Abstract:
A method for ring-halogenating an aromatic compound comprises contacting the aromatic compound with chlorine or bromine in the presence of a catalyst composition, where the catalyst composition comprises at least one salt comprising a metal selected from the group consisting of Group 13 metal; and a counterion derived from an acid having a pKa relative to water of 0 or greater, and at least one organic sulfur compound.
Abstract:
Flame retardant polyamide compositions are provided containing a polyamide; a flame retardant system including a metal phosphinate or diphosphinate salt and a nitrogen compound; an aromatic polymer, and optionally untreated nanoclay having an aspect ratio of about 100 to about 1000.
Abstract:
A process for producing phenol, the process comprising contacting with an acidcatalyst a feed stream comprising cumene hydroperoxide, phenol and acetone, to produce a phenol product, wherein the molar ratio of phenol to acetone in the feed stream and in the phenol product is greater than 1:1
Abstract:
A process for producing a purified phenol stream generally includes contacting a phenol stream containing an initial concentration of hydroxyacetone and methylbenzofuran with an acidic ion exchange resin at a temperature of 50°C to 100°C to concurrently reduce the initial concentration of the hydroxyacetone and the methylbenzofuran in the phenol stream to produce the purified phenol stream.
Abstract:
The present invention directed to an organic light emitting device and method for making the same. The method comprises the steps of: forming a first component (21) comprising at least one first material (202) on a first substrate (200); forming a second component (21) comprising at least one second material (208) on a second substrate (206), wherein at least one opening (216) is formed through the second component (22); forming a third component (23); and laminating the first component (21), the second component (22) and the third component (23) together such that the second component (22) is located between the first component (21) and the third component (23), the at least one first material (202) and the at least one second material (208) form at least part of an organic electro-optic device located between the first substrate (200) and the second substrate (206), the third component (23) is bonded to the second component (22), and the third component (23) is bonded to the first component (21) through the at least one opening (216).
Abstract:
A method for manufacturing data storage media comprising irradiating at least a portion of an organic polymer comprising a resorcinol arylate polyester with a UV beam having a wavelength of about 290 to about 700 nanometers so as to impart an energy of about I to about 20 milliwatt/square centimeter to the irradiated portion of the organic polymer.
Abstract:
A technique is provided for manufacturing a multi-anode photomultiplier tube (82) for use in positron emission tomography (PET) detectors (16). One or more optical properties within an entrance window (86) of the multi-anode photomultiplier tube (82) are altered at a focal spot (100) via a laser (94). The focal spot (100) is translated relative to the entrance window (86) for creating a three-dimensional pattern (103) within the entrance window (86). This threedimensional pattern (103) having the one or more optical properties altered is adapted to control the spreading of optical photons (87) within the entrance window (86).
Abstract:
Magnetic resonance ("MR") contrast-enhancing agents comprise poly(amino acid) (10,20) backbone chain conjugated to chelating moieties (33) that comprise a plurality of carboxylic acid groups that form coordination complexes with paramagnetic ions. A method for detecting atherosclerotic plaque areas comprises administering at least one of these contrast agents into a subject; and obtaining and comparing MR images of and MR signals from the plaque areas before and after administering the contrast agent. The method can be used to assess an effectiveness of a prescribed course of treatment for atherosclerosis.
Abstract:
An optical device structure (22) comprising a substrate (10) and at least one topographic feature. The topographic feature comprises a polymeric composite material formed from a polymerizable binder and an uncured monomer. The topographic feature has a controlled topographic profile and a controlled refractive index across the topolografic feature. The optical device structure may be a multimode waveguide device, a single mode waveguide device, an optical data storage device, thermo-optic switches, a lens, or microelectronic mechanical system.
Abstract:
A curable epoxy formulation is provided in the present invention. The formulation comprises an epoxy monomer, an organofunctionalized colloidal silica, cure catalyst, and optional reagents. Further embodiments of the present invention include a method for making the epoxy formulation and a semiconductor package comprising the curable epoxy formulation.