Flame retardant polymer composition

Abstract

Herein described is a specific polymer composition comprising a flame retardant.

Description

[0001] Flame retardant polymer composition The requirements of flame retardant polymers are steadily increasing. Besides good flame retardancy, also requirements for mechanical properties and toxicity are increasingly coming into focus. Melamine cyanurate is a well- known flame retardant for polymers. However, the mechanical properties and toxicity of polymer composition with melamine cyanurate is not sufficient for mechanically very demanding applications that also require high flame retardancy requirements and low toxicity. For this reason, the object of the present invention is to provide a polymer composition, which exhibits at least one of: - improved flame retardancy - improved mechanical properties, and - lower toxicity. This object is at least partially solved by Polymer composition PC1, comprising: a polymer P1, a mixture M1 comprising a compound A and a compound B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): (1), wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and preferably a filler F1; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. Further, the object is at least partially solved by a use of a mixture M1 comprising a compound A and a compound B as additive, preferably as flame retardant and / or modifier, in a polymer composition PC1, preferably the polymer composition PC1 described herein, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2 and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. In addition, the object is at least partially solved by a use of a mixture M1 comprising a compound A and a compound B as additive, preferably as flame retardant and / or modifier, in a polymer composition PC1 comprising a filler F1, preferably the polymer composition PC1 described herein, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2 and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. Moreover, the object is at least partially solved by a method for producing a polymer composition PC1, preferably the polymer composition PC1 described herein, comprising the following steps: mixing a mixture M2 comprising polymer P1 and a mixture M1, preferably and a filler F1, to obtain a polymer composition PC1; wherein the mixture M1 comprises compound A and B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. The polymer P1 is not particularly limited. Preferably, the polymer P1 is a thermoplastic polymer, preferably polyamide (PA); preferably PA 6 or PA 66; or thermoplastic polyurethane (TPU), more preferably a polyamide (PA); preferably PA 6 or PA 66; more preferably PA 6. Thus, the flame retardancy is improved. The content of the polymer P1 in the polymer composition PC1 and / or the mixture M2 is not particularly limited. Preferably, a content of the polymer P1 in the polymer composition PC1 and / or the mixture M2 is 25 weight-% or more, preferably 30 weight-% or more, more preferably 40 weight-% or more, more preferably 50 weight-% or more, more preferably 60 weight-% or more, more preferably 65 weight-% or more, more preferably 70 weight-% or more, more preferably 75 weight-% or more, more preferably 80 weight-% or more, more preferably 90 weight-% or more and / or a content of the polymer P1 in the polymer composition PC1 and / or the mixture M2 is 99 weight-% or less, preferably 95 weight-% or less, more preferably 90 weight-% or less, more preferably 85 weight-% or less, more preferably 80 weight- % or less, more preferably 75 weight-% or less, more preferably 70 weight-% or less, more preferably 65 weight-% or less, more preferably 60 weight-% or less. Thus, the mechanical properties are improved. The melting temperature Tm of the polymer P1 is not particularly limited. Preferably, a Tm of the polymer P1 is 150°C or more, preferably 175°C or more, more preferably 190°C or more, more preferably 200°C or more, more preferably 210°C or more, more preferably 220°C or more, more preferably 230°C or more, more preferably 240°C or more, more preferably 250°C or more, more preferably 260°C or more and / or a Tm of the polymer P1 is 400°C or less, preferably 350°C or less, more preferably 325°C or less, more preferably 300°C or less, more preferably 290°C or less, more preferably 280°C or less, more preferably 270°C or less, more preferably 260°C or less. Thus, the flame retardancy is improved. The glass-transition temperature Tg of the polymer P1 is not particularly limited. Preferably, a Tg of the polymer P1 is 10°C or more, preferably 20°C or more, more preferably 30°C or more, more preferably 40°C or more, more preferably 50°C or more, more preferably 60°C or more and / or a Tg of the polymer P1 is 80°C or less, preferably 70 °C or less, more preferably 60 °C or less, more preferably 50 °C or less, more preferably 40 °C or less, more preferably 30 °C or less. Thus, the flame retardancy is improved. The weight average molecular weight Mw of the polymer P1 is not particularly limited. Preferably, a weight average molecular weight Mw of the polymer P1 is 3*105g / mol or more, preferably 4*105g / mol or more, more preferably 5*105g / mol or more, more preferably 6*105g / mol or more, more preferably 7*105g / mol or more, more preferably 8*105g / mol or more, more preferably 9*105g / mol or more and / or a weight average molecular weight Mw of the polymer P1 is 10*105g / mol or less, preferably 9*105g / mol or less, more preferably 8*105g / mol or less, more preferably 7*105g / mol or less, more preferably 6*105g / mol or less, more preferably 5*105g / mol or less, more preferably 4*105g / mol or less. Thus, the mechanical properties and flame retardancy are improved. The viscosity number of the polymer P1 is not particularly limited. Preferably, a viscosity number VN of the polymer P1 is 40 ml / g or more, preferably 60 ml / g or more, more preferably 80 ml / g or more, more preferably 100 ml / g or more, more preferably 120 ml / g or more, more preferably 140 ml / g or more, more preferably 160 ml / g or more and / or a viscosity number of the polymer P1 is 300 ml / g or less, preferably 250 ml / g or less, more preferably 230 ml / g or less, more preferably 210 ml / g or less, more preferably 190 ml / g or less, more preferably 170 ml / g or less, more preferably 150 ml / g or less, more preferably 130 ml / g or less. Thus, the mechanical properties and flame retardancy are improved. According to the invention, compound A comprises a triazine. In a preferred embodiment, compound A comprises the following binding motive: , preferably . Thus, the flame retardancy is improved. In a preferred embodiment, compound A is melam, melem, benzoguanamine, ammeline, ammelide, acetoguanamine or mixtures thereof, preferably melem, melam, benzoguanamine, acetoguanamine or mixtures thereof, more preferably melem, melam or mixtures thereof, more preferably melem or melam, more preferably melam. Thus, the flame retardancy is improved and the toxicity of the polymer composition is decreased. In a preferred embodiment, compound A comprises, preferably consists of, melam and / or melem and / or benzoguanamine and / or ammeline and / or ammelide and / or acetoguanamine. Thus, the flame retardancy is improved and the toxicity of the polymer composition is decreased. According to the invention, compound B is a compound of formula (1): (1), wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms. In a preferred embodiment, R1 to R3 are independently selected from H, OH and C1-C4 alkyl, preferably H, OH and methyl. Thus, the flame retardancy is improved. In a preferred embodiment, compound B is cyanurate. Thus, the flame retardancy is improved. The ratio of compound A to compound B is not particularly limited. The inventors recognized that surprisingly the decomposition temperature of mixture M1 is significantly influenced by the ratio of compound A to compound B in the mixture M1. Thus, in a preferred embodiment a ratio of compound A to compound B is 0.5 or more, preferably 0.6 or more, more preferably 0.7 or more, more preferably 0.8 or more, more preferably 0.9 or more, more preferably 1.0 or more, more preferably 1.1 or more, more preferably 1.2 or more, more preferably 1.3 or more, more preferably 1.4 or more, more preferably 1.5 or more and / or a ratio of compound B to compound A is 0.5 or more, preferably 0.6 or more, more preferably 0.7 or more, more preferably 0.8 or more, more preferably 0.9 or more, more preferably 1.0 or more, more preferably 1.1 or more, more preferably 1.2 or more, more preferably 1.3 or more, more preferably 1.4 or more, more preferably 1.5 or more. Thus, the flame retardancy is improved. According to the invention, the decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. Thus, the polymer composition exhibits improved flame retardancy. In a preferred embodiment, the decomposition temperature of mixture M1 is 200°C or more, preferably 250°C or more, more preferably 290°C or more, more preferably 310°C or more, more preferably 330°C or more, more preferably 350°C or more, more preferably 370°C or more, more preferably 390°C or more, more preferably 410°C or more, more preferably 430°C or more and / or the decomposition temperature of mixture M1 is 445°C or less, preferably 440°C or less, more preferably 420°C or less, more preferably 400°C or less, more preferably 380°C or less, more preferably 360°C or less, more preferably 340°C or less, more preferably 320°C or less. Thus, the flame retardancy is further improved. In a preferred embodiment, the mixture M1 comprises, preferably consists of, melamcyanurat, melemcyanurat, benzoguanamincyanurat, ammelincyanurat, ammelidcyanurat, acetoguanamincyanurat or mixtures thereof, preferably melamcyanurat, melemcyanurat, benzoguanamincyanurat, acetoguanamincyanurat or mixtures thereof, more preferably melamcyanurat, melemcyanurat or mixtures thereof, more preferably melamcyanurat. Thus, the flame retardancy is improved. According to the invention, the polymer composition may comprise a filler F1. In