Flame-retardant polymer composition

Abstract

Described herein is a particular polymer composition comprising a flame retardant.

Description

[0001] The requirements for flame-retardant polymers are steadily increasing. In addition to good flame retardancy, mechanical properties and toxicity are also receiving increasing attention. Melamine cyanurate is a well-known flame retardant for polymers. However, the mechanical properties and toxicity of polymer compositions containing melamine cyanurate are insufficient for applications with very high mechanical requirements, which also demand high flame retardancy and low toxicity. Therefore, the object of the present invention is to provide a polymer composition exhibiting at least one of the following:

[0002] - Improved flame retardancy

[0003] - Improved mechanical properties, and

[0004] - Lower toxicity.

[0005] This objective is achieved, at least in part, by a polymer composition PC1, which comprises:

[0006] Polymer P1,

[0007] M1 is a mixture containing compound A and compound B.

[0008] Compound A includes triazine, and

[0009] Compound B is a compound of formula (1):

[0010] (1),

[0011] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0012] Preferably, filler F1; and

[0013] The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0014] Furthermore, this objective is achieved at least in part by the use of a mixture M1 comprising compound A and compound B in polymer composition PC1, preferably the polymer composition PC1 described herein, as an additive, and more preferably as a flame retardant and / or modifier.

[0015] Compound A includes triazine, and

[0016] Compound B is a compound of formula (1):

[0017] (1),

[0018] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0019] The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0020] Furthermore, this objective is achieved at least in part by the use of a mixture M1 comprising compound A and compound B in a polymer composition PC1 comprising filler F1, preferably the polymer composition PC1 described herein, as an additive, and more preferably as a flame retardant and / or modifier.

[0021] Compound A includes triazine, and

[0022] Compound B is a compound of formula (1):

[0023] (1),

[0024] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0025] The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0026] Furthermore, this objective is achieved at least in part by a method for preparing polymer composition PC1, preferably the polymer composition PC1 described herein, the method comprising the following steps:

[0027] Mixture M2, which contains polymer P1 and preferably mixture M1, is mixed with filler F1 to obtain polymer composition PC1;

[0028] Mixture M1 contains compounds A and B.

[0029] Compound A includes triazine, and

[0030] Compound B is a compound of formula (1):

[0031] (1),

[0032] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0033] The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0034] There are no particular limitations on polymer P1. Preferably, polymer P1 is a thermoplastic polymer, preferably polyamide (PA); preferably PA 6 or PA 66; or thermoplastic polyurethane (TPU), more preferably polyamide (PA); preferably PA 6 or PA 66; more preferably PA 6. Therefore, flame retardancy is improved.

[0035] The content of polymer P1 in polymer composition PC1 and / or mixture M2 is not particularly limited. Preferably, the content of polymer P1 in polymer composition PC1 and / or mixture M2 is 25% by weight or more, preferably 30% by weight or more, more preferably 40% by weight or more, more preferably 50% by weight or more, more preferably 60% by weight or more, more preferably 65% ​​by weight or more, more preferably 70% by weight or more, more preferably 75% by weight or more, more preferably 80% by weight or more, more preferably 90% by weight or more, and / or the content of polymer P1 in polymer composition PC1 and / or mixture M2 is 99% by weight or less, preferably 95% by weight or less, more preferably 90% by weight or less, more preferably 85% by weight or less, more preferably 80% by weight or less, more preferably 75% by weight or less, more preferably 70% by weight or less, more preferably 65% ​​by weight or less, more preferably 60% by weight or less. Therefore, the mechanical properties are improved.

[0036] The melting temperature Tm of polymer P1 is not particularly limited. Preferably, the Tm of polymer P1 is 150°C or higher, preferably 175°C or higher, more preferably 190°C or higher, more preferably 200°C or higher, more preferably 210°C or higher, more preferably 220°C or higher, more preferably 230°C or higher, more preferably 240°C or higher, more preferably 250°C or higher, more preferably 260°C or higher, and / or the Tm of polymer P1 is 400°C or lower, preferably 350°C or lower, more preferably 325°C or lower, more preferably 300°C or lower, more preferably 290°C or lower, more preferably 280°C or lower, more preferably 270°C or lower, more preferably 260°C or lower. Therefore, flame retardancy is improved.

[0037] There is no particular limitation on the glass transition temperature (Tg) of polymer P1. Preferably, the Tg of polymer P1 is 10°C or higher, preferably 20°C or higher, more preferably 30°C or higher, more preferably 40°C or higher, more preferably 50°C or higher, more preferably 60°C or higher, and / or the Tg of polymer P1 is 80°C or lower, preferably 70°C or lower, more preferably 60°C or lower, more preferably 50°C or lower, more preferably 40°C or lower, more preferably 30°C or lower. Therefore, flame retardancy is improved.

[0038] There is no particular limitation on the weight-average molecular weight Mw of polymer P1. Preferably, the weight-average molecular weight Mw of polymer P1 is 3*10. 5 g / mol or greater, preferably 4*10 g / mol 5 g / mol or greater, more preferably 5*10 5 g / mol or greater, more preferably 6*10 5 g / mol or greater, more preferably 7*10 5 g / mol or greater, more preferably 8*10 5 g / mol or greater, more preferably 9*10 5 g / mol or greater, and / or the weight-average molecular weight Mw of polymer P1 is 10*10 5 g / mol or less, preferably 9*10 g / mol 5 g / mol or less, more preferably 8*10 5 g / mol or less, more preferably 7*10 ... 5 g / mol or less, more preferably 6*10 5 g / mol or less, more preferably 5*10 5 g / mol or less, more preferably 4*10 5 g / mol or less. Therefore, mechanical properties and flame retardancy are improved.

[0039] There is no particular limitation on the viscosity value of polymer P1. Preferably, the viscosity value VN of polymer P1 is 40 ml / g or greater, preferably 60 ml / g or greater, more preferably 80 ml / g or greater, more preferably 100 ml / g or greater, more preferably 120 ml / g or greater, more preferably 140 ml / g or greater, more preferably 160 ml / g or greater, and / or the viscosity value of 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. Therefore, mechanical properties and flame retardancy are improved.

[0040] According to the present invention, compound A comprises a triazine. In a preferred embodiment, compound A comprises the following binding moiety:

[0041] Preferably Therefore, flame retardancy is improved.

[0042] In a preferred embodiment, compound A is melamine, melamine, benzoguanamine, cyanuric acid diamide, cyanuric acid monoamide, acetylguanidine, or a mixture thereof, preferably melamine, melamine, benzoguanamine, acetylguanidine, or a mixture thereof, more preferably melamine, melamine, or a mixture thereof, even more preferably melamine or melamine, and even more preferably melamine. Therefore, flame retardancy is improved, and the toxicity of the polymer composition is reduced.

[0043] In a preferred embodiment, compound A comprises, and preferably consists of, melamine and / or melamine and / or benzoguanamine and / or cyanuric acid diamide and / or cyanuric acid monoamide and / or acetylguanidine. Therefore, flame retardancy is improved and the toxicity of the polymer composition is reduced.

[0044] According to the present invention, compound B is a compound of formula (1):

[0045] (1),

[0046] R1 to R3 are independently selected from H, OH, CN, NH2 and portions containing 1 to 20 carbon atoms.

[0047] In a preferred embodiment, R1 to R3 are independently selected from H, OH and C1-C4 alkyl groups, preferably H, OH and methyl groups. Therefore, flame retardancy is improved.

[0048] In a preferred embodiment, compound B is a cyanurate. Therefore, flame retardancy is improved.

