising a1) one or more polymers(s), as component A1, a2) one or more components(s) comprising one or more metal(s) of the 4th, 5th and / or 6th period of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and b) a second layer adjacent to the first layer of a curable polymer composition B comprising b1) one or more curable silicone rubber(s), as component B1, b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2; an article cured from the inventive layered structure; a process for preparing an article comprising the steps: i) providing a polymer composition A and a curable polymer composition B, wherein the polymer composition A comprises: a1) one or more polymers(s), as component A1, a2) one or more components(s) comprising one or more metal(s) of the 4th, 5th and / or 6th period of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and wherein the polymer composition B comprises: b1) one or more curable silicone rubber(s), as component B1, b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2; and ii) adhering the polymer composition B to a substrate of the polymer composition A by curing the polymer composition B in a two-step injection molding process; and the use of one or more compound(s) comprising one or more metal(s) of the 4th, 5th and / or 6th period of the IUPAC Periodic Table of the Elements dated 4 May 2022, in the inventive article.

Description

Flame Retardant Polyamides for Improved LSR Compression SetDescriptionThe present invention relates to a layered structure comprising a) a first layer of a polymer composition A comprising a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and b) a second layer of a curable polymer composition B comprising b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2, in direct contact with the first layer; an article cured from the inventive layered structure; a process for preparing an article comprising the steps: i) providing a polymer composition A and a polymer composition B, wherein the polymer composition A comprises: a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and wherein the curable polymer composition B comprises: b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2; and ii) adhering the polymer composition B to a substrate of the polymer composition A by curing the polymer composition B in a two-step injection molding process; and the use of one or more compound(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, in the inventive article.Plastic-silicone composites are attracting more and more attention in plastics technology. Molding addition-cured silicone onto a plastic substrate, particularly a thermoplastic substrate, results in multi material design and performance that combines the best attributes of both substrates.Silicon rubbers are for example used to connect two plastic parts in order to achieve a proper adhesion / sealing, thereby forming articles (plastic-silicone composites) like HV-connectors. Often, liquid silicon rubber (LSR) is used since complex molded articles can thus be produced.Since the articles are generally exposed to elevated temperature during its preparation and during its use, e.g. in case of HV-connectors during charging, also the silicon rubber is heat aged affecting its properties. Additionally, various substances are emitted from the plastic part of the article at elevated temperatures, which can cause a huge damage on the silicon rubber. The impact of this heat ageing on the properties of the silicon rubber in the article is generally quantified by the compression set.It is therefore an object of the present invention to provide plastic-silicone composites having improved heat ageing properties.It was found by the inventors that especially plastic-silicone composites comprising flame retardants comprising phosphorous release organic compounds, especially acidic phosphorous species, which have a significant negative effect on the heat ageing properties of the silicon rubber and therefore on the compression sets of the plastic-silicone composites.It was further found by the inventors that compounds which are able to scavenge or complex these organic compounds, especially the acidic phosphorous species, result in a significant improvement of the heat ageing properties of the silicon rubber and therefore on the compression sets of the plastic-silicone composites. Such compounds are one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022.The present invention therefore relates to a layered structure comprising a) a first layer of a polymer composition A comprising a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and b) a second layer of a curable polymer composition B comprising b1 ) one or more curable silicone rubber(s), as component B1 ,b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2, in direct contact with (adjacent to) the first layer.The present invention further relates to an article cured from the inventive layered structure.The present invention further relates to a process for preparing an article comprising the steps: i) providing a polymer composition A and a polymer composition B, wherein the polymer composition A comprises: a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and wherein the polymer composition B comprises: b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2; and ii) adhering the polymer composition B to a substrate of the polymer composition A by curing the polymer composition B in a two-step injection molding process.The present invention further relates to the use of one or more compound(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, in the inventive article.By the addition of one or more compound(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, to the plastic- silicone composite comprising one or more flame retardant(s) comprising phosphorous, the heat ageing properties of the plastic-silicone composite (inventive article) are significantly improved. This is quantified by the compression set of the article.Composition AThe polymer composition A preferably comprises, more preferably consists of a1 ) 10 to 96.99 wt%, preferably 20 to 79.65 wt% of component A1 , a2) 0.01 to 5 wt%, preferably 0.05 to 2.5 wt% of component A2, a3) 3 to 30 wt%, preferably 10 to 35 wt% of component A3, a4) 0 to 50 wt%, preferably 10 to 35 wt% of component A4, a5) 0 to 50 wt%, preferably 0.3 to 20 wt% of component A5,where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.Component A1The composition A comprises 10 to 96.99 wt%, preferably 20 to 79.65 wt% of component A1 , where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.If components A4 or A5 or combinations thereof are present in the thermoplastic moulding composition, the maximum amount of component A1 is decreased by the minimum amount of each of components A4 or A5, or a combination thereof.Generally, component A1 may be any polymer or polymer mixture known in the art, for example thermoplastics, duroplastics (thermosets), elastomers and / or thermoplastic elastomers. Preferably, component A1 comprises, preferably consists of one or more thermoplastic polymers. Said thermoplastic polymers are preferably amorphous or semi-crystalline, more preferably semi-crystalline.Examples for suitable polymers are polyester, polyamide, polypropylene, polyethylene, polyetheretherketone, polystyrene, polyvinyl chloride, polycarbonate and acrylonitrile-butadiene-sty- rene.Preferably, component A1 comprises, more preferably consists of: one or more thermoplastic polymer(s), more preferably one or more polyamide(s) and / or one or more polyesters, most preferably one or more polyamide(s).PolyamidesThe polyamides A1 of the composition A generally have a viscosity number of 90 to 350 ml / g, preferably from 100 to 240 ml / g. The viscosity number (VN) of the polyamides and polyamide compositions according to the present invention is determined according to EN ISO 307:2019 in sulphuric acid (0.5% [m / v] of polyamide in 96 wt.-% [m / m] sulphuric acid at 25 °C), unless indicated otherwise.Preference is given to semi-crystalline or amorphous, preferably semi-crystalline polyamides.The molecular weight (weight average) is preferably at least 5000, described by the way of example in the following US patents: 2071250, 2071251 , 2130523, 2130948, 2241322, 2312966, 2512606, and 3393210.Examples are polyamides that derive from lactams having from 7 to 13 ring members, e.g. polycaprolactam, polycaprylolactam, and polylaurolactam, and also polyamides obtained via reaction of dicarboxylic acids with diamines.Dicarboxylic acids which may be used are alkane dicarboxylic acids having from 6 to 12, in particular from 6 to 10 carbon atoms, and aromatic dicarboxylic acids. Merely as examples, those that may be mentioned here are adipic acid, azelaic acid, sebacic acid, dodecanedioic acid and terephthalic and / or isophthalic acid.Particularly suitable diamines are alkane diamines having from 6 to 12, in particular 6 to 8 carbon atoms, and also m-xylylene diamine, di[4-aminophenyl]methane, di[4-aminocyclohexyl]me- thane, 2,2-di[4-aminophenyl]propane, 2,2-di[4-aminocyclohexyl]propane and 1 ,5-diamino-2- methylpantane.Preferred polyamides are polyhexamethylene adipamid, polyhexamethylene sebacamid, and polycaprolactam, and also PA 6 / 66 copolyamides, in particular having a proportion of 5 to 95 wt% of caprolactam units (e.g. Ultramid® C31 from BASF SE).Other suitable polyamides are obtainable from uj-aminoalkyl nitriles, e.g. aminocapronitrile (PA 6) and adiponitrile with hexamethylene diamine (PA 66) via what is known as direct polymerization in the presence of water, for example as described in DE-A 10313681 , EPA 1198491 and EP 0 922 065.Mention may also be made of polyamides obtainable, by way of example, via condensation of 1 ,4-diaminobutane with adipic acid at an elevated temperature (PA 46). Preparation processes for polyamides of this structure are described by way of example in EP-A 38094, EP-A 38582, and EP-A 39524.Other suitable examples are polyamides obtainable via copolymerization of two or more of the above-mentioned monomers, and mixtures of two or more polyamides in any desired mixing ratio. Particular preference is given to mixtures of PA 66 with other polyamides, in particular blends of PA 6 and PA 66, and to PA6 / 66 copolyamides and PA 66 / 6 copolyamides.Other copolyamides which have proven particularly advantageous are semiaromatic copolyamides, such as PA 6 / 6T and PA 66 / 6T, PA6T / 66, PA9T, PA6I / 6T, where the triamine content of these is preferably less than 0.5 wt%, more preferably less than 0.3 wt% (see EP-A 299444). Other polyamides resistant to high temperatures are known from EP-A 1994075 (PA 6T / 6I / MXD6).The processes described in EP-A 129195 and EP-A 129196 can be used to prepare the preferred semiaromatic copolyamides with low triamine content.The following list, which is not comprehensive, comprises polyamides A1 mentioned above and other polyamides A1 useful for the purposes of the present invention, and the monomers comprised:AB polymers:PA 4 PyrrolidonePA 6 e-CaprolactamPA 7 EthanolactamPA 8 CaprylolactamPA 9 9-Aminopelargonic acidPA 11 11-Aminoundecanoic acidPA 12 LaurolactamAA / BB polymers:PA 46 Tetramethylenediamine, adipic acidPA 66 Hexamethylenediamine, adipic acidPA 69 Hexamethylenediamine, azelaic acidPA 610 Hexamethylenediamine, sebacic acidPA 612 Hexamethylenediamine, decanedicarboxylic acidPA 613 Hexamethylenediamine, undecanedicarboxylic acidPA 1212 1 ,12-Dodecanediamine, decanedicarboxylic acidPA 1313 1 ,13-Diaminotridecane, undecanedicarboxylic acidPA 6T Hexamethylenediamine, terephthalic acidPA MXD6 m-Xylylenediamine, adipic acidAA / BB polymers:Hexamethylenediamine, isophthalic acidTrimethylhexamethylenediamine, terephthalic acid(see below)(see PA 6 and PA 6T)(see PA 6 and PA 66)(see PA 6 and PA 12)(see PA 66, PA 6 and PA 610)(see PA 6I and PA 6T)(see PA 6I and PA 6T)Diaminodicyclohexylmethane, laurolactam as PA 6I / 6T + diaminodicyclohexylmethaneLaurolactam, dimethyldiaminodicyclohexylmethane, isophthalic acid Laurolactam, dimethyldiaminodicyclohexylmethane, terephthalic acidPhenylenediamine, terephthalic acidPreferred polyamides A1 are PA 6, PA 66, PA 46, PA 6 / 66, PA 66 / 6, PA 6 / 636, PA 6T / 6, PA 6T / 6I, PA 6I / 6T, PA 6T / 6I / 66, PA 9T, PA 6T / 66, PA 66 / 6T or mixtures thereof.Most preferred are PA 6, PA 66, PA 6 / 66 and PA 66 / 6 as well as PA 6 / 636, or mixtures thereof. Most preferred are PA 6, PA 66 or mixtures thereof.Suitable copolyamides are constructed from:A*1) 20.0 to 90.0 wt% of units derived from terephthalic acid and hexamethylene diamine,A*2) 0 to 50.0 wt% of units derived from e-caprolactam,A*3) 0 to 80.0 wt% of units derived form adipic acid and hexamethylene diamine,A*4) 0 to 40.0 wt% of further polyamide-forming monomers, wherein the proportion of component A*2) or A*3) or A*4), or mixtures thereof is at least 10.0 wt%.Component A*1) comprises 20.0 to 90.0 wt% of units derived from terephthalic acid and hexamethylene diamine.In addition to the units derived from terephthalic acid and hexamethylene diamine, the copolyamides optionally comprise units derived from e-caprolactam and / or units derived from adipic acid and hexamethylene diamine and / or units derived from further polyamide-forming monomers.Aromatic dicarboxylic acids A*4) comprise 8 to 16 carbon atoms. Suitable aromatic dicarboxylic acids include for example isophthalic acid, substituted terephthalic and isophthalic acids, such as 3t-butylisophthalic acid, polycyclic dicarboxylic acids, for example 4,4’- and 3,3’-diphenyldi- carboxylic acid, 4,4’- and 3,3’-diphenylmethanedicarboxylic acid, 4,4’- and 3,3’-sulphodiphenyl- carboxylic acid, 1 ,4- or 2,6-naphthalenedicarboxylic acid, phenoxyterephthalic acid, whereby isophthalic acid is particularly preferred.Further, polyamide-forming monomers A*4) may be derived from dicarboxylic acids having 4 to 16 carbon atoms and aliphatic or cycloaliphatic diamines having 4 to 16 carbon atoms, and also from aminocarboxylic acids / corresponding lactams having 7 to 12 carbon atoms. Examples of suitable monomers of these types are suberic acid, azelaic acid and sebacic acid as representatives of aliphatic dicarboxylic acids, 1 ,4-butanediamine, 1 ,5-pentandiamine, piperazine, 4,4’- diaminodicyclohexylmethane, 2,2-(4,4’-diaminodicyclohexylpropane) and 3,3’-dimethyl-4,4’-dia- minodicyclohexylmethane or meta-xylylenediamine as representatives of diamines and caprolactam, enantholactam, uj-aminoundecanoic acid and laurolactam as representatives of lac- tams / aminocarboxylic acids.Examples for such copolyamides are more particularly elucidated in DE-A 102009 011668.As component A1 the composition can comprise at least one copolyamide produced by polymerization of the componentsA’) 15% to 84% by weight of at least one lactam,B’) 16% to 85% by weight of a monomer mixture (M) comprising the componentsB1 ’) at least one C32-C4o-dimer acid andB2’) at least one C4-Ci2-diamine, wherein the percentages by weight of the components A’) and B’) are in each case based on the sum of the percentages by weight of the components A’) and B’).In the context of