Abstract: In an embodiment, a method of producing carbonate can comprise: reacting a feed comprising carbon monoxide and chlorine in a tube of a reactor to produce a product composition comprising phosgene, wherein the tube has a particulate catalyst contained therein, wherein a thermally conductive material separate from the tube contacts at least a portion of the particulate catalyst, and wherein carbon tetrachloride is present in the product composition in an amount of 0 to 10 ppm by volume based on the volume of the phosgene; and reacting a monohydroxy compound with the phosgene to produce the carbonate.

Abstract: Disclosed herein is a polyalkylene terephthalate flame retardant composition, comprising (a) 30 to 60 parts by weight of a polyalkylene terephthalate or a mixture of polyalkylene terephthalates, (b) 0.25 to 2.5 parts by weight of an antidrip agent, (c) 4 to 18 parts by weight of melamine polyphosphate (hereinafter “MPP”), and (d) 12 to 26 parts by weight of poly(pentabromobenzylacrylate) (hereinafter “PBBPA”), provided that the combined amount of MPP and PBBPA is at least 18 parts by weight and less than or equal to 30 parts by weight and provided that the composition is substantially antimony free. The invention also provides processes for making such compositions as well as articles derived therefrom.

Abstract: Disclosed is a process for the manufacture of a polyalkylene terephthalate such as polybutylene terephthalate. In particular, the process comprises employing a titanium-containing catalyst formed by the reaction product of tetraalkyl titanate and a complexing agent comprising a phosphorous, nitrogen or boron atom. The process is used to prepare polyalkylene terephthalates characterized by improved hydrostability, as well as compositions derived therefrom.

Abstract: An article for laser marking can comprising: a thermoplastic composition comprising a thermoplastic polymer, an active component comprising at least one of a polymeric unit and an additive, wherein the thermoplastic polymer has a visible transmission of greater than or equal to 80% according to ASTM D1003-00, Procedure A, using D65 illumination, 10 degrees observer, and thickness of 1 mm; and a mark produced by chemical rearrangement of the active component generated by a laser of a first wavelength; wherein the mark exhibits at least one of: (i) a change in optical properties in the region 400 nm to 700 nm when exposed to light having a wavelength less than or equal to 500 nm; and (ii) a change in optical properties in the region of 400 nm to 700 nm when exposed to light having a wavelength greater than or equal to the first wavelength.

Abstract: A reactor for producing phosgene, the reactor comprising: tube located in a shell and a space located between the tube and the shell; a cooling medium located in the space and a catalyst located in the tube or cooling medium located in the tube and a catalyst located in the space; a feed inlet; and a product mixture outlet; wherein the tube comprises one or more of: a mini-tube and a second tube section; a first concentric tube concentrically located in the shell; a twisted tube; an internal scaffold; and an external scaffold.

Abstract: The present invention relates to a process for producing alkylated aromatic hydrocarbons such as ethyl benzene or cumene from a mixed hydrocarbon feedstream comprising subjecting C6 cut separated from said mixed hydrocarbon feedstream to hydrocracking to provide benzene and subjecting said benzene to alkylation.

Abstract: A uniaxially-stretched, high yield extruded film comprising a polyetherimide comprising units derived from polymerization of an aromatic dianhydride with a diamine selected from a meta-phenylene diamine, a para-phenylene diamine, and a combination thereof, wherein the polyetherimide is endcapped with an a substituted or unsubstituted aromatic primary monoamine; and wherein the high yield extruded film comprises at least 90 weight % of the polyetherimide before extrusion.

Abstract: The present invention relates to a method for the manufacture of polypropylene having a target melt flow rate of from 10 to 200 g/10 min as determined in accordance with ISO 1133 (230° C., 2.16 kg) comprising the sequential steps of i) polymerizing propylene monomer, and optionally one or more alpha olefin co-monomers so as to form a polypropylene having an initial melt flow rate of from 0.5 to 20 g/10 min (ISO 1133, 230° C., 2.16 kg), ii) visbreaking said polypropylene to obtain polypropylene having said target melt flow rate and wherein the ratio of target to initial melt flow rate is more than 1 iii) maintaining the polypropylene obtained from step ii) at an elevated temperature for a time sufficient to reduce the FOG value of the polypropylene as determined in accordance with VDA 278. The method allows the time for FOG reduction to be reduced as compared to polypropylenes that have the same target melt flow rate, yet which have obtained said melt flow rate without the visbreaking step.

Abstract: An electrically conductive polyamide composition includes specific amounts of a polyamide-6, a poly(phenylene ether), talc, a hydrogenated block copolymer, carbon nanotubes, and a compatibilizing agent for the polyamide-6 and the poly(phenylene ether). The composition can contain little or no polyamide-6,6. The composition is useful for fabricating articles including automotive exterior side sill panels, and automotive exterior door panels.

