Abstract: Disclosed herein is a flame retardant composition comprising 20 to 80 weight percent of a polycarbonate; 1 to 20 weight percent of a halogenated phenoxyphosphazene flame retardant, where all weight percents are based on a total weight of the flame retardant composition. Disclosed herein too is a method comprising blending a 20 to 80 weight percent of a polycarbonate; and 1 to 20 weight percent of a halogenated phenoxyphosphazene flame retardant to produce a flame retardant composition, where all weight percents are based on a total weight of the flame retardant composition.

Abstract: In various aspects, the disclosure relates to reinforced thermoplastic compositions exhibiting improved physical properties as well as thin wall flame resistance. The reinforced thermoplastic compositions comprise polycarbonate polymer, a filler, and a polyolefin elastomer.

Abstract: A polymer composition includes: about 20 wt % to about 80 wt % of a polycarbonate polymer; about 1 wt % to about 20 wt % of a polycarbonate-siloxane copolymer; about 15 wt % to about 35 wt % of a reinforcing filler having a tensile modulus of at least about 150 GPa; and about 4 wt % to about 20 wt % of a flame retardant comprising phosphorous. The polymer composition demonstrates a flexural modulus in an amount equal to or greater than about 10 GPa. Methods of forming a polymer composition and blended thermoplastic compositions are also described.

Abstract: A composition includes specific amounts of an aromatic polycarbonate, a polycarbonate-polysiloxane block copolymer, a poly(alkylene terephthalate), a flame retardant, and a drip retardant. The flame retardant includes an oligomeric or polymeric bis(aryloxy)phosphazene in combination with an organophosphine oxide, an oligomeric or polymeric aromatic phosphonate, or a combination thereof. The composition is useful for fabricating parts for electrical and electronic devices.

Abstract: The invention concerns polymer compositions comprising 20-80 weight percent polycarbonate polymer, 15-40 weight percent filler and 4-20% flame retardant and articles comprising same.

Abstract: A polyester composition includes specific amounts of a poly(alkylene terephthalate), an impact modifier, glass fibers, and a flame retardant. The impact modifier includes a polyolefin elastomer, optionally in combination with a thermoplastic polyester elastomer. The flame retardant includes a metal dialkylphosphinate, a melamine based flame retardant, and a flame retardant synergist that can be an organophosphine oxide, an oligomeric or polymeric bis(phenoxy)phosphazene, an organophosphate ester, or a combination thereof. The composition is useful for fabricating parts for electrical and electronic devices.

Abstract: Disclosed herein are blended thermoplastic compositions and methods relating to the same. In an aspect, a composition can comprise from about 20 wt % to about 90 wt % of a polybutylene terephthalate component; a second component comprising one or more of: from greater than about 0 wt % to about 40 wt % of a polyester component, from greater than about 0 wt % to about 30 wt % of a resorcinol-based aryl polyester component having greater than or equal to 40 mole % of its moieties derived from resorcinol, from greater than about 0 wt % to about 30 wt % of a polyetherimide component, and from greater than about 0 wt % to about 30 wt % of a polycarbonate component; from about 10 wt % to about 60 wt % of a filler component.

Abstract: Disclosed herein are flame retardant polyalkylene terephthalate compositions that employ reduced amounts of organo-halide as flame retardants (FR), wherein the composition comprises: (a) a polyalkylene terephthalate; (b) an organo-bromo flame retardant (FR) agent; (c) an antimony synergist; (d) an organo phosphate ester phosphorous flame retardant compound; (e) talc; and (f) sodium or potassium carbonate. In addition to being characterized by the presence of a phosphorous containing flame retardant compound and sodium or potassium carbonate, the compositions of the present inventions contain reduced amounts of organo-bromo FR agent and/or antimony FR synergist and have excellent flame retardant properties.

Abstract: This disclosure relates to halogen-free flame retardant polycarbonate/thermoplastic polyester molding compositions with improved mechanical properties and increased polyester loading level. More particularly, the disclosure relates to halogen-free polycarbonate/thermoplastic polyester resin alloys with polymeric phosphorus flame retardant additive and siloxane impact modifier. Also included are methods for preparing such compositions and articles there from.

Abstract: The invention concerns polymer compositions comprising 20-80 weight percent polycarbonate polymer, 15-40 weight percent filler and 4-20% flame retardant and articles comprising same.