a preferred embodiment, the polymer composition PC1 and / or the mixture M2 comprises a filler F1. Thus, the mechanical properties are improved. In a preferred embodiment, the filler F1 is fibers or beads, preferably fibers, more preferably milled glass fibers. Thus, the mechanical properties and flame retardancy are improved. In a preferred embodiment, the filler F1 is made of glass, preferably is glass fibers, glass beads or a mixture thereof, more preferably is glass fibers. Thus, the mechanical properties and flame retardancy are improved. The length Larit of the filler F1 is not particularly limited. Preferably, a length Larit of the filler F1 is 40 µm or more, preferably 50 µm or more, more preferably 60 µm or more, more preferably 70 µm or more, more preferably 80 µm or more, more preferably 90 µm or more, more preferably 95 µm or more, more preferably 100 µm or more, more preferably 105 µm or more, more preferably 110 µm or more, more preferably 120 µm or more, more preferably 130 µm or more, more preferably 140 µm or more, more preferably 150 µm or more and / or a length Laritof the filler F1 is 20.00 mm or less, preferably 10.00 mm or less, more preferably 1.00 mm or less, more preferably 800 µm or less, more preferably 600 µm or less, more preferably 400 µm or less, more preferably 200 µm or less, more preferably 150 µm or less, more preferably 140 µm or less, more preferably 130 µm or less, more preferably 120 µm or less, more preferably 110 µm or less, more preferably 105 µm or less, more preferably 100 µm or less, more preferably 95 µm or less, more preferably 85 µm or less, more preferably 75 µm or less, more preferably 65 µm or less. The inventors recognized that surprisingly if the length Larit of the filler F1 is in this range, the flame retardancy is improved and, in addition, the mechanical properties of the polymer composition PC1 are improved. This is particularly true if the filler F1 is fibers, preferably glass fibers. The length Lweight of the filler F1 is not particularly limited. Preferably, a length Lweight of the filler F1 is 40 µm or more, preferably 50 µm or more, more preferably 60 µm or more, more preferably 70 µm or more, more preferably 80 µm or more, more preferably 90 µm or more, more preferably 95 µm or more, more preferably 100 µm or more, more preferably 105 µm or more, more preferably 110 µm or more, more preferably 120 µm or more, more preferably 130 µm or more, more preferably 140 µm or more, more preferably 150 µm or more, more preferably 160 µm or more, more preferably 170 µm or more, more preferably 180 µm or more, more preferably 190 µm or more, more preferably 200 µm or more, more preferably 210 µm or more, more preferably 220 µm or more and / or a length Lweightof the filler F1 is 20.00 mm or less, preferably 10.00 mm or less, more preferably 1.00 mm or less, more preferably 800 µm or less, more preferably 600 µm or less, more preferably 400 µm or less, more preferably 300 µm or less, more preferably 240 µm or less, more preferably 230 µm or less, more preferably 220 µm or less, more preferably 210 µm or less, more preferably 200 µm or less, more preferably 190 µm or less, more preferably 180 µm or less, more preferably 170 µm or less, more preferably 160 µm or less, more preferably 150 µm or less, more preferably 140 µm or less, more preferably 130 µm or less, more preferably 120 µm or less, more preferably 110 µm or less, more preferably 105 µm or less, more preferably 100 µm or less, more preferably 95 µm or less, more preferably 85 µm or less. The inventors recognized that surprisingly if the length Lweightof the filler F1 is in this range, the flame retardancy is improved and, in addition, the mechanical properties of the polymer composition PC1 are improved. This is particularly true if the filler F1 is fibers, preferably glass fibers. The thickness of the filler F1 is not particularly limited. Preferably, a thickness Taritof the filler F1 is 2.0 µm or more, preferably 4.0 µm or more, more preferably 6.0 µm or more, more preferably 8.0 µm or more, more preferably 10.0 µm or more, more preferably 10.1 µm or more, more preferably 10.3 µm or more, more preferably 10.5 µm or more, more preferably 10.7 µm or more, more preferably 10.9 µm or more, more preferably 11.0 µm or more, more preferably 11.1 µm or more, more preferably 11.3 µm or more, more preferably 11.5 µm or more, more preferably 11.7 µm or more, more preferably 11.9 µm or more, more preferably 12.0 µm or more, more preferably 14.0 µm or more and / or a thickness Tarit of the filler F1 is 40.0 µm or less, preferably 30.0 µm or less, more preferably 25.0 µm or less, more preferably 20.0 µm or less, more preferably 15.0 µm or less, more preferably 14.0 µm or less, more preferably 13.5 µm or less, more preferably 13.0 µm or less, more preferably 12.5 µm or less, more preferably 12.0 µm or less, more preferably 11.8 µm or less, more preferably 11.6 µm or less, more preferably 11.4 µm or less, more preferably 11.2 µm or less, more preferably 11.0 µm or less, more preferably 10.8 µm or less, more preferably 10.6 µm or less, more preferably 10.4 µm or less, more preferably 10.2 µm or less, more preferably 10.0 µm or less. Thus, the flame retardancy is improved. The ratio of the length to the thickness of the filler F1 is not particularly limited. Preferably, a ratio [µm / µm] of a / the length Larit to a / the thickness Tarit of the filler F1 is 0.5 or more, preferably 1.0 or more, more preferably 3.0 or more, more preferably 5.0 or more, more preferably 7.0 or more, more preferably 9.0 or more, more preferably 9.2 or more, more preferably 9.4 or more, more preferably 9.6 or more, more preferably 9.8 or more, more preferably 10.0 or more, more preferably 10.2 or more, more preferably 10.4 or more, more preferably 10.6 or more, more preferably 10.8 or more, more preferably 11.0 or more and / or a ratio [µm / µm] of a / the length of the filler F1 is 1000 or less, preferably 500 or less, more preferably 100 or less, more preferably 50 or less, more preferably 25 or less, more preferably 15 or less, more preferably 12 or less, more preferably 11.0 or less, more preferably 10.8 or less, more preferably 10.6 or less, more preferably 10.4 or less, more preferably 10.2 or less, more preferably 10.0 or less, more preferably 9.8 or less, more preferably 9.6 or less, more preferably 9.4 or less, more preferably 9.2 or less, more preferably 9.0 or less, more preferably 8.8 or less, more preferably 8.6 or less. The inventors recognized that surprisingly if the ratio is in this range, the flame retardancy is improved and, in addition, the mechanical properties ofthe polymer composition PC1 are improved. This is particularly true if the filler F1 is fibers, preferably glass fibers.Especially, if the length and / or, preferably and, thickness of the filler F1 is in the range as specified above and the ratio of the length to the thickness of the filler F1 is in the above described, the mechanical properties and flame retardancy are further improved. The ratio of the length to the thickness of the filler F1 is not particularly limited. Preferably, a ratio [µm / µm] of a / the length Lweight to a / the thickness Tarit of the filler F1 is 0.5 or more, preferably 1.0 or more, more preferably 3.0 or more, more preferably 5.0 or more, more preferably 7.0 or more, more preferably 9.0 or more, more preferably 11.0 or more, more preferably 12.0 or more, more preferably 13.0 or more, more preferably 13.5 or more, more preferably 13.7 or more, more preferably 14.0 or more, more preferably 14.5 or more, more preferably 15.0 or more, more preferably 15.5 or more, more preferably 15.7 or more, more preferably 16.0 or more, more preferably 16.1 or more, more preferably 16.3 or more, more preferably 16.5 or more, more preferably 16.7 or more and / or a ratio [µm / µm] of a / the length Lweightto a / the thickness Taritof the filler F1is 1000 or less, preferably 500 or less, more preferably 100 or less, more preferably 50 or less, more preferably 25 or less, more preferably 17.0 or less, more preferably 16.8 or less, more preferably 16.6 or less, more preferably 16.4 or less, more preferably 16.2 or less, more preferably 16.0 or less, more preferably 15.5 or less, more preferably 15.0 or less, more preferably 14.5 or less, more preferably 14.0 or less, more preferably 13.8 or less, more preferably 13.6 or less, more preferably 13.4 or less, more preferably 13.2 or less, more preferably 13.0 or less, more preferably 12.5 or less. The inventors recognized that surprisingly if the ratio is in this range, the flame retardancy is improved and, in addition, the mechanical properties of the polymer composition PC1 are improved. This is particularly true if the filler F1 is fibers, preferably glass fibers. Especially, if the length and / or, preferably and,thickness of the filler F1 is in the range as specified above and the ratio of the length to the thickness of the fi ller F1 isin the above described, the mechanical properties and flame retardancy are further improved. The content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is not particularly limited. In a preferred embodiment, a content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 5 weight-% or more, preferably 8 weight-% or more, more preferably 10 weight-% or more, more preferably 12 weight-% or more, more preferably 14 weight-% or more, more preferably 16 weight-% or more, more preferably 18 weight-% or more, more preferably 20 weight-% or more, more preferably 25 weight-% or more, more preferably 30 weight-% or more and / or a content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 50 weight-% or less, preferably 40 weight-% or less, more preferably 30 weight-% or less, more preferably 28 weight-% or less, more preferably 26 weight-% or less, more preferably 24 weight-% or less, more preferably 22 weight-% or less, more preferably 20 weight- % or less, more preferably 15 weight-% or less. Thus, the flame retardancy and the mechanical properties are improved. The Young's modulus