the present invention the terms "component A’)" and "at least one lactam" are used synonymously and therefore have the same meaning.The same applies for the terms "component B’)" and "monomer mixture (M)". These terms are likewise used synonymously in the context of the present invention and therefore have the same meaning.According to the invention the at least one copolyamide is produced by polymerization of 15% to 84% by weight of the component A') and 16% to 85% by weight of the component B'), preferably by polymerization of 40% to 83% by weight of the component A') and 17% to 60% by weight of the component B') and especially preferably by polymerization of 60% to 80% by weight of the component A) and 20% to 40% by weight of the component B'), wherein the percentages by weight of the components A') and B') are in each based on the sum of the percentages by weight of the components A') and B').The sum of the percentages by weight of the components A') and B') is preferably 100% by weight.It will be appreciated that the weight percentages of the components A') and B') relate to the weight percentages of the components A') and B') prior to the polymerization, i.e. when the components A') and B') have not yet reacted with one another. During the polymerization of the components A') and B') the weight ratio of the components A') and B') may optionally change.According to the invention the at least one copolyamide is produced by polymerization of the components A') and B'). The polymerization of the components A') and B') is known to those skilled in the art. The polymerization of the components A') with B') is typically a condensation reaction. During the condensation reaction the component A') reacts with the components B1') and B2') present in the component B') and optionally with the component B3') described hereinbelow which may likewise be present in the component B'). This causes amide bonds to form between the individual components. During the polymerization the component A') is typically at least partially in open chain form, i.e. in the form of an amino acid.The polymerization of the components A') and B') may take place in the presence of a catalyst. Suitable catalysts include all catalysts known to those skilled in the art which catalyze the polymerization of the components A') and B'). Such catalysts are known to those skilled in the art. Preferred catalysts are phosphorus compounds, for example sodium hypophosphite, phosphorous acid, triphenylphosphine or triphenyl phosphite.The polymerization of the components A') and B') forms the at least one copolyamide which therefore comprises units derived from the component A') and units derived from the component B'). Units derived from the component B') comprise units derived from the components B1') and B2') and optionally from the component B3').The polymerization of the components A') and B') forms the copolyamide as a copolymer. The copolymer may be a random copolymer. It may likewise be a block copolymer.Formed in a block copolymer are blocks of units derived from the component B') and blocks of units derived from the component A'). These appear in alternating sequence. In a random copolymer units derived from the component A') alternate with units derived from the component B'). This alternation is random. For example two units derived from the component B') may be followed by one unit derived from the component A') which is followed in turn by a unit derived from the component B') and then by a unit comprising three units derived from the component A')-It is preferable when the at least one copolyamide is a random copolymer.Production of the at least one copolyamide preferably comprises steps of:I) polymerizing the components A') and B') to obtain at least a first copolyamide,II) pelletizing the at least one first copolyamide obtained in step I) to obtain at least one pelletized copolyamide,III) extracting the at least one pelletized copolyamide obtained in step II) with water to obtain at least one extracted copolyamide,IV) drying the at least one extracted copolyamide obtained in step III) at a temperature (TT) to obtain the at least one copolyamide,The polymerization in step I) may be carried out in any reactor known to those skilled in the art. Preference is given to stirred tank reactors. It is also possible to use auxiliaries known to those skilled in the art, for example defoamers such as polydimethylsiloxane (PDMS), to improve reaction management.In step II) the at least one first copolyamide obtained in step I) may be pelletized by any methods known to those skilled in the art, for example by strand pelletization or underwater pelletization.The extraction in step III) may be effected by any methods known to those skilled in the art.During the extraction in step III) byproducts typically formed during the polymerization of the components A') and B') in step I) are extracted from the at least one pelletized copolyamide.In step IV) the at least one extracted copolyamide obtained in step III) is dried. Processes for drying are known to those skilled in the art. According to the invention the at least one extracted copolyamide is dried at a temperature (TT). The temperature (TT) is preferably above the glass transition temperature (TG<O) of the at least one copolyamide and below the melting temperature (TM(O) of the at least one copolyamide.The drying in step IV) is typically carried out for a period in the range from 1 to 100 hours, preferably in the range from 2 to 50 hours and especially preferably in the range from 3 to 40 hours.It is thought that the drying in step IV) further increases the molecular weight of the at least one copolyamide.The at least one copolyamide typically has a glass transition temperature (TG<O). The glass transition temperature (TG<O) is for example in the range from 20 °C to 50 °C, preferably in the range from 23 °C to 47 °C and especially preferably in the range from 25 °C to 45 °C determined according to ISO 11357-2:2014.In the context of the present invention the glass transition temperature (TG<O) of the at least one copolyamide is based, in accordance with ISO 11357-2:2014, on the glass transition temperature (TG<O) of the dry copolyamide.In the context of the present invention “dry” is to be understood as meaning that the at least one copolyamide comprises less than 1 % by weight, preferably less than 0.5% by weight and especially preferably less than 0.1 % by weight of water based on the total weight of the at least one copolyamide. “Dry" is more preferably to be understood as meaning that the at least one copolyamide comprises no water and most preferably that the at least one copolyamide comprises no solvent.In addition, the at least one copolyamide typically has a melting temperature (TM<O). The melting temperature (TM<O) of the at least one copolyamide is, for example, in the range from 150 to 210 °C, preferably in the range from 160 to 205 °C and especially preferably in the range from 160 to 200 °C determined according to ISO 11357-3:2014.The at least one copolyamide generally has a viscosity number (VN<o) in the range from 150 to 300 ml / g determined in a 0.5% by weight solution of the at least one copolyamide in a mixture of phenol / o-dichlorobenzene in a weight ratio of 1 : 1 .It is preferable when the viscosity number (VN<o) of the at least one copolyamide is in the range from 160 to 290 mL / g and particularly preferably in the range from 170 to 280 mL / g determined in a 0.5% by weight solution of the at least one copolyamide in a mixture of phenol / o-dichloro- benzene in a weight ratio of 1 : 1 .Component A’)According to the invention the component A’) is at least one lactam.In the context of the present invention "at least one lactam” is understood as meaning either precisely one lactam or a mixture of 2 or more lactams.Lactams are known per se to those skilled in the art. Preferred according to the invention are lactams having 4 to 12 carbon atoms.In the context of the present invention "lactams" are to be understood as meaning cyclic amides having preferably 4 to 12 carbon atoms, particularly preferably 5 to 8 carbon atoms, in the ring.Suitable lactams are for example selected from the group consisting of 3-aminopropanolactam (propio-3-lactam; p-lactam; p-propiolactam), 4-aminobutanolactam (butyro-4-lactam; y-lactam; y-butyrolactam), aminopentanolactam (2-piperidinone; 5-lactam; 5-valerolactam), 6-aminohexa- nolactam (hexano-6-lactam; e-lactam; e-caprolactam), 7-aminoheptanolactam (heptano-7-lac- tam; ^-lactam; ^-heptanolactam), 8-aminooctanolactam (octano-8-lactam; r]-lactam; p-octanolac- tam), 9-aminononanolactam (nonano-9-lactam; 0-lactam; 0-nonanolactam), 10-aminodecano- lactam (decano-10-lactam; uj-decanolactam), 11-aminoundecanolactam (undecano-11 -lactam; uj-undecanolactam) and 12-aminododecanolactam (dodecano-12-lactam; uj-dodecanolactam).The present invention therefore also provides a process where the component A’) is selected from the group consisting of 3-aminopropanolactam, 4-aminobutanolactam, 5-aminopentanolac- tam, 6-aminohexanolactam, 7-aminoheptanolactam, 8-aminooctanolactam, 9-aminononanolac- tam, 10-aminodecanolactam, 11-aminoundecanolactam and 12-aminododecanolactam.The lactams may be unsubstituted or at least monosubstituted. If at least monosubstituted lactams are used, the nitrogen atom and / or the ring carbon atoms thereof may bear one, two, or more substituents selected independently of one another from the group consisting of Ci- to Cw-alkyl, C5- to Ce-cycloalkyl, and C5- to C -aryl.Suitable Ci- to C -alkyl substituents are, for example, methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, and tert-butyl. A suitable C5- to Ce-cycloalkyl substituent is for example cyclohexyl. Preferred C5- to C -aryl substituents are phenyl or anthranyl.It is preferable to employ unsubstituted lactams, y-lactam (y-butyrolactam), 6-lactam (5- valerolactam) and e-lactam (e-caprolactam) being preferred. Particular preference is given to 5- lactam (6-valerolactam) and e-lactam (e-caprolactam), e-caprolactam being especially preferred.Monomer mixture (M)According to the invention the component B’) is a monomer mixture (M). The monomer mixture (M) comprises the components B1'), at least one C32-C4o-dimer acid, and B2'), at least one C4- Ci2-diamine.In the context of the present invention a monomer mixture (M) is to be understood as meaning a mixture of two or more monomers, wherein at least components BT) and B2’) are present in the monomer mixture (M).In the context of the present invention the terms "component B1 ’)" and "at least one C32-C4o-di- mer acid" are used synonymously and therefore have the same meaning. The same applies for the terms "component B2’)" and "at least one C4-Ci2-diamine". These terms are likewise used synonymously in the context of the present invention and therefore have the same meaning.The monomer mixture (M) comprises, for example, in the range from 45 to 55 mol% of the component BT) and in the range from 45 to 55 mol% of the component B2’) in each case based on the sum of the mole percentages of the components BT) and B2’), preferably based on the total amount of substance of the monomer mixture (M).It is preferable when the component B’) comprises in the range from 47 to 53 mol% of component BT) and in the range from 47 to 53 mol% of component B2’) in each case based on the sum of the mole percentages of the components BT) and B2’), preferably based on the total amount of substance of the component B’).It is particularly preferable when the component B’) comprises in the range from 49 to 51 mol% of the component BT) and in the range from 49 to 51 mol% of the component B2’) in each case based on the sum total of the mole percentages of the components BT) and B2'), preferably based on the total amount of substance of the component B’).The mole percentages of the components BT) and B2’) present in the component B’) typically sum to 100 mol%.The component B’) may additionally comprise a component B3’), at least one C4-C2o-diacid.In the context of the present invention, the terms "component B3’)" and "at least one C4-C2o-di- acid" are used synonymously and therefore have the same meaning.When the component B’) additionally comprises the component B3’) it is preferable when component B’) comprises in the range from 25 to 54.9 mol% of the component B1 ’), in the range from 45 to 55 mol% of the component B2’) and in the range from 0.1 to 25 mol% of the component B3’) in each case based on the total amount of substance of the component B’).It is particularly preferable when the component B’) then comprises in the range from 13 to 52.9 mol% of the component B1 ’), in the range from 47 to 53 mol% of the component B2’) and in the range from 0.1 to 13 mol% of the component B3’) in each case based on the total amount of substance of the component B’).It is most preferable when the component B’) then comprises in the range from 7 to 50.9 mol% of the component B1 ’), in the range from 49 to 51 mol% of the component B2’) and in the range from 0.1 to 7 mol% of the component B3’) in each case based on the total amount of substance of the component B’).When component B’) additionally comprises the component B3’) the mole percentages of the components B1 '), B2') and B3') typically sum to 100 mol%.The monomer mixture (M) may further comprise water.The components B1') and B2') and optionally B3') of the component B’) can react with one another to obtain amides. This reaction is known per se to those skilled in the art. The component B’) may therefore comprise components BT), B2’) and optionally B3’) in fully reacted form, in partially reacted form or in unreacted form. It is preferable when the component B’) comprises the components BT), B2’) and optionally B3’) in unreacted form.In the context of the present invention "in unreacted form” is thus to be understood as meaning that the component B1 ’) is present as the at least one C32-C4o-dimer acid and the component B2’) is present as the at least one C4-Ci2-diamine and optionally the component B3’) is present as the at least one C4-C2o-diacid.If the components BT) and B2’) and optionally B3’) have at least partly reacted the components BT) and B2’) and any B3’) are thus at least partially in amide form.Component BT)According to the invention the component BT) is at least one C32-C4o-dimer acid.In the context of the present invention "at least one C32-C4o-dimer acid" is to be understood as meaning either precisely one C32-C4o-dimer acid or a mixture of two or more C32-C4o-dimer acids.Dimer acids are also referred to as dimer fatty acids. C32-C4o-dimer acids are known per se to those skilled in the art and are typically produced by dimerization of unsaturated fatty acids. This dimerization may be catalyzed by argillaceous earths for example.Suitable unsaturated fatty acids for producing the at least one C32-C4o-dimer acid are known to those skilled in the art and are for example unsaturated Ci6-fatty acids, unsaturated Cis-fatty acids and unsaturated C2o-fatty acids.It is therefore preferable when the component B1') is produced