Abstract:
The invention provides an opto-electronic device comprising at least one sulfonated aromatic condensation copolymer or at least one phosphonated aromatic condensation copolymer. The at least one sulfonated aromatic condensation copolymer is selected from sulfonated polyarylethers, sulfonated polyimides, sulfonated polyphenylene oxides, sulfonated polyarylenes, sulfonated polyphosphazenes, and the at least one phosphonated aromatic condensation copolymer is selected from phosphonated polyarylethers, phosphonated polyimides, phosphonated polyphenylene oxides, phosphonated polyarylenes, phosphonated polyphosphazenes and combinations thereof. The sulfonated polyarylether is a sulfonated polyarylether block copolymer having sulfonated polyaryletherketone blocks, sulfonated polyethersulfone blocks, or combinations thereof.
Abstract:
The present invention provides electronic devices comprising novel polymeric organic iridium compositions which provide for enhanced device performance. The polymeric organic iridium compositions employed comprise a polymeric organic iridium compound comprising at least one cyclometallated ligand and at least one ketopyrrole ligand. The polymeric organic iridium compositions employed are referred to as Type (2) organic iridium compositions and are constituted such that at least one ligand of the polymeric organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (2) organic iridium compositions are referred to herein as comprising “polymeric organic iridium complexes”. In one aspect, the present invention provides optoelectronic devices, such as OLED devices and photovoltaic devices. In another aspect, the invention provides OLED devices exhibiting enhanced color properties and light output efficiencies.
Abstract:
Copolymers are disclosed comprising structural units derived from α-methylene-γ-butyrolactone, styrene, methyl methacrylate and acrylonitrile. The copolymers may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat.
Abstract:
The invention relates to compounds of formula I wherein R1, R2, and R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 and R5 are independently at each occurrence hydrogen, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; and a, b and d are independently 0 or an integer ranging from 1 to 3. The invention further relates to polymers derived from compounds of formula I. The polymers may be polyesters, polyethers, polycarbonates, polyestercarbonates, polyetherketones, or polyethersulfones. Compounds and polymers of the invention find use in light emitting devices.
Abstract translation:本发明涉及式I化合物,其中R 1,R 2,R 4和R 4各自独立地为C 1 C 20 -C 20脂肪族基团,C 3 -C 20芳族基团或C 3 H 3 -C 20脂环族基团; R 3和R 5在每次出现时独立地为氢,C 1 -C 20脂族基团, C 3 -C 20芳族基团或C 3 -C 20脂环族基团; C 3 -C 20芳族基团或C 3 -C 20 -C 20脂环族基团; 并且a,b和d独立地为0或1至3的整数。本发明还涉及衍生自式I化合物的聚合物。聚合物可以是聚酯,聚醚,聚碳酸酯,聚酯碳酸酯,聚醚酮或聚醚砜。 本发明的化合物和聚合物可用于发光器件。
Abstract:
The present invention provides electronic devices comprising novel organic iridium compositions which provide for enhanced device performance. The novel iridium compositions employed comprise at least one novel organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The organic iridium compositions employed are referred to as Type (1) organic iridium compositions and are constituted such that no ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (1) organic iridium compositions are referred to herein as comprising “organic iridium complexes”. In one aspect, the present invention provides optoelectronic devices, such as OLED devices and photovoltaic devices. In another aspect, the invention provides OLED devices exhibiting enhanced color properties and light output efficiencies.
Abstract:
Copolyetherimides compositions having high glass transition temperatures and outstanding ductility are presented. The copolyetherimides having Mw of at least 40,000 comprising isomeric bis(phthalimide) structural units within a relatively narrow range of isomer proportions exhibited Tgs of at least 240° C. and outstanding Notched Izod values. The copolyetherimides comprise oxydianiline residues and structural units of the formulas (I) and (II) (III). The copolyetherimides are characterized by a mole percentage of structural units derived from 4,4′-biphenol in a range from about 55% to about 85% of all bisphenol-derived structural units present in the copolyetherimide composition; a mole percentage of structural units derived from bisphenol A in a range from about 45% to about 15% of all bisphenol-derived structural units present in the copolyetherimide composition; and a total mole percentage of structural units derived from bisphenol A or 4,4′-biphenol of at least 95% of all bisphenol-derived structural units present in the copolyetherimide composition.
Abstract:
The invention described herein encompasses methods and compositions of treating cancer or solid tumors comprising the administration of a therapeutically effective amount of catechins, a group of polyphenols found in green tea, to a mammal in need of such therapy. Compositions of catechins include but not limited to, epigallocatechin gallate (EGCg), epicatechin (EC), epicatechin gallate (ECG), epigallocatechin (EGC). The unique compositions of the invention contain various combinations of the catechins with reduced levels of EGCg, alone or in combination with each other or other therapeutic agents and are used to treat primary and metastatic cancers in humans. The invention also encompasses the varying modes of administration of the therapeutic compounds.
Abstract:
A tunable, solid state laser device with both visible and infrared laser emission is developed with a trivalent ytterbium-doped yttrium calcium oxyborate crystal as the host crystal. The Yb:YCOB crystal generates an infrared fundamental light over a wide bandwidth, from approximately 980 nanometers (nm) to approximately 1100 nm. The bandwidth generated by the Yb:YCOB crystal is approximately 100 nm wide and supports the generation of pulsed infrared light or when self-frequency doubled provides a compact, efficient, source of tunable, visible, blue or green laser light in wavelengths of approximately 490 nm to approximately 550 nm.
Abstract:
The present invention discloses a capsule endoscope and a method to prevent the capsule from being covered by a residue or mucous in a patient's digestive tract. The capsule endoscope comprises an improved surface, preventing a residue or mucous to adhere onto the surface of the capsule, and in the unlikely event that a residue or a mucous is collected by the capsule the improved surface can allow an easy and successful clean before an image is taken.
Abstract:
Compounds of formula I may be used in optoelectronic devices wherein R1 and R2 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a is an integer ranging from 0-2; b is 1 or 2; c is an integer ranging from 0-4; and Ar1 and Ar2 are independently heteroaryl.