Abstract: A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a particular polycarbonate-siloxane copolymer and a phosphazene flame retardant Methods of making the composition and articles including the composition are also described.

Abstract: A thermoplastic composition includes: (a) from about 5 wt % to about 75 wt % of a polycarbonate component; (b) from about 10 wt % to about 60 wt % of a low refractive index polyester that is miscible with polycarbonate; (c) from about 10 wt % to about 30% of an inherently dissipative polymer (IDP) having a refractive index at room temperature of at least 1.50; and (d) from about 5 wt % to about 75 wt % of a copolymer comprising polycarbonate and isophthalate terephthalate resorcinol (ITR).

Abstract: A thermoplastic composition includes: (a) from about 5 wt % to about 90 wt % of an aliphatic polyester-polycarbonate copolymer; (b) from about 5 wt % to about 65 wt % of a polycarbonate component different from the aliphatic polyester-polycarbonate copolymer in element (a); and (c) from greater than 5 wt % to about 30 wt % of an inherently dissipative polymer (IDP). The composition has a heat distortion temperature of at least 90° C. at 1.8 MPa and 4.0 mm as determined in accordance with ISO 75 and a notched Izod impact strength at 23° C. of at least 25 kJ/m2 as tested in accordance with ISO 180 at a thickness of 4.0 mm. In further aspects the composition has improved surface gloss properties as compared to a comparative composition that does not include the aliphatic polyester-polycarbonate copolymer of element (a).

Abstract: A polycarbonate composition comprising: 35 to 98 wt % of a poly(carbonate-co-monoarylate ester) comprising aromatic carbonate units, monoaryl carbonate units, or a combination thereof and monoaryl ester units, and optionally aromatic ester units; to less than 50 wt % of a poly(ester) composition comprising greater than 20 to less than 50 wt % of poly(ethylene terephthalate), or 2 to less than 50 wt % of a poly(ester) different from poly(ethylene terephthalate), or a combination of 1-49 wt % of poly(ethylene terephthalate) and 1-49 wt % of a poly(ester) different from poly(ethylene terephthalate); 1 to 50 wt % of a homopolycarbonate, a poly(aliphatic ester-carbonate), or a combination thereof; optionally, 0.001 to 10 wt % of an additive composition; and optionally, 0.5 to 6 wt % of an organophosphorous flame retardant.

Abstract: A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a first poly-carbonate-siloxane copolymer having a siloxane content of 10 to 30 weight percent, based on the total weight of the first polycarbon-ate-siloxane copolymer, a second polycarbonate-siloxane copolymer having a siloxane content of greater than 30 to 55 weight percent, preferably 35 to 50 weight percent, based on the total weight of the second polycarbonate-siloxane copolymer, and an organophosphorus flame retardant. Methods of making the composition and articles including the composition ar also described.

Abstract: A reinforced polycarbonate composition includes 30-60 wt % of a homopolycarbonate; 5-30 wt % of a poly(carbonate-siloxane); 10-40 wt % of a high heat polycarbonate having a glass transition temperature of 170° C. or higher determined per ASTM D3418 with a 20° C./min heating rate; 1-10 wt % of a phosphorous-containing flame retardant present in amount effective to provide 0.1-1.5 wt % phosphorous; 0.01-0.5 wt % of an anti-drip agent; 5-30 wt % of a reinforcing fiber; and optionally, up to 10 wt % of an additive composition, wherein each amount is based on the total weight of the reinforced polycarbonate composition, which sums to 100 wt %. A molded sample of the polycarbonate composition has a heat deflection temperature greater than 115° C., preferably greater than 125° C., more preferably greater than 130° C., or a flame test rating of V1, preferably V0 as measured according to UL-94 at a thickness of 0.8 millimeter, or at a thickness of 0.6 mm, or at a thickness of 0.4 mm.

Abstract: A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a particular polycarbonate-siloxane copolymer, a poly(butylene terephthalate) or a poly(ethylene terephthalate), and an organophosphorus flame retardant. Methods of making the composition and articles including the composition are also described.

Abstract: A polycarbonate composition includes particular amounts of a bisphenol A polycarbonate homopolymer, a particular polycarbonate-siloxane copolymer a poly(ester-carbonate), and, optionally, an organophosphorus flame retardant. Methods of making the composition and articles including the composition are also described.

Abstract: Polycarbonate compositions comprising a linear homopolycarbonate, a poly(phthalate-carbonate), or a combination thereof; a poly(carbonate-siloxane) component present in an amount effective to provide 0.1 to 10 wt % siloxane, based on the total weight of the composition, comprising: a poly(carbonate-siloxane) having a 30-70 wt % siloxane content, a combination of a poly(carbonate-siloxane) having a 10 wt % or less siloxane content and a poly(carbonate-siloxane) having greater than 10 wt % to less than 30 wt % siloxane content, or a combination thereof; a linear polycarbonate comprising 0.1-4.0 mole % repeating units derived from a monomer having a pendant ester group based on the total moles of the composition; optionally, a reinforcing composition comprising glass fibers, a mineral filler, or a combination thereof; and a flame retardant comprising an aromatic organophosphorous compound can have low smoke density characteristics (e.g.

