Patent ID: 8188172

Claim:
A composition comprising: (a) from 20 to 80 wt % of a polyester; (b) from 5 to 35 wt % of a flame retardant phosphinate of the formula (I) [(R 1 )(R 2 )(PO)—O] − m M m+ (I) a flame retardant diphosphinate of the formula (II) [(O—POR 1 )(R 3 )(POR 2 —O)] 2− n M x m+ (II), and/or a flame retardant polymer derived from the flame retardant phosphinate of the formula (I) or the flame retardant diphosphinate of the formula (II), wherein R 1 and R 2 are identical or different and are H, C1-C6-alkyl, linear or branched, and/or aryl; R 3 is C1-C10, alkylene, linear or branched, C6-C10-arylene, -alkylarylene or -arylalkylene; M is an alkaline earth metal, alkali metal, Al, Ti, Zn, Fe, boron; m is 1, 2, 3 or 4; n is 1, 2, or 3; and x is 1 or 2; (c) from 1 to 25 wt % of a melamine polyphosphate, melamine cyanurate, melamine pyrophosphate, and/or melamine phosphate; and (d) from about 2 to about 8 wt % of a polyetherimide; (e) a quencher component selected from the group consisting of from 0.1 to 1 wt % of poly(methyl hydrogensiloxane), from 0.1 to 1 wt % 3-aminopropyl trialkoxysilane, and mixtures of ZnS and ZnO, wherein the ZnO is present in an amount of less than 50 wt % of the mixture, and combinations thereof; wherein an article molded or extruded from the composition has a heat deflection temperature that is equal to or greater than 190° C. and an unnotched Izod impact strength from to 25 to 50 kJ/m 2 measured at 23° C. in accordance with ISO 180, and a 0.8 mm thick molded sample comprising the composition has a UL-94 flammability rating of V0; wherein components (a), (b), (c), (d), (e) and optionally an additive component have a combined total weight of 100 wt %.