of the polymer composition PC1 is not particularly limited. Preferably, a Young's modulus of the polymer composition PC1 is 3.0 GPa or more, preferably 4.0 GPa or more, more preferably 4.5 GPa or more, more preferably 5.0 GPa or more, more preferably 5.5 GPa or more, more preferably 5.8 GPa or more, more preferably 5.9 GPa or more, more preferably 6.0 GPa or more, more preferably 6.2 GPa or more, more preferably 6.4 GPa or more, more preferably 6.6 GPa or more and / or a Young's modulus of the polymer composition PC1 is 8 GPa or less, preferably 7.5 GPa or less, more preferably 7.0 GPa or less, more preferably 6.9 GPa or less, more preferably 6.8 GPa or less, more preferably 6.7 GPa or less, more preferably 6.6 GPa or less, more preferably 6.5 GPa or less, more preferably 6.3 GPa or less, more preferably 6.2 GPa or less, more preferably 6.1 GPa or less, more preferably 6.0 GPa or less, more preferably 5.5 GPa or less. If the polymer composition exhibits a Young's modulus in the above described range, the mechanical properties are improved. In a preferred embodiment, the polymer composition PC1 exhibits in the UL-94 test with a 1.6 mm specimen a V-2 classification, more preferably V-1 classification, more preferably V-0 classification. If this parameter is fulfilled, the flame retardancy is improved. In a preferred embodiment, the polymer composition PC1 exhibits in the UL-94 test an afterflame after the first application of the flame of 15 s or less, preferably 13 s or less, more preferably 11 s or less, more preferably 9 s or less, more preferably 7 s or less, more preferably 5 s or less, more preferably 3 s or less, more preferably 2 s or less, more preferably 1 s or less, more preferably 0 s. If this parameter is fulfilled, the flame retardancy is improved. In a preferred embodiment, the polymer composition PC1 exhibits in the UL-94 test an afterflame after the second application of the flame of 15 s or less, preferably 13 s or less, more preferably 11 s or less, more preferably 9 s or less, more preferably 7 s or less, more preferably 5 s or less, more preferably 3 s or less, more preferably 2 s or less, more preferably 1 s or less, more preferably 0 s. If this parameter is fulfilled, the flame retardancy is improved. In a preferred embodiment, the polymer composition PC1 comprises improved flame retardancy, improved mechanical properties and / or improved environmental compatibility. If this parameter is fulfilled, the areas of application of the polymer composition PC1 are extended. In a preferred embodiment, the polymer composition PC1 and / or the mixture M2 does not comprise melamine cyanurate, preferably does not comprise melamine. According to the invention, the object described above is at least partially solved by a method for producing a polymer composition PC1, preferably the polymer composition PC1 described herein, comprising the following steps: mixing a mixture M2 comprising polymer P1 and a mixture M1, preferably and a filler F1, to obtain a polymer composition PC1; wherein the mixture M1 comprises compound A and B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2 and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. In a preferred embodiment, the mixing is performed in an extruder, preferably a twin screw extruder. In a preferred embodiment, a temperature set in the mixing step is Tm of polymer P1 in °C or more, preferably Tm of polymer P1 in °C + 10 °C or more, more preferably Tm of polymer P1 in °C + 20 °C or more, more preferably Tm of polymer P1 in °C + 30 °C or more, more preferably Tm of polymer P1 in °C + 40 °C or more, more preferably Tm of polymer P1 in °C + 50 °C or more, more preferably Tm of polymer P1 in °C + 60 °C or more, more preferably Tm of polymer P1 in °C + 70 °C or more, more preferably Tm of polymer P1 in °C + 80 °C or more, more preferably Tm of polymer P1 in °C + 90 °C or more, more preferably Tm of polymer P1 in °C + 100 °C or more and / or a temperature set in the mixing step is Tm of polymer P1 in °C + 200 °C or less, preferably Tm of polymer P1 in °C + 150 °C or less, preferably Tm of polymer P1 in °C + 100 °C or less, preferably Tm of polymer P1 in °C + 90 °C or less, preferably Tm of polymer P1 in °C + 80 °C or less. Thus, the mechanical properties and flame retardancy are improved. In a preferred embodiment, a throughput of polymer P1 in the mixing step, preferably in the extruder, is 100 kg / h or more, preferably 500 kg / h or more, more preferably 1000 kg / h or more, more preferably 2500 kg / h or more, more preferably 5000 kg / h or more and / or a throughput of polymer P1 in the mixing step, preferably in the extruder, is 10000 kg / h or less, preferably 8000 kg / h or less, more preferably 5000 kg / h or less. Thus, the mechanical properties are improved. In a preferred embodiment, a residence time in the mixing step, preferably a residence time in the extruder, is 10 s or more, preferably 20 s or more, more preferably 30 s or more, more preferably 45 s or more, more preferably 60 s or more, more preferably 90 s or more, more preferably 120 s or more, more preferably 150 s or more, more preferably 180 s or more, more preferably 240 s or more and / or a residence time in the mixing step, preferably a residence time in the extruder, is 10000 s or less, preferably 5000 s or less, more preferably 2500 s or less, more preferably 2000 s or less, more preferably 1500 s or less, more preferably 1000 s or less, more preferably 500 s or less, more preferably 400 s or less, more preferably 300 s or less, more preferably 200 s or less, more preferably 180 s or less, more preferably 150 s or less, more preferably 120 s or less, more preferably 90 s or less, more preferably 60 s or less, more preferably 45 s or less. Thus, the mechanical properties and flame retardancy are improved. The object described above is further solved by a method comprising one or more of the steps described herein and the following step: converting, preferably molding, the polymer composition PC1 described herein and / or obtainable by or obtained by the method described herein to obtain a polymer product PP1. In a preferred embodiment, the polymer composition PC1 and / or the mixture M2 comprises, preferably consist of, polymer P1, mixture M1, preferably filler F1, and preferably one or more additive(s) A1; preferably wherein the polymer composition PC1 and / or the mixture M2 comprises, preferably consist of, in weight-%: 1 to 99, preferably 50 to 90, more preferably 60 to 80, polymer P1, 1 to 30, preferably 2 to 20, more preferably 4 to 12 mixture M1, 0 to 50 preferably 5 to 40, more preferably 15 to 30 filler F1, and 0 to 30, preferably 0 to 10, more preferably 0.3 to 5 one or more additive(s) A1. Thus, the mechanical properties and flame retardancy are improved. In a preferred embodiment, the one or more additive(s) A1 is / are selected from antioxidating agent(s), stabilizer(s), lubricant(s), mineral(s), chain extender(s), impact modifier(s), colorant(s), pigment(s), soot(s), carbon black(s), talc(s), and mixtures thereof. The object described above is further solved by a polymer product PP1 comprising the polymer composition PC1 described herein and / or obtained by or obtainable by the method described herein. In a preferred embodiment, the polymer composition PC1 and / or the polymer product PP1 is / are or is / are a part of: - a part of a car; preferably cylinder head cover, engine cover, housing for charge air cooler, charge air cooler flap, intake pipe, intake manifold, connector, gear wheel, fan wheel, cooling water box, housing, housing part for heat exchanger, coolant cooler, charge air cooler, thermostat, water pump, radiator, fastening part, part of battery system for electromobility, dashboard, steering column switch, seat, headrest, center console, transmission component, door module, A, B, C or D pillar cover, spoiler, door handle, exterior mirror, windscreen wiper, windscreen wiper protection housing, decorative grill, cover strip, roof rail, window frame, sunroof frame, antenna panel, headlight and taillight, engine cover, cylinder head cover, intake manifold, airbag, cushion, or coating; - a cloth; preferably shirt, trousers, pullover, boot, shoe, shoe sole, tight or jacket; - an electrical part; preferably electrical or electronic passive or active component, circuit board, printed circuit board, housing component, foil, line, switch, plug, socket, distributor, relay, resistor, capacitor, inductor, bobbin, lamp, diode, LED, transistor, connector, regulator, integrated circuit (IC), processor, controller, memory, sensor, microswitch, microbutton, semiconductor, reflector housing for light-emitting diodes (LED), fastener for electrical or electronic component, spacer, bolt, strip, slide-in guide, screw, nut, film hinge, snap hook (snap-in), or spring tongue; - a consumer, agricultural product or pharmaceutical product; preferably tennis string, climbing rope, bristle, brush, artificial grass, 3D printing filament, grass trimmer, zipper, hook and loop fastener, paper machine clothing, extrusion coating, fishing line, fishing net, offshore line and rope, vial, syringe, ampoule, bottle, sliding element, spindle nut, chain conveyor, plain bearing, roller, wheel, gear, roller, ring gear, screw and spring dampers, hose, pipeline, cable sheathing, socket, switch, cable tie, fan wheel, carpet, box or bottle for cosmetics, mattress, cushion, insulation, detergent, dishwasher tabs or powder, shampoo, body wash, shower gel, soap, fertilizer, fungicide, or pesticide; - a packaging for the food industry; preferably mono- or multi-layer blown film, cast film (mono- or multi-layer), biaxially stretched film, or laminating film; or - a part of a construction; preferably a rotor blade, insulating material, frame, housing, wall, coating, or separating wall. Further, the object is at least partially solved by a use of the polymer composition PC1 as described herein and / or polymer product PP1 as described herein in a recycling process, preferably mechanical recycling or chemically recycling