Abstract: Disclosed herein are alkoxy polycarbonates, ortho alkoxy bisphenol monomers, polymer compositions comprising ortho alkoxy bisphenol monomers, methods of preparing the ortho alkoxy bisphenol monomers, polymer compositions and articles made thereof. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Abstract: Disclosed herein are methods and compositions of polycarbonate blends having, among other characteristics, improved heat resistance. The resulting polycarbonate blends, comprising a first polycarbonate comprising structural repeating units derived from bisphenol acetophenone and optionally a second polycarbonate polymer comprising structural repeating units derived from bisphenol A, can be used in the manufacture of articles while still retaining the advantageous physical properties of blended polycarbonate compositions with improved heat resistance. The disclosed polycarbonate blends optionally comprise one or more polycarbonate blend additives. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Disclosed herein is a process for preparing a polymer comprising structural units derived from polycyclic dihydroxy compound having Formula (I), wherein R1 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and each R3 and R4, at each occurrence, can be the same or different and are independently at each occurrence an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons, “n” is an integer having a value 0 to 4 and “m” is an integer h

Abstract: Disclosed herein are polysiloxane-polycarbonate copolymer articles. In one embodiment, a ?th inch thick bar formed from the thermoplastic composition has a B-Y ratio of less than or equal to about 1.75. This article, which has a dimension that is greater than or equal to 1.5 cm, comprises the thermoplastic composition which comprises a polysiloxane-polycarbonate copolymer, wherein the copolymer comprises repeating diorganosiloxane units of formula (1): wherein each R is, independently, a C1-13 monovalent organic group; and E has an average value of 20 to 35.

Abstract: A copolycarbonate of the formula wherein 5 to 50 mole percent of the total number of R1 groups is derived from a monomer of formula (2) wherein each Rf is independently at each occurrence a halogen atom, a hydrocarbon group having 1 to 10 carbons, or a halogen substituted hydrocarbon group having 1 to 10 carbons, and n is 0 to 4; and 50 to 95 mole percent of the R1 groups are derived from a dihydroxy compound of formula HO—R5—OH, wherein at least 60% of the R5 groups are aromatic, and the dihydroxy compound of formula (3) is not a compound of formula (2), and wherein the copolycarbonate comprises at least 10% fewer carbonate linkages of formula (4) than would be theoretically obtained in a random copolymer made from the same ratio of the monomer of formula (2) and the dihydroxy compound of formula (3).

Abstract: A polycarbonate such as aliphatic/aromatic polycarbonate comprises repeating structural carbonate units of the formula (H-1): in which Rh is a radical having the formula (H-2): wherein each of R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, and R28 is independently a hydrogen, a C1-C6 alkyl group, or a halogen substituted C1-C6 alkyl group. The polycarbonate, and a thermoplastic composition thereof, have improved thermal stability, cost-effectiveness, and exhibit improved manufacturability such as, for example, minimum cyclic carbonate formation and minimum amine acceptor requirement.

Abstract: A copolycarbonate of the formula wherein 5 to 75 mole percent of the total number of R1 groups is derived from a high Tg monomer of formula (2) wherein R2 and R3 are each independently a halogen or a C1-6 alkyl group, R4 is a methyl or phenyl, and c is 0 to 4; and 25 to 95 mole percent of the R1 groups are derived from a dihydroxy compound of formula HO—R5—OH, wherein at least 60% of the R5 groups are aromatic, and the dihydroxy compound of formula (3) is not the same as the high Tg monomer of formula (2), and wherein the copolycarbonate comprises at least 10% fewer carbonate linkages of formula (4) than would be theoretically obtained in a random copolymer made from the same ratio of the high Tg monomer of formula (2) and the dihydroxy compound of formula (3).

Abstract: A copolycarbonate is discloses, comprising units of the formula (1) wherein 70 to 99.5 mole percent of the total number of R1 groups are derived from a dihydroxy compound of formula (2) wherein R2 and R3 are each independently a halogen or a C1-6 alkyl group, R4 is a methyl or a phenyl group, and c is independently 0 to 4; and 0.5 to 30 mole percent of the total number of R1 groups are derived from a dihydroxy compound of formula (3) HO—R5—OH??(3) wherein at least 60% of the R5 groups are aromatic, and the dihydroxy compound of formula (3) is not the same as the dihydroxy compound of formula (2), and wherein the copolycarbonate has a glass transition temperature of 250° C. or higher.