from unsaturated fatty acids selected from the group consisting of unsaturated Ci6-fatty acids, unsaturated Cis-fatty acids and unsaturated C2o-fatty acids, wherein the unsaturated Cis-fatty acids are particularly preferred.A suitable unsaturated Ci6-fatty acid is palmitoleic acid ((9Z)-hexadeca-9-enoic acid) for example.Suitable unsaturated Cis-fatty acids are for example selected from the group consisting of pe- troselic acid ((6Z)-octadeca-6-enoic acid), oleic acid ((9Z)-octadeca-9-enoic acid), elaidic acid ((9E)-octadeca-9-enoic acid), vaccenic acid ((11 E)-octadeca-11-enoic acid), linoleic acid ((9Z,12Z)-octadeca-9,12-dienoic acid), a-linolenic acid ((9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid), y-linolenic acid ((6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid), calendulic acid ((8E,10E,12Z)-octadeca-8,10,12-trienoic acid), punicic acid ((9Z,11 E,13Z)-octadeca-9,11 ,13- trienoic acid), a-eleostearic acid ((9Z,11 E,13E)-octadeca-9,11 ,13-trienoic acid) and p-eleos- tearic acid ((9E,11 E,13E)-octadeca-9,11 , 13-trienoic acid). Particular preference is given to unsaturated Cis-fatty acids selected from the group consisting of petroselic acid ((6Z)-octadeca-6- enoic acid), oleic acid ((9Z)-octadeca-9-enoic acid), elaidic acid ((9E)-octadeca-9-enoic acid), vaccenic acid ((11 E)-octadeca-11-enoic acid), linoleic acid ((9Z,12Z)-octadeca-9,12-dienoic acid).Suitable unsaturated C2o-fatty acids are for example selected from the group consisting of gado- leic acid ((9Z)-eicosa-9-enoic acid), ecosenoic acid ((11Z)-eicosa-11-enoic acid), arachidonic acid ((5Z,8Z,11Z,14Z)-eicosa-5,8,11 ,14-tetraenoic acid) and timnodonic acid ((5Z,8Z,11Z, 14Z,17Z)-eicosa-5, 8,11 ,14, 17-pentaenoic acid).The component BT) is especially preferably at least one Cse-dimer acid.The at least one Cse-dimer acid is preferably produced from unsaturated Cis-fatty acids. It is particularly preferable when the Cse-dimer acid is produced fromCis-fatty acids selected from the group consisting of petroselic acid ((6Z)-octadeca-6-enoic acid), oleic acid ((9Z)-octadeca-9-enoic acid), elaidic acid ((9E)-octadeca-9-enoic acid), vac- cenic acid ((11 E)-octadeca-11-enoic acid) and linoleic acid ((9Z,12Z)-octadeca-9,12-dienoic acid).Production of the component B1 ') from unsaturated fatty acids may also form trimer acids and residues of unconverted unsaturated fatty acid may also remain.The formation of trimer acids is known to those skilled in the art.According to the invention the component BT) preferably comprises not more than 0.5% by weight of unreacted unsaturated fatty acid and not more than 0.5% by weight of trimer acid, particularly preferably not more than 0.2% by weight of unreacted unsaturated fatty acid and not more than 0.2% by weight of trimer acid, in each case based on the total weight of component BT).Dimer acids (also known as dimerized fatty acids or dimer fatty acids) are thus to be understood as meaning generally, and especially in the context of the present invention, mixtures produced by oligomerization of unsaturated fatty acids. They are producible for example by catalytic dimerization of plant-derived unsaturated fatty acids, wherein the starting materials employed are in particular unsaturated Ci6- to C2o-fatty acids. The bonding proceeds primarily by the Diels-Alder mechanism, and results, depending on the number and position of the double bonds in the fatty acids used to produce the dimer acids, in mixtures of primarily dimeric products having cycloaliphatic, linear aliphatic, branched aliphatic, and also Ce-aromatic hydrocarbon groups between the carboxyl groups. Depending on the mechanism and / or any subsequent hydrogenation, the aliphatic radicals may be saturated or unsaturated and the proportion of aromatic groups may also vary. The radicals between the carboxylic acid groups then comprise 32 to 40 carbon atoms for example. Production preferably employs fatty acids having 18 carbon atoms so that the dimeric product thus has 36 carbon atoms. The radicals which join the carboxyl groups of the dimer fatty acids preferably comprise no unsaturated bonds and no aromatic hydrocarbon radicals.In the context of the present invention production thus preferably employs Cis-fatty acids. It is particularly preferable to employ linolenic, linoleic and / or oleic acid.Depending on reaction management the above described oligomerization affords mixtures which comprise primarily dimeric, but also trimeric, molecules and also monomeric molecules and other by-products. Purification by distillation is customary. Commercial dimer acids generally comprise at least 80% by weight of dimeric molecules, up to 19% by weight of trimeric molecules, and at most 1 % by weight of monomeric molecules and of other by-products.It is preferable to use dimer acids that consist to an extent of at least 90% by weight, preferably to an extent of at least 95% by weight, very particularly preferably to an extent of at least 98% by weight, of dimeric fatty acid molecules.The proportions of monomeric, dimeric, and trimeric molecules and of other by-products in the dimer acids may be determined by gas chromatography (GC), for example. The dimer acids are converted to the corresponding methyl esters by the boron trifluoride method (cf. DIN EN ISO 5509) before GC analysis and then analyzed by GC.In the context of the present invention it is thus a fundamental feature of “dimer acids” that production thereof comprises oligomerization of unsaturated fatty acids. This oligomerization forms predominantly, i.e. preferably to an extent of at least 80% by weight, particularly preferably at least 90% by weight, very particularly preferably at least 95% by weight and in particular at least 98% by weight, dimeric products. The fact that the oligomerization thus forms predominantly dimeric products comprising precisely two fatty acid molecules justifies this designation which is in any case commonplace. An alternative expression for the relevant term “dimer acids” is thus “mixture comprising dimerized fatty acids”.The dimer acids to be used are obtainable as commercial products. Examples include Radiacid 0970, Radiacid 0971 , Radiacid 0972, Radiacid 0975, Radiacid 0976, and Radiacid 0977 from Oleon, Pripol 1006, Pripol 1009, Pripol 1012, and Pripol 1013 from Croda, Empol 1008, Empol 1012, Empol 1061 , and Empol 1062 from BASF SE, and Unidyme 10 and Unidyme Tl from Arizona Chemical.The component B1') has an acid number in the range from 190 to 200 mg KOH / g for example.Component B2')According to the invention the component B2') is at least one C4-Ci2-diamine.In the context of the present invention "at least one C4-Ci2-diamine" is to be understood as meaning either precisely one C4-Ci2-diamine or a mixture of two or more C4-Ci2-diamines.In the context of the present compound, "C4-Ci2-diamine" is to be understood as meaning aliphatic and / or aromatic compounds having four to twelve carbon atoms and two amino groups (- NH2 groups). The aliphatic and / or aromatic compounds may be unsubstituted or additionally at least monosubstituted. If the aliphatic and / or aromatic compounds are additionally at least monosubstituted, they may bear one, two or more substituents that do not take part in the polymerization of the components A’) and B’). Such substituents are for example alkyl or cycloalkyl substituents. These are known per se to those skilled in the art. The at least one C4-C12- diamine is preferably unsubstituted.Suitable components B2’) are for example selected from the group consisting of 1 ,4-diaminobu- tane (butane-1 ,4-diamine; tetramethylenediamine; putrescine), 1 ,5-diaminopentane (pentamethylenediamine; pentane-1 ,5-diamine; cadaverine), 1 ,6-diaminohexane (hexamethylenediamine; hexane-1 ,6-diamine), 1 ,7-diaminoheptane, 1 ,8-diaminooctane, 1 ,9-diaminononane, 1 ,10-dia- minodecane (decamethylenediamine), 1 ,11 -diaminoundecane (undecamethylenediamine) and 1 ,12-diaminododecane (dodecamethylenediamine).It is preferable when the component B2’) is selected from the group consisting of tetramethylenediamine, pentamethylenediamine, hexamethylenediamine, decamethylenediamine and dodecamethylenediamine.Component B3')According to the invention the component B3’) optionally present in the component B’) is at least one C4-C2o-diacid.In the context of the present invention, "at least one C4-C2o-diacid" is to be understood as meaning either precisely one C4-C2o-diacid or a mixture of two or more C4-C2o-diacids.In the context of the present invention "C4-C2o-diacid" is to be understood as meaning aliphatic and / or aromatic compounds having two to eighteen carbon atoms and two carboxyl groups (- COOH groups). The aliphatic and / or aromatic compounds may be unsubstituted or additionally at least monosubstituted. If the aliphatic and / or aromatic compounds are additionally at least monosubstituted, they may bear one, two or more substituents that do not take part in the polymerization of components A’) and B’). Such substituents are for example alkyl or cycloalkyl substituents. These are known to those skilled in the art. Preferably, the at least one C4-C2o-di- acid is unsubstituted.Suitable components B3’) are for example selected from the group consisting of butanedioic acid (succinic acid), pentanedioic acid (glutaric acid), hexanedioic acid (adipic acid), heptanedioic acid (pimelic acid), octanedioic acid (suberic acid), nonanedioic acid (azelaic acid), decanedioic acid (sebacic acid), undecanedioic acid, dodecanedioic acid, tridecanedioic acid, tetradecanedioic acid and hexadecanedioic acid.It is preferable when the component B3’) is selected from the group consisting of pentanedioic acid (glutaric acid), hexanedioic acid (adipic acid), decanedioic acid (sebacic acid) and dodecanedioic acid.Most preferably, component A1 is selected from the group consisting of PA 6, PA 66, PA 46, PA 6 / 66, PA 66 / 6, PA 6 / 6.36, PA610, PA 6T / 6, PA 6T / 6I, PA6I / 6T, PA 6T / 6I / 66, PA 9T and PA 6T / 66, more preferably from PA 6, PA 6.6, PA 66 / 6, PA 6 / 6.6 and mixtures thereof, and most preferably PA 6 and PA 66 and mixtures thereof.PolyesterSuitable polyesters A1 are based on aromatic dicarboxylic acids and on aliphatic and / or aromatic dihydroxy compounds.Polyesters based on aromatic dicarboxylic acids and aliphatic dihydroxy compounds are preferred, in particular those aliphatic dihydroxy compounds having from 2 to 10 carbon atoms are a first group of preferred polyesters.These polyesters based on aromatic dicarboxylic acids and aliphatic dihydroxy compounds are known per se and are described in the literature. They comprise, in the main chain, an aromatic ring that derives from the aromatic dicarboxylic acid. The aromatic ring can also have substitution, e.g. by halogen such as chlorine and bromine, or by Ci-C4-alkyl groups such as methyl, ethyl, isopropyl, n-propyl, and n-butyl, isobutyl and tert-butyl groups.These polyesters based on aromatic dicarboxylic acids and aliphatic dihydroxy compounds can be produced by reaction of aromatic dicarboxylic acids, or their esters or other ester-forming derivatives, with aliphatic dihydroxy compounds (in a manner known per se).Preferred dicarboxylic acids that may be mentioned are 2,6-naphthalenedicarboxylic acid, terephthalic acid and isophthalic acid and mixtures thereof. Up to 30 mol%, preferably not more than 10 mol %, of the aromatic dicarboxylic acids can be replaced by aliphatic or cycloaliphatic dicarboxylic acids such as adipic acid, azelaic acid, sebacic acid, dodecanedioic acids and cyclohexanedicarboxylic acids. More preferred is terephthalic acid as dicarboxylic acid, i.e. more preferred polyesters A) are polyalkylene terephthalates.Among the aliphatic dihydroxy compounds, preference is given to diols having from 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 and mixtures of these.Particularly preferred polyesters A1 that may be mentioned are polyalkylene terephthalates that derive from alkanediols having from 2 to 6 carbon atoms. Among these, preference is in particular given to polyethylene terephthalate, polypropylene terephthalate and polybutylene terephthalate and mixtures of these. Preference is further given to PET and / or PBT which comprise up to 1 % by weight, preferably up to 0.75% by weight, of 1 ,6-hexanediol and / or 2-methyl-1 ,5-pen- tanediol as further monomer units.The intrinsic viscosity of the polyesters A1 is generally in the range from 50 to 220, preferably from 80 to 160 (measured in 0.5% by weight solution in a phenol / o-dichlorobenzene mixture (ratio by weight 1 :1 at 25°C) in accordance with ISO 1628).Preference is in particular given to polyesters having carboxy end group content of up to 100 meq / kg of polyester, preferably up to 50 meq / kg and in particular up to 40 meq / kg. These polyesters can by way of example be produced by the process of DE-A 44 01 055. Carboxy end group content is usually determined by titration methods (e.g. potentiometry).Another group to be mentioned is that of fully aromatic polyesters deriving from aromatic dicarboxylic acids and aromatic dihydroxy compounds.Suitable aromatic dicarboxylic acids are the compounds previously described for the polyesters based on aromatic dicarboxylic acids and aliphatic dihydroxy compounds. Preference is given to use of mixtures of from 5 to 100 mol % of isophthalic acid and from 0 to 95 mol % of terephthalic acid, in particular to mixtures of about 80% to 50% of terephthalic acid with from 20% to 50% of isophthalic acid.The aromatic dihydroxy compounds preferably have the general formulain which Z is an alkylene or cycloalkylene group having up to 8 carbon atoms, an arylene group having up to 12 carbon atoms, a carbonyl group, a sulfonyl group, an oxygen atom or sulfur atom, or a chemical bond, and in which m has the value from 0 to 2. The phenylene groups in the compounds may also have substitution by Ci-Ce-alkyl groups or alkoxy groups, and fluorine, chlorine, or bromine.Examples of parent compounds for these compounds are dihydroxybiphenyl, di(hydroxyphenyl)alkane, di(hydroxyphenyl)cycloalkane, di(hydroxyphenyl) sulfide, di(hydroxyphenyl) ether, di(hydroxyphenyl) ketone, di(hydroxyphenyl) sulfoxide, a, a'-di(hydroxyphenyl)dialkyl benzene, di(hydroxyphenyl)sulfone, di(hydroxybenzoyl)benzene, resorcinol, and hydroquinone, and also the ring-alkylated and ring-halogenated derivatives of these.Among these, preference is given to• 4,4'-dihydroxybiphenyl,• 2,4-di(4'-hydroxyphenyl)-2-methylbutane,• a,a'-di(4-hydroxyphenyl)-p-diisopropylbenzene,• 2,2-di(3'-methyl-4'-hydroxyphenyl)propane, and• 2,2-di(3'-chloro-4'-hydroxyphenyl)propane, and in particular to• 2,2-di(4'-hydroxyphenyl)propane,• 2,2-di(3',5-dichlorodihydroxyphenyl)propane,• 1 ,1 -di(4'-hydroxyphenyl)cyclohexane,• 3,4'-dihydroxybenzophenone,• 4,4'-dihydroxydiphenyl sulfone and• 2,2-di(3',5'-dimethyl-4'-hydroxyphenyl)propane or a mixture of these.It is, of course, also possible to use mixtures of polyesters based on aromatic dicarboxylic acids and aliphatic dihydroxy compounds and fully aromatic polyesters. These generally comprise from 20 to 98% by weight of