Abstract: A material and method for making long fiber filled thermoplastics with improved additive evenness and physical properties that includes a fiber-filled thermoplastic resin and a coating layer that contains the one or more additives to eventually be dispersed in the molded article. The coating layer is added in a manner such that the coating does not substantially intermix with the thermoplastic resin to form the long fiber-filled thermoplastic material. The long fiber-filled thermoplastic material may then formed into a molded article using the long glass fiber-filled thermoplastic material. Since the long fiber-filled thermoplastic material is not formed into pellets prior to formation into the article, the problems associated with prior art methods regarding dispersion of the additives are avoided and the resulting molded article has improved additive evenness and characteristics as compared to prior art molded articles formed from a dry blend of pellets.

Abstract: Polycarbonate compositions containing a specific combination of additives achieve desirable flame retardance characteristics when used in thin wall polycarbonate articles. These compositions contain a polycarbonate/siloxane component, containing a polycarbonate siloxane copolymer, or a mixture of a polycarbonate siloxane copolymer and polycarbonate resin; a mineral filler; and a flame retardant. The composition contains at least 50% by weight of polycarbonate when the polycarbonate of the polycarbonate siloxane copolymer and any polycarbonate resin (linear or branched) are considered together; and the polycarbonate siloxane copolymer and the mineral filler are present in amounts effective to achieve a flex modulus of 29,000 kg/cm3 or greater, for example 30,000 kg/cm3 or greater, good flex-fold strength and good impact strength, for example a room temperature Notched Izod Impact Strength of 25 kgf-cm/cm or greater.

Abstract: Polycarbonate compositions containing a specific combination of additives achieve desirable flame retardance characteristics when used in thin wall polycarbonate articles. These compositions contain a polycarbonate/siloxane component, containing a polycarbonate siloxane copolymer, or a mixture of a polycarbonate siloxane copolymer and polycarbonate resin; a mineral filler; and a flame retardant. The composition contains at least 50% by weight of polycarbonate when the polycarbonate of the polycarbonate siloxane copolymer and any polycarbonate resin (linear or branched) are considered together; and the polycarbonate siloxane copolymer and the mineral filler are present in amounts effective to achieve a flex modulus of 29,000 kg/cm3 or greater, for example 30,000 kg/cm3 or greater, good flex-fold strength and good impact strength, for example a room temperature Notched Izod Impact Strength of 25 kgf-cm/cm or greater.