Abstract: Disclosed herein is a method of reducing the amount of antimony flame retardant compound in a flame retardant composition which comprises using calcium oxide or a combination of talc and calcium oxide as a filler in the composition, wherein the composition comprises specific amounts of a polyester, a brominated flame retardant compound, an antimony flame retardant compound, and a filler comprising calcium oxide or a combination of talc and calcium oxide. Also disclosed are compositions prepared by such a method and articles derived therefrom.

Abstract: A composition includes specific amounts of a poly(butylene terephthalate), a reinforcing filler, and a polycarbonate that includes a copolyestercarbonate and a polycarbonate-polydiorganosiloxane block copolymer. The copolyestercarbonate includes aliphatic ester groups. The composition, which exhibits a desirable balance of melt flow and ductility, is especially useful for forming thin plastic parts of consumer electronic devices, including mobile phones.

Abstract: A composition includes specific amounts of a poly(butylene terephthalate), a reinforcing filler, and a polycarbonate that includes a copolyestercarbonate and a polycarbonate-polydiorganosiloxane block copolymer. The copolyestercarbonate includes aliphatic ester groups. The composition, which exhibits a desirable balance of melt flow and ductility, is especially useful for forming thin plastic parts of consumer electronic devices, including mobile phones.

Abstract: Disclosed herein is a method of reducing the amount of antimony flame retardant compound in a flame retardant composition which comprises using calcium oxide or a combination of talc and calcium oxide as a filler in the composition, wherein the composition comprises specific amounts of a polyester, a brominated flame retardant compound, an antimony flame retardant compound, and a filler comprising calcium oxide or a combination of talc and calcium oxide. Also disclosed are compositions prepared by such a method and articles derived therefrom.

Abstract: A composition includes specific amounts of an aromatic polycarbonate, an impact modifier, a black colorant, and a copolyester or a block polyestercarbonate or a combination of the copolyester and the block polyestercarbonate. The composition exhibits increased gloss and decreased haze relative to a corresponding composition without the copolyester or the block polyestercarbonate. The composition is useful for fabricating parts such as television bezels, covers of computer gaming consoles, and mobile phone front bezels and back covers.

Abstract: Disclosed herein is a method of reducing the amount of antimony flame retardant compound in a flame retardant composition which comprises using a combination of an alkali metal carbonate with a brominated flame retardant compound in the composition, wherein the composition comprises: (a) a polyester; (b) a brominated flame retardant compound; (c) an antimony flame retardant compound; (d) an alkali metal carbonate; and optionally (e) glass fiber. Also disclosed are compositions prepared by such a method and articles derived therefrom.

Abstract: Disclosed herein is a resin composition for molding a reflector for a light-emitting semiconductor diode comprising about 25 to about 80 wt. % of an heat-resistant aromatic polyester, about 5 to 50 wt. % of titanium dioxide filler; and about 5 to 50 wt. % of a glass fibers having a flat surface. In another aspect of the present invention, there is also provided a reflector for a light-emitting semiconductor element, which includes a molded product of the resin composition. In a further aspect of the present invention, there is also provided a light-emitting semiconductor unit comprising a light-emitting semiconductor diode element, leads connecting electrodes of the light-emitting semiconductor diode element with external electrodes, respectively, and the reflector.

Abstract: Disclosed herein is a flame retardant composition comprising 10 to 75 weight percent of a polycarbonate; 10 to 30 weight percent of a polyester; 10 to 35 weight percent of a polysiloxane-polycarbonate copolymer; and a phosphazene flame retardant, where all weight percents are based on the total weight of the flame retardant composition. Disclosed herein too is a method of manufacturing a flame retardant composition comprising blending 30 to 50 weight percent of a polycarbonate; 10 to 30 weight percent of a polyester; 10 to 35 weight percent of a polysiloxane-polycarbonate copolymer; and a phosphazene flame retardant, where all weight percents are based on the total weight of the flame retardant composition.

Abstract: A composition comprising a polysiloxane polycarbonate block copolymer; a cycloaliphatic polyester; and a polycarbonate that is different from the polycarbonate block copolymer, having a weight average molecular weight of less than about 20,000 Daltons. The compositions have high flow at low temperatures and good impact properties. The compositions are useful for the manufacture of components for handheld electronic devises such as cellular telephones.

Abstract: A composition comprising a polysiloxane polycarbonate block copolymer; a cycloaliphatic polyester; and a polycarbonate that is different from the polycarbonate block copolymer, having a weight average molecular weight of less than about 20,000 Daltons. The compositions have high flow at low temperatures and good impact properties. The compositions are useful for the manufacture of components for handheld electronic devises such as cellular telephones.