process, more preferably depolymerization, gasification and / or pyrolysis process. In a preferred embodiment, the polymer composition PC1 and / or the mixture M2 does not comprise melem cyanurate, preferably melem; and / or acetoguanamine cyanurate, preferably acetoguanamine; and / or benzoguanamine cyanurate, preferably benzoguanamine. In a preferred embodiment, a content of the mixture M1 in the polymer composition PC1 and / or the mixture M2 is 1 weight-% or more, preferably 3 weight-% or more, more preferably 5 weight-% or more, more preferably 8 weight-% or more, more preferably 10 weight-% or more, more preferably 12 weight-% or more; and / or a content of the mixture M1 in the polymer composition PC1 and / or the mixture M2 is 30 weight-% or less, preferably 25 weight-% or less, more preferably 20 weight-% or less, more preferably 15 weight-% or less, more preferably 12 weight-% or less, more preferably 10 weight-% or less. Thus, the flame retardancy is improved and the toxicity of the polymer composition is decreased. In a preferred embodiment, the polymer composition PC1 and / or mixture M2 does not comprise chopped glass fibers. Thus, the flame retardancy is improved. In a preferred embodiment, the polymer composition PC1 and / or mixture M2 does not contain more than 30 weight-%, preferably 20 weight-%, more preferably 10 weight-%, more preferably 5 weight-%, more preferably 3 weight-%, more preferably 2 weight-%, more preferably 1 weight-%, of other polymers except polymer P1, preferably contains no other polymer except polymer P1. Thus, the flame retardancy is improved. Methods and Definitions If not further specified, preferably the following methods are used, and definitions apply. Herein, triazine is a six-membered ring comprising alternate N-atoms and C-atoms and wherein the ring exhibits connected p-orbitals with delocalized electrons. Preferably, triazine is a substituted or unsubstituted 1,3,5-triazine, more preferably a substituted 1,3,5-triazine. Glass transition temperature Tg and melting temperature Tm are preferably determined as follows: Tm and Tg are measured with DSC. DSC measurements are done according to DIN EN ISO 11357 using heat / cooling rate of 20K / min, preferably in a temperature range of 0 to 280°C, on a Perkin Elmer DSC 8000. Young's modulus is preferably determined as follows: Injection molding is done to produce tensile bares that are used for tensile testing according to ISO 527-1 / -2. Tensile bars are injection molded at Arburg 470H at a mass temperature of 270°C and a mold temperature of approx.80°C. Glass fiber length are preferably determined as follows: First, the polymer compound comprising the glass fibers is pyrolyzed at 650°C for 1.5 h to obtain the glass fibers. Then, a tip of a spatula (about 5 mg) glass fibers are dispersed in a mixture of 100 mL water and 2 drops of glycerin and transferred to a petri dish, which is placed on the surface of an Epson perfection V850 Pro flatbed scanner. This type of scanner is able to analyze the length of about 80000 fibers at the same time. Fibers shorter than 21.2 µm cannot be detected due to the limited resolution of the scanner. Thus, fibers being shorter than 21.2 µm are not considered. Glass fiber thickness is preferably determined as follows: First, the polymer compound comprising the glass fibers is pyrolyzed at 650°C for 1.5 h to obtain the glass fibers. Then, a tip of a spatula (about 5 mg) glass fibers are dispersed in a mixture of 100 mL water and 2 drops of glycerin and transferred to a petri dish, which is placed under a microscope. The diameter of ten distinct glass fibers is measured electronically by an image capture system (by Company Zeiss). The average value of ten glass fibers is regarded as glass fiber thickness. Calculation of the value(s): length of the glass fibers Larit = (Ltotal) / (Larit); wherein Ltotal is the sum of the length of all fibers, and wherein Laritis the sum of all fibers. length of the glass fibers Lweight= (Ltotal) / (Lweight); wherein Ltotalis the sum of the length of all fibers, and wherein Lweightis the sum of the length of all fibers. thickness of the glass fibers Tarit= (Ttotal) / (Tarit); wherein Ttotalis the sum of the thickness of all fibers, and wherein Taritis the sum of the thickness of all fibers. The decomposition temperature is preferably determined as follows: The decomposition temperature is determined using TGA. The thermogravimetric analysis (TGA) was measured in accordance to ISO11358-1^using^the^device^“TGA^ Q5000IR”^by^TA^instruments.^3^to^6^mg, preferably 5 mg, of the sample is filled into the specimen holder. Purge gas, nitrogen with a purity of 99,999% is used to flush the sample chamber with 25 ml / min before and throughout the measurement. Then the test specimen is heated at specified rates of 20 K / min with a controlled temperature programfrom 40°C to 600°C and the change in mass is measured as a function of temperature. The thermogravimetry dataobtained is displayed in a graph of mass versus temperature (see for example the graph of melamine cyanurate; Figure 1;). The decomposition temperature is determined from the derivative of this graph and is the temperature at the maximum of the derivative. (see Figure 1, determination of the decomposition temperature [°C] of melamine cyanurate). UL94-Testing incl. determination of afterflame time is preferably determined as follows: The flame retardancy of the molded compositions is determined using the UL94V method (Underwriters Laboratories Inc. Standard of Safety, "Test for Flammability of Plastic Materials for Parts in Devices and Appliances", p. 14 to p. 18 Northbrook 1998). A bar- shaped test specimen of 1.6 mm thickness is used. A laboratory burner is vertically applied twice for 10 sec each to the test specimen and the afterflame time in seconds is determined for the first and second application (= afterf. sec (1st / 2nd)). Weight average molecular weight Mw is determined as follows: An Agilent 1100 Series is used as an integrated instrument, including 2x PL HFIPgel 300x7,5mm + 1 HFIP-LG Guard 50x7,5mm as well as a DRI Agilent 1100 detector. All calibrations are carried out using PMMA standards with molecular weights between 800 g / mol and 2200000 g / mol purchased from Polymer Standards Service. Flow is 1 ml / min Sample concentration is 1.5 mg / mL. Eluent is HFIP + 0.05% potassium trifluoroacetate. The viscosity number VN is preferably determined as follows: The viscosity number of the thermoplastic polyamide in ml / g is determined as 0.5 wt% solution in 96 wt% sulfuric acid at 25°C according to ISO 307:2019. In summary, embodiments and preferred embodiments are the following items. The scope of protection is defined by the claims. The combination of two or more embodiments, e.g. 3, 4 or 8 items is further preferred. In addition, if not stated otherwise, definitions and general statements herein referring to the polymer composition PC1 also apply for the polymer product PP1, method and use, and vice versa. Definitions and general statements herein preferably also apply for the following items and preferred embodiments. Preferably, the steps described in the items below areconducted, if present in the claims, in the order of the items below.1. Polymer composition PC1, comprising: a polymer P1, a mixture M1 comprising a compound A and a compound B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2 and a moiety containing 1 to 20 carbon atoms; and preferably a filler F1; and preferably wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. Use of a mixture M1 comprising a compound A and a compound B as additive, preferably as flame retardant and / or modifier, in a polymer composition PC1, preferably the polymer composition PC1 according to item 1, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2 and a moiety containing 1 to 20 carbon atoms; and preferably wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. Use of a mixture M1 comprising a compound A and a compound B as additive, preferably as flame retardant and / or modifier, in a polymer composition PC1 comprising a filler F1, preferably the polymer composition PC1 according to item 1, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and preferably wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. 4. Method for producing a polymer composition PC1, preferably a polymer composition PC1 according to item 1, comprising the following steps: mixing a mixture M2 comprising polymer P1 and a mixture M1, preferably and a filler F1, to obtain a / the polymer composition PC1; wherein the mixture M1 comprises compound A and B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1): (1), wherein R1 to R3 are independently selected from H, OH, CN, NH2 and a moiety containing 1 to 20 carbon atoms; and preferably wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less. 5. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer P1 is a thermoplastic polymer, preferably polyamide (PA); preferably PA 6 or PA 66; or thermoplastic polyurethane (TPU), more preferably a polyamide (PA); preferably PA 6 or PA 66; more preferably PA 6. 