Abstract: A polycarbonate composition comprises: 30 to 95 wt % of one or more bisphenol A polycarbonate homopolymers; and 5 to 70 wt % of a poly(carbonate-siloxane) copolymer with a siloxane content of 10 wt. % to 25 wt. % based on the total weight of the poly(carbonate-siloxane), in an amount effective to provide a total siloxane content of 0.5 wt. % to 17.5 wt. % based on the total weight of the composition; the poly(carbonate-siloxane) copolymer comprising bisphenol carbonate units and siloxane units of the formulas or a combination comprising at least one of the foregoing, wherein E has an average value of 10 to 100, preferably 20 to 60, more preferably 30 to 50; wherein in the poly(carbonate-siloxane) copolymer less than 0.5 mol % of the siloxane units are directly coupled to another siloxane units.

Abstract: Interior aircraft components comprise a thermoplastic composition comprising: a first polymer comprising bisphenol A carbonate units and monoaryl arylate units, or a second polymer comprising bisphenol A carbonate units, monoaryl arylate units, and siloxane units, or a combination comprising at least one of the foregoing polymers; and an organophosphorus compound; wherein a sample of the thermoplastic composition has: an OSU integrated 2 minute heat release test value of less than 65 kW-min/m2 and a peak heat release rate of less than 65 kW/m2, an E662 smoke test DsMax value of less than 200, a flame time of less than 15 seconds, a burn length of less than 6 inches, and a drip extinguishing time of less than 5 seconds, an energy in multiaxial impact of 100 J or more and a ductility in multiaxial impact of 100%.

Abstract: A polycarbonate composition comprises: a first poly(carbonate-siloxane) copolymer comprising carbonate units and siloxane units, wherein less than 0.5 mol % of the siloxane units are directly coupled to another siloxane unit; the first poly(carbonate-siloxane) copolymer comprising siloxane units with an average block length of about 10 to about 100, and a siloxane content from 5 wt % to 8 wt %; a second poly(carbonate-siloxane) copolymer comprising carbonate units and siloxane units, wherein less than 0.5 mol % of the siloxane units are directly coupled to another siloxane unit; the second poly(carbonate-siloxane) copolymer comprising siloxane units with an average block length of 10 to 100, a siloxane content from 10 wt % to 30 wt %, and wherein the weight ratio of the first poly(carbonate-siloxane) copolymer to the second poly(carbonate-siloxane) copolymer is 2 to 20; and optionally a bisphenol polycarbonate; wherein the polycarbonate composition has a total siloxane content of 2.

Abstract: A polycarbonate composition comprises: a first poly(carbonate-siloxane) copolymer, comprising a polysiloxane block with an average block length of 10 to 100, and a siloxane content from 5 wt % to 10 wt %; and a second poly(carbonate-siloxane) copolymer comprising a polysiloxane block with an average block length of 10 to 100, and a siloxane content from 30 wt % to 60 wt %; wherein the weight ratio of the first poly(carbonate-siloxane) copolymer to the second poly(carbonate-siloxane) copolymer is greater than or equal to 2 to less than 8; and a bisphenol A homopolycarbonate, wherein the polycarbonate composition has a total siloxane content of 2.5 wt % to 10 wt % based on the total weight of the composition; and a molded part of 1 mm thickness has a haze of less than 10% as measured by HazeGard (ASTM D1003-00).

Abstract: The present disclosure describes polycarbonate-siloxane blends with a constant percentage of siloxane in the formulations. The polycarbonate-siloxane blends achieve improved impact properties, as well as the ability to achieve deep black and bright white colors.

Abstract: Disclosed herein are polydiorganosiloxane-polycarbonate block copolymers having desirable optical properties, and methods of making such block copolymers. Also disclosed herein are analytical methods for evaluating hydroxyaryl end-capped polydialkylsiloxane monomers.

Abstract: Polycarbonate blend compositions are disclosed. The compositions include at least one polycarbonate useful for high heat applications. The compositions can include one or more additional polymers. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezels.

Abstract: Metallized articles comprising polycarbonate compositions are disclosed. The compositions include at least one first polycarbonate useful for high heat applications; and a second Bisphenol A polycarbonate. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezel.

Abstract: Polycarbonate blend compositions are disclosed. The compositions include at least one polycarbonate useful for high heat applications. The compositions can include one or more additional polymers. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezels.

Abstract: Metallized articles comprising polycarbonate compositions are disclosed. The compositions include at least one first polycarbonate useful for high heat applications, a second polycarbonate that is a Bisphenol A (BPA) polycarbonate-polydimethyl-siloxane copolymer; and optionally a third polycarbonate. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezel.

Abstract: A railway component comprises a polycarbonate composition comprising: 25 to 90 wt. % of a poly(aliphatic ester-carbonate); a second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination comprising at least one of the foregoing, wherein siloxane units in the second polymer are present in the polycarbonate composition in an amount of 0.3 to 3 wt. %, based on the total weight of the polycarbonate composition; and 10 to 50 wt. % of glass fiber, based on the total weight of the polycarbonate composition. The polycarbonate composition has balanced smoke, heat release, mechanical, and aesthetic properties.

