Abstract:
The invention relates to a polymer foam having a density in the range between 5 and 120 kg/m3, containing a) a polymer component, containing at least one styrene polymer, b) 0.1 to 5 parts by weight (relative to 100 parts by weight of component a)) of a flame retardant mixture, containing b1) at least one phosphorus compound of formula (I) having a phosphorus content in the range between 5 and 80% by weight, relative to the phosphorus compound, (X1)s =PR1R2R3 (I), where the symbols and indices in formula (I) have the following meanings: R1 is C1-C16-alkyl, C1-C10-hydroxyalkyl, C2-C16-alkenyl, C1-C16-alkoxy, C2-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, SR9, COR10, COOR11, CONR12R13; R2 is C1-C16-alkyl, C1-C10-hydroxyalkyl, C2-C16-alkenyl, C1-C16-alkoxy, C2-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryl-C1-C16-alkyl,C6-C10-aryl-C1-C16-alkoxy, SR9, COR10, COOR11, CONR12R13;R3 is H, SH, SR4, OH, OR5 or a group 30 -(Y1)n-[P(= X2)uR6 -(Y2)n]m-P(= X3)tR7R8; or two groups R1, R2, R3 together with the phosphorus atom to which they are bound form a ring system; X1, X2 and X3 are independently of each other identically or differently O or S; Y1, Y2 are identically or differently O or S; R4, R5, R9, R10, R11, R12,R13 are identically or differently C1-C12-alkyl, C3-C8-cycloalkyl, which is unsubstituted or substituted by one or more C1-C4-alkyl groups, C2-C12-alkenyl, C2-C12-alkinyl, C6-C10-aryl or C6-C10-aryl C1-C4-alkyl; R6, R7, R8 are independently of each other identically or differently C1-C16-alkyl, C1-C16-alkenyl, C1-C16-alkoxy, C1-C16-alkenoxy, C3-C10-cycloalkyl, C3-C10-cycloalkoxy, C6-C10-aryl, C6-C10-aryloxy, C6-C10-aryl-C1-C16-alkyl, C6-C10-aryl-C1-C16-alkoxy, SR9, COR10, COOR11, CONR12R13; n is 1, if Y1 or Y2 is O, and 1, 2, 3, 4, 5, 6, 7 or 8, if Y1 or Y2 is S; m is a whole number between 0 and 100; s, t and u are independently of each other 0 or 1; and b2) elementary sulphur.
Abstract:
The invention relates to an expandable styrene polymer containing 0.2 to 30.0 percent by weight of at least one homogeneously distributed triazine derivative, the percentage being relative to the expandable styrene polymer, a method for the production thereof using a coextrusion process, an expanded styrene polymer containing 0.2 to 30.0 percent by weight of at least one homogeneously distributed triazine derivative, the percentage being relative to the expanded styrene polymer, and a foam that can be made from said expandable styrene polymer.
Abstract:
The invention relates to a method for producing expandable granulates containing polylactic acid, comprising the following steps: a) melting and mixing the constituents i) between 50 and 99.9 wt. %, relative to the total weight of constituents i) to iii), of polylactic acid, ii) between 0 and 49.9 wt. %, relative to the total weight of constituents i) to iii), of at least one other polymer, iii) between 0.1 and 2 wt. %, relative to the total weight of constituents i) to iii), of a diepoxide or polyepoxide, and iv) between 0 and 10 wt. % of at least one additive, b) mixing v) between 3 and 7 wt. %, relative to the total weight of constituents i) to iv), of an organic blowing agent, into the melted polymer mass, by means of a static or dynamic mixer, at a temperature of at least 40°C, c) discharging the mixture via a nozzle plate with boreholes having a maximum on the nozzle outlet diameter of 1.5 mm, and d) granulating the melted mass containing the blowing agent directly behind the nozzle plate, under water, at a pressure of between 1 and 20 bar. The invention also relates to expandable granulates containing polylactic acid, that can be obtained according to said method, and to special expandable granulates containing polylactic acid, and between 3 and 7 wt. % of an organic blowing agent, preferably n-pentane, and especially preferably iso-pentane. The invention also relates to a preferred method for producing expandable granulates containing polylactic acid and a blowing agent, with a low bulk density.
