Abstract: A method and catalyst composition for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed. The present invention provides a method for carbonylating aromatic hydroxy compounds, comprising the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a halide-free carbonylation catalyst composition comprising an effective amount of at least one Group 8, 9, or 10 metal source, an effective amount of a first inorganic co-catalyst comprising at least one Group 14 metal source, an effective amount of a salt co-catalyst, and optionally an effective amount of a second inorganic co-catalyst selected from the group consisting of a Group 4 metal source, a Group 7 metal source, a Group 11 metal source, and a lanthanide element source, and optionally an effective amount of a base.

Abstract: The damping performance of an article and a polycarbonate composition is improved and a storage medium for data is provided which comprises the use of at least one ortho-methyl substituted polycarbonate structure.

Abstract: The present invention provides a method and catalyst composition for carbonylating aromatic hydroxy compounds, comprising the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst composition comprising an effective amount of at least one Group 8, 9, or 10 metal source, an effective amount of a combination of inorganic co-catalysts comprising at least one Group 4 metal source and at least one Group 11 metal source, an effective amount of at least one salt co-catalyst with an anion selected from the group consisting of carboxylate, benzoate, acetate, sulfate, and nitrate, wherein the carbonylation catalyst composition is free of a halide source.

Abstract: A method and system are provided that can be used at any stage of a manufacturing process to determine physical properties such as crosslink density. The method and system require little or no sample manipulation. The method and system are independent of rubber particle size and matrix composition. In the method and system, physical properties of a material are determined by NMR measurement. A T1 (spin lattice relaxation time) is measured for a material, a T2 (spin-spin relaxation time) is measured for the material and a value T1/T2 is calculated that is representative of a physical property of material.

Abstract: There is provided a halophosphate phosphor having the formula (Ca, Mg, Ba, Sr, Zn)5(PO4)3(F, Cl, Br): Sb3+, Mn2+ doped with at least one rare earth ion which has a higher charge carrier capture cross section than the phosphor lattice defects. The rare earth ion preferentially traps charge carriers and thus decreases the density of color centers. The rare earth ions are preferably trivalent ions selected from Eu3+, Sm3+, Yb3+, Tm3+, Ce3+, Tb3+ and Pr3+.

Abstract: A headspace sampling system monitors materials in wastewater. The headspace sampling system comprises a sample receptacle that can contain a wastewater sample; a sparger chamber vapor column; a sample receptacle cover assembly that connects the sparger chamber vapor column to the sample receptacle; a sparger tube; at least one sensing device; and at least one analytic device. The sparger tube and the sample receptacle define a headspace. The sparger chamber vapor column is in communication with the sample receptacle and is closed by a sparger chamber vapor column cover at a second end that is opposed to the sample receptacle. The sparger tube extends into the sample receptacle and the wastewater sample in the sample receptacle. The sparger tube is connected to a source of inert gas at a first end opposed to the sample receptacle and comprises a dispersion device at an end opposed to the first end. The sensing device is disposed in the headspace sampling system in the headspace.

Abstract: An apparatus for cathodic arc coating. The apparatus includes: a vacuum chamber which includes: an anode; a power supply; and a cathode target assembly connected to the power supply. The cathode target assembly includes a cathode target having an interference fit stud with a threadless distal end. In the preferred embodiment, the distal end of the threadless cathode target also includes a pre-determined surface texture and a cooling block in contact with the cathode target.

Abstract: A method is provided for making emulsion polymerized silicone rubber having an average particle size of from about 400 nm to 2 microns and grafts thereof. Thermoplastic blends having improved weatherability and impact strength are also provided based on the use of a thermoplastic organic polymer and a graft of such emulsion polymerized silicone rubber as an impact modifier.

Abstract: Copolyestercarbonates comprising carbonate structural units derived from at least one dihydroxyaromatic compound, preferably bisphenol A, and ester units derived from a dihydroxyaromatic compound and a composition comprising at least one C36 dimer acid may be prepared by an interfacial phosgenation method conducted at a pH in the range of about 9-11. The copolyestercarbonates have properties which are often superior to those of corresponding polymers prepared, for example, from dodecanedioic acid.

Abstract: The present invention provides resin compositions comprising a thermoplastic resin, at least one phosphoramide having a glass transition point of at least about 0° C. preferably of at least about 10° C., and most preferably of at least about 20° C.; and at least one adjunct flame retardant. The present invention also relates to articles made from the resin compositions. The present invention also provides methods to make the resin compositions having improved heat properties over compositions known in the art.

Abstract: A method for depositing adherent metal oxide-based protective coatings on glass, metal, and plastic substrates by arc plasma deposition.