Abstract: A thermoplastic composition comprises, based on the total weight of the thermoplastic composition, 10 to 45 wt. % of a poly(etherimide); 35 to 90 wt. % of a poly(carbonate-siloxane); 0.5 to 20 wt. % of compatibilizer polycarbonate component comprising a poly(carbonate-arylate ester); up to 15 wt. % of an ultraviolet light stabilizer; and 0 to 30 wt. % of TiO2; wherein a sample of the composition has a notched Izod impact energy of at least 200 J/m at 23° C. measured in accordance to ASTM D256; and an at least 50% higher notched Izod impact energy value compared to the composition without the compatibilizer component measured in accordance to ASTM D256.

Abstract: A thermoplastic composition comprises, based on the total weight of the thermoplastic composition, 10 to 45 wt. % of a poly(etherimide); 35 to 90 wt. % of a polycarbonate component comprising a polycarbonate homopolymer, a poly(carbonate-siloxane), or a combination thereof; 0.5 to 20 wt. % of a compatibilizer polycarbonate component comprising a poly(carbonate-arylate ester), a phthalimidine copolycarbonate, or a combination thereof; up to 5 wt. % of an ultraviolet light stabilizer; and 0 to 20 wt. % of TiO2, wherein a sample of the composition has a 50% higher notched Izod impact energy value compared to the composition without the compatibilizer component.

Abstract: An article and thermoplastic composition including polycarbonate, a polysiloxane-polycarbonate and an x-ray detectable or metal detectable agent having good magnetic permeability and/or electrical conductivity wherein the composition may be used in articles for food preparation. The thermoplastic compositions are useful in forming molds for manufacturing a food product, such as chocolate molds.

Abstract: A railway component comprises a polycarbonate composition comprising: a first polycarbonate selected from a linear polycarbonate homopolymer, a branched polycarbonate, a poly(carbonate-bisphenol arylate ester), a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in an amount of 0.3 to 3 wt. %, based on the total weight of the composition; and 10 to 40 wt. % of glass fiber, based on the total weight of the polycarbonate composition.

Abstract: Disclosed herein are polydiorganosiloxane-polycarbonate block copolymers having desirable optical properties, and methods of making such block copolymers. Also disclosed herein are analytical methods for evaluating hydroxyaryl end-capped polydialkylsiloxane monomers.

Abstract: A low smoke density thermoplastic composition comprising, based on the total weight of the thermoplastic composition, 70 to 95 wt % of a polycarbonate copolymer comprising first repeating units and second repeating units, wherein the first repeating units are not the same as the second repeating units, and wherein the first repeating units are bisphenol carbonate units of the formula wherein Ra and Rb are each independently C1-12 alkyl, C1-12 alkenyl, C3-8 cycloalkyl, or C1-12 alkoxy, p and q are each independently 0 to 4, and Xa is a single bond, —O—, —S—, —S(O)—, —S(O)2—, —C(O)—, a C1-11 alkylidene of formula —C(Rc)(Rd)— wherein Rc and Rd are each independently hydrogen or C1-10 alkyl, or a group of the formula —C(?Re)— wherein Re is a divalent C1-10 hydrocarbon group; and the second repeating units comprise bisphenol carbonate units that are not the same as the first repeating bisphenol carbonate units, siloxane units, arylate ester units, or a combination of arylate ester units and siloxane units; and

Abstract: A railway component comprises a polycarbonate composition comprising: a first polycarbonate selected from a linear polycarbonate homopolymer, a branched polycarbonate, a poly(carbonate-bisphenol arylate ester), a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in an amount of 0.3 to 3 wt. %, based on the total weight of the composition; and 10 to 40 wt. % of glass fiber, based on the total weight of the polycarbonate composition.

Abstract: Interior railway components (seat covers and claddings) comprise a thermoplastic composition comprising: a first polymer comprising bisphenol A carbonate units and monoaryl arylate units, or a second polymer comprising bisphenol A carbonate units, monoaryl arylate units, and siloxane units, or a combination comprising at least one of the foregoing polymers; and an organophosphorus compound; wherein a sample of the thermoplastic composition has: a smoke density after 4 minutes (Ds-4) of equal to or less than 300, an integral of the smoke density as a function of time up to 4 minutes (VOF4) of equal to or less than 600, a maximum average heat release (MAHRE) of equal to or less than 90 kW/m2, and a ductility in multiaxial impact of 100%.

Abstract: Seat components and claddings for railway molded or formed from a thermoplastic polymer composition comprising, based on the total weight of the composition, 50 to 93 wt. % of a specific polycarbonate; 4 to 30 wt. % of a poly(carbonate-siloxane) comprising bisphenol A carbonate units, and siloxane units; 3 to 20 wt. % of an organophosphorus compound in an amount effective to provide 0.1 to 2.0 wt. % of phosphorus, based on the total weight of the thermoplastic polymer composition; wherein an article having a thickness of 0.5 to 10 mm molded from the composition has a Ds-4 smoke density?300 measured according to ISO 5659-2, and a MAHRE?90 kW/m2 measured according to ISO 5660-1, a multiaxial impact energy?100 J, and a ductility in multiaxial impact of 80 to 100% at +23° C. according to ISO 6603.