Abstract:
La invención se refiere a un sistema pirorretardante que consiste en: a) al menos un compuesto de azufre de la fórmula (1), donde las definiciones de los símbolos e índice son como sigue: R, siendo idéntico o diferente, preferentemente idéntico, es arilo de C6-C12, un grupo heteroarilo de 5-10 miembros el cual contiene uno o más heteroátomos del grupo de N, O y S, alquilo de C1-C18 alquenilo de C2-C18, alquinilo de C3-C18 o cicloalquilo de C3-C10 X, siendo idéntico o diferente, preferentemente idéntico, es OR2, SR2, NR2R3, COOR2, CONR2, S02R2, F, CI, Br, R, H, o un grupo Y1-P(Y2)PR'R"; y1 es o S, o NR'''; Y2 es O o S; p es 0 o 1; R' and R'', siendo idénticos o diferentes, preferentemente idénticos, son alquilo de C1-C18, alquenilo de C2-C18, alquinilo de C2-C18, arilo de C6-C12, cicloalquilo de C3-C10, aril de C6-C12-aiquiio de C1-C18, un grupo heteroarilo o grupo heteroariloxi el cual contiene uno o más heteroátomos del grupo de N, O y S, O- alquilo- (de C1-C18)-, 0-alquenilo- (de C2-C18) -, O- alquinilo- (de C2-C10)-, O-arilo- (de C6-C12) -, O-cicloalquiio-(de C3-C10)- o aril(de C6-C12)-alquil-(de C1-C18)-O; R''' es H, alquilo de C1-C18, o (P(Y2)pR'R'') ; siendo idéntico o diferente, preferentemente idéntico, es alquilo de C1-C18, alquenilo de C2-C18, alquinilo de C2-C18, C6-C12-aril, C3-C10-cicloalquil, aril de C6-C12-alquilo de C1-C18, un grupo heteroarilo el cual contiene uno o más heteroátomos del grupo de N, O y S, O-alquilo (de C1-C18), 0-alquenilo- (C2-018) -, O-alquinilo de (C3-C18) -, O-arilo de (C6-C12) -, 0-cicloalquilo- (C3-C10) -, aril (de C6-C12) - alquilo (de C1-C18) -O, S-alquilo- (C1-C18) -, S-alquenilo (de C1-C18), S-alquinilo (de C2-C18) -, S-arilo (de C6-C12) -, S- cicloalquilo (de 03-do) -, aril (de C6-C12) -alquilo (de C1-C18)-S, OH, F, Cl, Br o H; R2 y R3, siendo idénticos o diferentes, preferentemente idénticos, son H, alquilo de C1-C18, alquenilo de C2-C18, alquinilo de C2-C18, arilo de C6-C12, cicloalquilo de C3-C10, arilo de C6-C12-alquilo deC1-C18, o un grupo heteroarilo el cual contiene uno o más heteroátomos del grupo de N, O y S; n es un entero de 1 a 8, y m es un número de 1 a 1000; b) al menos un compuesto organofosforoso libre de halógeno con un contenido de fósforo en el intervalo desde 0.5 hasta 40% en peso, con base en el compuesto de fósforo.
Abstract:
La invención se refiere al uso de compuestos fosforosos de la fórmula (I) como un pirorretardante, en donde los símbolos de la fórmula (I) tienen los siguientes significados: un grupo Y es -P(=X2)sR3R4, H, un grupo alquilo de C1-C12 de cadena recta o ramificada, cicloalquilo de C5-C6, arilo de C6-C12, bencilo, en donde los cuatro últimos grupos citados son sin sustituir o sustituidos por uno o más radicales del grupo alquilo de C1-C4 o alquenileno de C2-C4; R1, R2, R3 y R4 son el mismo o diferente hidrógeno, OH, alquilo de C1-C16, alquenilo de C2-C16, alcoxi de C1-C16, alquenoxi de C2-C6, cicloalquilo de C3-C6, cicloalcoxi de C3-C10, arilo de C6-C10, ariloxi de C6-C10, arilo de C6-C10-alquilo de C1-C16, arilo de C6-C10-alcoxi de C1-C16, SR9 COR10, COOR11, CONR12R13, o dos radicales R1, R2, R3, R4 forman un sistema en el anillo junto con el átomo fosforoso al cual se unen o el grupo P-O-A-O-P; R5, R6, R7, y R8 son el mismo o diferente H, alquilo de C1-C16, alquenilo de C2-C16, alcoxi de C1-C16, alquenoxi de C2-C16, R9, R10, R11, R12 y R13 son el mismo o diferente H d-de-alquilo, alquenilo de C2-C16, arilo de C6-C10, arilo de C6-C10-alquilo de C1-C16, arilo de C6-C10-alcoxi de C1-C16 X1 y X2 son el mismo o diferente S u O; r y s son el mismo o diferente 0 ó 1, y X3, X4, X5 y X6 son el mismo o diferente S u O y n es un número entero de 1 a 50.
