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:
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 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:
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.