[0049] The ratio of compound A to compound B is not particularly limited. The inventors have recognized that, surprisingly, the decomposition temperature of mixture M1 is significantly affected by the ratio of compound A to compound B in mixture M1. Therefore, in a preferred embodiment, the ratio of compound A to compound B is 0.5 or greater, preferably 0.6 or greater, more preferably 0.7 or greater, more preferably 0.8 or greater, more preferably 0.9 or greater, more preferably 1.0 or greater, more preferably 1.1 or greater, more preferably 1.2 or greater, more preferably 1.3 or greater, more preferably 1.4 or greater, more preferably 1.5 or greater, and / or the ratio of compound B to compound A is 0.5 or greater, preferably 0.6 or greater, more preferably 0.7 or greater, more preferably 0.8 or greater, more preferably 0.9 or greater, more preferably 1.0 or greater, more preferably 1.1 or greater, more preferably 1.2 or greater, more preferably 1.3 or greater, more preferably 1.4 or greater, more preferably 1.5 or greater. Therefore, flame retardancy is improved.

[0050] According to the present invention, the decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower. Therefore, the polymer composition exhibits improved flame retardancy. In a preferred embodiment, the decomposition temperature of mixture M1 is 200°C or higher, preferably 250°C or higher, more preferably 290°C or higher, more preferably 310°C or higher, more preferably 330°C or higher, more preferably 350°C or higher, more preferably 370°C or higher, more preferably 390°C or higher, more preferably 410°C or higher, more preferably 430°C or higher, and / or the decomposition temperature of mixture M1 is 445°C or lower, preferably 440°C or lower, more preferably 420°C or lower, more preferably 400°C or lower, more preferably 380°C or lower, more preferably 360°C or lower, more preferably 340°C or lower, more preferably 320°C or lower. Therefore, flame retardancy is further improved.

[0051] In a preferred embodiment, mixture M1 comprises, and preferably consists of, melamine cyanurate, melamine cyanurate, benzoguanamine cyanurate, cyanuric acid diamide cyanurate, cyanuric acid monoamide cyanurate, acetylguanamine cyanurate, or mixtures thereof, preferably melamine cyanurate, melamine cyanurate, benzoguanamine cyanurate, acetylguanamine cyanurate, or mixtures thereof, more preferably melamine cyanurate, melamine cyanurate, or mixtures thereof, and even more preferably melamine cyanurate. Therefore, flame retardancy is improved.

[0052] According to the present invention, the polymer composition may contain filler F1. In a preferred embodiment, the polymer composition PC1 and / or mixture M2 contain filler F1. Therefore, the mechanical properties are improved.

[0053] In a preferred embodiment, the filler F1 is fiber or beads, preferably fiber, more preferably milled glass fiber. Therefore, mechanical properties and flame retardancy are improved.

[0054] In a preferred embodiment, the filler F1 is made of glass, preferably glass fiber, glass beads, or a mixture thereof, more preferably glass fiber. Therefore, mechanical properties and flame retardancy are improved.

[0055] The length L of packing F1 arit There are no particular restrictions. Preferably, the length L of the packing F1 is... aritThe filler thickness is 40 μm or greater, preferably 50 μm or greater, more preferably 60 μm or greater, more preferably 70 μm or greater, more preferably 80 μm or greater, more preferably 90 μm or greater, more preferably 95 μm or greater, more preferably 100 μm or greater, more preferably 105 μm or greater, more preferably 110 μm or greater, more preferably 120 μm or greater, more preferably 130 μm or greater, more preferably 140 μm or greater, more preferably 150 μm or greater, and / or the length L of the filler F1 is... arit The filler diameter 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 have recognized that, surprisingly, if the length L of the filler F1... arit Within this range, flame retardancy is improved, and furthermore, the mechanical properties of the polymer composition PC1 are improved. This is especially true if the filler F1 is fiber, preferably glass fiber.

[0056] The length L of packing F1 weight There are no particular restrictions. Preferably, the length L of the packing F1 is... weight The filler diameter is 40 μm or larger, preferably 50 μm or larger, more preferably 60 μm or larger, more preferably 70 μm or larger, more preferably 80 μm or larger, more preferably 90 μm or larger, more preferably 95 μm or larger, more preferably 100 μm or larger, more preferably 105 μm or larger, more preferably 110 μm or larger, more preferably 120 μm or larger, more preferably 130 μm or larger, more preferably 140 μm or larger, more preferably 150 μm or larger, more preferably 160 μm or larger, more preferably 170 μm or larger, more preferably 180 μm or larger, more preferably 190 μm or larger, more preferably 200 μm or larger, more preferably 210 μm or larger, more preferably 220 μm or larger, and / or the length L of the filler F1 is... weightThe aperture 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 1 90 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 L of the filler F1... weight Within this range, flame retardancy is improved, and furthermore, the mechanical properties of the polymer composition PC1 are improved. This is especially true if the filler F1 is fiber, preferably glass fiber.

[0057] There is no particular limitation on the thickness of packing F1. Preferably, the thickness T of packing F1 is... arit The thickness T of filler F1 is 2.0 μm or greater, preferably 4.0 μm or greater, more preferably 6.0 μm or greater, more preferably 8.0 μm or greater, more preferably 10.0 μm or greater, more preferably 10.1 μm or greater, more preferably 10.3 μm or greater, more preferably 10.5 μm or greater, more preferably 10.7 μm or greater, more preferably 10.9 μm or greater, more preferably 11.0 μm or greater, more preferably 11.1 μm or greater, more preferably 11.3 μm or greater, more preferably 11.5 μm or greater, more preferably 11.7 μm or greater, more preferably 11.9 μm or greater, more preferably 12.0 μm or greater, more preferably 14.0 μm or greater, and / or the thickness T of filler F1. aritThe micrometer size is 40.0 μm or smaller, preferably 30.0 μm or smaller, more preferably 25.0 μm or smaller, more preferably 20.0 μm or smaller, more preferably 15.0 μm or smaller, more preferably 14.0 μm or smaller, more preferably 13.5 μm or smaller, more preferably 13.0 μm or smaller, more preferably 12.5 μm or smaller, more preferably 12.0 μm or smaller, more preferably 11.8 μm or smaller, more preferably 11.6 μm or smaller, more preferably 11.4 μm or smaller, more preferably 11.2 μm or smaller, more preferably 11.0 μm or smaller, more preferably 10.8 μm or smaller, more preferably 10.6 μm or smaller, more preferably 10.4 μm or smaller, more preferably 10.2 μm or smaller, more preferably 10.0 μm or smaller. Therefore, flame retardancy is improved.

[0058] There is no particular limitation on the ratio of the length to the thickness of the packing F1. Preferably, the length L of the packing F1 is... arit With thickness T arit The ratio [μm / μm] is 0.5 or greater, preferably 1.0 or greater, more preferably 3.0 or greater, more preferably 5.0 or greater, more preferably 7.0 or greater, more preferably 9.0 or greater, more preferably 9.2 or greater, more preferably 9.4 or greater, more preferably 9.6 or greater, more preferably 9.8 or greater, more preferably 10.0 or greater, more preferably 10.2 or greater, more preferably 10.4 or greater, more preferably 10.6 or greater, more preferably 10.8 or greater, more preferably 11.0 or greater, and / or the length L of the packing F1. arit With thickness T arit The ratio [μm / μm] 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 have recognized that, surprisingly, flame retardancy is improved when the ratio is within this range, and furthermore, the mechanical properties of the polymer composition PC1 are improved. This is especially true if the filler F1 is fiber, preferably glass fiber. In particular, if the length and / or (preferably) thickness of the filler F1 are within the range described above, and the ratio of the length to the thickness of the filler F1 is as described above, the mechanical properties and flame retardancy are further improved.