the polyalkylene terephthalate and from 2 to 80% by weight of the fully aromatic polyester.It is, of course, also possible to use polyester block copolymers, such as copolyetheresters.Products of this type are known per se and are described in the literature, e.g. in U.S. Pat. No. 3,651 ,014. Corresponding products are also available commercially, e.g. Hytrel® (DuPont).Halogen free polycarbonates are also polyesters in the invention. Examples of suitable halogen- free polycarbonates are those based on biphenols of the general formulain which Q is a single bond, a Ci-Cs-alkylene group, a C2-C3-alkylidene group, a Cs-Ce-cycloal- kylidene group, a C6-Ci2-arylene group, or else — O — , — S — or — SO2 — , and m is an integer from 0 to 2.The phenylene radicals of the biphenols may also have substituents, such as Ci-Ce-alkyl or Ci- Ce-alkoxy.Examples of preferred biphenols of the formula are hydroquinone, resorcinol, 4,4'-dihydroxybi- phenyl, 2,2-bis(4-hydroxyphenyl)propane, 2,4-bis(4-hydroxyphenyl)-2-methylbutane and 1 ,1- bis(4-hydroxyphenyl)cyclohexane. Particular preference is given to 2,2-bis(4-hydroxyphe- nyl)propane and 1 ,1-bis(4-hydroxyphenyl)cyclohexane, and also to 1 ,1-bis(4-hydroxyphenyl)- 3,3,5-trimethylcyclohexane.Either homopolycarbonates or copolycarbonates are also suitable as component A1 , and preference is given to the copolycarbonates of bisphenol A, as well as to bisphenol A homopolymer.Suitable polycarbonates may be branched in a known manner, specifically and preferably by incorporating from 0.05 to 2.0 mol%, based on the total of the biphenols used, of at least trifunctional compounds, for example those having three or more phenolic OH groups.Polycarbonates which have proven particularly suitable have relative viscosities r|rein of from 1 .10 to 1 .50, in particular from 1 .25 to 1 .40. This corresponds to average molar masses Mw(weight average) of from 10000 to 200000 g / mol, preferably from 20000 to 80000 g / mol. The biphenols of the general formula are known per se or can be produced by known processes.The polycarbonates may, for example, be produced by reacting the biphenols with phosgene in the interfacial process, or with phosgene in the homogeneous-phase process (known as the pyridine process), and in each case the desired molecular weight is achieved in a known manner by using an appropriate amount of known chain terminators. (In relation to polydiorganosi- loxane-containing polycarbonates see, for example, DE-A 33 34 782.)Examples of suitable chain terminators are phenol, p-tert-butylphenol, or else long-chain alkylphenols, such as 4-(1 ,3-tetramethylbutyl)phenol, as in DE-A 28 42 005, or monoalkylphenols, or dialkylphenols with a total of from 8 to 20 carbon atoms in the alkyl substituents, as in DE-A 35 06 472, such as p-nonylphenyl, 3,5-di-tert-butylphenol, p-tert-octylphenol, p-dodecylphenol, 2- (3,5-dimethylheptyl)phenol and 4-(3,5-dimethylheptyl)phenol.For the purposes of the present invention, the expression halogen-free polycarbonates means polycarbonates made from halogen-free biphenols, from halogen-free chain terminators and optionally from halogen-free branching agents, where the content of subordinate amounts at the ppm level of hydrolysable chlorine, resulting, for example, from the production of the polycarbonates with phosgene in the interfacial process, is not regarded as meriting the term halogencontaining for the purposes of the invention. Polycarbonates of this type with contents of hydrolysable chlorine at the ppm level are halogen-free polycarbonates for the purposes of the present invention.Other suitable components A1 that may be mentioned are amorphous polyester carbonates, where phosgene has been replaced during a production process by aromatic dicarboxylic acid units such as isophthalic acid and / or terephthalic acid units. Reference may be made at this point to EP-A 711 810 for further details.Other suitable copolycarbonates having cycloalkyl moieties as monomer units are described in EP-A 365 916.Bisphenol A can moreover be replaced by bisphenol TMC. Polycarbonates of this type are obtainable commercially from Covestro (APEC HT®).It is moreover advantageous to use fully or in part recyclates as component A1 . The recyclate may be mixed with freshly produced polymer(s) of the same type or a different type.For example, polyamide or PET recyclates (also known as scrap PET) may be used, optionally in a mixture with freshly prepared polymer.The term recyclates generally means:1 ) Those known as post-industrial recylates: these are the production wastes during polycondensation or during processing, e.g. sprues from injection molding, start-up material from injection molding or extrusion, or edge trims from extruded sheets or films.2) Post-consumer recyclates: these are plastics items which are collected and treated after utilization by the end consumer. Blow-molded PET bottles for mineral water, soft drinks and juices are easily the predominant items in terms of quantity.Both types of recyclate may be used either as regrind or in the form of pellets. In the latter case, the crude recycled materials are isolated and purified and then melted and pelletized using an extruder. This usually facilitates handling and free-flowing properties, and metering for further steps in processing.The edge length should not be more than 10 mm and should preferably be less than 8 mm.Because polyesters undergo hydrolytic cleavage during processing (due to traces of moisture) it is advisable to predry the recycled material. Residual moisture content after drying is preferably <0.2%, in particular <0.05%.Also, polymers, especially polyamides and / or polyesters obtained from chemically recycled monomers or oligomers can be employed, e.g. polyamide 66 obtained from chemically recycled hexamethylenediamin und adipic acid or PET obtained from terephthalic acid and ethylene glycol.Component A2The composition A comprises 0.01 to 5 wt%, preferably 0.05 to 2.5 wt% of component A2, where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.Component A2 is one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2.Preferred metals are V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Cd, La, Ce, W, Pt, Au, Pb, Al and / or Sn, more preferably Cu, Zn, Sn, La, Ce and / or Ag, in particular Cu, Zn, Sn, and / or La.Preferably, the oxidation state of the metal is 1+, 2+, 3+, or 4+, preferably 1+, 2+, or 3+, more preferably, 1+or 2+, more preferably 1+.More preferred are ions of the metals mentioned above, most preferably Cu+, Cu2+, Zn2+, Sn2+, Sn4+, La3+, Ce4+, and / or Ag+, further most preferably Cu+and / or Cu2+, even further most preferably Cu+.Component A2 is preferably present in form of a salt, a complex compound and / or a complex salt, more preferably in form of a salt and / or a complex salt.Suitable salts, a complex compounds and complex salts are known in the art.Suitable salts and ligands are for example halides like iodides, bromides or chlorides, acetates, oxides, carbonates, hydroxides, mono- or polydentate ligands, preferably containing one or more nitrogen and / or phosphor atoms like triphenylphosphine. For example, the nitrogen atom can be in the form of an amide, amine, aromatic nitrogen base and the like.Such useful complexes include those formed monodentate ligands such as ammonia, mono-, di-, and tri- alkyl amines, pyridine, caprolactam, pyrrolidine, isocyanides, cyanides and the like. Suitable polydentate ligands are for example ethylene diamine, nitrilotriacetic acid, ethylene diamine triacetic acid, ethylene diamine tretraacetic acid, 2,2'dipyridyl and similar amines, phthalocyanine, 8-hydroxyquinoline and the like.Preferably, component A2 comprises, preferably consists of an oxide, halide, preferably chloride, bromide, iodide; stannate, carbonate, sulfate, hydroxide, triphenylphosphine, ammonia, mono-, di-, and tri- alkyl amines, pyridine, caprolactam, pyrrolidine, isocyanides, cyanides, ethylene diamine, nitrilotriacetic acid, ethylene diamine triacetic acid, ethylene diamine tretraacetic acid, and / or substituted or unsubstituted dipyridyl; preferably 2,2'dipyridyl; phthalocyanine, and / or 8-hydroxyquinoline, preferably of one or more metal(s) as mentioned above.Most preferred components A2 are Cu+and / or Cu2+comprising components like cuprous chloride, cupric chloride, cupric acetate, cuprous acetate, cuprous oxide, cupric oxide, cuprous iodide, cupric iodide, cuprous bromide, cupric bromide, cuprous carbonate, cupric carbonate, cuprous hydroxide, cupric hydroxide, complexes of cupric cation or cuprous cation and ligandscontaining one or more nitrogen and / or phosphorous atoms like triphenylphosphine complex salts of Cu+and / or Cu2+.Useful complexes include those formed by cupric and cuprous cations and monodentate ligands such as ammonia, mono-, di-, and tri- alkyl amines, pyridine, caprolactam, pyrrolidine, isocyanides, cyanides and the like. Useful complexes also include those formed by cupric and cuprous cations and polydentate ligands, as for example, ethylene diamine, nitrilotriacetic acid, ethylene diamine triacetic acid, ethylene diamine tretraacetic acid, 2,2'dipyridyl and similar amines, phthalocyanine, 8-hydroxyquinoline and the like.More preferably, component A2, preferably consists of, copper(l)halide; preferably copper(l)io- dide; copper(l)oxide, zinc(ll)oxide, zinc(ll)stannate, ethylenediaminetetraacetic acid copper(ll) disodium salt, iodobis(triphenylphosphino)copper(l), and mixtures thereof, preferably cop- per(l)iodide, copper(l)oxide, more preferably copper(l)iodide.As mentioned above, it was found by the inventors that especially plastic-silicone composites comprising flame retardants comprising phosphorous release organic compounds, especially acidic phosphorous species, which have a significant negative effect on the heat ageing properties of the silicon rubber and therefore on the compression sets of the plastic-silicone composites. Preferably, the one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements is a scavenger for one or more phosphorous containing compound(s).Component A3The composition A comprises 3 to 30 wt%, preferably 10 to 25 wt% of component A3, where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.Component A3 is one or more flame retardant(s) comprising phosphorous.Flame retardants containing phosphorous are generally known in the art.The composition A can comprise at least one metal phosphinate or phosphinic acid salt described hereinbelow as flame retardant.Examples of preferred flame retardants of component A3 are metal phosphinates derived from hypophosphorous acid. A metal salt of hypophosphorous acid with Mg, Ca, Al or Zn as the metal may be employed for example. Particular preference is given here to aluminum hypophosphite.Also suitable are phosphinic acid salts of formula (I) or / and diphosphinic acid salts of formula (II) or polymers thereofin whichR1, R2are identical or different and represent hydrogen, Ci-Ce-alkyl, linear or branched, and / or aryl;R3represents Ci-C -alkylene, linear or branched, Ce-C -arylene, -alkylarylene or -aryl- alkylene;M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and / or a protonated nitrogen base; m = 1 to 4; n = 1 to 4; x = 1 to 4, preferably m = 3, x = 3.Preferably, R1, R2are identical or different and represent hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, tert.-butyl, n-pentyl, n-hexyl and / or phenyl. Examples for mixed salts are mixtures with R1, R2representing a mixture of ethyl, n-butyl and / or n-hexyl.Preferably, R3represents methylene, ethylene, n-propylene, isopropylene, n-butylene, tert-butyl- ene, n-pentylene, n-octylene or n-dodecylene, phenylene or naphthylene; methylphenylene, ethylphenylene, tert-butylphenylene, methylnaphthylene, ethylnaphthylene or tert-butylnaph- thylene; phenylmethylene, phenylethylene, phenylpropylene or phenylbutylene.Particularly preferably, R1, R2are hydrogen, methyl or ethyl, and M is Al, particular preference is given to Al hypophosphite.Production of the phosphinates is preferably effected by precipitation of the corresponding metal salts from aqueous solutions. However, the phosphinates may also be precipitated in the presence of a suitable inorganic metal oxide or sulfide as support material (white pigments, for example TiC>2, SnC>2, ZnO, ZnS, SiC>2). This accordingly affords surface-modified pigments which can be employed as laser-markable flame retardants for thermoplastic polyesters.It is preferable when metal salts of substituted phosphinic acids are employed in which compared to hypophosphorous acid one or two hydrogen atoms have been replaced by phenyl, methyl, ethyl, propyl, isobutyl, isooctyl or radicals R'-CH-OH have been replaced by R’-hydrogen, phenyl, tolyl. The metal is preferably Mg, Ca, Al, Zn, Ti, Fe. Aluminum diethylphosphinate (DEPAL) is particularly preferred.For a description of phosphinic acid salts or diphosphinic acid salts reference may be made to DE-A 199 60 671 and also to DE-A 44 30 932 and DE-A 199 33 901 .It is also possible to employ phosphorus, for example red phosphorus, as component A3.Generally, elemental red phosphorus can be employed as component A3 in the composition A.In particular in combination with glassfiber-reinforced molding compositions, it can be used in untreated form. However, particularly suitable preparations are those in which the phosphorus has been surface-coated with low-molecular-weight liquid substances, such as silicone oil, paraffin oil, or esters of phthalic acid (in particular dioctyl phthalate, see EP 176 836) or adipic acid, or with polymeric or oligomeric compounds, e.g. with phenolic resins or amino plastics, or else with polyurethanes (see EP-A 384 232, DE-A 19648 503).Concentrates (masterbatches) of red phosphorus, e.g. in a polyamide or elastomer, are moreover suitable as component A3. In particular, polyolefin homo- and copolymers are suitable as concentrate polymers.Further, the composition A can comprise at least one phosphazene of general formula (IX) or (X) as flame retardant.“Phosphazenes” is to be understood as meaning cyclic phosphazenes of general formula (IX)in which m is an integer from 3 to 25 and R4and R4’ are identical or different and represent Ci- C2o-alkyl-, Ce-Cso-aryl-, Ce-Cso-arylalkyl- or Ce-Cso-alkyl-substituted aryl or linear phosphazenes of general formula (X)in which n represents 3 to 1000 and X represents -N = P(OPh)s or -N = P(O)OPh and Y represents -P(OPh)4 or -P(O)(OPh)2.The production of such phosphazenes is described in EP-A 0 945 478.Particular preference is given to cyclic phenoxyphosphazenes of formula P3N3C36 of formula (XI)or linear phenoxyphosphazenes according to formula (XII)(XII).The phenyl radicals may optionally be substituted. Phosphazenes in the context of the present application are described in Mark, J.E., Allcock, H. R., West, R., “Inorganic Polymers", Prentice Hall, 1992, pages 61 to 141.Preferably employed as component A3 are cyclic phenoxyphosphazenes having at least three phenoxyphosphazene units. Corresponding phenoxyphosphazenes are described for example in US 2010 / 0261818 in paragraphs