Abstract: Polycarbonate copolymers have been prepared by solid state polymerization (SSP). A mixture comprising partially crystalline BPA polycarbonate oligomer having a weight average molecular weight of 10,000 daltons and a source of additional structural units and optionally a catalyst is reacted under SSP conditions to afford a copolycarbonate. Sources of additional structural units include high and low molecular weight polycarbonates incorporating repeat units not derived from BPA and various bisphenols such as BPI, BPM and tetramethyl BPA.

Abstract: The present invention relates to absorbent devices such as sanitary napkins, pantiliners, interlabial devices, and incontinence devices. In a preferred embodiment, the present invention relates to an improved absorbent device that is insertable into the interlabial space of a female wearer for catamenial purposes (including menses and mid-cycle discharges), incontinence protection (including urine), or both. The absorbent interlabial device has at least on body-contacting surface and a backsheet having an integral protrusion formed therein of sufficient dimensions to aid in insertion into the interlabial space. An apparatus for forming the integral protrusion in the backsheet is disclosed. The apparatus comprises a female forming member having an opening therein, and a compression member having and opening therethough in operative aligned relationship with the opening of the female forming member.

Abstract: A ceramic casting shell mold having a pre-selected shape is described. It includes alternate, repeating layers of a ceramic coating material and a ceramic stucco, defining a total thickness of the shell mold; and a ceramic-based mat of reinforcing material disposed in the alternate, repeating layers of coating material and stucco. The reinforcing material for the mat is usually made from a ceramic material, and includes fibers having a bi-directional orientation. A method for making a ceramic casting shell mold is also described, as well as articles cast from such a mold, e.g., superalloy articles.

Abstract: A refractory metal intermetallic composition comprising titanium (Ti), hafnium (Hf), silicon (Si), aluminum (Al), chromium (Cr), germanium (Ge), tin (Sn), iron (Fe), and a balance of niobium (Nb) for use in composite structures having applications in turbine components.

Abstract: An improved X-ray tube target comprises a refractory metal target substrate and a refractory metal focal track applied to the target substrate by a tape casting process. The X-ray tube target comprises a refractory metal target substrate and a refractory metal focal track formed on the target substrate to form a focal track/target substrate interface plane that varies less than about ±0.13 mm.

Abstract: A lamp comprises a light emitting element such as a light emitting diode or a laser diode which emits blue light, and a phosphor composition which absorbs the blue light having a first spectrum from the light emitting element and emits light having a second spectrum. The phosphor composition comprises at least one of Ba2MgSi2O7:Eu2+; Ba2SiO4:Eu2+; and (Sr,Ca,Ba)(Al,Ga)2S4:Eu2+. The invention also relates to a light emitting element which emits blue light, and a phosphor composition which absorbs the blue light from the light emitting element having a first spectrum and emits light having a second spectrum, wherein the spectral luminous efficacy of light emitted by the lamp is at least 550 lumens per watt. The high spectral luminous efficacy of the output spectrum efficiently converts the power input to the lamp into lumens to provide a high brightness. For example the device luminous efficacy of the lamp can be 35-45 lumens output per watt of input electric power or more.

Abstract: A casting system with auxiliary cooling onto a liquidus portion of the casting can produce a metal casting that comprises a fine-grain, homogeneous microstructure. The microstructure is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the metal from a liquidus state to a solid state. The casting system with auxiliary cooling onto a liquidus portion of the casting can comprises an electroslag refining system as a source of liquid metal; a nucleated casting system; and at least one cooling system that supplies coolant onto a liquidus portion of the casting. The liquidus portion of the casting is cooled in a manner sufficient to provide a casting microstructure that comprises a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification from a liquidus state to a solid state.

Abstract: A proportion of Cu3Si in a contact mass is determined by treating the mass with an inorganic ammonium salt, which selectively dissolves all forms of copper including free copper in deference to Cu3Si, which is not dissolved. An initial copper content of the contact mass is determined, the contact mass is treated with an inorganic ammonium salt composition to extract copper in a molecular form other than Cu3Si and extracted copper is subtracted from the initial copper content.

Abstract: A method for forming a breathable film material. A film which is a blend of a thermoplastic polymer and an inorganic filler is fed between a first roll and a second roll. The first roll has a plurality of toothed regions spaced apart by a plurality of grooved regions. The toothed regions include a plurality of teeth. The second roll has a plurality of teeth which mesh with the teeth on the first roll. As the film is fed between the first roll and the second roll the portion of the film passing between the grooved regions on the first roll and the teeth on the second roll remains substantially planar forming first regions in the film while the portion of the film passing between the teeth on the first roll and the teeth on the second roll are formed into second regions having raised rib-like elements.