[0059] There is no particular limitation on the ratio of the length to the thickness of the packing F1. Preferably, the length L of the packing F1 is... weight With thickness T arit The ratio [μm / μm] is 0.5 or greater, preferably 1.0 or greater, more preferably 3.0 or greater, more preferably 5.0 or greater, more preferably 7.0 or greater, more preferably 9.0 or greater, more preferably 11.0 or greater, more preferably 12.0 or greater, more preferably 13.0 or greater, more preferably 13.5 or greater, more preferably 13.7 or greater, more preferably 14.0 or greater, more preferably 14.5 or greater, more preferably 15.0 or greater, more preferably 15.5 or greater, more preferably 15.7 or greater, more preferably 16.0 or greater, more preferably 16.1 or greater, more preferably 16.3 or greater, more preferably 16.5 or greater, more preferably 16.7 or greater, and / or the length L of the filler F1. weight With thickness T arit The ratio [μm / μm] 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 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 have recognized that, surprisingly, flame retardancy is improved when the ratio is within this range, and furthermore, the mechanical properties of the polymer composition PC1 are improved. This is especially true if the filler F1 is fiber, preferably glass fiber. In particular, if the length and / or (preferably) thickness of the filler F1 are within the range described above, and the ratio of the length to the thickness of the filler F1 is as described above, the mechanical properties and flame retardancy are further improved.

[0060] The content of filler F1 in polymer composition PC1 and / or mixture M2 is not particularly limited. In a preferred embodiment, the content of filler F1 in polymer composition PC1 and / or mixture M2 is 5% by weight or more, preferably 8% by weight or more, more preferably 10% by weight or more, more preferably 12% by weight or more, more preferably 14% by weight or more, more preferably 16% by weight or more, more preferably 18% by weight or more, more preferably 20% by weight or more, more preferably 25% by weight or more, more preferably 30% by weight or more, and / or the content of filler F1 in polymer composition PC1 and / or mixture M2 is 50% by weight or less, preferably 40% by weight or less, more preferably 30% by weight or less, more preferably 28% by weight or less, more preferably 26% by weight or less, more preferably 24% by weight or less, more preferably 22% by weight or less, more preferably 20% by weight or less, more preferably 15% by weight or less. Therefore, flame retardancy and mechanical properties are improved.

[0061] There is no particular limitation on the Young's modulus of the polymer composition PC1. Preferably, the Young's modulus of the polymer composition PC1 is 3.0 GPa or greater, preferably 4.0 GPa or greater, more preferably 4.5 GPa or greater, more preferably 5.0 GPa or greater, more preferably 5.5 GPa or greater, more preferably 5.8 GPa or greater, more preferably 5.9 GPa or greater, more preferably 6.0 GPa or greater, more preferably 6.2 GPa or greater, more preferably 6.4 GPa or greater, more preferably 6.6 GPa or greater, and / or the polymer composition PC1... The Young's modulus of 1 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 within the above range, the mechanical properties are improved.

[0062] In a preferred embodiment, the polymer composition PC1 exhibits a V-2 rating, more preferably a V-1 rating, and even more preferably a V-0 rating in a UL-94 test using a 1.6 mm sample. If this parameter is met, the flame retardancy is improved.

[0063] In a preferred embodiment, the polymer composition PC1 exhibits an afterflame of 15 seconds or less, preferably 13 seconds or less, more preferably 11 seconds or less, more preferably 9 seconds or less, more preferably 7 seconds or less, more preferably 5 seconds or less, more preferably 3 seconds or less, more preferably 2 seconds or less, more preferably 1 second or less, and more preferably 0 seconds after the first application of flame in a UL-94 test. If this parameter is met, the flame retardancy is improved.

[0064] In a preferred embodiment, the polymer composition PC1 exhibits an afterflame of 15 seconds or less, preferably 13 seconds or less, more preferably 11 seconds or less, more preferably 9 seconds or less, more preferably 7 seconds or less, more preferably 5 seconds or less, more preferably 3 seconds or less, more preferably 2 seconds or less, more preferably 1 second or less, and more preferably 0 seconds after a second flame application in a UL-94 test. If this parameter is met, the flame retardancy is improved.

[0065] In a preferred embodiment, the polymer composition PC1 includes improved flame retardancy, improved mechanical properties, and / or improved environmental compatibility. If these parameters are met, the applicability of the polymer composition PC1 is broadened.

[0066] In a preferred embodiment, the polymer composition PC1 and / or mixture M2 do not contain melamine cyanurate, and preferably do not contain melamine.

[0067] According to the present invention, the above-mentioned objective is achieved at least in part by a method for preparing polymer composition PC1, preferably the polymer composition PC1 described herein, the method comprising the following steps:

[0068] Mixture M2, which contains polymer P1 and preferably mixture M1, is mixed with filler F1 to obtain polymer composition PC1;

[0069] Mixture M1 contains compounds A and B.

[0070] Compound A includes triazine, and

[0071] Compound B is a compound of formula (1):

[0072] (1),

[0073] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0074] The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0075] In a preferred embodiment, mixing is carried out by an extruder, preferably a twin-screw extruder.

[0076] In a preferred embodiment, the temperature in the mixing step is set to Tm of polymer P1 in °C or higher, preferably Tm of polymer P1 in °C + 10 °C or higher, more preferably Tm of polymer P1 in °C + 20 °C or higher, more preferably Tm of polymer P1 in °C + 30 °C or higher, more preferably Tm of polymer P1 in °C + 40 °C or higher, more preferably Tm of polymer P1 in °C + 50 °C or higher, more preferably Tm of polymer P1 in °C + 60 °C or higher, and more preferably Tm of polymer P1 in °C + 70 °C or higher. More preferably, the polymer P1 has a Tm of 80°C or higher, more preferably a Tm of 90°C or higher, more preferably a Tm of 100°C or higher, and / or the temperature in the mixing step is set to a Tm of 200°C or lower, preferably a Tm of 150°C or lower, preferably a Tm of 100°C or lower, preferably a Tm of 90°C or lower, preferably a Tm of 80°C or lower. Therefore, mechanical properties and flame retardancy are improved.

[0077] In a preferred embodiment, during the mixing step, preferably in the extruder, the throughput of polymer P1 is 100 kg / h or greater, preferably 500 kg / h or greater, more preferably 1000 kg / h or greater, more preferably 2500 kg / h or greater, more preferably 5000 kg / h or greater, and / or during the mixing step, preferably in the extruder, the throughput of polymer P1 is 10000 kg / h or less, preferably 8000 kg / h or less, more preferably 5000 kg / h or less. Therefore, the mechanical properties are improved.

[0078] In a preferred embodiment, the residence time in the mixing step, preferably in the extruder, is 10 s or longer, preferably 20 s or longer, more preferably 30 s or longer, more preferably 45 s or longer, more preferably 60 s or longer, more preferably 90 s or longer, more preferably 120 s or longer, more preferably 150 s or longer, more preferably 180 s or longer, more preferably 240 s or longer, and / or the residence time in the mixing step, preferably in the extruder, is 10,000 s or longer. The flame retardancy is short, preferably 5000s or less, more preferably 2500s or less, more preferably 2000s or less, more preferably 1500s or less, more preferably 1000s or less, more preferably 500s or less, more preferably 400s or less, more preferably 300s or less, more preferably 200s or less, more preferably 180s or less, more preferably 150s or less, more preferably 120s or less, more preferably 90s or less, more preferably 60s or less, and more preferably 45s or less. Therefore, the mechanical properties and flame retardancy are improved.

[0079] The above objective is further achieved by a method comprising one or more steps described herein and the following steps:

[0080] The polymer composition PC1 described herein and / or obtainable by the methods described herein or obtained by the methods described herein is converted, preferably molded, to obtain the polymer product PP1.

[0081] In a preferred embodiment, the polymer composition PC1 and / or mixture M2 comprises, preferably, the following: polymer P1, mixture M1, preferably filler F1, and preferably one or more additives A1; preferably, the polymer composition PC1 and / or mixture M2 comprises, in weight percent, the following, preferably, the following:

[0082] Polymer P1 with a content of 1 to 99, preferably 50 to 90, more preferably 60 to 80,

[0083] A mixture M1 of 1 to 30, preferably 2 to 20, more preferably 4 to 12.