6. Polymer composition PC1, use or method according to any one of the preceding items, wherein a content of the polymer P1 in the polymer composition PC1 and / or the mixture M2 is 25 weight-% or more, preferably 30 weight-% or more, more preferably 40 weight-% or more, more preferably 50 weight-% or more, more preferably 60 weight-% or more, more preferably 65 weight-% or more, more preferably 70 weight-% or more, more preferably 75 weight-% or more, more preferably 80 weight-% or more, more preferably 90 weight-% or more. 7. Polymer composition PC1, use or method according to any one of the preceding items, wherein a content of the polymer P1 in the polymer composition PC1 and / or the mixture M2 is 99 weight-% or less, preferably 95 weight-% or less, more preferably 90 weight-% or less, more preferably 85 weight-% or less, more preferably 80 weight-% or less, more preferably 75 weight-% or less, more preferably 70 weight-% or less, more preferably 65 weight-% or less, more preferably 60 weight-% or less. 8. Polymer composition PC1, use or method according to any one of the preceding items, wherein a Tm of the polymer P1 is 150°C or more, preferably 175°C or more, more preferably 190°C or more, more preferably 200°C or more, more preferably 210°C or more, more preferably 220°C or more, more preferably 230°C or more, more preferably 240°C or more, more preferably 250°C or more, more preferably 260°C or more. Polymer composition PC1, use or method according to any one of the preceding items, wherein a Tm of the polymer P1 is 400°C or less, preferably 350°C or less, more preferably 325°C or less, more preferably 300°C or less, more preferably 290°C or less, more preferably 280°C or less, more preferably 270°C or less, more preferably 260°C or less. Polymer composition PC1, use or method according to any one of the preceding items, wherein a Tg of the polymer P1 is 10°C or more, preferably 20°C or more, more preferably 30°C or more, more preferably 40°C or more, more preferably 50°C or more, more preferably 60°C or more. Polymer composition PC1, use or method according to any one of the preceding items, wherein a Tg of the polymer P1 is 80°C or less, preferably 70 °C or less, more preferably 60 °C or less, more preferably 50 °C or less, more preferably 40 °C or less, more preferably 30 °C or less. Polymer composition PC1, use or method according to any one of the preceding items, wherein a weight average molecular weight Mw of the polymer P1 is 3*105g / mol or more, preferably 4*105g / mol or more, more preferably 5*105g / mol or more, more preferably 6*105g / mol or more, more preferably 7*105g / mol or more, more preferably 8*105g / mol or more, more preferably 9*105g / mol or more. Polymer composition PC1, use or method according to any one of the preceding items, wherein a weight average molecular weight Mw of the polymer P1 is 10*105g / mol or less, preferably 9*105g / mol or less, more preferably 8*105g / mol or less, more preferably 7*105g / mol or less, more preferably 6*105g / mol or less, more preferably 5*105g / mol or less, more preferably 4*105g / mol or less. Polymer composition PC1, use or method according to any one of the preceding items, wherein a viscosity number VN of the polymer P1 is 40 ml / g or more, preferably 60 ml / g or more, more preferably 80 ml / g or more, more preferably 100 ml / g or more, more preferably 120 ml / g or more, more preferably 140 ml / g or more, more preferably 160 ml / g or more. Polymer composition PC1, use or method according to any one of the preceding items, wherein a viscosity number of the polymer P1 is 300 ml / g or less, preferably 250 ml / g or less, more preferably 230 ml / g or less, more preferably 210 ml / g or less, more preferably 190 ml / g or less, more preferably 170 ml / g or less, more preferably 150 ml / g or less, more preferably 130 ml / g or less. 16. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises the following binding motive: ,.17. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A is melam, melem, benzoguanamine, ammeline, ammelide, acetoguanamine or mixtures thereof, preferably melem, melam, benzoguanamine, acetoguanamine or mixtures thereof, more preferably melem, melam or mixtures thereof, more preferably melem or melam, more preferably melam. 18. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises, preferably consists of, melam. 19. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises, preferably consists of, melem. 20. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises, preferably consists of, benzoguanamine. 21. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises, preferably consists of, ammeline. 22. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises, preferably consists of, ammelide. 23. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises, preferably consists of, acetoguanamine. 24. Polymer composition PC1, use or method according to any one of the preceding items, wherein R1 to R3 are independently selected from H, OH and C1-C4 alkyl, preferably H, OH and methyl. 25. Polymer composition PC1, use or method according to any one of the preceding items, wherein compound B is cyanurate. 26. Polymer composition PC1, use or method according to any one of the preceding items, wherein a ratio of compound A to compound B is 0.5 or more, preferably 0.6 or more, more preferably 0.7 or more, more preferably 0.8 or more, more preferably 0.9 or more, more preferably 1.0 or more, more preferably 1.1 or more, more preferably 1.2 or more, more preferably 1.3 or more, more preferably 1.4 or more, more preferably 1.5 or more.27. Polymer composition PC1, use or method according to any one of the preceding items, wherein a ratio of compound B to compound A is 0.5 or more, preferably 0.6 or more, more preferably 0.7 or more, more preferably 0.8 or more, more preferably 0.9 or more, more preferably 1.0 or more, more preferably 1.1 or more, more preferably 1.2 or more, more preferably 1.3 or more, more preferably 1.4 or more, more preferably 1.5 or more.28. Polymer composition PC1, use or method according to any one of the preceding items, wherein the decomposition temperature of mixture M1 is 150 °C or more, preferably 200°C or more, more preferably 250°C or more, more preferably 290°C or more, more preferably 310°C or more, more preferably 330°C or more, more preferably 350°C or more, more preferably 370°C or more, more preferably 390°C or more, more preferably 410°C or more, more preferably 430°C or more. 29. Polymer composition PC1, use or method according to any one of the preceding items, wherein the decomposition temperature of mixture M1 is 450 °C or less, preferably 445°C or less, more preferably 440°C or less, more preferably 420°C or less, more preferably 400°C or less, more preferably 380°C or less, more preferably 360°C or less, more preferably 340°C or less, more preferably 320°C or less. 30. Polymer composition PC1, use or method according to any one of the preceding items, wherein the mixture M1 comprises, preferably consists of, melamcyanurat, melemcyanurat, benzoguanamincyanurat, ammelincyanurat, ammelidcyanurat, acetoguanamincyanurat or mixtures thereof, preferably melamcyanurat, melemcyanurat, benzoguanamincyanurat, acetoguanamincyanurat or mixtures thereof, more preferably melamcyanurat, melemcyanurat or mixtures thereof, more preferably melamcyanurat. 31. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 comprises a filler F1. 32. Polymer composition PC1, use or method according to any one of the preceding items, wherein the filler F1 is fibers or beads, preferably fibers, more preferably milled glass fibers. Polymer composition PC1, use or method according to any one of the preceding items, wherein the filler F1 ismade of glass, preferably is glass fibers, glass beads or a mixture thereof, more preferably is glass fibers.Polymer composition PC1, use or method according to any one of the preceding items, wherein a length Larit of the filler F1 is 40 µm or more, preferably 50 µm or more, more preferably 60 µm or more, more preferably 70 µm or more, more preferably 80 µm or more, more preferably 90 µm or more, more preferably 95 µm or more, more preferably 100 µm or more, more preferably 105 µm or more, more preferably 110 µm or more, more preferably 120 µm or more, more preferably 130 µm or more, more preferably 140 µm or more, more preferably 150 µm or more. Polymer composition PC1, use or method according to any one of the preceding items, wherein a length Laritof the filler F1 is 20.00 mm or less, preferably 10.00 mm or less, more preferably 1.00 mm or less, more preferably 800 µm or less, more preferably 600 µm or less, more preferably 400 µm or less, more preferably 200 µm or less, more preferably 150 µm or less, more preferably 140 µm or less, more preferably 130 µm or less, more preferably 120 µm or less, more preferably 110 µm or less, more preferably 105 µm or less, more preferably 100 µm or less, more preferably 95 µm or less, more preferably 85 µm or less, more preferably 75 µm or less, more preferably 65 µm or less. Polymer composition PC1, use or method according to any one of the preceding items, wherein a length Lweight of the filler F1 is 40 µm or more, preferably 50 µm or more, more preferably 60 µm or more, more preferably 70 µm or more, more preferably 80 µm or more, more preferably 90 µm or more, more preferably 95 µm or more, more preferably 100 µm or more, more preferably 105 µm or more, more preferably 110 µm or more, more preferably 120 µm or more, more preferably 130 µm or more, more preferably 140 µm or more, more preferably 150 µm or more, more preferably 160 µm or more, more preferably 170 µm or more, more preferably 180 µm or more, more preferably 190 µm or more, more preferably 200 µm or more, more preferably 210 µm or more, more preferably 220 µm or more. Polymer composition PC1, use or method according to any one of the preceding items, wherein a length Lweightof the filler F1 is 20.00 mm or less, preferably 10.00 mm or less, more preferably 1.00 mm or less, more preferably 800 µm or less, more preferably 600 µm or less, more preferably 400 µm or less, more preferably 300 µm or less, more preferably 240 µm or less, more preferably 230 µm or less, more preferably 220 µm or less, more preferably 210 µm or less, more preferably 200 µm or less, more preferably 190 µm or less, more preferably 180 µm or less, more preferably 170 µm or less, more preferably 160 µm or less, more preferably 150 µm or less, more preferably 140 µm or less, more preferably 130 µm or less, more preferably 120 µm or less, more preferably 110 µm or less, more preferably 105 µm or less, more preferably 100 µm or less, more preferably 95 µm or less, more preferably 85 µm or less. 38. Polymer composition PC1, use or method according to any one of the preceding items, wherein a thickness Taritof the filler F1 is 2.0 µm or more, preferably 4.0 µm or more, more preferably 6.0 µm or more, more preferably 8.0 µm or more, more preferably 