Abstract:
La invención se refiere a una espuma polimérica que tiene una densidad en el rango entre 5 y 120 kg/m3, conteniendo a) un componente polimérico, conteniendo por lo menos un polímero de estireno, b) 0.1 a 5 partes en peso (relativo a 100 partes en peso de componente a)) de una mezcla retardadora de llama, conteniendo b1) por lo menos un compuesto fosforoso de la fórmula (I) teniendo un contenido fosforoso en el rango entre 5 y 80% en peso, relativo al compuesto fosforoso, (X1)S=PR1R2R3 (I), en donde los símbolos e índices en la fórmula (I) tienen los siguientes significados: R1 es alquilo de C1-C6, hidroxialquilo de C1-C10, alquenilo de C2-C16, alcoxi de C1-C16, alquenoxi de C2-C16, cicloalquilo de C3-C10, cicloalcoxi de C3-C10, arilo de C6-C10, ariloxi de C6-C10, arilo de C6-C10-alquilo de C1-C16, arilo de C6-C10-alcoxi de C1-C16, SR9, COR10, COOR11, CONR12R13; R2 es alquilo de C1-C16, hidroxialquilo de C1-C10, alquenilo de C2-C16, alcoxi de C1-C16, alquenoxi de C2-C16, ciclo-alquilo de C3-C10, cicloalcoxi de C3-C10, arilo de C6-C10, arilo de C6-C10-alquilo de C1-C16, arilo de C6-C10-alcoxi de C1-C16, SR9, COR10, COOR11, CONR12R13; R3 es H, SH, SR4, OH, OR5 o un grupo 30 - (Y1)n[P(=X2)uR6-(Y2)n]mP(=X3)tR7R8; o dos grupos R1, R2, R3 juntos con el átomo fosforoso al cual se unen forman un sistema de anillo; x1, x2 y X3 son independientemente uno del otro de manera idéntica o diferente O o S; Y1, Y2 son de manera idéntica o diferente O o S; R4, R5, R9, R10, R11, R12, R13 son de manera idéntica o diferente alquilo de C1-C12, cicloalquilo de C3-C8, que es no sustituido o sustituido por uno o más grupos alquilo de C1-C4, alquenilo de C2-C12, alquinilo de C2-C12, arilo de C6-C10 o arilo de C6-C10-alquilo de C1-C4; R6, R7, R8 son independientemente uno del otro de manera idéntica o diferente arilo de C6-C10-alquilo de C1-C16, arilo de C6-C10-alcoxi de C6-C10, SR9, COR10, COOR11, CONR12R13; n es 1, si Y1 o Y2 es O, y 1, 2, 3, 4, 5, 6, 7 u 8, si Y1 o Y2 es S; m es un número entero entre 0 y 100; s, t y u son independientemente uno del otro 0 ó 1; y b2) azufre elemental.
Abstract:
The invention relates to a method for producing expandable granulates containing polylactic acid, comprising the following steps: a) melting and mixing the constituents i) between 50 and 99.9 wt. %, relative to the total weight of constituents i) to iii), of polylactic acid, ii) between 0 and 49.9 wt. %, relative to the total weight of constituents i) to iii), of at least one other polymer, iii) between 0.1 and 2 wt. %, relative to the total weight of constituents i) to iii), of a diepoxide or polyepoxide, and iv) between 0 and 10 wt. % of at least one additive, b) mixing v) between 3 and 7 wt. %, relative to the total weight of constituents i) to iv), of an organic blowing agent, into the melted polymer mass, by means of a static or dynamic mixer, at a temperature of at least 40°C, c) discharging the mixture via a nozzle plate with boreholes having a maximum on the nozzle outlet diameter of 1.5 mm, and d) granulating the melted mass containing the blowing agent directly behind the nozzle plate, under water, at a pressure of between 1 and 20 bar. The invention also relates to expandable granulates containing polylactic acid, that can be obtained according to said method, and to special expandable granulates containing polylactic acid, and between 3 and 7 wt. % of an organic blowing agent, preferably n-pentane, and especially preferably iso-pentane. The invention also relates to a preferred method for producing expandable granulates containing polylactic acid and a blowing agent, with a low bulk density.