[0051] to

[0053] , Reference may in particular be made to formula (I) therein. Corresponding cyclic phenoxyphosphazenes are furthermore described in EP-A-2 100 919, in particular in paragraphs

[0034] to

[0038] therein. Production may be effected as described in EP-A-2 100 919 in paragraph

[0041] , In one embodiment of the invention the phenyl groups in the cyclic phenoxyphosphazene may be substituted by Ci-4-alkyl radicals. It is preferable when pure phenyl radicals are concerned.For further description of the cyclic phosphazenes reference may be made to Rompp Chemie Lexikon, 9thed., keyword “phosphazenes". Production is effected for example via cyclophosphazene which is obtainable from PCI5 and NH4CI, wherein the chlorine groups in the cyclophosphazene have been replaced by phenoxy groups by reaction with phenol.The cyclic phenoxy phosphazene compound may for example be produced as described in Allcock, H. R., “Phosphorus-Nitrogen Compounds” (Academic Press, 1972), and in Mark, J. E., Allcock, H. R., West, R., “Inorganic Polymers” (Prentice Hall, 1992).Component A3 is preferably a mixture of cyclic phenoxyphosphazenes having three and four phenoxy phosphazene units. The weight ratio of rings comprising three phenoxyphosphazene units to rings comprising four phenoxyphosphazene units is preferably about 80:20. Larger rings of the phenoxyphosphazene units may likewise be present but in smaller amounts. Suitable cyclic phenoxyphosphazenes are obtainable from Fushimi Pharmaceutical Co., Ltd., under the name Rabitle® FP-100. This is a matt-white / yellowish solid having a melting point of 110°C, a phosphorus content of 13.4% and a nitrogen content of 6.0%. The proportion of rings comprising three phenoxyphosphazene units is at least 80.0 wt%.Further, the composition A can comprise at least one aliphatic or aromatic ester of phosphoric acid or polyphosphoric acid as flame retardant.Especially solid, non-migrating phosphate esters having a melting point between 70°C and 150°C are preferred. This has the result that the products are easy to meter and exhibit markedly less migration in the molding material. Particularly preferred examples are the commercially available phosphate esters PX-200® (CAS: 139189-30-3) from Daihachi, or Sol-DP®from ICL- IP. Further phosphate esters with appropriate substitution of the phenyl groups are conceivable when this allows the preferred melting range to be achieved. The general structural formula, depending on the substitution pattern in the ortho position or the para position on the aromatic ring, is as follows:whereinR1= H, methyl, ethyl or isopropyl, but preferably H. n = between 0 and 7, but preferably 0.R2'6= H, methyl, ethyl or isopropyl, but preferably methyl. R6is preferably identical to R4and R5. m = may be but need not be identical and is between 1 , 2, 3, 4 and 5, but preferably 2.R = may be H, methyl, ethyl or cyclopropyl, but preferably methyl and H.PX-200 is given as a concrete example:It is particularly preferable when at least one aromatic ester of polyphosphoric acid is employed. Such aromatic polyphosphates are obtainable for example from Daihachi Chemical under the name PX-200.Preferably, component A3 in the composition A comprises, preferably consists of red phosphorus, metal phosphinates and / or phosphinic acid salts.Component A4The composition A comprises 0 to 50 wt%, preferably 10 to 35 wt% of component A4, where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.If component A4 is present, the maximum amount of component A1 is decreased by the minimum amount of component A4, so that the total amount of components A1 to A5 is still 100 wt%.Component A4 is optionally present and is one or more reinforcement(s).Preferably, the reinforcement(s) are fibrous and / or particulate fillers. It is possible to use mixtures of two or more different fibrous and / or particulate fillers.Component A4 is more preferably selected from the group consisting of carbon fibres, glass beads, e.g. solid or hollow glass beads, glass fibres, ground glass, amorphous quartz glass, aluminum borosilicate glass having an alkali content of about 1 % (E glass), amorphous silica, quartz flour, alkaline earth metal silicate, especially calcium silicate, calcium metasilicate, magnesium carbonate, kaolin, calcined kaolin, chalk, kyanite, powdered or milled quartz, mica, phlogopite, barium sulfate, feldspar, wollastonite, montmorillonite, boehmite, bentonite, vermiculite, hectorite, laponite®, pseudoboehmite of formula AIO(OH), magnesium carbonate, talc, ara-mid fibres, potassium titanate fibres, barium carbonate, alkaline earth metal oxide, metallic fibres, ceramic fibres, titanium dioxide, aluminum oxide, plaster, zirconium oxide, antimony oxide, clay, silica-alumina, sericite, diatomite, silica stone, carbon black, glassy hollow microspheres (Shirasu® balloon), red oxide, zinc oxide, and mixtures thereof.Other fillers which may be mentioned are lamellar or acicular fillers, the amounts of these preferably being from 0.1 to 10% - if present. Materials preferred for this purpose are boehmite, bentonite, montmorillonite, vermiculite, hectorite, and laponite®. The lamellar nanofillers are organically modified by prior art methods, to give them good compatibility with the organic binder. Addition of the lamellar or acicular fillers to the inventive thermoplastic moulding compositions gives a further increase in mechanical strength.For the purposes of the invention, acicular mineral fillers are mineral fillers with strongly developed acicular character. An example is acicular wollastonite. The mineral preferably has an L / D (length to diameter) ratio of from 8:1 to 35:1 , preferably from 8:1 to 11 :1. The mineral filler may optionally have been pretreated with the abovementioned silane compounds, but the pretreatment is not essential.Preferred fibrous or particulate fillers A4 are glass fibres. The glass fibres are generally chopped fibres, also called short fibres, having a length in the range from 0.1 to 1 mm, long fibres having a length in the range from 1 to 50 mm, and continuous fibres having a length l>50 mm. Continuous fibres are used in the form of rovings or fabric in fibre-reinforced plastics.Also available are ground glass fibres, the length of which after grinding is typically in the range from 70 to 200 pm.Particular preference being given to glass fibres in the form of rovings or in the forms of chopped glass as described above.More preferred glass fibres to be used as component A4 are chopped long glass fibres having an average starting length to be determined by laser diffraction-particle size analysis (laser granulometry / laser diffractometry) according to ISO 13320:2009 in the range from 1 to 50 mm, more preferably in the range from 1 to 10 mm, most preferably in the range from 2 to 7 mm. Most preferred glass fibres for use as component A4 have an average fibre diameter to be determined by laser diffractometry according to ISO 13320:2009 in the range from 7 to 18 pm, more preferably in the range from 9 to 15 pm.In a preferred embodiment, the glass fibres for use with preference as component A4 are modified with a suitable size system or an adhesion promoter / adhesion promoter system. Preference is given to using a size system or an adhesion promoter based on silane, to improve compatibility with the thermoplastic.Suitable silane compounds have the general formula (II):(X-(CH2)n)k-Si-(O-CmH2m+1 )4-kCH2— CH CH2— CH— CH2— O —O OX is -NH2, HO-, carboxyl, or n is an integer from 2 to 10, preferably 3 to 4, m is an integer number from 1 to 5, preferably 1 to 2, and k is an integer from 1 to 3, preferably 1 .Preferred silane compounds are aminopropyltrimethoxysilane, aminobutyltrimethoxysilane, aminopropyltriethoxysilane and aminobutyltriethoxysilane, and also the corresponding silanes which comprise a glycidyl group or a carboxyl group as substituent X.For the modification of the glass fibres for use with preference as component A4, the adhesion promoter, preferably the silane compounds of formula (II), is used preferably in amounts of 0.01 % to 2% by weight, more preferably in amounts of 0.025% to 1 .5% by weight and most preferably in amounts of 0.05% to 1 % by weight, based in each case on 100% by weight of component E).The glass fibres to be used with preference as component A4, as a result of the processing to give the thermoplastic moulding composition, may be shorter in the composition than the glass fibres originally used. Thus, the arithmetic average of the glass fibre length after processing, to be determined by high-resolution X-ray computed tomography, is frequently only in the range from 150 pm to 300 pm.Barium Oxide (0-0.1Particular preference being given to glass fibres in the form of E glass. These can be used as rovings or in the commercially available forms of chopped glass, whereby suitable rovings and chopped glass fibres are described above. Said E glass fibres are modified with a suitable size system or an adhesion promoter / adhesion promoter system. Preference is given to using a size system or an adhesion promoter based on silane, to improve compatibility with the thermoplastic. Suitable silane compounds are mentioned above.It is further possible to use as component A4 non-fibrous and non-foamed milled glass having a particle size distribution to be determined by laser diffractometry according to ISO 13320:2009 having a dgo in the range from 5 to 250 pm, preferably in the range from 10 to 150 pm, more preferably in the range from 15 to 80 pm, most preferably in the range from 16 to 25 pm. With regard to the dgo values, their determination and their significance, reference is made to Chemie Ingenieur Technik (72) pp. 273-276, 3 / 2000, Wiley-VCH Verlags GmbH, Weinheim, 2000, according to which the dgo value is that particle size below which 90% of the amount of particles lie (volume distribution).It is preferable in accordance with the invention when the non-fibrous and non-foamed milled glass has a particulate, non-cylindrical shape and has a length to thickness ratio to be determined by laser diffractometry according to ISO 13320:2009 of less than 5, preferably less than 3, more preferably less than 2. It will be appreciated that the value of zero is impossible.The non-foamed and non-fibrous milled glass is additionally characterized in that it generally does not have the glass geometry typical of fibrous glass with a cylindrical or oval cross section having a length to diameter ratio (L / D ratio) to be determined by laser diffractometry according to ISO 13320:2009 greater than 5.The non-foamed and non-fibrous milled glass is preferably obtained by grinding glass with a mill, preferably a ball mill, and more preferably with subsequent sifting or sieving. Preferred starting materials for the milling of the non-fibrous and non-foamed milled glass for use as component E) in one embodiment also include glass wastes as generated as unwanted by product and / or as off-spec primary product (called offspec material) especially in the production of glass products. These especially include waste glass, recycled glass and broken glass as can be ob-tained especially in the production of window or bottle glass, and in the production of glass containing fillers and reinforcers, especially in the form of what are called melt cakes. The glass may be coloured, but preference is given to non-coloured glass as the starting material for use as component A4.Most preferably, the one or more reinforcement(s) comprise(s), preferably consist(s) of, fibres, preferably glass fibres. Suitable and preferred fibres are mentioned above.Component A5The composition A comprises 0 to 50 wt%, preferably 0.3 to 20 wt% of component A5, where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.Component A5 is optionally present. If component A5 is present, the maximum amount of component A1 is decreased by the minimum amount of component A4, so that the total amount of components A1 to A5 is still 100 wt%.Component A5 is optionally present and is one or more additive(s).The thermoplastic molding compositions of the invention can comprise, as component A5, for example conventional processing aids, such as stabilizers, oxidation retarders, agents to counteract decomposition by heat and decomposition by ultraviolet light, lubricants and mold-release agents, colorants, such as dyes and pigments, nucleating agents, plasticizers, flame retardants in addition to component A3, synergist(s) for flame retardant(s) or mixtures thereof.The molding compositions of the invention can optionally for example comprise from 0.05 to 3% by weight, preferably from 0.1 to 1.5% by weight, and in particular from 0.1 to 1 % by weight, of a lubricant.Preference is given to the salts of Al (aluminum), of Zn, of alkali metals, or of alkaline earth metals, or esters or amides of fatty acids having from 10 to 44 carbon atoms, preferably having from 12 to 44 carbon atoms.The metal ions are preferably alkaline earth, Zn metal and Al, particular preference being given to Ca or Mg or Al or Zn.Preferred metal salts are Ca stearate and Ca montanate, and also Al stearate.It is also possible to use a mixture of various salts, in any desired mixing ratio.The carboxylic acids can be monobasic or dibasic. Examples which may be mentioned are pelargonic acid, palmitic acid, lauric acid, margaric acid, dodecanedioic acid, behenic acid, and particularly preferably stearic acid, capric acid, and also montanic acid (a mixture of fatty acids having from 30 to 40 carbon atoms).The aliphatic amines can be mono- to tribasic. Examples of these are stearylamine, ethylenediamine, propylenediamine, hexamethylenediamine, di(6-aminohexyl)amine, particular preference being given to ethylenediamine and hexamethylenediamine. Preferred esters or amides are correspondingly glycerol distearate, glycerol tristearate, ethylenediamine distearate, glycerol monopalmitate, glycerol trilaurate, glycerol monobehenate, and pentaerythritol tetrastearate.It is also possible to use a mixture of various esters or amides, or of esters with amides in combination, in any desired mixing ratio.Examples of oxidation retarders and heat stabilizers are sterically hindered phenols and / or phosphites and amines (e.g. TAD), hydroquinones, aromatic secondary amines, such as diphenylamines, various substituted members of these groups, and mixtures of these, optionally in concentrations of up to 1 % by weight, based on the weight of the composition A.Suitable sterically hindered phenols are in principle all of the compounds which have a phenolic structure, and which have at least one bulky group on the phenolic ring.It is preferable to use, for example, compounds of the formulawhere:R1and R2are an alkyl group, a substituted alkyl group, or a substituted triazole group, and where the radicals R1and R2may be identical or different, and R3is an alkyl group, a substituted alkyl group, an alkoxy group, or a substituted amino group.Antioxidants of the abovementioned type are described by way of example in DE-A 27 02 661 (US-A 4 360 617).Another group of preferred sterically hindered phenols is provided by those derived from substituted benzenecarboxylic acids, in particular from substituted benzenepropionic acids.Particularly preferred compounds from this class are compounds of the formulawhere R4, R5, R7, and R8, independently of one another, are Ci-Cs-alkyl groups which themselves may have substitution (at least one of these being a bulky group), and R6is a divalent aliphatic radical which has from 1 to 10 carbon atoms and whose main chain may also have C- O bonds.Preferred compounds corresponding to these formulae are(Irganox® 259 from BASF SE)All of the following should be mentioned as examples of sterically hindered phenols:2,2’-methylenebis(4-methyl-6-tert-butylphenol), 1 ,6-hexanediol bis[3-(3,5-di-tert-butyl-4-hydroxy- phenyl)propionate], pentaerythrityl tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], dis- tearyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate, 2,6,7-trioxa-1 -phosphabicyclo[2.2.2]oct-4- ylmethyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, 3,5-di-tert-butyl-4-hydroxyphenyl-3,5-distea- rylthiotriazylamine, 2-(2’-hydroxy-3’-hydroxy-3’,5’-di-tert-butylphenyl)-5-chlorobenzotriazole, 2,6- di-tert-butyl-4-hydroxymethylphenol, 1 ,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)- benzene, 4,4’-methylenebis(2,6-di-tert-butylphenol), 3,5-di-tert-butyl-4-hydroxybenzyldimethyla- mine.Compounds which have proven particularly effective and which are therefore used with preference are 2,2’-methylenebis(4-methyl-6-tert-butylphenol), 1 ,6-hexanediol bis(3,5-di-tert-butyl-4- hydroxyphenyl)propionate (Irganox® 259), pentaerythrityl tetrakis[3-(3,5-di-tert-butyl-4-hydroxy- phenyl)propionate], and also N,N’-hexamethylenebis-3,5-di-tert-butyl-4-hydroxyhydrocinnamide (Irganox® 1098), and the product Irganox® 245 described above from BASF SE, which has particularly good suitability.The amount comprised of the antioxidants, which can optionally be used individually or as a mixture, is from 0.05 up to 3% by weight, preferably from 0.1 to 1.5% by weight, in particular from 0.1 to 1 % by weight, based on the total weight of the composition A.In some instances, sterically hindered phenols having not more than one sterically hindered group in ortho-position with respect to the phenolic hydroxy group have proven particularly advantageous; in particular when assessing colorfastness on storage in diffuse light over prolonged periods.The compositions of the invention can optionally comprise from 0.05 to 5% by weight, preferably from 0.1 to 2% by weight, and in particular from 0.25 to 1 .5% by weight, based on the total weight of the composition A, of a nigrosine.Nigrosines are generally a group of black or gray phenazine dyes (azine dyes) related to the in- dulines and taking various forms (water-soluble, oil-soluble, spirit-soluble), used in wool dyeing and wool printing, in black dyeing of silks, and in the coloring of leather, of shoe creams, of varnishes, of plastics, of stoving lacquers, of inks, and the like, and also as microscopy dyes.Nigrosines are obtained industrially via heating of nitrobenzene, aniline, and aniline hydrochloride with metallic iron and FeCh (the name being derived from the Latin niger = black).Nigrosine can be used in the form of free base or else in the form of salt (e.g. hydrochloride).Further details concerning nigrosines can be found by way of example in the electronic encyclopedia Rompp Online, Version 2.8, Thieme-Verlag Stuttgart, 2006, keyword "Nigrosine".Examples of other conventional additives are optionally amounts of up to 25% by weight, preferably up to 20% by weight, of elastomeric polymers (also often termed impact modifiers, elastomers, or rubbers).These are very generally copolymers preferably composed of at least two of the following monomers: ethylene, propylene, butadiene, isobutene, isoprene, chloroprene, vinyl acetate, styrene, acrylonitrile and acrylates and / or methacrylates having from 