10.0 µm or more, more preferably 10.1 µm or more, more preferably 10.3 µm or more, more preferably 10.5 µm or more, more preferably 10.7 µm or more, more preferably 10.9 µm or more, more preferably 11.0 µm or more, more preferably 11.1 µm or more, more preferably 11.3 µm or more, more preferably 11.5 µm or more, more preferably 11.7 µm or more, more preferably 11.9 µm or more, more preferably 12.0 µm or more, more preferably 14.0 µm or more. 39. Polymer composition PC1, use or method according to any one of the preceding items, wherein a thickness Tarit of the filler F1 is 40.0 µm or less, preferably 30.0 µm or less, more preferably 25.0 µm or less, more preferably 20.0 µm or less, more preferably 15.0 µm or less, more preferably 14.0 µm or less, more preferably 13.5 µm or less, more preferably 13.0 µm or less, more preferably 12.5 µm or less, more preferably 12.0 µm or less, more preferably 11.8 µm or less, more preferably 11.6 µm or less, more preferably 11.4 µm or less, more preferably 11.2 µm or less, more preferably 11.0 µm or less, more preferably 10.8 µm or less, more preferably 10.6 µm or less, more preferably 10.4 µm or less, more preferably 10.2 µm or less, more preferably 10.0 µm or less. 40. Polymer composition PC1, use or method according to any one of the preceding items, wherein a ratio [µm / µm] of a / the length Larit to a / the thickness Tarit of the filler F1 is 0.5 or more, preferably 1.0 or more, more preferably 3.0 or more, more preferably 5.0 or more, more preferably 7.0 or more, more preferably 9.0 or more, more preferably 9.2 or more, more preferably 9.4 or more, more preferably 9.6 or more, more preferably 9.8 or more, more preferably 10.0 or more, more preferably 10.2 or more, more preferably 10.4 or more, more preferably 10.6 or more, more preferably 10.8 or more, more preferably 11.0 or more. 41. Polymer composition PC1, use or method according to any one of the preceding items, wherein a ratio [µm / µm] of a / the length Laritto a / the thickness Taritof the filler F1 is 1000 or less, preferably 500 or less, more preferably 100 or less, more preferably 50 or less, more preferably 25 or less, more preferably 15 or less, more preferably 12 or less, more preferably 11.0 or less, more preferably 10.8 or less, more preferably 10.6 or less, more preferably 10.4 or less, more preferably 10.2 or less, more preferably 10.0 or less, more preferably 9.8 or less, more preferably 9.6 or less, more preferably 9.4 or less, more preferably 9.2 or less, more preferably 9.0 or less, more preferably 8.8 or less, more preferably 8.6 or less. 42. Polymer composition PC1, use or method according to any one of the preceding items, wherein a ratio [µm / µm] of a / the length Lweightto a / the thickness Taritof the filler F1 is 0.5 or more, preferably 1.0 or more, more preferably 3.0 or more, more preferably 5.0 or more, more preferably 7.0 or more, more preferably 9.0 or more, more preferably 11.0 or more, more preferably 12.0 or more, more preferably 13.0 or more, more preferably 13.5 or more, more preferably 13.7 or more, more preferably 14.0 or more, more preferably 14.5 or more, more preferably 15.0 or more, more preferably 15.5 or more, more preferably 15.7 or more, more preferably 16.0 or more, more preferably 16.1 or more, more preferably 16.3 or more, more preferably 16.5 or more, more preferably 16.7 or more. 43. Polymer composition PC1, use or method according to any one of the preceding items, wherein a ratio [µm / µm] of a / the length Lweight to a / the thickness Tarit of the filler F1is 1000 or less, preferably 500 or less, more preferably 100 or less, more preferably 50 or less, more preferably 25 or less, more preferably 17.0 or less, more preferably 16.8 or less, more preferably 16.6 or less, more preferably 16.4 or less, more preferably 16.2 or less, more preferably 16.0 or less, more preferably 15.5 or less, more preferably 15.0 or less, more preferably 14.5 or less, more preferably 14.0 or less, more preferably 13.8 or less, more preferably 13.6 or less, more preferably 13.4 or less, more preferably 13.2 or less, more preferably 13.0 or less, more preferably 12.5 or less. 44. Polymer composition PC1, use or method according to any one of the preceding items, wherein a content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 5 weight-% or more, preferably 8 weight- % or more, more preferably 10 weight-% or more, more preferably 12 weight-% or more, more preferably 14 weight-% or more, more preferably 16 weight-% or more, more preferably 18 weight-% or more, more preferably 20 weight-% or more, more preferably 25 weight-% or more, more preferably 30 weight-% or more. 45. Polymer composition PC1, use or method according to any one of the preceding items, wherein a content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 50 weight-% or less, preferably 40 weight- % or less, more preferably 30 weight-% or less, more preferably 28 weight-% or less, more preferably 26 weight- % or less, more preferably 24 weight-% or less, more preferably 22 weight-% or less, more preferably 20 weight- % or less, more preferably 15 weight-% or less. 46. Polymer composition PC1, use or method according to any one of the preceding items, wherein a Young's modulus of the polymer composition PC1 is 3.0 GPa or more, preferably 4.0 GPa or more, more preferably 4.5 GPa or more, more preferably 5.0 GPa or more, more preferably 5.5 GPa or more, more preferably 5.8 GPa or more, more preferably 5.9 GPa or more, more preferably 6.0 GPa or more, more preferably 6.2 GPa or more, more preferably 6.4 GPa or more, more preferably 6.6 GPa or more. 47. Polymer composition PC1, use or method according to any one of the preceding items, wherein a Young's modulus of the polymer composition PC1 is 8 GPa or less, preferably 7.5 GPa or less, more preferably 7.0 GPa or less, more preferably 6.9 GPa or less, more preferably 6.8 GPa or less, more preferably 6.7 GPa or less, more preferably 6.6 GPa or less, more preferably 6.5 GPa or less, more preferably 6.3 GPa or less, more preferably 6.2 GPa or less, more preferably 6.1 GPa or less, more preferably 6.0 GPa or less, more preferably 5.5 GPa or less. 48. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 exhibits in the UL-94 test with a 1.6 mm specimen a V-2 classification, more preferably V-1 classification, more preferably V-0 classification. 49. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 exhibits in the UL-94 test an afterflame after the first application of the flame of 15 s or less, preferably 13 s or less, more preferably 11 s or less, more preferably 9 s or less, more preferably 7 s or less, more preferably 5 s or less, more preferably 3 s or less, more preferably 2 s or less, more preferably 1 s or less, more preferably 0 s. 50. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 exhibits in the UL-94 test an afterflame after the second application of the flame of 15 s or less, preferably 13 s or less, more preferably 11 s or less, more preferably 9 s or less, more preferably 7 s or less, more preferably 5 s or less, more preferably 3 s or less, more preferably 2 s or less, more preferably 1 s or less, more preferably 0 s. 51. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 comprises improved flame retardancy, improved mechanical properties and / or improved environmental compatibility. 52. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 does not comprise melamine cyanurate, preferably does not comprise melamine. 53. Polymer composition PC1, use or method according to any one of the preceding items, wherein the mixing is performed in an extruder, preferably a twin screw extruder. 54. Polymer composition PC1, use or method according to any one of the preceding items, wherein a temperature set in the mixing step is Tm of polymer P1 in °C or more, preferably Tm of polymer P1 in °C + 10 °C or more, more preferably Tm of polymer P1 in °C + 20 °C or more, more preferably Tm of polymer P1 in °C + 30 °C or more, more preferably Tm of polymer P1 in °C + 40 °C or more, more preferably Tm of polymer P1 in °C + 50 °C or more, more preferably Tm of polymer P1 in °C + 60 °C or more, more preferably Tm of polymer P1 in °C + 70 °C or more, more preferably Tm of polymer P1 in °C + 80 °C or more, more preferably Tm of polymer P1 in °C + 90 °C or more, more preferably Tm of polymer P1 in °C + 100 °C or more. 55. Polymer composition PC1, use or method according to any one of the preceding items, wherein a temperature set in the mixing step is Tm of polymer P1 in °C + 200 °C or less, preferably Tm of polymer P1 in °C + 150 °C or less, preferably Tm of polymer P1 in °C + 100 °C or less, preferably Tm of polymer P1 in °C + 90 °C or less, preferably Tm of polymer P1 in °C + 80 °C or less. 56. Polymer composition PC1, use or method according to any one of the preceding items, wherein a throughput of polymer P1 in the mixing step, preferably in the extruder, is 100 kg / h or more, preferably 500 kg / h or more, more preferably 1000 kg / h or more, more preferably 2500 kg / h or more, more preferably 5000 kg / h or more. 57. Polymer composition PC1, use or method according to any one of the preceding items, wherein a throughput of polymer P1 in the mixing step, preferably in the extruder, is 10000 kg / h or less, preferably 8000 kg / h or less, more preferably 5000 kg / h or less. 58. Polymer composition PC1, use or method according to any one of the preceding items, wherein a residence time in the mixing step, preferably a residence time in the extruder, is 10 s or more, preferably 20 s or more, more preferably 30 s or more, more preferably 45 s or more, more preferably 60 s or more, more preferably 90 s or more, more preferably 120 s or more, more preferably 150 s or more, more preferably 180 s or more, more preferably 240 s or more. 59. Polymer composition PC1, use or method according to any one of the preceding items, wherein a residence time in the mixing step, preferably a residence time in the extruder, is 10000 s or less, preferably 5000 s or less, more preferably 2500 s or less, more preferably 2000 s or less, more preferably 1500 s or less, more preferably 1000 s or less, more preferably 500 s or less, more preferably 400 s or less, more preferably 300 s or less, more preferably 200 s or less, more preferably 180 s or less, more preferably 150 s or less, more preferably 120 s or less, more preferably 90 s or less, more preferably 60 s or less, more preferably 45 s or less. 60. Polymer composition PC1, use or method, preferably according to any one of the preceding items, wherein the method comprises the following step: converting, preferably molding, the polymer composition PC1 according to any one of the preceding items and / or obtainable by or obtained by the method according to any one of the preceding items to obtain a polymer product PP1. 61. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or mixture M2 comprises, preferably consist of, polymer P1, mixture M1, preferably filler F1, and preferably one or more additive(s) A1; preferably wherein the polymer composition PC1 and / or mixture M2 comprises, preferably consist of, in weight-%: 1 to 99, preferably 50 to 90, more preferably 60 to 80, polymer P1, 1 to 30, preferably 2 to 20, more preferably 4 to 12 mixture M1, 0 to 50 preferably 5 to 40, more preferably 15 to 30 filler F1, and 0 to 30, preferably 0 to 10, more preferably 0.3 to 5 one or more additive(s) A1. 62. Polymer composition PC1, use or method according to any one of the preceding items, wherein the one or more additive(s) A1 is / are selected from antioxidating agent(s), stabilizer(s), lubricant(s), mineral(s), chain extender(s), impact modifier(s), colorant(s), pigment(s), soot(s), carbon black(s), talc(s), and mixtures thereof.63. Polymer product PP1 comprising the polymer composition PC1 according to any one of the preceding items and / or obtainable by or obtained by the method according to any one of the preceding items. 64. Polymer composition PC1, polymer product PP1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the polymer product PP1 is / are or is / are a part of: - a part of a car; preferably cylinder head cover, engine cover, housing for charge air cooler, charge air cooler flap, intake pipe, intake manifold, connector, gear wheel, fan wheel, cooling water box, housing, housing part for heat exchanger, coolant cooler, charge air cooler, thermostat, water pump, radiator, fastening part, part of battery system for electromobility, dashboard, steering column switch, seat, headrest, center console, transmission component, door module, A, B, C or D pillar cover, spoiler, door handle, exterior mirror, windscreen wiper, windscreen wiper protection housing, decorative grill, cover strip, roof rail, window frame, sunroof frame, antenna panel, headlight and taillight, engine cover, cylinder head cover, intake manifold, airbag, cushion, or coating; - a cloth; preferably shirt, trousers, pullover, boot, shoe, shoe sole, tight or jacket; - an electrical part; preferably electrical or electronic passive or active component, circuit board, printed circuit board, housing component, foil, line, switch, plug, socket, distributor, relay, resistor, capacitor, inductor, bobbin, lamp, diode, LED, transistor, connector, regulator, integrated circuit (IC), processor, controller, memory, sensor, microswitch, microbutton, semiconductor, reflector housing for light-emitting diodes (LED), fastener for electrical or electronic component, spacer, bolt, strip, slide-in guide, screw, nut, film hinge, snap hook (snap-in), or spring tongue; - a consumer, agricultural product or pharmaceutical product; preferably tennis string, climbing rope, bristle, brush, artificial grass, 3D printing filament, grass trimmer, zipper, hook and loop fastener, paper machine clothing, extrusion coating, fishing line, fishing net, offshore line and rope, vial, syringe, ampoule, bottle, sliding element, spindle nut, chain conveyor, plain bearing, roller, wheel, gear, roller, ring gear, screw and spring dampers, hose, pipeline, cable sheathing, socket, switch, cable tie, fan wheel, carpet, box or bottle for cosmetics, mattress, cushion, insulation, detergent, dishwasher tabs or powder, shampoo, body wash, shower gel, soap, fertilizer, fungicide, or pesticide; - a packaging for the food industry; preferably mono- or multi-layer blown film, cast film (mono- or multi- layer), biaxially stretched film, or laminating film; or - a part of a construction; preferably a rotor blade, insulating material, frame, housing, wall, coating, or separating wall. 65. Use of the polymer composition PC1 according to any one of the preceding items and / or polymer product PP1 according to any one of the preceding items in a recycling process, preferably mechanical recycling or chemically recycling process, more preferably depolymerization, gasification and / or pyrolysis process. 66. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 does not comprise melem cyanurate, preferably does not comprise melem. 67. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 does not comprise acetoguanamine cyanurate, preferably does not comprise acetoguanamine. 68. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 does not comprise benzoguanamine cyanurate, preferably does not comprise benzoguanamine. 69. Polymer composition PC1, use or method according to any one of the preceding items, wherein a content of the mixture M1 in the polymer composition PC1 and / or the mixture M2 is 1 weight-% or more, preferably 3 weight-% or more, more preferably 5 weight-% or more, more preferably 8 weight-% or more, more preferably 10 weight-% or more, more preferably 12 weight-% or more. 70. Polymer composition PC1, use or method according to any one of the preceding items, wherein a content of the mixture M1 in the polymer composition PC1 and / or the mixture M2 is 30 weight-% or less, preferably 25 weight-% or less, more preferably 20 weight-% or less, more preferably 15 weight-% or less, more preferably 12 weight-% or less, more preferably 10 weight-% or less. 71. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or mixture M2 does not comprise chopped glass fibers. 72. Polymer composition PC1, use or method according to any one of the preceding items, wherein the polymer composition PC1 and / or mixture M2 does not contain more than 30 weight-%, preferably 20 weight-%, more preferably 10 weight-%, more preferably 5 weight-%, more preferably 3 weight-%, more preferably 2 weight-%, more preferably 1 weight-%, of other polymers except polymer P1, preferably contains no other polymer except polymer P1. 72. Polymer composition PC1, use or method according to any one of the preceding items, wherein the decomposition temperature is measured as disclosed in the description. Examples The invention is further illustrated by the following examples. Polymer 1: PA6 (ULT B27, BASF) Polymer 2: TPU (Elastollan 1185 A, BASF) Flame retardant 1: Melamincyanurat (1:1, synthesized according to procedure 1) Flame retardant 2: Melamcyanurat (1:1, synthesized according to procedure 2) Flame retardant 3: Melemcyanurat (1:1, synthesized according to procedure 3) Flame retardant 4: Benzoguanamincyanurat (1:1, synthesized according to procedure 4) Flame retardant 5: Ammelincyanurat (1:1, synthesized according to procedure 5) Flame retardant 6: Ammelidcyanurat (1:1, synthesized according to procedure 6) Flame retardant 7: Acetoguanamincyanurat (1:1, synthesized according to procedure 7) General procedure A to form of a flame retardant triazine complex (lab scale): 1 equivalent of triazine and 1 equivalent of cyanuric acid were dispersed in 100 ml water and heated to reflux for 4 h. Afterwards the reaction mixture was cooled to RT and filtered off. The precipitation was washed three times with portions of 100 ml water and dried under vacuum at 80°C for 12 h. Procedure 1: 20.00 g melamin und 20.47 g cyanuric acid were reacted according to the general procedure A. Procedure 2: 20.00 g melam und 10.98 g cyanuric acid were reacted according to the general procedure A. Procedure 3: 20.00 g melem und 11.83 g cyanuric acid were reacted according to the general procedure A. Procedure 4: 20.00 g benzoguanamine und 13.79 g cyanuric acid were reacted according to the general procedure A. Procedure 5: 5.00 g ammeline und 5.08 g cyanuric acid were reacted according to the general procedure A. Procedure 6: 5.00 g ammelide und 5.04 g cyanuric acid were reacted according to the general procedure A. Procedure 7: 20.00 g acetoguanamin and 20.63 g cyanuric acid were reacted according to the general procedure A. The following decomposition temperatures were determined: Flame retardant no component Decomposition temperature [°C] acc. first derivative DTG 1 Melamine cyanurate 452 2 Melam cyanurate 414 3 Melem cyanurate 380 4 Benzoguanamine cyanurate 335 5 Ammeline cyanurate 323 6 Ammelide cyanurate 324 7 Acetoguanamine cyanurate 335 Filler 1: glass fibers 210 µm length Larit 10.5 um thickness Tarit (Company Schwarzwaelder Textil-Werke Heinrich Kautzmann GmbH) Filler 2: glass fibers 160 µm length Larit13.0 um thickness Tarit(Company Profill GmbH) Filler 3: glass beads 106 µm length (diameter) Larit(Company Potters Ballotini GmbH) Additive 1: Calcium stearate (Company Baerlocher GmbH) Additive 2: Ethylene bis stearamide (Company Arxada Services AG) Compounding was carried out on a Xplore 15 micro compounder or a twin screw extruder ZE25 (Fa. Berstorff). All ingredients listed in Table 1 were added to the preheated apparatus via the feeding funnel and mixed for three minutes at 80 rpm. The polymer compositions comprising polymer 1 were processed at 260 °C. The polymer compositions comprising polymer 2 were processed at 5 °C. The shaft force of the compounder after three minutes was recorded which is related to the viscosity of the compound mixture at the compounding temperature. The components were compounded with mass temperature of 270 to 290°C and the throughput was 7.5 kg / h. The melt was discharged as a strand, cooled and granulated. The results of the polymer compositions are summarized in Table 1.