[0084] 0 to 50, preferably 5 to 40, more preferably 15 to 30, of filler F1, and

[0085] One or more additives A1, ranging from 0 to 30, preferably 0 to 10, and more preferably 0.3 to 5, are used. As a result, mechanical properties and flame retardancy are improved.

[0086] In a preferred embodiment, one or more additives A1 are selected from antioxidants, stabilizers, lubricants, minerals, chain extenders, impact modifiers, colorants, pigments, soot, carbon black, talc, and mixtures thereof.

[0087] The above objective is further achieved by a polymer product PP1 comprising a polymer composition PC1 described herein and / or obtained or obtainable by the methods described herein.

[0088] In a preferred embodiment, the polymer composition PC1 and / or the polymer product PP1 is one of the following or a component of the following:

[0089] - Automotive parts; preferably cylinder head covers, engine hoods, turbocharger housings, turbocharger baffles, intake pipes, intake manifolds, connectors, gears, fan wheels, coolant tanks, heat exchanger housings, housing components, coolant coolers, turbocharger housings, thermostats, water pumps, radiators, fasteners, components for battery systems in electric vehicles, instrument panels, steering column switches, seats, headrests, center consoles, transmission components, door modules, A, B, C, or D pillar covers, spoilers, door handles, exterior rearview mirrors, windshield wipers, windshield wiper protective housings, decorative grilles, cover strips, roof rails, window frames, sunroof frames, antenna panels, headlights and taillights, engine hoods, cylinder head covers, intake manifolds, airbags, cushioning pads or coatings;

[0090] - Fabric; preferably shirts, trousers, sweaters, boots, shoes, shoe soles, tights or jackets;

[0091] - Electrical components; preferably electrical or electronic passive or active components, circuit boards, printed circuit boards, housing components, foils, wires, switches, plugs, sockets, distributors, relays, resistors, capacitors, inductors, spools, lamps, diodes, LEDs, transistors, connectors, voltage regulators, integrated circuits (ICs), processors, controllers, memory, sensors, microswitches, microbuttons, semiconductors, reflector housings for light-emitting diodes (LEDs), fasteners, gaskets, bolts, strips, slide-in guides, screws, nuts, membrane hinges, spring hooks (snap-in type) or spring tongues;

[0092] - Consumer goods, agricultural products, or pharmaceutical products; preferably tennis strings, climbing ropes, bristles, brushes, artificial turf, 3D printed filaments, lawnmowers, zippers, hook and loop fasteners, paper machine fabrics, extrusion coatings, fishing lines, fishing nets, offshore lines and ropes, vials, syringes, ampoules, bottles, sliding elements, spindle nuts, chain conveyors, sliding bearings, rollers, wheels, gears, ring gears, screws and spring dampers, hoses, pipes, cable sheaths, sockets, switches, cable ties, fan wheels, carpets, cosmetic boxes or bottles, mattresses, cushions, insulating materials, detergents, dishwasher tablets or powders, shampoos, bath products, bath gels, soaps, fertilizers, fungicides, or insecticides;

[0093] - Packaging for the food industry; preferably single-layer or multi-layer blown film, cast film (single-layer or multi-layer), biaxial stretch film, or laminated film; or

[0094] - Building components; preferably rotor blades, insulation materials, frames, housings, walls, coatings, or partition walls.

[0095] In addition, the objective is achieved at least in part by the use of the polymer composition PC1 as described herein and / or the polymer product PP1 as described herein in recycling processes, preferably mechanical or chemical recycling processes, more preferably depolymerization, gasification and / or pyrolysis processes.

[0096] In a preferred embodiment, the polymer composition PC1 and / or mixture M2 do not contain melamine cyanurate, preferably melamine; and / or acetylguanidine cyanurate, preferably acetylguanidine; and / or benzoguanidine cyanurate, preferably benzoguanidine.

[0097] In a preferred embodiment, the content of mixture M1 in polymer composition PC1 and / or mixture M2 is 1% by weight or more, preferably 3% by weight or more, more preferably 5% by weight or more, more preferably 8% by weight or more, more preferably 10% by weight or more, more preferably 12% by weight or more; and / or the content of mixture M1 in polymer composition PC1 and / or mixture M2 is 30% by weight or less, preferably 25% by weight or less, more preferably 20% by weight or less, more preferably 15% by weight or less, more preferably 12% by weight or less, more preferably 10% by weight or less. Therefore, flame retardancy is improved, and the toxicity of the polymer composition is reduced.

[0098] In a preferred embodiment, the polymer composition PC1 and / or mixture M2 do not contain chopped glass fibers. Therefore, flame retardancy is improved.

[0099] In a preferred embodiment, the polymer composition PC1 and / or mixture M2 does not contain more than 30% by weight, preferably 20% by weight, more preferably 10% by weight, more preferably 5% by weight, more preferably 3% by weight, more preferably 2% by weight, more preferably 1% by weight of any other polymer besides polymer P1, and preferably does not contain any other polymer besides polymer P1. Therefore, flame retardancy is improved.

[0100] Methods and Definitions

[0101] Unless otherwise specified, the following method is preferred, and definitions apply.

[0102] In this document, triazine is a six-membered ring comprising alternating N and C atoms, wherein the ring exhibits p orbitals connected to delocalized electrons. Preferably, the triazine is a substituted or unsubstituted 1,3,5-triazine, more preferably a substituted 1,3,5-triazine.

[0103] The glass transition temperature Tg and melting temperature Tm are preferably determined as follows: Tm and Tg are measured by DSC. According to DIN ENISO 11357, DSC measurements are performed on a Perkin Elmer DSC 8000 using a heating / cooling rate of 20 K / min over a temperature range of 0 °C–280 °C.

[0104] Young's modulus is preferably determined as follows: injection molding is performed to produce tensile test bars for tensile testing according to ISO 527-1 / -2. The tensile test bars are injection molded using an Arburg 470H at a barrel temperature of 270°C and a mold temperature of approximately 80°C.

[0105] The glass fiber length is preferably determined as follows: First, a polymer compound containing glass fibers is pyrolyzed at 650°C for 1.5 hours to obtain glass fibers. Then, a spatula (approximately 5 mg) of the glass fiber tip is dispersed in a mixture of 100 mL of water and 2 drops of glycerol and transferred to a petri dish. The petri dish is then placed on the surface of an Epson Perfection V850 Pro flatbed scanner. This type of scanner can analyze the length of approximately 80,000 fibers simultaneously. Due to the limited resolution of the scanner, fibers shorter than 21.2 μm cannot be detected. Therefore, fibers shorter than 21.2 μm are not considered.

[0106] The glass fiber thickness is preferably determined as follows: First, a polymer compound containing glass fibers is pyrolyzed at 650°C for 1.5 h to obtain glass fibers. Then, a spatula (approximately 5 mg) of the glass fiber tip is dispersed in a mixture of 100 mL of water and 2 drops of glycerol and transferred to a petri dish, which is then placed under a microscope. The diameters of ten different glass fibers are electronically measured using an image capture system (by Zeiss). The average value of the ten glass fibers is taken as the glass fiber thickness.

[0107] Value calculation:

[0108] Length L of glass fiber arit = (L total ) / (L arit );

[0109] Where L total It is the sum of the lengths of all fibers, and

[0110] Where L arit It is the sum of all fibers.

[0111] Length L of glass fiber weight = (L total ) / (L weight );

[0112] Where L total It is the sum of the lengths of all fibers, and

[0113] Where L weight It is the sum of the lengths of all fibers.

[0114] The thickness T of the glass fiber arit = (T total ) / (T arit );

[0115] Where T total It is the sum of the thicknesses of all fibers, and

[0116] Where T arit It is the sum of the thicknesses of all fibers.

