Abstract: The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.

Abstract: Disclosed is a dispersant having a multifunctional head, and a phosphor paste composition comprising the dispersant. The dispersant has a multifunctional head that comprises an acidic group, a basic group and an aromatic group, thereby enhancing an affinity for the surface of phosphor particles and improving dispersibility.

Abstract: The presently described subject matter is directed to water-soluble conjugated polyene compounds that exhibit aggregation induced emission, as well as to water dispersible, fluorescent, polymeric microparticles and/or nanoparticles comprising the water-soluble conjugated polyene compounds. Also provided are methods of making and using the compounds and particles. The described conjugated polyene compounds are useful as bioprobes for the detection biomacromolecules, as well as in the manufacture of sensors.

Abstract: An aerosol formulation including semiconductor nanocrystal compositions. A method for making water based and lacquer based aerosol formulations is also provided. These formulations can be loaded into standard aerosol paint cans and can be sprayed onto a surface. This sprayed paint will fluoresce at the wavelength(s) characteristic of the nanocrystal composition incorporated therein upon illumination with a shorter wavelength source.

Abstract: To obtain a photoluminescent pigment and a photoluminescent coating material which have no particle feeling and exhibit a highly excellent silky feeling. A dispersion liquid of a photoluminescent pigment in an aqueous medium, characterized in that the photoluminescent pigment is flaky titanic acid obtained by treating layered titanate with acid and then reacting an organic basic compound with the treated layered titanate to delaminate, and the flaky titanic acid has an average longer diameter of 5 to 30 ?m and an average thickness of 0.5 to 300 nm.

Abstract: Osmium complexes having the formula [Os(II) (N—N)2L—L]2+ 2A? (or A2?), or [Os(II) N—N(L—L)2]2+ 2A? (or A2?), where N—N is a bipyridine or phenanthroline ligand, L—L is a ?-acid bidentate ligand, and A is counter ion.

Abstract: A polymer matrix comprising active chromophoric groups and aromatic compounds selected from phenyls substituted with one or more substituents independently selected from: (i) halogens; (ii) C1-4alkyl esters of carboxylic acid or their amides; (iii) —OR, —SR or —C(?O)R, R being an C1-6alkyl group; (iv) the group —O—(CH2)n—O—C(?O)C(X)?CH2 where X is CH3 or H and n is independently 1-6; or (v) the group —O—C(?O)C(X)?CH2. There is further provided a 3-dimensional optical data storage comprising a photochromic medium, where such a combination facilitates the writing of data in the 3-dimensional optical data storage.

Abstract: Disclosed are photoluminescent formulations, comprising an effective amount of photoluminescent phosphorescent materials, which exhibit high luminous intensity and persistence. Also disclosed are photoluminescent objects formed by applying at least one photoluminescent layer, formed from photoluminescent formulations, to preformed articles. Further disclosed are methods for creating photoluminescent objects.

Abstract: Certain poly(oxyalkylene) colorants are disclosed along with method of preparation thereof. A method of using these colorants as fluorescent security taggants is also disclosed.

Abstract: Method for making multifunctional particles. The method includes flowing a first monomer stream loaded with a fluorescent entity along a microfluidic channel and flowing a second monomer stream loaded with a probe adjacent to the first monomer stream along the microfluidic channel. The monomer streams are polymerized to synthesize particles having a fluorescent, graphically encoded region and a probe-loaded region.

Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.

Abstract: A material for organic electroluminescent elements which comprises a copolymer comprising; units each comprising a main chain having a trivalent unconjugated organic residue and a monovalent organic residue bonded to the main chain through a structure comprising two or more groups conjugately bonded to each other; and units each having an amino group.

Abstract: An electrophoretic dispersion liquid for an electrophoretic display apparatus includes a plurality of electrophoretic particles each surface of which is modified by one of a basic group and an acidic group, a liquid for holding said electrophoretic particles to be dispersed therein; and a polydiene, having the other group, dissolved in said liquid.

Abstract: Compositions comprising at least one phosphorescent organometallic compound and a polymer comprising structural units of formula II are useful in organic light emitting devices 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; wherein R3 and R5 are independently selected from the group consisting of hydrogen, triphenylsilyl, t-butyl, mesityl, diphenyl phosphine oxide, and diphenyl phosphine sulfide; and a, b and d are independently 0 or an integer ranging from 1 to 3.