[0002]

Claims

Claims 1. Polymer composition PC1, comprising: a polymer P1, a mixture M1 comprising a compound A and a compound B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1):wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less.

2. Polymer composition PC1 according to claim 1, comprising: a polymer P1, a mixture M1 comprising a compound A and a compound B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1):wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and a filler F1, wherein the filler F1 is glass fibers and wherein a ratio [µm / µm] of a length Larit to a thickness Tarit of the filler F1 is 0.5 or more and 8.6 or less; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less.

3. Polymer composition PC1 according to claim 1 or 2, wherein the decomposition temperature of mixture M1 is 200°C or more, preferably 250°C or more, more preferably 290°C or more, more preferably 310°C or more; and / or445°C or less, preferably 440°C or less, more preferably 420°C or less, more preferably 400°C or less, more preferably 380°C or less, more preferably 360°C or less, more preferably 340°C or less, more preferably 320°C or less.

4. Polymer composition PC1 according to any one of the preceding claims, wherein compound A is melam, melem, benzoguanamine, ammeline, ammelide, acetoguanamine or mixtures thereof, preferably melem, melam, benzoguanamine, acetoguanamine or mixtures thereof, more preferably melem, melam or mixtures thereof, more preferably melem or melam, more preferably melam.

5. Polymer composition PC1 according to any one of the preceding claims, wherein the polymer P1 is a thermoplastic polymer, preferably polyamide (PA); preferably PA 6 or PA 66; or thermoplastic polyurethane (TPU), more preferably a polyamide (PA); preferably PA 6 or PA 66; more preferably PA 6.

6. Polymer composition PC1 according to any one of the preceding claims, wherein R1 to R3 are independently selected from H, OH and C1-C4 alkyl, preferably H, OH and methyl; preferably wherein compound B is cyanurate.

7. Polymer composition PC1 according to any one of the preceding claims, wherein the polymer composition PC1 and / or the mixture M2 comprises a filler F1 and wherein a content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 5 weight-% or more, preferably 8 weight-% or more, more preferably 10 weight-% or more, more preferably 12 weight-% or more, more preferably 14 weight-% or more, more preferably 16 weight-% or more, more preferably 18 weight-% or more, more preferably 20 weight-% or more, more preferably 25 weight-% or more, more preferably 30 weight-% or more; and / or 50 weight-% or less, preferably 40 weight-% or less, more preferably 30 weight-% or less, more preferably 28 weight-% or less, more preferably 26 weight-% or less, more preferably 24 weight-% or less, more preferably 22 weight-% or less, more preferably 20 weight-% or less, more preferably 15 weight-% or less.

8. Polymer composition PC1 according to any one of the preceding claims, wherein the polymer composition PC1 exhibits in the UL-94 test with a 1.6 mm specimen a V-2 classification, more preferably V-1 classification, more preferably V-0 classification; and / or wherein the polymer composition PC1 comprises improved flame retardancy, improved mechanical properties and / or improved environmental compatibility.

9. Polymer composition PC1 according to any one of the preceding claims, wherein the polymer composition PC1 exhibits in the UL-94 test an afterflame after the first application of the flame of 15 s or less, preferably 13 s or less, more preferably 11 s or less, more preferably 9 s or less, more preferably 7 s or less, morepreferably 5 s or less, more preferably 3 s or less, more preferably 2 s or less, more preferably 1 s or less, more preferably 0 s; and / or wherein the polymer composition PC1 exhibits in the UL-94 test an afterflame after the second application of the flame of 15 s or less, preferably 13 s or less, more preferably 11 s or less, more preferably 9 s or less, more preferably 7 s or less, more preferably 5 s or less, more preferably 3 s or less, more preferably 2 s or less, more preferably 1 s or less, more preferably 0 s.

10. Polymer composition PC1 according to any one of the preceding claims, wherein the polymer composition PC1 does not comprise melamine cyanurate, preferably does not comprise melamine.

11. Method for producing a polymer composition PC1, preferably a polymer composition PC1 according to any one of the preceding claims, comprising the following steps: mixing a mixture M2 comprising polymer P1 and a mixture M1, preferably and a filler F1, to obtain a polymer composition PC1; wherein the mixture M1 comprises compound A and B, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1):(1), wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less.

12. Method, preferably according to claim 11, wherein the method comprises the following step: converting, preferably molding, the polymer composition PC1 according to any one of claims 1 to 10 and / or obtainable by or obtained by the method according to claim 11 to obtain a polymer product PP1.

13. Polymer product PP1 comprising the polymer composition PC1 according to any one of claims 1 to 10 and / or obtained by or obtainable by the method according to claim 11 or 12.

14. Use of the polymer composition PC1 according to any one of claims 1 to 10 and / or the polymer product PP1 according to claim 13 in a recycling process, preferably mechanical recycling or chemically recycling process, more preferably depolymerization, gasification and / or pyrolysis process.

15. Use of a mixture M1 comprising a compound A and a compound B as additive, preferably as flame retardant and / or modifier, in a polymer composition PC1, wherein compound A comprises a triazine, and wherein compound B is a compound of formula (1):(1), wherein R1 to R3 are independently selected from H, OH, CN, NH2and a moiety containing 1 to 20 carbon atoms; and wherein a decomposition temperature of mixture M1 is 150 °C or more and 450 °C or less.

Images