[0117] The decomposition temperature is preferably determined as follows: The decomposition temperature is determined using a thermogravimetric analysis (TGA). Thermogravimetric analysis (TGA) is performed according to ISO 11358-1 using a TA Instruments apparatus “TGA Q5000IR”. A sample of 3 mg to 6 mg, preferably 5 mg, is filled into the sample holder. Before and throughout the measurement, the sample chamber is purged with 99,999% pure nitrogen gas at 25 ml / min. The test sample is then heated at a specified rate of 20 K / min using a temperature control program from 40 °C to 600 °C, and the change in mass as a function of temperature is measured. The obtained thermogravimetric data are displayed in a mass versus temperature graph (see, for example, a graph for melamine cyanurate). Figure 1 The decomposition temperature is determined by the derivative of this graph, and is the temperature at which the derivative reaches its maximum value. (See also...) Figure 1 (Determination of the decomposition temperature [°C] of melamine cyanurate).

[0118] The UL94 test, including afterflame time determination, is preferably performed as follows: The flame retardancy of the molding composition is determined using the UL94V method (Underwriters Laboratories Inc. Standard of Safety, "Test for Flammability of Plastic Materials for Parts in Devices and Appliances", pp. 14-18, Northbrook 1998). A 1.6 mm thick rod-shaped specimen is used. A laboratory burner is used to apply a flame vertically to the specimen twice, each time for 10 seconds, and the afterflame time after the first and second application is measured (= afterflame time (seconds) (first application / second application)).

[0119] The weight-average molecular weight (Mw) was determined as follows: An Agilent 1100 series integrated instrument was used, including 2 x PLHFIPgel 300x7.5 mm + 1 HFIP-LG Guard 50x7.5 mm and a DRI Agilent 1100 detector. All calibrations were performed using PMMA standards with molecular weights between 800 g / mol and 2,200,000 g / mol, purchased from Polymer Standards Service. The flow rate was 1 mL / min, and the sample concentration was 1.5 mg / mL. The eluent was HFIP + 0.05% potassium trifluoroacetate.

[0120] The viscosity value VN is preferably determined as follows:

[0121] According to ISO 307:2019, the viscosity (in ml / g) of thermoplastic polyamide is determined at 25°C in a 0.5% solution of 96% sulfuric acid.

[0122] In summary, the embodiments and preferred embodiments are the following items. The scope of protection is defined by the claims. Further preferred are two or more embodiments, such as combinations of three, four, or eight items. Furthermore, unless otherwise stated, the definitions and general statements of the polymer composition PC1 mentioned herein also apply to the polymer product PP1, methods, and uses, and vice versa. The definitions and general statements herein preferably also apply to the following items and preferred embodiments. Preferably, where present in the claims, the steps described in the following items are performed in the following order.

[0123] 1. A polymer composition PC1, comprising:

[0124] Polymer P1,

[0125] M1 is a mixture containing compound A and compound B.

[0126] Compound A includes triazine, and

[0127] Compound B is a compound of formula (1):

[0128] (1),

[0129] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0130] Preferably, filler F1; and

[0131] Preferably, the decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0132] 2. Use of a mixture M1 comprising compound A and compound B in a polymer composition PC1, preferably as an additive, and more preferably as a flame retardant and / or modifier, according to the polymer composition PC1 described in item 1.

[0133] Compound A includes triazine, and

[0134] Compound B is a compound of formula (1):

[0135] (1),

[0136] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0137] Preferably, the decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0138] 3. The use of a mixture M1 comprising compound A and compound B in a polymer composition PC1 comprising filler F1, preferably as an additive, and more preferably as a flame retardant and / or modifier, according to the polymer composition PC1 described in item 1.

[0139] Compound A includes triazine, and

[0140] Compound B is a compound of formula (1):

[0141] (1),

[0142] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0143] Preferably, the decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0144] 4. A method for preparing polymer composition PC1, preferably according to the polymer composition PC1 described in Project 1, comprising the following steps:

[0145] Mixture M2, which contains polymer P1 and preferably mixture M1, is mixed with filler F1 to obtain polymer composition PC1.

[0146] The mixture M1 contains compounds A and B.

[0147] Compound A includes triazine, and

[0148] Compound B is a compound of formula (1):

[0149] (1),

[0150] R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and

[0151] Preferably, the decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

[0152] 5. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer PC1 is a thermoplastic polymer, preferably polyamide (PA); preferably PA 6 or PA 66; or thermoplastic polyurethane (TPU), more preferably polyamide (PA); preferably PA 6 or PA 66; more preferably PA 6.

[0153] 6. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the content of polymer P1 in the polymer composition PC1 and / or the mixture M2 is 25% by weight or more, preferably 30% by weight or more, more preferably 40% by weight or more, more preferably 50% by weight or more, more preferably 60% by weight or more, more preferably 65% ​​by weight or more, more preferably 70% by weight or more, more preferably 75% by weight or more, more preferably 80% by weight or more, more preferably 90% by weight or more.

[0154] 7. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the content of polymer P1 in said polymer composition PC1 and / or said mixture M2 is 99% by weight or less, preferably 95% by weight or less, more preferably 90% by weight or less, more preferably 85% by weight or less, more preferably 80% by weight or less, more preferably 75% by weight or less, more preferably 70% by weight or less, more preferably 65% ​​by weight or less, more preferably 60% by weight or less.

[0155] 8. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer P1 has a Tm of 150°C or higher, more preferably 175°C or higher, more preferably 190°C or higher, more preferably 200°C or higher, more preferably 210°C or higher, more preferably 220°C or higher, more preferably 230°C or higher, more preferably 240°C or higher, more preferably 250°C or higher, and more preferably 260°C or higher.

[0156] 9. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the Tm of said polymer P1 is 400°C or lower, preferably 350°C or lower, more preferably 325°C or lower, more preferably 300°C or lower, more preferably 290°C or lower, more preferably 280°C or lower, more preferably 270°C or lower, and more preferably 260°C or lower.

[0157] 10. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer P1 has a Tg of 10°C or higher, preferably 20°C or higher, more preferably 30°C or higher, more preferably 40°C or higher, more preferably 50°C or higher, and more preferably 60°C or higher.

[0158] 11. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the Tg of the polymer P1 is 80°C or lower, preferably 70°C or lower, more preferably 60°C or lower, more preferably 50°C or lower, more preferably 40°C or lower, and more preferably 30°C or lower.

[0159] 12. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the weight-average molecular weight Mw of said polymer P1 is 3*10 5 g / mol or greater, preferably 4*10 g / mol 5 g / mol or greater, more preferably 5*10 5 g / mol or greater, more preferably 6*10 5 g / mol or greater, more preferably 7*10 5 g / mol or greater, more preferably 8*10 5 g / mol or greater, more preferably 9*10 5 g / mol or greater.

[0160] 13. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the weight-average molecular weight Mw of said polymer P1 is 10 × 10⁻⁶. 5 g / mol or less, preferably 9*10 g / mol 5 g / mol or less, more preferably 8*10 5 g / mol or less, more preferably 7*10 ... 5 g / mol or less, more preferably 6*10 5 g / mol or less, more preferably 5*10 5 g / mol or less, more preferably 4*10 5 g / mol or less.

[0161] 14. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the viscosity value VN of the polymer P1 is 40 ml / g or greater, preferably 60 ml / g or greater, more preferably 80 ml / g or greater, more preferably 100 ml / g or greater, more preferably 120 ml / g or greater, more preferably 140 ml / g or greater, and more preferably 160 ml / g or greater.

[0162] 15. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer P1 has a viscosity value of 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, and more preferably 130 ml / g or less.

[0163] 16. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein compound A comprises the following binding moiety:

[0164] Preferably .

[0165] 17. The polymer composition PC1, use, or method according to any one of the preceding items, wherein compound A is melamine, melamine, benzoguanamine, cyanuric acid diamide, cyanuric acid monoamide, acetylguanidine, or a mixture thereof, preferably melamine, melamine, benzoguanamine, acetylguanidine, or a mixture thereof, more preferably melamine, melamine, or a mixture thereof, even more preferably melamine or melamine, and even more preferably melamine.

