Abstract: In some embodiments, a composition comprises a bisphenol-A polycarbonate, wherein a molded article of the bisphenol-A polycarbonate has transmission level greater than or equal to 90.0% at 2.5 mm thickness as measured by ASTM D1003-00 and a yellow index (YI) less than or equal to 1.5 as measured by ASTM D1925. In some embodiments, light emitting device comprises: a lighting element located in a housing. The housing is formed from a plastic composition comprising: the polycarbonate composition and a conversion material. After the conversion material has been exposed to an excitation source, the conversion material has a luminescence lifetime of less than 10?4 seconds when the excitation source is removed.

Abstract: In one embodiment, a process for producing a bisphenol A product comprises: reacting phenol with acetone in the presence of a sulfur containing promoter to obtain a reaction mixture comprising bisphenol A, phenol, and the promoter; after reacting the phenol with the acetone, cooling to form a crystal stream comprising crystals of bisphenol A and phenol; separating the crystals from the crystal steam; melting the crystals to form a molten stream of bisphenol A, phenol, and sulfur; contacting the molten stream with a base to reduce a sulfur concentration in the molten stream and form a reduced sulfur stream; and removing phenol from the reduced sulfur stream to form a bisphenol A product.

Abstract: In one embodiment, a light emitting device comprises: a lighting element located in a housing, wherein the housing is formed from a polymer composition comprising: a polymer material; and a coated conversion material. The coated conversion material is selected from a coated conversion material, coated yttrium aluminum garnet (YAG) doped with rare earth elements, coated terbium aluminum garnet doped with rare earth elements, coated silicate (BOSE) doped with rare earth elements; coated nitrido silicates doped with rare earth elements; coated nitride orthosilicate doped with rare earth elements, coated oxonitridoaluminosilicates doped with rare earth elements; as well as combinations comprising at least one of the foregoing. After the coated conversion material has been exposed to an excitation source, the coated conversion material has a luminescence lifetime of less than 10?4 seconds when the excitation source is removed.

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: 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 composition comprising: a polycarbonate comprising units derived from a bisphenol cyclohexylidene of the formula: wherein Rc1 and Rd1 are each independently C1-12 alkyl, Rc2 and Rd2 are each independently hydrogen or C1-12 alkyl, Rg is C1-12 alkyl or halogen, and t is 0 to 10; and a poly(ether-ester) copolymer comprising 40 to 60 wt % of polyester hard block units derived from a C6-C24 aromatic dicarboxylic acid or a C6-C24 alicyclic dicarboxylic acid and at least one glycol component, wherein when the C6-C24 aromatic dicarboxylic acid comprises terephthalic acid, isophthalic acid groups are present in an amount from 0 to 30 mole %, based on the total moles of isophthalic acid groups and terephthalic acid groups in the hard block units, and 40 to 60 wt % of polyether soft block units derived from poly(oxytetramethylene) glycol, wherein the molecular weight of the poly(oxytetramethylene) glycol groups is 300 to 1800 Daltons.

Abstract: A composition comprises a thermally crosslinked reaction product of a polyester and a carboxy-reactive material. Methods for the manufacture of the composition and articles derived from the composition are also disclosed.

Abstract: A composition comprising: a polycarbonate comprising units derived from a bisphenol cyclohexylidene of the formula: wherein Rc1 and Rd1 are each independently C1-12 alkyl, Rc2 and Rd2 are each independently hydrogen or C1-12 alkyl, Rg is C1-12 alkyl or halogen, and t is 0 to 10; and a poly(ether-ester) copolymer comprising 40 to 60 wt % of polyester hard block units derived from a C6-C24 aromatic dicarboxylic acid or a C6-C24 alicyclic dicarboxylic acid and at least one glycol component, wherein when the C6-C24 aromatic dicarboxylic acid comprises terephthalic acid, isophthalic acid groups are present in an amount from 0 to 30 mole %, based on the total moles of isophthalic acid groups and terephthalic acid groups in the hard block units, and 40 to 60 wt % of polyether soft block units derived from poly(oxytetramethylene) glycol, wherein the molecular weight of the poly(oxytetramethylene) glycol groups is 300 to 1800 Daltons.

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 Composition comprises a thermally crosslinked reaction product of a polyester and a carboxy-reactive material. Methods for the manufacture of the composition and articles derived from the composition are also disclosed.