1 to 18 carbon atoms in the alcohol component.Polymers of this type are described, for example, in Houben-Weyl, Methoden der organischen Chemie, vol. 14 / 1 (Georg-Thieme-Verlag, Stuttgart, Germany, 1961 ), pages 392 to 406, and in the monograph by C. B. Bucknall, "Toughened Plastics" (Applied Science Publishers, London, UK, 1977).Some preferred types of such elastomers are described below.Preferred types of such elastomers are those known as ethylene-propylene (EPM) and ethyle- ne-propylene-diene (EPDM) rubbers.EPM rubbers generally have practically no residual double bonds, whereas EPDM rubbers may have from 1 to 20 double bonds per 100 carbon atoms.Examples which may be mentioned of diene monomers for EPDM rubbers are conjugated dienes, such as isoprene and butadiene, non-conjugated dienes having from 5 to 25 carbon atoms, such as 1 ,4-pentadiene, 1 ,4-hexadiene, 1 ,5-hexadiene, 2,5-dimethyl-1 ,5-hexadiene and 1 ,4-octadiene, cyclic dienes, such as cyclopentadiene, cyclohexadienes, cyclooctadienes and dicyclopentadiene, and also alkenylnorbornenes, such as 5-ethylidene-2-norbornene, 5-butyli- dene-2-norbornene, 2-methallyl-5-norbornene and 2-isopropenyl-5-norbornene, and tricycledie- nes, such as 3-methyltricyclo[5.2.1.02’6]-3,8-decadiene, and mixtures of these. Preference is given to 1 ,5-hexadiene, 5-ethylidenenorbornene and dicyclopentadiene. The diene content of the EPDM rubbers is preferably from 0.5 to 50% by weight, in particular from 1 to 8% by weight, based on the total weight of the rubber.EPM rubbers and EPDM rubbers may preferably also have been grafted with reactive carboxylic acids or with derivatives of these. Examples of these are acrylic acid, methacrylic acid and derivatives thereof, e.g. glycidyl (meth)acrylate, and also maleic anhydride.Copolymers of ethylene with acrylic acid and / or methacrylic acid and / or with the esters of these acids are another group of preferred rubbers. The rubbers may also comprise dicarboxylic acids, such as maleic acid and fumaric acid, or derivatives of these acids, e.g. esters and anhydrides, and / or monomers comprising epoxy groups. These dicarboxylic acid derivatives or monomers comprising epoxy groups are preferably incorporated into the rubber by adding to the monomer mixture monomers comprising dicarboxylic acid groups and / or epoxy groups and having the general formulae I or II or III or IVR1C(COOR2)=C(COOR3)R4(I)where R1to R9are hydrogen or alkyl groups having from 1 to 6 carbon atoms, and m is a whole number from 0 to 20, g is a whole number from 0 to 10 and p is a whole number from 0 to 5.The radicals R1to R9are preferably hydrogen, where m is 0 or 1 and g is 1. The corresponding compounds are maleic acid, fumaric acid, maleic anhydride, allyl glycidyl ether and vinyl glycidyl ether.Preferred compounds of the formulae I, II and IV are maleic acid, maleic anhydride and (meth)acrylates comprising epoxy groups, such as glycidyl acrylate and glycidyl methacrylate, and the esters with tertiary alcohols, such as tert-butyl acrylate. Although the latter have no free carboxy groups, their behavior approximates to that of the free acids and they are therefore termed monomers with latent carboxy groups.The copolymers are advantageously composed of from 50 to 98% by weight of ethylene, from 0.1 to 20% by weight of monomers comprising epoxy groups and / or methacrylic acid and / or monomers comprising anhydride groups, the remaining amount being (meth)acrylates.Particular preference is given to copolymers composed of- from 50 to 98% by weight, in particular from 55 to 95% by weight, of ethylene,- from 0.1 to 40% by weight, in particular from 0.3 to 20% by weight, of glycidyl acrylate and / or glycidyl methacrylate, (meth)acrylic acid and / or maleic anhydride, and- from 1 to 45% by weight, in particular from 5 to 40% by weight, of n-butyl acrylate and / or 2- ethylhexyl acrylate.Other preferred (meth)acrylates are the methyl, ethyl, propyl, isobutyl and tert-butyl esters.Comonomers which may be used alongside these are vinyl esters and vinyl ethers.The ethylene copolymers described above may be prepared by processes known per se, preferably by random copolymerization at high pressure and elevated temperature. Appropriate processes are well-known.Other preferred elastomers are emulsion polymers whose preparation is described, for example, by Blackley in the monograph "Emulsion Polymerization". The emulsifiers and catalysts which can be used are known per se.In principle it is possible to use homogeneously structured elastomers or else those with a shell structure. The shell-type structure is determined by the sequence of addition of the individual monomers. The morphology of the polymers is also affected by this sequence of addition.Monomers which may be mentioned here, merely as examples, for the preparation of the rubber fraction of the elastomers are acrylates, such as, for example, n-butyl acrylate and 2-ethylhexyl acrylate, corresponding methacrylates, butadiene and isoprene, and also mixtures of these. These monomers may be copolymerized with other monomers, such as, for example, styrene, acrylonitrile, vinyl ethers and with other acrylates or methacrylates, such as methyl methacrylate, methyl acrylate, ethyl acrylate or propyl acrylate.The soft or rubber phase (with a glass transition temperature of below 0°C) of the elastomers may be the core, the outer envelope or an intermediate shell (in the case of elastomers whose structure has more than two shells). Elastomers having more than one shell may also have more than one shell composed of a rubber phase.If one or more hard components (with glass transition temperatures above 20°C) are involved, besides the rubber phase, in the structure of the elastomer, these are generally prepared by polymerizing, as principal monomers, styrene, acrylonitrile, methacrylonitrile, a-methylstyrene, p-methylstyrene, or acrylates or methacrylates, such as methyl acrylate, ethyl acrylate or methyl methacrylate. Besides these, it is also possible to use relatively small proportions of other comonomers.It is advantageous in some cases to use emulsion polymers which have reactive groups at their surfaces. Examples of groups of this type are epoxy, carboxy, latent carboxy, amino and amide groups, and also functional groups which may be introduced by concomitant use of monomers of the general formulawhere the substituents can be defined as follows:R10is hydrogen or a Ci-C4-alkyl group,R11is hydrogen, a Ci-Cs-alkyl group or an aryl group, in particular phenyl,R12is hydrogen, a Ci-C -alkyl group, a C6-Ci2-aryl group, or -OR13,R13is a Ci-Cs-alkyl group or a C6-Ci2-aryl group, which can optionally have substitution by groups that comprise O or by groups that comprise N,X is a chemical bond, a Ci-C -alkylene group, or a C6-Ci2-arylene group, orZ is a Ci-Cio-alkylene or C6-Ci2-arylene group.The graft monomers described in EP-A 208 187 are also suitable for introducing reactive groups at the surface.Other examples which may be mentioned are acrylamide, methacrylamide and substituted acrylates or methacrylates, such as (N-tert-butylamino)ethyl methacrylate, (N,N-dimethylamino)ethyl acrylate, (N,N-dimethylamino)methyl acrylate and (N,N-diethylamino)ethyl acrylate.The particles of the rubber phase may also have been crosslinked. Examples of crosslinking monomers are 1 ,3-butadiene, divinylbenzene, diallyl phthalate and dihydrodicyclopentadienyl acrylate, and also the compounds described in EP-A 50 265.It is also possible to use the monomers known as graft-linking monomers, i.e. monomers having two or more polymerizable double bonds which react at different rates during the polymerization. Preference is given to the use of compounds of this type in which at least one reactive group polymerizes at about the same rate as the other monomers, while the other reactive group (or reactive groups), for example, polymerize(s) significantly more slowly. The different polymerization rates give rise to a certain proportion of unsaturated double bonds in the rubber. If another phase is then grafted onto a rubber of this type, at least some of the double bonds present in the rubber react with the graft monomers to form chemical bonds, i.e. the phase grafted on has at least some degree of chemical bonding to the graft base.Examples of graft-linking monomers of this type are monomers comprising allyl groups, in particular allyl esters of ethylenically unsaturated carboxylic acids, for example allyl acrylate, allyl methacrylate, diallyl maleate, diallyl fumarate and diallyl itaconate, and the corresponding monoallyl compounds of these dicarboxylic acids. Besides these there is a wide variety of other suitable graft-linking monomers. For further details reference may be made here, for example, to US patent 4 148 846.The proportion of these crosslinking monomers in the impact-modifying polymer is generally up to 5% by weight, preferably not more than 3% by weight, based on the impact-modifying polymer.Some preferred emulsion polymers are listed below. Mention may first be made here of graft polymers with a core and with at least one outer shell, and having the following structure:Instead of graft polymers whose structure has more than one shell, it is also possible to use homogeneous, i.e. single-shell, elastomers composed of 1 ,3-butadiene, isoprene and n-butyl acrylate or of copolymers of these. These products, too, may be prepared by concomitant use of crosslinking monomers or of monomers having reactive groups.Examples of preferred emulsion polymers are n-butyl acrylate-(meth)acrylic acid copolymers, n- butyl acrylate / glycidyl acrylate or n-butyl acrylate / glycidyl methacrylate copolymers, graft polymers with an inner core composed of n-butyl acrylate or based on butadiene and with an outer envelope composed of the abovementioned copolymers, and copolymers of ethylene with comonomers which supply reactive groups.The elastomers described may also be prepared by other conventional processes, e.g. by suspension polymerization.Preference is also given to silicone rubbers, as described in DE-A 3725 576, EP-A 235 690, DE-A 38 00 603 and EP-A 319290.It is, of course, also possible to use mixtures of the types of rubber listed above.UV stabilizers that may be mentioned, the amounts of which used are generally optionally up to 2% by weight, based on the molding composition, are various substituted resorcinols, salicylates, benzotriazoles, and benzophenones.Materials that can be added as colorants are inorganic pigments, such as titanium dioxide, ultra- marine blue, iron oxide, and carbon black, and also organic pigments, such as phthalocyanines, quinacridones, perylenes, and also dyes, such as anthraquinones.Materials that can be used as nucleating agents are sodium phenylphosphinate, aluminum oxide, silicon dioxide, and also preferably talc.Suitable synergists for flame retardants are selected from melamine; preferably melamine cy- anurate, melamine polyphosphate; metal phosphite, zinc borate, zinc stannate and calcium stannate, boehmite; and mixtures thereof.Composition BComponent B is a curable polymer composition B comprising b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2.Preferably, the polymer composition B comprises, preferably consists of b1 ) 50 to100 wt.%, preferably 51 to 99 wt.% of component B1 , b2) 0 to 50 wt%, preferably 1 to 49 wt% of component B2, where the total of the percentages by weight of components B1 and optionally B2 is 100% by weight.Composition B comprises one or more curable silicone rubber(s) and optionally one or more reinforcements) and / or one or more additive(s) and is described in the following as “LSR-Kit”.Component B1The component B1 comprises 50 to 100 wt%, preferably 51 to 99 wt% of component B1 , where the total of the percentages by weight of components B1 and optionally B2 is 100% by weight.If component B2 is present in the thermoplastic moulding composition, the maximum amount of component B1 is decreased by the minimum amount of component B2.Component B1 is one or more curable silicone rubber(s). Preferably, component B1 comprises, preferably consists of one or more liquid silicon rubber(s) (LSR).More preferably, component B1 comprises, preferably consists a self-adhesive silicon rubber consisting of at least one polyorganosiloxane having at least two unsaturated hydrocarbyl residues (preferably vinyl groups) and at least one polyorganohydrogensiloxane cross-linkable via a catalyst, preferably a hydrosilylation catalyst comprising a transition metal (preferably platinum).Suitable LSR rubbers are for example described in St. Johnston et aL, Polym Eng Sci. 2021 ; 61 :331-347.Typically, LSR are based on a polydimethylsiloxane (PDMS) structure with a siliconoxygen backbone and methyl side groups. These silicones are copolymers with siloxanes containing hydride side groups and / or vinyl side and end groups. Other side groups such as phenyl or trifluoropropyl groups may be present.Commercial grades of LSR-Kits are typically sold as a two-part kit comprising part A and part B. Both parts generally contain the base polymer (component B1 ) and preferably silica filler (component B2). The part A generally carries a catalyst and part B generally carries a crosslinker and catalyst inhibitor.Silicone materials have a wide range of formulations. Most commercial LSR-Kits (materials) are PDMS based materials with variations in methyl, vinyl, and hydroxyl group concentrations, chain length distributions, ratios of functional groups, and silica filler loading.The molar mass of the base silicone polymer ranges between 30,000 and 100,000 grams per mole. After crosslinking, a LSR with a Shore A hardness of 30 was shown to have an average molar mass between crosslinks of 35,000 and 45,000 grams per mole.The physical properties of LSR-Kits (materials) are a function of the polymer structure (component B1 ) and reinforcements and / or additives (component B2). Commercial grades can contain 20-30 wt% (based on the total weight of composition B) silica filler (as component B2). Silica loading contributes to the cured LSR reaching 20-35 Shore A durometer.The viscosity of the LSR-Kits generally ranges from near 10 Pa s to above 2000 Pa s, depending on the temperature, degree of curing, shear rate, and grade. As the molecular weight increases, the viscosity increases as longer chains cause increased entanglements. These entanglements are exacerbated by silica filler interactions. Silica filler increases strength and viscosity, but surface modification of the silica can be used to minimize some filler-filler interactions to reduce viscosity.The LSR-Kit (composition B) preferably has a compression set of 60 % or less, preferably 50%, more preferably 45%, more preferably 43%, more preferably 41 %, more preferably 39%, more preferably 37%, more preferably 35%, more preferably 33%, more preferably 31 %; determined by ISO 815-1 :2019 (method A).Suitable liquid silicon rubber-Kits (LSR-Kits) are commercially available, for example under the tradenames Elastosil ® LR by Wacker, Silopren ® by Momentive, SILASTIC ® by Dow. Further LSR suppliers are Shin-Etsu Chemical Co. and Ltd, Elkem Silicones.Component B2The composition B comprises 0 to 50 wt%, preferably 0.1 to 49 wt% of component B2, where the total of the percentages by weight of components B1 and optionally B2 is 100% by weight.If component B2 is present, the maximum amount of component B1 is decreased by the minimum amount of component B2, so that the total amount of components B1 and B2 is still 100 wt%.Component B2 is optionally present and is one or more reinforcement(s) and / or one or more additive^).Suitable reinforcement(s) and additive(s) and amounts are generally the same as mentioned as components A4 (reinforcement(s)) and A5 (additive(s)) above.Composition B can be a two-part kit comprising part A and part B. Both parts generally contain the base polymer (component B1 ) and preferably one or more reinforcement(s), more preferably silica, most preferably amorphous silica (component B2). The part A additionally generally carries a catalyst and part B additionally generally carries a crosslinker and catalyst inhibitor (also called crosslinking inhibitor).The present invention therefore also relates to the inventive Composition B in form of a two-part kit comprising a part A and a part B, wherein part A preferably comprises component B1 , one or more reinforcement(s), more preferably silica, most preferably amorphous silica and a catalyst and part B comprises component B1 , one or more reinforcement(s), more preferably silica, most preferably amorphous silica at least one crosslinker and at least one catalyst inhibitor.Especially preferred reinforcement(s) in component B are inorganic materials, in particular siliceous materials. The reinforcing siliceous fillers are preferably chosen from colloidal silicas, fumed silica powders, precipitated silica powders or their mixtures. These powders exhibit a mean particle size generally of less than 0.1 pm and a BET specific surface generally of greater than 50 m2 / g, preferably of between 50 and 400 m2 / g, in particular between 90 and 350 m2 / g.The amount of the reinforcement(s), especially silica in component B is generally 0 to 45 wt%, preferably 10 to 35 wt%, more preferably 20-30 wt%.In addition to the optionally present reinforcement(s) and / or additive(s) mentioned above, composition B comprises as component B2 generally at least one catalyst, at least one crosslinker and at least one catalyst inhibitor (also called crosslinking inhibitor).CatalystThe catalysts advantageously used in the composition B comprise all transition metal catalysts of use in the hydrosilylation of polyorganosiloxanes carrying =Si — H units and of polyorga- nosiloxanes carrying =Si-(alkenyl unsaturation) units. Preferred are platinum, rhodium, iridium, nickel, ruthenium and / or palladium catalysts. Particularly preferred iridium or plalinum catalysts and most preferred are platinum catalysts.The platinum catalysts can be any complex of platinum and of an organic compound, e.g. those described in U.S. Pat. No. 3,159,601 , U.S. Pat. No. 3,159,602 and U.S. Pat. No. 3,220,972 and European patents EP-A-0 057 459, EP-A-0 188 978 and EP-A-0 109 530, or any complex of platinum and of vinylated organosiloxanes, e.g. those described in U.S. Pat. No. 3,419,593, U.S. Pat. No. 3,715,334, U.S. Pat. No. 3,377,432 and U.S. Pat. No. 3,814,730.Mention may be made of chloroplatinic acid, a chloroplatinic acid modified by an alcohol or also a complex of chloroplatinic acid with an olefin, an aldehyde or a vinylsiloxane, inter alia. U.S. Pat. No. 2,823,218 describes a hydrosilylation catalyst of the chloroplatinic acid type and U.S. Pat. No. 3,419,593 relates to catalysts formed by complexes of chloroplatinic acid and of orga- nosilicone of the vinylsiloxane type. Complexes of platinum and of hydrocarbons of use as hydrosilylation catalyst are disclosed by U.S. Pat. Nos. 3,159,601 and 3,159,602. U.S. Pat. No. 3,723,497 describes a platinum