Abstract: A copolycarbonate-polyester, comprising units of formula wherein at least 60 percent of the total number of R1 groups are divalent aromatic organic radicals and the balance thereof are divalent aliphatic or alicyclic radicals; units of formula wherein T is a C7-20 divalent alkyl aromatic radical or a C6-20 divalent aromatic radical, and D is a divalent C6-20 aromatic radical; and units of the formula wherein R2 and R3 are each independently a halogen or a C1-6 alkyl group, R4 is a methyl or phenyl group, each c is independently 0 to 4, and T is as described above.

Abstract: A polycarbonate comprises structural units derived from a polycyclic dihydroxy compound of Formula (I) wherein R1 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic functionality having 1 to 10 carbons, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; R2 is selected from the group consisting of a cyano functionality, a nitro functionality, an aliphatic ester functionality having 2 to 10 carbons, a cycloaliphatic ester functionality having 4 to 10 carbons and an aromatic ester functionality having 4 to 10 carbons; and R3 and R4 are independently at each occurrence a hydrogen, an aliphatic functionality having 1 to 10 carbons or a cycloaliphatic functionality having 3 to 10 carbons.

Abstract: A method for preparing an aliphatic chloroformate comprising, introducing a mixture of at least one aliphatic hydroxyl compound, phosgene, at least one solvent, and optionally at least one organic base into a flow reactor to obtain a unidirectional flowing reaction mixture. The at least one aliphatic hydroxyl compound comprises at least one aliphatic hydroxyl group. The unidirectional flowing reaction mixture is maintained at a temperature between about 0° C. and about 60° C. to produce a single product stream comprising an aliphatic chloroformate.

Abstract: Copolymers of BPA, BPT-1 and BPT-2, can be used as a modifier to enhance the thermal properties of a BPA polymer. A single copolymer modifier can be used in differing amounts to produce a product with desired thermal properties. Thus, polycarbonate can be made by combining a bisphenol A polycarbonate and a BPA/BPT-1/BPT-2 copolymer modifier, and mixing the combined materials to form a blend. By adjusting the relative amounts and the properties of the bisphenol A polycarbonate and BPA/BPT-1/BPT-2 copolymer, the glass transition temperature and the toughness of the blend can be selected. Suitable BPA/BPT-1/BPT-2 copolymers contain BPT-1 and BPT-2 in a ratio, BPT-1/BPT-2, in the range of 70/30 to 10/90, preferably less than or equal to 50/50, for example around 30/70.

Abstract: Copolymers of BPA and menthane bisphenols such as BPT1 and BPT2 can be used as a compatabilizer to allow the formation of homogeneous blends of BPA with menthane bisphenol polycarbonates such as poly-BPT1 or poly-BPT2 or copolymers thereof. Thus, a compatible polycarbonate blend is made by combining a bisphenol A polycarbonate, a menthane bisphenol polycarbonate and a BPA/menthane bisphenol copolymer compatabilizer, and mixing the combined materials to form a blend. The compatabilizer may contain one or more species of menthane bisphenol. In a specific example, BPT1 and BPT2 are used in the compatabilizer in a ratio, BPT1/BPT2, in the range of 70/30 to 10/90, preferably less than or equal to 1/1, for example around 30/70. By adjusting the relative amounts and the properties of the bisphenol A polycarbonate and the menthane bisphenol polycarbonate, the glass transition temperature and the toughness of the blend can be selected.

Abstract: A polymer composition is provided comprising an ultraviolet light sensitive phosphite and an amount of a polyamine effective to enhance the resistance of the color formation upon exposure to ultraviolet light. A process is also provided for applying ink to a thermoplastic substrate involving ultraviolet light curing of the ink. The thermoplastic compositions are useful for making article which contain UV sensitive phosphites for oxidative stability and also exhibit resistance to ultraviolet light yellowing of the phosphite. The inking process resists detrimental yellowing of the composition upon exposure to high levels of ultraviolet light radiation.

Abstract: A phosphite is provided having the formula: ##STR1## wherein Y.sup.1 is an alkyl group and Y.sup.2 is selected from the group consisting of sec-butyl and tert-butyl. The phosphite exhibits enhanced stability including hydrolytic and UV stability, and is useful in stabilizing thermoplastic compositions.