Abstract:
A polymer blend including 5 to 95 weight percent of a poly(ester-carbonate-carbonate) comprising 40 to 95 mole percent of ester units comprising low heat bisphenol groups and high heat bisphenol groups, wherein the ester units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of ester units in the poly(ester-carbonate-carbonate), and 5 to 60 mole percent of carbonate units comprising the low heat bisphenol groups and the high heat bisphenol groups, wherein the carbonate units comprise 20 to 80 mole percent of the low heat bisphenol groups and 20 to 80 mole percent of the high heat bisphenol groups, based on the total moles of carbonate units in the poly(ester-carbonate-carbonate); and 5 to 95 weight percent of a poly(etherimide), wherein the weight percent of each polymer is based on the total weight of the polymers in the blend, and a molded 0.125-inch thick ASTM tensile bar comprising the polymer blend has a haze value of less than 25% as determined according to ASTM D1003 using the color space CIE1931 with Illuminant C and a 2° observer.
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 copolycarbonate included 2-95 mole percent of high heat carbonate units derived from a high heat aromatic dihydroxy monomer, wherein a polycarbonate homopolymer derived from the high heat aromatic dihydroxy monomer has a glass transition temperature of 175-330C determined by differential scanning calorimetry as per ASTM D3418 with a 20C/min heating rate, and 5-98 mole percent of a low heat carbonate units derived from a low heat aromatic monomer, wherein a polycarbonate homopolymer derived from the low heat aromatic monomer has a glass transition temperature of less than 170C determined by differential scanning calorimetry as per ASTM D3418 with a 20C/min heating rate, each based on the sum of the moles of the carbonate units; and a sulfur-containing stabilizer compound, wherein the sulfur-containing stabilizer compound is a thioether carboxy compound, a thioether dicarboxy compound, a thioether ester compound, or a combination thereof, wherein the sulfur-containing stabilizer compound is present in an amount effective to provide 5-50 parts per million by weight of added sulfur, based on the total parts by weight of the copolycarbonate, wherein a source of the added sulfur is the sulfur-containing stabilizer.
Abstract:
A thermoplastic composition including a polyaryl ester, a polymer different from the polyaryl ester, and a phthalone compound according to the formula (I) wherein Z 1 represents the atoms necessary to complete a 9- to 13-membered single or fused aromatic ring structure, Z 2 represents the atoms necessary to complete a pyridine or quinoline ring, each R 1 and each R 2 are independently halogen, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an aromatic or aliphatic thioether group, an aromatic or aliphatic carboxylic acid ester group, or an aromatic or aliphatic amide group, a is 0 to 6, b is 0 to 4, n is 1 or 2, and X is present only if n= 2 and is a single bond or a divalent organic radical bonded to the Z 1 ring structure through an ether, ketone, or thio linkage.
Abstract:
A thermoplastic composition comprises, based on the total weight of the polymers in the thermoplastic composition, a polycarbonatesiloxane-arylate; 2 to 15 wt% or 2 to 8 wt% or 1 to 4 wt% of a core-shell impact modifier; a flame retardant comprising a bromine-containing polymer or oligomer effective to provide 1.5 wt% to 5 wt% of bromine; an aromatic organophosphorus compound, effective to provide 0.1 to 1 wt% of phosphorus, or a combination comprising at least one of the foregoing; and optionally 0 to 80 wt% or 0 to 60 wt% of a polyetherimide.
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 ºC to and a yellowness index of less than 30.
Abstract:
Disclosed are methods of making articles useful in aircraft or other passenger conveyance (and specific articles made), these methods including melt extruding a plurality of layers comprising a thermoplastic polymer composition in a preset pattern; and fusing the plurality of layers to provide the article; wherein the thermoplastic polymer composition is a combination of polycarbonate polymer or copolymer, a polyetherimide polymer or copolymer, a polyarylethersulfone polymer or copolymer, and a non-brominated and non-chlorinated organic phosphorus-containing additive that will lower the Tg of the thermoplastic polymer from 5 to 100 degrees C, wherein the article meets Federal Aviation Regulation FAR 25.853 (d).
Abstract:
A thermoplastic composition including a polycarbonatesiloxane-arylate; a phthalone compound; and optionally an additional component different from the polycarbonatesiloxane- arylate and the phthalone compound; wherein the phthalone compound has a formula: wherein Z 1 represents the atoms necessary to complete a 9- to 13-membered single or fused aromatic ring structure, Z 2 represents the atoms necessary to complete a pyridine or quinoline ring, each R 1 and each R 2 are independently halogen, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an aromatic or aliphatic thioether group, an aromatic or aliphatic carboxylic acid ester group, or an aromatic or aliphatic amide group, a is an integer from 0 to 6, b is an integer from 0 to 4, n is 1 or 2, and X is present only if n= 2 and is a single bond or a divalent organic radical bonded to the Z 1 ring structure through an ether, ketone, or thio linkage.
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 TiO 2, wherein a sample of the composition has a 50% higher notched Izod impact energy value compared to the composition without the compatibilizer component.
Abstract:
This disclosure relates to thermoplastic compositions comprising a polycarbonate copolymer, the polycarbonate copolymer comprising first repeating carbonate units and second repeating units selected from carbonate units that are different from the first carbonate units, polysiloxane units, and a combination comprising at least one of the foregoing unit; and an organophosphorus flame retardant in an amount effective to provide 0.1 to 1.0 wt% phosphorus based on the total weight of the composition, wherein an article molded from the composition has a smoke density after 4 minutes (Ds-4) of less than or equal to 600 determined according to ISO 5659-2 on a 3 mm thick plaque, and a material heat release of less than or equal to 160 kW/m 2 determined according to ISO 5660-1 on a 3 mm thick plaque.