[0166] 18. The polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises melamine, preferably composed of melamine.

[0167] 19. The polymer composition PC1, use, or method according to any one of the preceding items, wherein compound A comprises melamine, preferably composed of melamine.

[0168] 20. The polymer composition PC1, use, or method according to any one of the preceding items, wherein compound A comprises benzoguanidine, preferably composed of benzoguanidine.

[0169] 21. The polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises cyanidamide, preferably composed of cyanidamide.

[0170] 22. The polymer composition PC1, use or method according to any one of the preceding items, wherein compound A comprises cyanuric acid monoamide, preferably composed of cyanuric acid monoamide.

[0171] 23. The polymer composition PC1, use, or method according to any one of the preceding items, wherein compound A comprises acetylguanidine, preferably composed of acetylguanidine.

[0172] 24. The 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 groups, preferably H, OH and methyl groups.

[0173] 25. The polymer composition PC1, use, or method according to any one of the preceding items, wherein compound B is a cyanurate ester.

[0174] 26. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the ratio of compound A to compound B is 0.5 or greater, preferably 0.6 or greater, more preferably 0.7 or greater, more preferably 0.8 or greater, more preferably 0.9 or greater, more preferably 1.0 or greater, more preferably 1.1 or greater, more preferably 1.2 or greater, more preferably 1.3 or greater, more preferably 1.4 or greater, more preferably 1.5 or greater.

[0175] 27. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the ratio of compound B to compound A is 0.5 or greater, preferably 0.6 or greater, more preferably 0.7 or greater, more preferably 0.8 or greater, more preferably 0.9 or greater, more preferably 1.0 or greater, more preferably 1.1 or greater, more preferably 1.2 or greater, more preferably 1.3 or greater, more preferably 1.4 or greater, more preferably 1.5 or greater.

[0176] 28. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the decomposition temperature of the mixture M1 is 150°C or higher, more preferably 200°C or higher, more preferably 250°C or higher, more preferably 290°C or higher, more preferably 310°C or higher, more preferably 330°C or higher, more preferably 350°C or higher, more preferably 370°C or higher, more preferably 390°C or higher, more preferably 410°C or higher, more preferably 430°C or higher.

[0177] 29. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the decomposition temperature of the mixture M1 is 450°C or lower, preferably 445°C or lower, more preferably 440°C or lower, more preferably 420°C or lower, more preferably 400°C or lower, more preferably 380°C or lower, more preferably 360°C or lower, more preferably 340°C or lower, and more preferably 320°C or lower.

[0178] 30. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the mixture M1 comprises, preferably, the following: melamine cyanurate, melamine cyanurate, benzoguanamine cyanurate, cyanuric acid diamide cyanurate, cyanuric acid monoamide cyanurate, acetylguanidine cyanurate, or mixtures thereof, preferably melamine cyanurate, melamine cyanurate, benzoguanamine cyanurate, acetylguanidine cyanurate, or mixtures thereof, more preferably melamine cyanurate, melamine cyanurate, or mixtures thereof, and even more preferably melamine cyanurate.

[0179] 31. The 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 filler F1.

[0180] 32. The polymer composition PC1, use or method according to any one of the preceding items, wherein the filler F1 is fiber or bead, preferably fiber, more preferably milled glass fiber.

[0181] 33. The polymer composition PC1, use or method according to any one of the preceding items, wherein the filler F1 is made of glass, preferably glass fiber, glass beads or a mixture thereof, more preferably glass fiber.

[0182] 34. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... arit The value is 40 μm or larger, preferably 50 μm or larger, more preferably 60 μm or larger, more preferably 70 μm or larger, more preferably 80 μm or larger, more preferably 90 μm or larger, more preferably 95 μm or larger, more preferably 100 μm or larger, more preferably 105 μm or larger, more preferably 110 μm or larger, more preferably 120 μm or larger, more preferably 130 μm or larger, more preferably 140 μm or larger, more preferably 150 μm or larger.

[0183] 35. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... aritThe aperture 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.

[0184] 36. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... weight The value is 40 μm or larger, preferably 50 μm or larger, more preferably 60 μm or larger, more preferably 70 μm or larger, more preferably 80 μm or larger, more preferably 90 μm or larger, more preferably 95 μm or larger, more preferably 100 μm or larger, more preferably 105 μm or larger, more preferably 110 μm or larger, more preferably 120 μm or larger, more preferably 130 μm or larger, more preferably 140 μm or larger, more preferably 150 μm or larger, more preferably 160 μm or larger, more preferably 170 μm or larger, more preferably 180 μm or larger, more preferably 190 μm or larger, more preferably 200 μm or larger, more preferably 210 μm or larger, more preferably 220 μm or larger.

[0185] 37. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... weight The aperture 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 1 90 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.

[0186] 38. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the thickness T of the filler F1 is... arit The micrometer size is 2.0 μm or larger, preferably 4.0 μm or larger, more preferably 6.0 μm or larger, more preferably 8.0 μm or larger, more preferably 10.0 μm or larger, more preferably 10.1 μm or larger, more preferably 10.3 μm or larger, more preferably 10.5 μm or larger, more preferably 10.7 μm or larger, more preferably 10.9 μm or larger, more preferably 11.0 μm or larger, more preferably 11.1 μm or larger, more preferably 11.3 μm or larger, more preferably 11.5 μm or larger, more preferably 11.7 μm or larger, more preferably 11.9 μm or larger, more preferably 12.0 μm or larger, more preferably 14.0 μm or larger.

[0187] 39. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the thickness T of the filler F1 is... arit The size 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.

[0188] 40. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... arit With thickness T arit The ratio [μm / μm] is 0.5 or greater, preferably 1.0 or greater, more preferably 3.0 or greater, more preferably 5.0 or greater, more preferably 7.0 or greater, more preferably 9.0 or greater, more preferably 9.2 or greater, more preferably 9.4 or greater, more preferably 9.6 or greater, more preferably 9.8 or greater, more preferably 10.0 or greater, more preferably 10.2 or greater, more preferably 10.4 or greater, more preferably 10.6 or greater, more preferably 10.8 or greater, more preferably 11.0 or greater.

[0189] 41. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... arit With thickness T arit The ratio [μm / μm] 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.

[0190] 42. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... weight With thickness T arit The ratio [μm / μm] is 0.5 or greater, preferably 1.0 or greater, more preferably 3.0 or greater, more preferably 5.0 or greater, more preferably 7.0 or greater, more preferably 9.0 or greater, more preferably 11.0 or greater, more preferably 12.0 or greater, more preferably 13.0 or greater, more preferably 13.5 or greater, more preferably 13.7 or greater, more preferably 14.0 or greater, more preferably 14.5 or greater, more preferably 15.0 or greater, more preferably 15.5 or greater, more preferably 15.7 or greater, more preferably 16.0 or greater, more preferably 16.1 or greater, more preferably 16.3 or greater, more preferably 16.5 or greater, more preferably 16.7 or greater.

[0191] 43. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the length L of the filler F1 is... weight With thickness T aritThe ratio [μm / μm] 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 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.

[0192] 44. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 5% by weight or more, preferably 8% by weight or more, more preferably 10% by weight or more, more preferably 12% by weight or more, more preferably 14% by weight or more, more preferably 16% by weight or more, more preferably 18% by weight or more, more preferably 20% by weight or more, more preferably 25% by weight or more, more preferably 30% by weight or more.

[0193] 45. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the content of the filler F1 in the polymer composition PC1 and / or the mixture M2 is 50% by weight or less, preferably 40% by weight or less, more preferably 30% by weight or less, more preferably 28% by weight or less, more preferably 26% by weight or less, more preferably 24% by weight or less, more preferably 22% by weight or less, more preferably 20% by weight or less, more preferably 15% by weight or less.

