Flame-Retardant Polyester Compounds

A process for producing a flame-retardant compounded polyester material comprising the step of mixing the flame-retardant compounded polyester by extrusion in the melt, wherein flame retardant compounded polyester comprises as component A, from 40 to 89.9% by weight of thermoplastic polyester, as component B, from 5 to 25% by weight of phosphinic salt of the formula (V), a diphosphinic salt of the formula (VI), polymers of these or a combination therefrom

• wherein
• R1 and R2 are identical or different and are H or C1-C6-alkyl, linear or branched aryl or a mixture thereof;
• R3 is C1-C10-alklene linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene;
• M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, a protonated nitrogen base or a mixture thereof;
• m is from 1 to 4;
• n is from 1 to 4;
• x is from 1 to 4,
• and, as component C, from 5 to 25% by weight of a phosphazene of the formula (I) or (II)
• wherein R4 and R4′ are identical or different and are C1-C20-alkyl, C6-C30-aryl, C6-C30-arylalkyl, or C6-C30-alkyl substituted aryl;
• as component D, from 0 to 15% by weight of reaction products of melamine with phosphoric acid or with condensed phosphoric acids, or reaction products of condensates of melamine with phosphoric acid, with condensed phosphoric acids, a nitrogen-containing flame retardant other than the abovementioned or a mixture thereof;
• as component E, from 0 to 45% by weight of reinforcing materials, and, as component F, from 0.1 to 3% by weight of further additives, where the entirety of the components gives 100% by weight.

A fiber, foil, molding, or molded part made of a flame-retardant compounded polyester material, wherein the flame retardant compounded polyester material comprises as component A, from 40 to 89.9% by weight of thermoplastic polyester, as component B, from 5 to 25% by weight of phosphinic salt of the formula (V), a diphosphinic salt of the formula (VI), polymers of these or a combination therefrom

• wherein
• R1 and R2 are identical or different and are H or C1-C6-alkyl, linear or branched aryl or a mixture thereof;
• R3 is C1-C10-alkylene linear or branched, C6-C10-arylene -alkylarylene or -arylalkylene;
• M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, a protonated nitrogen base or a mixture thereof;
• m is from 1 to 4;
• n is from 1 to 4;
• x is from 1 to 4,
• and, as component C, from 5 to 25% by weight of a phosphazene of the formula (I) or (II)
• wherein R4 and R4′ are identical or different and are C1-C20-alkyl, C6-C30-aryl, C6-C30-arylalkyl, or C6-C30-alkyl substituted aryl;
• as component D, from 0 to 15% by weight of reaction products of melamine with phosphoric acid or with condensed phosphoric acids, or reaction products of condensates of melamine with phosphoric acid, with condensed phosphoric acids, a nitrogen-containing flame retardant other than the abovementioned or a mixture thereof;
• as component E, from 0 to 45% by weight of reinforcing materials, and, as component F, from 0.1 to 3% by weight of further additives, where the entirety of the components gives 100% by weight.

A switch, insulation system, lamp socket, coil former, housing, control system having a fiber, foiling or molding wherein the fiber, foiling or molding comprises a flame-retardant compounded polyester, wherein the flame-retardant compounded polyester comprises, as component A, from 40 to 89.9% by weight of thermoplastic polyester, as component B, from 5 to 25% by weight of phosphinic salt of the formula (V), a diphosphinic salt of the formula (VI), polymers of these or a combination therefrom

• wherein
• R1 and R2 are identical or different and are H or C1-C6-alkyl, linear or branched aryl or a mixture thereof;
• R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene;
• M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, a protonated nitrogen base or a mixture thereof;
• m is from 1 to 4;
• n is from 1 to 4;
• x is from 1 to 4, and, as component C, from 5 to 25% by weight of a phosphazene of the formula (I) or (II)
• wherein R4 and R4′ are identical or different and are C1-C20-alkyl, C6-C30-aryl, C6-C30-arylalkyl, or C6-C30-alkyl substituted aryl;
• as component D, from 0 to 15% by weight of reaction products of melamine with phosphoric acid or with condensed phosphoric acids, or reaction products of condensates of melamine with phosphoric acid, with condensed phosphoric acids, a nitrogen-containing flame retardant other than the abovementioned or a mixture thereof;
• as component E, from 0 to 45% by weight of reinforcing materials, and, as component F, from 0.1 to 3% by weight of further additives, where the entirety of the components gives 100% by weight.

A domestic article, industrial article, medicinal article, in motor vehicle, aircraft, ship, spacecraft, office interior wherein the motor vehicle, aircraft, ship, spacecraft, office interior comprises a fiber, foil, molding or molded part comprises a flame retardant compounded polyester, wherein the flame-retardant compounded polyester comprises, as component A, from 40 to 89.9% by weight of thermoplastic polyester, as component B, from 5 to 25% by weight of phosphinic salt of the formula (V), a diphosphinic salt of the formula (VI), polymers of these or a combination therefrom

• wherein
• R1 and R2 are identical or different and are H or C1-C6-alkyl, linear or branched aryl or a mixture thereof;
• R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene;
• M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, a protonated nitrogen base or a mixture thereof;
• m is from 1 to 4;
• n is from 1 to 4;
• x is from 1 to 4,
• and, as component C, from 5 to 25% by weight of a phosphazene of the formula (I) or (II)
• wherein R4 and R4′ are identical or different and are C1-C20-alkyl, C6-C30-aryl, C6-C30-arylalkyl, or C6-C30-alkyl substituted aryl;
• as component D, from 0 to 15% by weight of reaction products of melamine with phosphoric acid or with condensed phosphoric acids, or reaction products of condensates of melamine with phosphoric acid, with condensed phosphoric acids, a nitrogen-containing flame retardant other than the abovementioned or a mixture thereof;
• as component E, from 0 to 45% by weight of reinforcing materials, and, as component F, from 0.1 to 3% by weight of further additives, where the entirety of the components gives 100% by weight.