acetylacetonate and U.S. Pat. No. 3,220,972 has as subject matter catalysts based on platinum alkoxide.Further examples of suitable catalysts are platinum / unsaturated siloxane complexes, in particular platinum / vinylsiloxane complexes, especially those obtained by reaction between a platinum halide and an unsaturated organosilicon material, such as an unsaturated silane or an unsaturated siloxane, e.g. according to the teaching of U.S. Pat. No. 3,775,452, to which a person skilled in the art may refer.Most commercial LSR Kits employ platinum catalysts. The catalyst breaks the double bond of the vinyl group and then bonds to a hydride of another chain. The reaction is accelerated by heat. The methyl groups crosslink less readily than the vinyl groups, providing some control of the crosslink density. Crosslinking can occur at the end of chains or at random functional side groups within the chains. This crosslinking creates complex network structures that have crosslink densities and structures based on the concentration and distribution of methyl, vinyl, and hydride groups.The catalyst levels, preferably the platinum catalyst levels are generally 1 part per million and increasing toward 200 parts per million (based on the total weight of composition B). A number of commercial grades have been shown to have 10-15 parts per million of platinum catalyst (based on the total weight of composition B). At typical cure temperatures of 140-200°C, this loading results in production cure times ranging between approximately 0.5 and 7 s per millimeter of part thickness.CrosslinkerThe crosslinker, also referred to as a curing agent, is generally a short-chain polyorganosiliox- ane that is usually soluble in the base silicone polymer. The crosslinker molar mass generally ranges from 1900 to 7700 g per mole. The short-chain crosslinker ultimately crosslinks the hydride group to the vinyl groups with the aid of the catalyst. Commercial LSR-Kits report controlling ratios of silicon bonded hydrogen atoms in the crosslinker to silicon bonded vinyl groups in the base resin, resulting in crosslinker loadings of about 1 .2 wt%. The type and loading of crosslinker vary across different LSR grades. Suitable crosslinkers known in the art and commercially available.Catalyst inhibitorAs regards the catalyst inhibitor (crosslinking inhibitor), when it is present according to the applications targeted, it is added to the composition in an amount such that it inhibits the action of the catalyst at ambient temperature, this inhibitory action ceasing during the crosslinking treatment at high temperature.Inhibitors prevent premature curing and are generally standard in commercial LSR-Kits. The inhibitors block the catalyst and slow the reaction. As the LSR heats up in the cavity during curing, the inhibitor is volatilized and the reaction accelerates.These inhibitors are typically short polymer chains with functional end groups, such as ethynyl cyclohexanol with a molar mass generally ranging between 1900 and 7700 g / mol. Inhibitors may also include acetylenic alcohols, hydroperoxides, alkenyl-containing maleates, and / or alkenyl isocyanurates.Mention may be made, among the inhibitors, of dialkyl dicarboxylates (U.S. Pat. Nos. 4,256,870 and 4,476,166); dialkyl acetylenedicarboxylates (U.S. Pat. No. 4,347,346); acetylenic alcohols (U.S. Pat. Nos. 3,989,866, 4,336,364 and 3,445,420), and the like.The amount of the inhibitor is generally of the order of 0.001 to 1 part by weight, based on the composition B.When the inventive composition is used for molding, it does generally not comprise an adhesion promoter. For other applications requiring properties of adhesion of the elastomer after crosslinking, at least one adhesion promoter can be added to the composition. Suitable adhesion promotors are known in the art.The inventive composition comprises compositions A and B. The weight ratio of composition A to composition B is generally depending on the article to be formed, preferably > 1 , for example 1.2-10 : 1.PreparationThe composition of the invention can be prepared by processes known per se, by mixing the starting components in conventional mixing apparatus, such as screw-based extruders, Bra- bender mixers, or Banbury mixers.Preferably, compositions A and B are prepared separately, in each case by processes known in the art, e.g. by mixing the starting components in conventional mixing apparatus, such as screw-based extruders, Brabender mixers, or Banbury mixers.In the preferred case, when composition B is present in form of a two-part kit (parts A and B as mentioned above), also part A and part B of component B are prepared separately by processes known per se, e.g. by mixing the starting components in conventional mixing apparatus, such as screw-based extruders, Brabender mixers, or Banbury mixers.Components A and B (parts A and B) are mixed during the process of preparation of the inventive article, as described below, preferably in a multi-material injection molding (MMM) process.ArticleThe present invention further relates to an article cured from the inventive layered structure. Said article comprises, preferably consists of a polymer composition B* cured from the curable polymer composition B adhered to the polymer composition A.Suitable components of compositions A and B are mentioned above. A suitable preparation process is described below.Preferably, the adherence of the polymer composition B* to the polymer composition A in the inventive article is in form-fitting, force-fitting and / or cohesive manner, preferably in a cohesive manner.The silicone compositions B are particularly suitable for casting and for adhesively bonding electrical and electronic parts and for the production of composite articles. Composite articles are understood here as meaning a uniform article comprising a composite material which is composed of a silicone elastomer part produced from the silicone compositions B and at least one substrate produced from polymer composition A, so that there is a strong, permanent bond between the two parts. Such a composite article is preferably produced by processing a polymer composition A to give a shaped article, followed by bringing the silicone composition B into direct contact with this shaped article and crosslinking. This can be effected, for example, by injection molding, by means of extrusion, and by the so-called press-molding method. Suitablemethods are described below in more detail. Composite materials and in particular composite articles can be used in a very wide range of applications, for example in the electronics, household appliance, consumables, construction, and automotive industries, in medical technology, in the production of sport and leisure articles, etc.Preferred articles according to the present invention are therefore composite articles.Silicon sealings are for example used in many connector types. The combination of silicon rubbers) with polyamide and polyester compounds results in a huge potential of fer high-voltage connector applications.Preferred articles are electric or electronic (E&E) components, components in vehicles or other means of conveyance, like automotive components (especially E-mobility), aircraft components, ship components, spacecraft components, medical devices, kitchen and household items, parts of buildings, office equipment, sports, garden and leisure equipment, telecommunication components, information technology components, consumer electronics components, or computer components.Preferred components are connectors like plug connectors and electrical connectors, junction boxes, plugs, plug parts, cable harness components, circuit mounts, circuit-mount components, three-dimensionally injection-molded circuit mounts, and mechatronic components.Most preferred articles are electric or electronic (E&E) components, components in vehicles or other means of conveyance, like automotive components, more preferably connectors and junction boxes.ProcessThe inventive article can be prepared by any process known in the art.The silicone compositions B can be bonded to a substrate of the polymer composition A by applying the silicone compositions B to a substrate of the polymer composition A and then crosslinking them to give a composite article. The inventive composition can advantageously be used in particular where good adhesive strength between the silicone composition B and the substrate produced from polymer composition A with improved heat ageing properties of the silicone composition B and therefore improved compression sets of the composite article is desired. The substrate produced from polymer composition A may for example be present as a shaped article, film or coating. The silicone compositions B are for example suitable for the production of composite materials by coating, adhesive bonding or casting, and for the production of shaped articles.Preferably, the present invention therefore further relates to a process for preparing an article comprising the steps: i) providing a polymer composition A and a polymer composition B, wherein the polymer composition A comprises: a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and wherein the curable polymer composition B comprises: b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2; and ii) adhereing the composition B to a substrate of the polymer composition A by curing the polymer composition B in a two-step injection molding process.The curing is preferably achieved by heating to 30 to 250°C.A suitable process for preparing the inventive article is a two-step injection molding process, wherein the composition B (preferably LSR-Kit) is molded on the molded polymer composition A generally in the same mold, e.g in processes like overmolding, two-shot (or multi-shot) molding, and insert molding.The composition B is molded directly onto the molded composition A (substrate) right after the substrate itself has been molded.In overmolding, two-shot (or multi-shot) molding, and insert molding processes, composition B is molded directly onto or around components made of composition A, thereby allowing a combination of material properties and the direct assembly of composition B onto composition A.The first shot or inserted component is typically the more rigid material (composition A) with the more flexible composition B being formed around or onto it.The overmolding or two-shot molding process involves molding composition A and then molding composition B directly onto it while it remains in the same mold. Components within the mold are generally indexed or rotated to allow composition A to be formed and then composition B to the formed molding directly on top. Similarly, insert molding involves loading a previouslyformed part of composition A into the mold and injecting composition B around it. Operators or pick-and-place robots may be used to physically install the insert into the mold prior to injection.Adhesion between the composition A and composition B can be achieved by mechanical and / or chemical interactions. Preferably, compositions B comprise silicon rubber(s) B1 modified with adhesion promotors targeting thermoplastics. These are generally organofunctional silanes such as amino-silane, epoxsilane, glycidoxy-silane, methacryloxy-silanes, or similar. This reduces or avoids secondary process steps such as priming or other surface treatments, e.g. corona, atmospheric pressure plasma jet, and Pyrosil flame. Adhesion modified silicon rubber(s), especially adhesion modified liquid silicon rubber(s) are known in the art and commercially available (see composition B described above).It is possible, to postcure the obtained article subsequent to step ii) of the inventive process.Step ii) comprises adhering the polymer composition B to a substrate of the polymer composition A by curing the polymer composition B in a two-step injection molding process.Suitable two-step injection molding processes are described above. The reaction conditions in said processes, e.g. temperature and time, especially depend on the compositions A and B employed. Typical molding temperatures are 10 to 40°C above of the melting temperature of the polymer.The curing of the molded mixture can be done through various methods such as heat or UV light, preferably by heat. Suitable temperatures and times - again - depend on the compositions A and B employed.The present invention further relates to the use of one or more compound(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, in an article cured from a layered structure comprising a) a first layer of a polymer composition A comprising a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and b) a second layer of a curable polymer composition B comprising b1 ) one or more curable silicone rubber(s), as component B1 ,b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2, in direct contact with (adjacent to) the first layer; for the improvement of mechanical properties of the article.It was further found by the inventors that compounds which are able to scavenge or complex these organic compounds, especially the acidic phosphorous species, result in a significant improvement of the heat ageing properties of the silicon rubber and therefore on the compression sets of the plastic-silicone composites, as supported by the examples in the present application.EXAMPLESThe following components were used in the experiments:Component A1 : Polyamide-66 having a viscosity number of 115-135 ml / g, determined as 0.5 wt% solution in 96% wt sulfuric acid at 25°C according to ISO 307:2019 (Ultramid® A24 from BASF SE)Component A2: Polyamide-6 having a viscosity number of 100-115 ml / g, determined as 0.5 wt% solution in 96% wt sulfuric acid at 25°C according to ISO 307 (Ultramid® B22 from BASF SE)Component A3: Polyamide 6I / 6T having a relative viscosity of 1 .47-1 .57, determined as 0.5 wt% solution in m-kresol at 20°C according to ISO 307:2019 (Grivory® G21 Natural from EMS)Component A4: Polyamide 6T / 66 having a relative viscosity of 100 ml / g , determined as 0.5 wt% solution in 96% wt sulfuric acid at 25° C according to ISO 307 (Arlen C2000 from Mitsui Chemicals Europe GmbH)Component B: Commercially available glass fibers for polyamides having a length of 4.5 mm and diameter of 10 pm (Standard E glass fiber)Component C1 : Commercially available aluminum distearate (CAS: 300-92-5)Component C2: Commercially available calcium stearate (CAS: 85251-71-4)Component D1 : Commercially available Irganox® 1098 from BASF SEComponent D2: Commercially available sodium hypophosphite monohydrate (CAS: 10039-56- 2)Component E1 : Commercially available Exolit® OP 1400 from Clariant Plastics and Coatings (Deutschland) GmbHComponent E2: Commercially available Exolit® OP 1230 from Clariant Plastics and Coatings (Deutschland) GmbHComponent F1 : Commercially available additive concentrate of copper-1 -iodide and potassium iodide available as PolyAd PB Iodide Stab 201 from BYK-Chemie GmbHComponent F2: Commercially available copper-1 -iodide (CAS: 7681-65-4)Component F3: Commercially available copper-1 -oxide (CAS: 1317-39-1)Component F4: Commercially available ethylenediaminetetraacetic acid copper(ll) disodium salt (CAS: 39208-15-6)Component F5: Commercially available iodobis(triphenylphosphino)copper (CAS: 16109-82-3) available as Bruggolen H3350 from Brueggemann (25%)Component F6: Commercially available zinc oxide available as Bayoxid® Z aktiv from Lanxess.Component F7: Commercially available zinc stannate available as Falmtard S from William Blythe LTD (CAS: 12036-37-2)Component F8: Commercially available lanthanum carbonate octyhydrate (CAS: 6487-39-4)Component G: Orange pigment mixtureComponent H: Additive mixture comprising lubricant, stabilizers and carbon black in grinded polymer 6T / 66Component 11 : Liquid silicon rubber Silopren LSR 3366 / 50 from MomentiveComponent I2: Liquid silicon rubber Elastosil LSR 3842 / 50 from WackerThe sum of the proportions of components A) to H) in table 1 and 2 is 100% by weight.The Compression Set TestThe compression set is usually tested according to the standards ISO 815-1 , DIN ISO 815-1 (this replaces DIN 53517, which is still noted in old data sheets or specifications) or ASTMD395. The CS test procedure is carried out at either ambient or elevated temperatures, depending on the standard and requirements. Measurements at low temperatures are defined in (DIN) ISO 815-2 (see also compression set at low temperatures). The CS can be determined both with standard test specimens as well as with finished parts.General Procedure of the CS test in accordance with relevant standards:In the standardised CS test with elevated temperature, a precisely defined elastomer specimen is• measured at its initial height• compressed in a defined manner using a device, usually by 25 % of its initial height• exposed to a defined temperature for a defined period of time, often 125-1000 hours, in a laboratory oven in the compressed state• then released and cooled in a defined way (depending on the method, cooling takes place in the compressed or in the released state)• and measured at its new height after a defined timeThe compression set describes the remaining part of the initially applied compression in percent. It therefore refers to the deformation trajectory and not, as often assumed, to the initial height of the specimen.The natural-colored polyamide granules were dried at 80°C to a moisture content of less than 0.1 % by weight, all other ingredients were pre-mixed in a tumble mixer for 10 minutes. In the next step, the dried polyamide granulates together with the dry blended ingredients were melt- extruded using a twin-screw extruder having a diameter of 25 mm and a L / D ratio of 44.The extruder was operated with a rotating speed of 330 min-1 , a throughput of 20 kg / h and with a cylinder temperature of 280°C to 300 °C for Comp. Ex. 1 , Ex. 1 -1 to 1 -6, Comp. Ex. 2, Ex. 2-1 to 2-2, and at 320°C to 330°C for Comp. Ex.3, Ex. 3-1 employing a flat temperature profile.The obtained strands were cooled in a water bath and granulated. The resulting granules were injection-moulded on an injection moulding machine at 290°C melt temperature and a tool temperature of 80 °C for Comp. Ex. 1 , Ex. 1-1 to 1-6, Comp. Ex. 2, Ex. 2-1 to 2-2, and at 320°C melt temperature and a tool temperature of 140 °C for Comp. Ex.3, Ex. 3-1 in order to produce 60 x 60 x 2 mm sheets. The interaction of the plastic material with the liquid silicon rubber was determined via the compression set, which was tested acc. to DIN ISO 815-1. The LSR test specimen is a cylinder with a diameter of approximately 13 mm and a height of approximately 6.3 mm.The weight ratio of the sum of components A to component H (Component A according to the present invention) to component I (Component B according to the present invention) is about 5 : 1.Table 1 and 2 show the constitutions of the molding compositions and the results of the tests.Table 1Table 2A lower compression set reflects a higher elastic restoring force of the silicone.