Abstract: A flame retardant composition comprising: 45.0-99.9 wt % of a high heat copolycarbonate comprising high heat carbonate units derived from high heat bisphenol monomers, and optionally comprising low heat carbonate units, wherein a homopolycarbonate of the low heat carbonate units has a glass transition temperature of up to 150° C. as determined by differential scanning calorimetry as per ASTM D3418 with heating rate of 20° C./min; 0-55 wt % of a homopolycarbonate; 0.1-0.8 wt % of a Ci-i6 alkyl sulfonate salt flame retardant; each based on the total weight of the flame retardant composition wherein a molded sample of the flame retardant composition has a UL 94 rating of V0 at a thickness of 1.5 millimeter, and a transmission of greater than 80%, 85%, or 88% or a haze of less than 2%, or 1%, each of the transmission and haze was determined according ASTM D1003 at a thickness of 1.0 millimeter.

Abstract: A thermoplastic composition comprising: a copolycarbonate comprising bisphenol A (BPA) carbonate units and 10-50 mol % of second carbonate units different from the BPA carbonate units; a poly(carbonate-arylate ester) copolymer comprising BPA carbonate units and 5-50 mol % of monoaryl arylate ester units; and optionally a BPA homopolycarbonate; wherein the thermoplastic composition has at least one of: a Vicat B120 softening temperature of 155° C. or greater; or a yellowness index of less than 10 on a plaque having a thickness of 3 mm and molded at a temperature of 360° C. for 5 minutes; or an increase in yellowness index of less than 5 after 600 hours of weathering per ISO 11341 on a molded plaque having a thickness of 1 mm.

Abstract: A reinforced polycarbonate composition comprising 50-95 wt % of a poly(aliphatic ester-carbonate); 5-40 wt % of a high heat copolycarbonate comprising high heat carbonate units derived from 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethyl-cyclohexane, N-phenyl phenolphthalein bisphenol, 4,4-(1-phenylethylidene)bisphenol, 4,4-(3,3-dimethyl-2,2-dihydro-1H-indene-1,1-diyl)diphenol, 1,1-bis(4-hydroxyphenyl)cyclododecane, 3,8-dihydroxy-5a,10b-diphenyl-coumarano-2?,3?,2,3-coumarane, or a combination thereof, preferably 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethyl-cyclohexane, N-phenyl phenolphthalein bisphenol, or a combination thereof, and optionally comprising low heat carbonate units; 0.1-0.8 wt % of a C1-16 alkyl sulfonate salt flame retardant; 0.1-0.8 wt % of an anti-drip agent; 5-35 wt % glass fibers; wherein each amount is based on the total weight of the reinforced polycarbonate composition, which sums to 100 wt %.

Abstract: The disclosure concerns methods for molding a polycarbonate containing plastic, the method including: (a) injecting a composition into a mold, the composition including (i) about 49 wt % to about 97.9 wt % of polycarbonate, (ii) about 2.0 wt % to about 50 wt % of a polycarbonate-polysiloxane copolymer, and (iii) about 0 wt % to about 1.0 wt % of at least one release agent; and (b) releasing the composition from the mold. The mold includes at least one draft angle of about 0.1 degrees to about 7 degrees. The polycarbonate blend includes a melt flow volume rate (MVR) of at least about 25 cm3/10 min as measured according to ISO 1133 at 300° C. and 1.2 kg.

Abstract: A flame retardant composition comprising: 34-94 wt % of a homopolycarbonate, acopolycarbonate, or a combination thereof; 5-85 wt % poly(carbonate-siloxane), in an amount effective to provide 2-6 wt % dimethyl siloxane; 0.05-0.6 w t%, preferably 0.2-0.4 wt%, of a C1-16 alkyl sulfonate salt flame retardant; 1-15 wt % of a mineral-filled silicone flame retardant synergist; 0.05-0.5 wt % of an anti-drip agent; wherein each amount is based on the total weight of the flame retardant composition, which sums to 100 wt %; and wherein a molded sample of the flame retardant composition has a Vicat softening temperature of greater than or equal to 140° C. as measured according to the ISO-306 standard at a load of 10 N and a heating rate of 50° C. per hour, and a flame test rating of V0 as measured according to UL-94 at a thickness of 1.0 millimeter, or at a thickness of 0.8 millimeter.