[0194] 46. ​​The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the Young's modulus of the polymer composition PC1 is 3.0 GPa or greater, preferably 4.0 GPa or greater, more preferably 4.5 GPa or greater, more preferably 5.0 GPa or greater, more preferably 5.5 GPa or greater, more preferably 5.8 GPa or greater, more preferably 5.9 GPa or greater, more preferably 6.0 GPa or greater, more preferably 6.2 GPa or greater, more preferably 6.4 GPa or greater, more preferably 6.6 GPa or greater.

[0195] 47. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the 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.

[0196] 48. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer composition PC1 exhibits a V-2 rating, more preferably a V-1 rating, and even more preferably a V-0 rating in a UL-94 test using a 1.6 mm sample.

[0197] 49. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer composition PC1 exhibits an afterflame 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 after the first application of flame in the UL-94 test.

[0198] 50. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer composition PC1 exhibits an afterflame 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 after a second application of flame in the UL-94 test.

[0199] 51. The polymer composition PC1, its 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.

[0200] 52. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 do not contain melamine cyanurate, preferably not melamine.

[0201] 53. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the mixing is carried out in an extruder, preferably a twin-screw extruder.

[0202] 54. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the temperature in the mixing step is set to Tm of polymer P1 in °C or higher, preferably Tm of polymer P1 in °C + 10 °C or higher, more preferably Tm of polymer P1 in °C + 20 °C or higher, more preferably Tm of polymer P1 in °C + 30 °C or higher, more preferably Tm of polymer P1 in °C + 40 °C or higher, more preferably Tm of polymer P1 in °C + 50 °C or higher, more preferably Tm of polymer P1 in °C + 60 °C or higher, more preferably Tm of polymer P1 in °C + 70 °C or higher, more preferably Tm of polymer P1 in °C + 80 °C or higher, more preferably Tm of polymer P1 in °C + 90 °C or higher, more preferably Tm of polymer P1 in °C + 100 °C or higher.

[0203] 55. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the temperature in the mixing step is set to Tm of polymer P1 in °C + 200 °C or lower, preferably Tm of polymer P1 in °C + 150 °C or lower, preferably Tm of polymer P1 in °C + 100 °C or lower, preferably Tm of polymer P1 in °C + 90 °C or lower, preferably Tm of polymer P1 in °C + 80 °C or lower.

[0204] 56. The polymer composition PC1, use, or method according to any one of the preceding items, wherein in the mixing step, preferably in the extruder, the throughput of polymer P1 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, and more preferably 5000 kg / h or more.

[0205] 57. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein in the mixing step, preferably in the extruder, the throughput of polymer P1 is 10,000 kg / h or less, preferably 8,000 kg / h or less, more preferably 5,000 kg / h or less.

[0206] 58. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the residence time in the mixing step, preferably the residence time in the extruder, is 10 s or longer, preferably 20 s or longer, more preferably 30 s or longer, more preferably 45 s or longer, more preferably 60 s or longer, more preferably 90 s or longer, more preferably 120 s or longer, more preferably 150 s or longer, more preferably 180 s or longer, more preferably 240 s or longer.

[0207] 59. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the residence time in the mixing step, preferably the residence time in the extruder, is 10,000 s or less, preferably 5,000 s or less, more preferably 2,500 s or less, more preferably 2,000 s or less, more preferably 1,500 s or less, more preferably 1,000 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.

[0208] 60. Preferably, the polymer composition PC1, its use, or the method according to any one of the preceding items, wherein the method comprises the following steps:

[0209] The polymer composition PC1 is converted, preferably molded, according to any one of the foregoing items and / or obtainable by or through any one of the foregoing items, to obtain the polymer product PP1.

[0210] 61. The polymer composition PC1, its use, or method according to any one of the preceding items, wherein the polymer composition PC1 and / or mixture M2 comprises, preferably, the following: polymer P1, mixture M1, preferably filler F1, and preferably one or more additives A1; preferably, wherein the polymer composition PC1 and / or mixture M2 comprises, preferably, the following in weight percent:

[0211] Polymer P1 with a content of 1 to 99, preferably 50 to 90, more preferably 60 to 80,

[0212] A mixture M1 of 1 to 30, preferably 2 to 20, more preferably 4 to 12.

[0213] 0 to 50, preferably 5 to 40, more preferably 15 to 30, of filler F1, and

[0214] One or more additives A1, ranging from 0 to 30, preferably from 0 to 10, and more preferably from 0.3 to 5.

[0215] 62. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the one or more additives A1 are selected from antioxidants, stabilizers, lubricants, minerals, chain extenders, impact modifiers, colorants, pigments, soot, carbon black, talc, and mixtures thereof.

[0216] 63. Polymer product PP1, comprising a polymer composition PC1 as described in any of the preceding items and / or obtainable by or through the method described in any of the preceding items.

[0217] 64. The polymer composition PC1, polymer product PP1, use, or method according to any one of the preceding items, wherein said polymer composition PC1 and / or said polymer product PP1 is or is a component of the following:

[0218] - Automotive parts; preferably cylinder head covers, engine hoods, turbocharger housings, turbocharger baffles, intake pipes, intake manifolds, connectors, gears, fan wheels, coolant tanks, heat exchanger housings, housing components, coolant coolers, turbocharger housings, thermostats, water pumps, radiators, fasteners, components for battery systems in electric vehicles, instrument panels, steering column switches, seats, headrests, center consoles, transmission components, door modules, A, B, C, or D pillar covers, spoilers, door handles, exterior rearview mirrors, windshield wipers, windshield wiper protective housings, decorative grilles, cover strips, roof rails, window frames, sunroof frames, antenna panels, headlights and taillights, engine hoods, cylinder head covers, intake manifolds, airbags, cushioning pads or coatings;

[0219] - Fabric; preferably shirts, trousers, sweaters, boots, shoes, shoe soles, tights or jackets;

[0220] - Electrical components; preferably electrical or electronic passive or active components, circuit boards, printed circuit boards, housing components, foils, wires, switches, plugs, sockets, distributors, relays, resistors, capacitors, inductors, spools, lamps, diodes, LEDs, transistors, connectors, voltage regulators, integrated circuits (ICs), processors, controllers, memory, sensors, microswitches, microbuttons, semiconductors, reflector housings for light-emitting diodes (LEDs), fasteners, gaskets, bolts, strips, slide-in guides, screws, nuts, membrane hinges, spring hooks (snap-in type) or spring tongues;

[0221] - Consumer goods, agricultural products, or pharmaceutical products; preferably tennis strings, climbing ropes, bristles, brushes, artificial turf, 3D printed filaments, lawnmowers, zippers, hook and loop fasteners, paper machine fabrics, extrusion coatings, fishing lines, fishing nets, offshore lines and ropes, vials, syringes, ampoules, bottles, sliding elements, spindle nuts, chain conveyors, sliding bearings, rollers, wheels, gears, ring gears, screws and spring dampers, hoses, pipes, cable sheaths, sockets, switches, cable ties, fan wheels, carpets, cosmetic boxes or bottles, mattresses, cushions, insulating materials, detergents, dishwasher tablets or powders, shampoos, bath products, bath gels, soaps, fertilizers, fungicides, or insecticides;

[0222] - Packaging for the food industry; preferably single-layer or multi-layer blown film, cast film (single-layer or multi-layer), biaxial stretch film, or laminated film; or

[0223] - Building components; preferably rotor blades, insulation materials, frames, housings, walls, coatings, or partition walls.

[0224] 65. Use of the polymer composition PC1 according to any one of the preceding items and / or the polymer product PP1 according to any one of the preceding items in a recycling process, preferably a mechanical or chemical recycling process, more preferably a depolymerization, gasification and / or pyrolysis process.

[0225] 66. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 do not contain melamine cyanurate, preferably not melamine.

[0226] 67. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 do not contain acetylguanidine cyanurate, preferably not acetylguanidine.