Claims

Claims1 . A layered structure comprising a) a first layer of polymer composition A comprising a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and b) a second layer of curable polymer composition B comprising b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2, in direct contact with the first layer.

2. The layered structure according to claim 1 , wherein the polymer composition A comprises, preferably consists of a1 ) 10 to 96.99 wt%, preferably 20 to 79.65 wt% of component A1 , a2) 0.01 to 5 wt%, preferably 0.05 to 2.5 wt% of component A2, a3) 3 to 30 wt%, preferably 10 to 25 wt% of component A3, a4) 0 to 50 wt%, preferably 10 to 35 wt% of component A4, a5) 0 to 50 wt%, preferably 0.3 to 20 wt% of component A5, where the total of the percentages by weight of components A1 , A2, A3, optionally A4 and optionally A5 is 100% by weight.

3. The layered structure according to claim 1 or 2, wherein the curable polymer composition B comprises, preferably consists of b1 ) 50 to 100 wt%, preferably 51 to 99 wt% of component B1 , b2) 0 to 50 wt%, preferably 1 to 49 wt% of component B2, where the total of the percentages by weight of components B1 and optionally B2 is 100% by weight.

4. The layered structure according to any one of claims 1 to 3, wherein component A1 comprises, preferably consists of one or more thermoplastic polymer(s), preferably one or more polyamide(s) and / or one or more polyesters.

5. The layered structure according to any one of claims 1 to 4, wherein component A2 comprises, preferably consists of one or more compound(s) comprising one or more metal(s) of the 4thand / or 5thperiod, preferably one or more metal(s) metal of the 4thperiod, morepreferably V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Cd, La, Ce, W, Pt, Au, Pb, Al and / or Sn, further more preferably Cu, Zn, Sn, La, Ce and / or Ag, in particular Cu, Zn, Sn, La, most preferably Cu+, Cu2+, Zn2+, Sn2+, Sn4+, La3+, Ce4+, and / or Ag+, further most preferably Cu+and / or Cu2+, even further most preferably Cu+.

6. The layered structure according to any one of claims 1 to 5, wherein component A2 comprises, preferably consists of an oxide, halide, preferably chloride, bromide, iodide; stan- nate, carbonate, sulfate, hydroxide, triphenylphosphine, ammonia, mono-, di-, and tri- alkyl amines, pyridine, caprolactam, pyrrolidine, isocyanides, cyanides, ethylene diamine, nitrilotriacetic acid, ethylene diamine triacetic acid, ethylene diamine tretraacetic acid, and / or substituted or unsubstituted dipyridyl; preferably 2, 2'dipyridyl; phthalocyanine, and / or 8-hydroxyquinoline, of one or more metal(s) as disclosed in any one of claims 1 to 5.

7. The layered structure according to any one of claims 1 to 6, wherein component A2 comprises, preferably consists of copper(l)halide; preferably copper(l)iodide; copper(l)oxide, zinc(ll)oxide, zinc(ll)stannate, ethylenediaminetetraacetic acid copper(ll) disodium salt, iodobis(triphenylphosphino)copper(l), and mixtures thereof, preferably copper(l)iodide, copper(l)oxide, more preferably copper(l)iodide.

8. The layered structure according to any one of claims 1 to 7, wherein component A3 comprises, preferably consists of red phosphorus, metal phosphinates and / or phosphinic acid salts.

9. The layered structure according to any one of claims 1 to 7, wherein component B1 comprises, preferably consists of one or more liquid silicon rubber(s) (LSR), preferably a self- adhesive silicon rubber consisting of at least one polyorganosiloxane having at least two unsaturated hydrocarbyl residues and at least one polyorganohydrogensiloxane crosslinked via hydrosilylation catalyst comprising a transition metal.

10. An article cured from the layered structure according to any one of claims 1 to 9.11 . The article according to claim 10 comprising, preferably consisting of a cured polymer composition B* cured from the curable polymer composition B adhered to the polymer composition A.

12. The article according to claim 11 , wherein the adherence of the cured polymer composition B* to the polymer composition A is in form-fitting, force-fitting and / or cohesive manner, preferably in a cohesive manner.

13. The article according to any one of claims 10 to 12, wherein the article is an electric or electronic (E&E) part or an automotive part, preferably a connector or a junction box.

14. A process for preparing an article according to any one of claims 10 to 13 comprising the steps: i) providing a polymer composition A and a curable polymer composition B, wherein the polymer composition A comprises: a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and wherein the curable polymer composition B comprises: b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2; and ii) adhering the polymer composition B to a substrate of the polymer composition A by curing the polymer composition B in a two-step injection molding process.

15. Use of one or more compound(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, in an article cured from a layered structure comprising a) a first layer of a polymer composition A comprising a1 ) one or more polymers(s), as component A1 , a2) one or more components(s) comprising one or more metal(s) of the 4th, 5thand / or 6thperiod of the IUPAC Periodic Table of the Elements dated 4 May 2022, as component A2, a3) one or more flame retardant(s) comprising phosphorous, as component A3, a4) optionally one or more reinforcement(s), as component A4, a5) optionally one or more additive(s), as component A5; and b) a second layer of a curable polymer composition B comprising b1 ) one or more curable silicone rubber(s), as component B1 , b2) optionally one or more reinforcement(s) and / or one or more additive(s), as component B2, in direct contact with the first layer; for the improvement of mechanical properties of the article.