Abstract: A flame retardant composition includes poly(carbonate-bisphenol phthalate ester) or a combination of poly(carbonate-bisphenol phthalate ester) and a poly(ester), an organophosphorous flame retardant present in an amount effective to provide 0.5-0.8 wt % of added phosphorous; 5-45 wt % of glass fibers; optionally, a poly(carbonate-siloxane); optionally, 0.01-10 wt % of a flame retardant sulfonate salt; optionally, 0.1-0.6 wt % of an anti-drip agent; and optionally, 0.01-10 wt % an additive composition, wherein the amount of the polymer component, the organophosphorous flame retardant, the glass fibers, and the optional components total 100 wt %; and wherein a molded sample of the flame retardant composition has a UL 94 rating of V0 at a thickness of 1.2 millimeter, preferably a CA UL 94 rating of V0 at a thickness 0.8 millimeter.

Abstract: A copolycarbonate optical article comprises a polycarbonate composition including: a copolycarbonate having: 2 to 60 mol % of phthalimidine carbonate units, 2 to 90 mol % of high heat carbonate units, and optionally 2 to 60 mol % of bisphenol A carbonate units. The copolycarbonate has less than 100 ppm of each of phthalimidine, high heat bisphenol, and bisphenol A monomers, and less than 5 ppm of various ions, and is prepared from monomers each having a purity of at least 99.6%. The polycarbonate composition has a glass transition temperature of 200° C. to and a yellowness index of less than 30.

Abstract: A glass-filled polycarbonate composition comprising 5 to 95 wt % of a high heat copolycarbonate component; a phosphorous-containing flame retardant present in an amount effective to provide about 0.2 to 0.9 wt % of added phosphorous, 5 to 45 wt % of glass fibers; optionally, 5 to 50 wt % of a homopolycarbonate optionally, 5 to 45 wt % of a poly(carbonate-siloxane); optionally, 0.1 to 0.97 wt % of an anti-drip agent; wherein each amount is based on the total weight of the glass-filled polycarbonate composition, which sums to 100 wt %; wherein a molded sample of the glass-filled polycarbonate composition has a Vicat softening temperature of greater than or equal to 135° C. as measured according to ISO 306, and a flame test rating of V0 as measured according to UL-94 at a thickness of 1.0 millimeter, preferably 0.8 millimeter, or preferably 0.4 millimeter.

Abstract: A thermoplastic composition comprises: a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula (I) and optionally, a bisphenol A homopolycarbonate; wherein the second carbonate units are present in an amount of 10 to 49 mol % based on the sum of the moles of the copolycarbonate and the bisphenol A homopolycarbonate, the copolycarbonate comprises less than 2 ppm by weight of each of an ion of lithium, sodium, potassium, calcium, magnesium, ammonium, chlorine, bromine, fluorine, nitrite, nitrate, phosphite, phosphate, sulfate, formate, acetate, citrate, oxalate, trimethylammonium, and triethylammonium, as measured by ion chromatography, and the thermoplastic composition has a bisphenol A purity of at least 99.6%, or at least 99.7% as determined by high performance liquid chromatography. The thermoplastic composition has a Vicat B120 of 155° C. or higher; and an increase in yellowness index of less than 10 during 1000 hours of heat aging at 155° C.

Abstract: A thermoplastic composition including a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula wherein Ra and Rb are each independently a C1-12 alkyl, C1-12 alkenyl, C3-8 cycloalkyl, or C1-12 alkoxy, each R3 is independently a C1-6 alkyl, R4 is hydrogen, C2-6 alkyl or phenyl optionally substituted with 1 to 5 C1-6 alkyl groups, p, q, and j are each independently 0 to 4, optionally a bisphenol A homopolycarbonate; and an acid stabilizer comprising a sulfonic acid ester; wherein the composition has an improved volatile or non-volatile organic compound content and yellowness index value when compared to a reference sample of an otherwise identical composition except for not containing the stabilizer.

Abstract: A poly(carbonate-ester) copolymer including carbonate units of the formula (I); and ester units of the formula (II) wherein: T is a C2-20 alkylene, a C6-20 cycloalkylene, or a C6-20 arylene; and R1 and J are each independently a bisphenol A divalent group, or a phthalimidine divalent group or a third divalent group of the formula (III), (IV), (V), (VI) or (VII) wherein Xa is a C6-12 polycyclic aryl, C3-18 mono- or polycycloalkylene, C3-18 mono- or polycycloalkylidene, -(Q1)x-G-(Q2)y- group wherein Q1 and Q2 are each independently a C1-3 alkylene, G is a C3-10 cycloalkylene, x is 0 or 1, and y is 1, provided that the at least one bisphenol A divalent group, at least one phthalimidine divalent group, and at least one third divalent group are present in the poly(carbonate-ester) copolymer.