[0227] 68. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the polymer composition PC1 and / or the mixture M2 do not contain benzoguanamine cyanurate, preferably not benzoguanamine.

[0228] 69. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the content of the polymer composition PC1 and / or the mixture M2 is 1% by weight or more, preferably 3% by weight or more, more preferably 5% by weight or more, more preferably 8% by weight or more, more preferably 10% by weight or more, more preferably 12% by weight or more.

[0229] 70. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the content of the polymer composition PC1 and / or the mixture M1 in the mixture M2 is 30% by weight or less, preferably 25% by weight or less, more preferably 20% by weight or less, more preferably 15% by weight or less, more preferably 12% by weight or less, and more preferably 10% by weight or less.

[0230] 71. The 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 chopped glass fibers.

[0231] 72. The 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% by weight, preferably 20% by weight, more preferably 10% by weight, more preferably 5% by weight, more preferably 3% by weight, more preferably 2% by weight, more preferably 1% by weight of any other polymer besides polymer P1, and preferably does not contain any other polymer besides polymer P1.

[0232] 72. The polymer composition PC1, use, or method according to any one of the preceding items, wherein the decomposition temperature is measured as disclosed in the specification. Example

[0233] The present invention is further illustrated by the following embodiments.

[0234] Polymer 1: PA6 (ULT B27, BASF)

[0235] Polymer 2: TPU (Elastollan 1185 A, BASF)

[0236] Flame retardant 1: Melamine cyanurate (1:1, synthesized according to procedure 1)

[0237] Flame retardant 2: melamine cyanurate (1:1, synthesized according to procedure 2)

[0238] Flame retardant 3: Meleramine cyanurate (1:1, synthesized according to procedure 3)

[0239] Flame retardant 4: benzoguanamine cyanurate (1:1, synthesized according to procedure 4)

[0240] Flame retardant 5: cyanuric acid diamide cyanurate (1:1, synthesized according to procedure 5)

[0241] Flame retardant 6: cyanuric acid amide cyanurate (1:1, synthesized according to procedure 6)

[0242] Flame retardant 7: Acetylguanidine cyanurate (1:1, synthesized according to procedure 7)

[0243] General procedure A for forming flame-retardant triazine complexes (laboratory grade) :

[0244] One equivalent of triazine and one equivalent of cyanuric acid were dispersed in 100 ml of water and heated under reflux for 4 hours. The reaction mixture was then cooled to room temperature and filtered. The precipitate was washed three times with 100 ml of water and dried under vacuum at 80 °C for 12 hours.

[0245] Program 1 :

[0246] According to general procedure A, 20.00g of melamine and 20.47g of cyanuric acid are reacted.

[0247] Program 2 :

[0248] According to general procedure A, 20.00g of melamine and 10.98g of cyanuric acid are reacted.

[0249] Program 3 :

[0250] According to general procedure A, 20.00g of meliamine and 11.83g of cyanuric acid are reacted.

[0251] Program 4 :

[0252] According to general procedure A, 20.00 g of guanidine and 13.79 g of cyanuric acid are reacted.

[0253] Program 5 :

[0254] According to general procedure A, 5.00 g of cyanuric acid diamide and 5.08 g of cyanuric acid are reacted.

[0255] Program 6 :

[0256] According to general procedure A, 5.00 g of cyanuric acid monoamide and 5.04 g of cyanuric acid are reacted.

[0257] Program 7 :

[0258] According to general procedure A, 20.00g of acetylguanidine and 20.63g of cyanuric acid are reacted.

[0259] Determine the following decomposition temperatures :

[0260]

[0261] Filler 1: Glass fiber, 210μm, length L arit 10.5μm thickness Tarit (Schwarzwaelder Textil-WerkeHeinrich Kautzmann GmbH)

[0262] Filler 2: Glass fiber, 160μm, length L arit 13.0μm thickness T arit (Profill GmbH)

[0263] Filler 3: Glass beads, 106 μm in length (diameter) L arit (Potters Ballotini GmbH)

[0264] Additive 1: Calcium stearate (Baerlocher GmbH)

[0265] Additive 2: Ethylene bis-stearamide (Arxada Services AG)

[0266] Compounding was performed on an Xplore 15 micro-compounder or a twin-screw extruder ZE25 (Fa. Berstorff). All components listed in Table 1 were added via a feed funnel to a preheated apparatus and mixed at 80 rpm for three minutes. The polymer composition containing polymer 1 was processed at 260°C. The polymer composition containing polymer 2 was processed at 5°C. The axial force of the compounder after three minutes was recorded, which is related to the viscosity of the compound at the compounding temperature. The components were compounded at a material temperature of 270°C to 290°C at a throughput of 7.5 kg / h. The melt was discharged as a filament, cooled, and granulated.

[0267] Table 1 summarizes the results for the polymer compositions.

[0268]

Claims

1. A polymer composition PC1, comprising: Polymer P1, M1 is a mixture containing compound A and compound B. Compound A includes triazine, and Compound B is a compound of formula (1): (1)， R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

2. The polymer composition PC1 according to claim 1, comprising: Polymer P1, M1 is a mixture containing compound A and compound B. Compound A includes triazine, and Compound B is a compound of formula (1): (1)， R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and Filler F1, wherein the filler F1 is glass fibers, and wherein the length L of the filler F1 arit a ratio [pm / pm] of the thickness T arit 0.5 or more and 8.6 or less; and The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

3. The polymer composition PC1 according to claim 1 or 2, wherein the decomposition temperature of mixture M1 is 200°C or higher, preferably 250°C or higher, more preferably 290°C or higher, and even more preferably 310°C or higher; and / or 445°C or lower, preferably 440°C or lower, more preferably 420°C or lower, more preferably 400°C or lower, more preferably 380°C or lower, more preferably 360°C or lower, more preferably 340°C or lower, more preferably 320°C or lower.

4. The polymer composition PC1 according to any one of the preceding claims, wherein compound A is melamine, melamine, benzoguanamine, cyanuric acid diamide, cyanuric acid monoamide, acetylguanidine, or a mixture thereof, preferably melamine, melamine, benzoguanamine, acetylguanidine, or a mixture thereof, more preferably melamine, melamine, or a mixture thereof, even more preferably melamine or melamine, and even more preferably melamine.

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

6. The 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 groups, preferably H, OH and methyl; preferably wherein compound B is a cyanurate ester.

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

8. The polymer composition PC1 according to any one of the preceding claims, wherein the polymer composition PC1 exhibits a V-2 rating, more preferably a V-1 rating, and more preferably a V-0 rating in a UL-94 test using a 1.6 mm sample; and / or The polymer composition PC1 described therein includes improved flame retardancy, improved mechanical properties, and / or improved environmental compatibility.

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

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

11. A method for preparing polymer composition PC1, preferably polymer composition PC1 according to any one of the preceding claims, comprising the following steps: Mixture M2, which contains polymer P1 and preferably mixture M1, is mixed with filler F1 to obtain polymer composition PC1; The mixture M1 contains compounds A and B. Compound A includes triazine, and Compound B is a compound of formula (1): (1)， R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

12. Preferably, the method according to claim 11, wherein the method comprises the following steps: The polymer composition PC1 according to any one of claims 1 to 10 and / or obtainable by the method according to claim 11 is converted or preferably molded to obtain the polymer product PP1.

13. A polymer product PP1 comprising a polymer composition PC1 as described in any one of claims 1 to 10 and / or obtained by or obtainable by the method described in 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 a mechanical or chemical recycling process, more preferably a depolymerization, gasification and / or pyrolysis process.

15. The use of a mixture M1 comprising compound A and compound B as an additive, preferably as a flame retardant and / or modifier, in a polymer composition PC1. Compound A includes triazine, and Compound B is a compound of formula (1): (1)， R1 to R3 are independently selected from H, OH, CN, NH2, and moieties containing 1 to 20 carbon atoms; and The decomposition temperature of mixture M1 is 150°C or higher and 450°C or lower.

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