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 method for manufacturing a hollow overmolded polymeric article comprising: positioning a hollow polymeric structure (10) in a mold (100); supporting the interior surface of the hollow polymeric structure; disposing a fibrous polymeric material (12) into the mold proximal to the outer surface of the hollow polymeric structure; overmolding the fibrous polymeric material onto to the outer surface of the hollow polymeric structure; opening the mold; and removing a hollow overmolded polymeric article comprising the fibrous polymeric material overmolded on the hollow polymeric structure.

Abstract: A process for manufacturing a polycarbonate composition includes melt polymerizing a dihydroxy compound and a carbonate compound in the presence of a catalyst to form a polycarbonate; and adding 1 to 400 ppm of glycerol tristearate to form the polycarbonate composition, wherein the polycarbonate composition is unquenched.

Abstract: Disclosed are methods and systems for converting chloromethane to olefins. A method includes contacting an aluminosilicate catalyst having a chabazite zeolite structure with a feed that includes an alkyl halide and is substantially free of oxygenates under reaction conditions sufficient to produce an olefin hydrocarbon product comprising C2-C4 olefins.

Abstract: A method of providing multiple headlamp configurations sharing a common vehicle-mount interface, the method comprising: selecting one of at least two reflectors, the at least two reflectors sharing a common forward interface and the common vehicle-mount interface at a rearward interface, with each having a different reflector shape; affixing the selected reflector to a rear portion of a bezel shaped to conform to the common forward interface of the at least two reflectors; and affixing one of at least two lamp bezels to a forward interface of the bezel, wherein the at least two lamp bezels share a common rear portion shaped to conform to the common forward interface of the bezel, and are shaped differently at their respective front portions.

Abstract: The present invention is to provide processes, apparatuses, and systems for monitoring and/or controlling caustic concentrations in caustic scrubbers. In various aspects, the processes, apparatuses, and systems comprise a real-time online method for measuring the concentration of caustic in process scrubbers wherein a probe is coupled to a spectrometer; collecting absorption data with wavelength range from about 1000 to about 2000 nm. In a further aspect, this technique tracks the use and recharge of caustic in process scrubbers.

Abstract: The invention relates to a process for the continuous polymerization of one or more a-olefin monomers of which at least one is ethylene or propylene comprising the steps of: (1) feeding the one or more a-olefins to a vertically extended reactor suitable for the continuous fluidized bed polymerization of one or more a-olefin monomers of which at least one is ethylene or propylene, which reactor is operable in condensed mode, wherein the reactor comprises a distribution plate and an integral gas/liquid separator located below the distribution plate, (2) withdrawing the polyolefin from the reactor (3) withdrawing fluids from the top of the reactor, (4) cooling the fluids to below their dew point, resulting in a bottom recycle stream, (5) introducing the bottom recycle stream under the distribution plate, (6) separating at least part of the liquid from the bottom recycle stream using the integral separator to form a liquid phase and a gas/liquid phase, (7) feeding the liquid phase to an external pipe, (8) adding

Abstract: A palm plant treatment method, palm plant treatment layer, palm plant treatment composition and method of making the palm plant treatment composition that relates to a layer comprising an insecticide and a polymeric adhesive present on a palm plant surface that is effective for treating or preventing infestation of the palm plant by a pest without the insecticide entering the vascular system of the palm plant.

Abstract: An apparatus for printing an image onto a curved surface of a three dimensional article. The apparatus principally includes a support fixture, an ink jet print head having a plurality of nozzles, and an articulatable robotic arm. One of the support fixture and the print head are mounted to and carried by the robotic arm. The robotic arm is moveable so as to cause relative movement of the print head along a series of scanning paths that follow the surface contour of the curved surface of the article. A controller is coupled to the robotic arm and is configured to cause articulation of the robotic arm. The controller causes the robotic arm to continuously locate the print head relative to the curved surface and to cause the plurality of nozzles to eject printing medium at predetermined locations along the scanning paths so as to form the image.

Abstract: In various aspects, the invention relates to blended thermoplastic polymer compositions (e.g., polycarbonate or polycarbonate-polysiloxane copolymer compositions) comprising recycled acrylonitrile-butadiene-styrene (ABS) polymer or recycled polystyrene polymer which contain at least one impurity and an acid melt flow stabilizer. The presence of the acid melt flow stabilizer improves the thermal stability of the polymer blend. In various further aspects, blended compositions further comprise a flame retardant. 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: Methods and systems for managing a decomposition process are disclosed. An example method can comprise estimating a coking rate for a process based on a coking model. The coking model can comprise a pyrolytic coking term and a catalytic coking term. An example method can comprise, performing at least a portion of the process, receiving a parameter for the process, and adjusting an operation of the process based on the parameter.