Abstract: A method for producing fluorescent markings on a substrate which method comprises exposing a composition comprising a polymer and an organic pigment to a heat source, such as laser radiation, to produce a fluorescent markings which are not discernable when viewed under ambient visible light but readily apparent under UV light is disclosed. The method produces novel compositions wherein a fluorescent form of a pigment is present at a higher concentration in defined domains relative to the remainder of the composition. The novel polymer composition is particularly useful in security marking applications.

Abstract: An organic electroluminescent material-containing solution contains an organic electroluminescent material and a solvent. The organic electroluminescent material contains a host and a dopant. The host includes: an organic electroluminescence-functional portion formed of a low-molecular organic electroluminescent material; and a soluble portion bonded to the organic electroluminescence-functional portion so as to solubilize the low-molecular organic electroluminescent material in the solvent. The soluble portion is a molecular chain formed by polymerizing basic units and the host is an oligomer.

Abstract: Compositions are provided including aqueous dispersions of at least one polyaniline and at least one colloid-forming polymeric. New compositions are useful in electronically conductive and semi-conductive layers in electronic devices and other applications. Also provided are methods of making the compositions.

Abstract: Disclosed is a phase change ink containing a fluorescent colorant that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process for authenticating a color document using the disclosed phase change ink.

Abstract: A novel soluble compound which is a distyrylarylene derivative having a soluble substituent and a specific central group and having a solubility of 0.5% by weight or greater at 20° C. in an organic solvent; and an organic electroluminescence device having an organic thin film layer which has a single layer or a plurality of layers, is disposed between a cathode and an anode and has at least one layer containing the novel soluble compound. The organic thin film layer can be formed in accordance with a wet process, and the organic electroluminescence device exhibiting a great efficiency of light emission can be produced easily.

Abstract: Novel fluorescent polyhedral oligomeric silsesquioxane (POSS) colorants are provided. The colorants are strongly fluorescing and long lasting with excellent light stability. The novel colorants can be prepared from chromophores found in common pigments and provide a simple way to convert an insoluble pigment into a soluble fluorescent colorant.

Abstract: The present invention provides compositions comprising at least one novel polymeric organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The polymeric organic iridium compositions of the present invention are referred to as Type (2) organic iridium compositions and are constituted such that at least one 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 (2) organic iridium compositions are referred to herein as comprising “polymeric organic iridium complexes”. The novel organic iridium compositions are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel organic iridium compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies.

Abstract: The present invention provides novel polymer compositions comprising a polymeric component and a novel organic iridium compound comprising at least one cyclometallated ligand and at least one ketopyrrole ligand. The organic iridium compounds used in the polymer compositions 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 polymeric component may be an electroactive polymer. The novel polymer compositions of the invention are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel polymer compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies.

Abstract: Phosphor particles having coatings comprising certain light emitting small molecules and light-emitting devices employing these phosphor particles and light-emitting small molecules are provided. Also provided are light-emitting devices employing a layer of phosphor material that is covered by at least one layer that contains light-emitting small molecules, and methods of making same.

Abstract: The present invention relates to an organic electroluminescent device with a light-emitting layer, the light-emitting layer comprising a photo-crosslinkable conductive polymeric host material suitable for facilitating full-color display by spin coating; and at least one small-molecule light-emitting material to achieve high power efficiency. The color-purity of device of the present invention is independent of the distribution of molecular weight of the polymer in the light-emitting layer.

Abstract: The present invention relates to a closure which is made of synthetic material with characteristics similar to or even better than those of cork and which can therefore be used in all applications in which a cork closure is normally used. In particular, the closure according to the present invention is a stopper for containers for wine or liquors. In particular, the present invention relates to a container closure made of an expanded elastomer by means of a thermal moulding method, characterized in that the expanded elastomer can be produced by means of a step of expansion by a supercritical fluid.

Abstract: A compound of Formula (I) wherein X is hydrogen or a radical of Formula (II), R1 independently at each occurrence is a C1–C20 aliphatic radical, a C3–C10 cycloaliphatic radical, or a C3–C10 aromatic radical; R2, R3, R4 and R5 are independently at each occurrence a halogen, a nitro group, a cyano group, a hydroxy group, a C1–C20 aliphatic radical, a C3–C20 cycloaliphatic radical, or a C6–C20 aromatic radical; and “n”, “q”, and “p” are each independently integers having a value of 0 to 3, and “m” is an integer having a value of 0 to 4.

Abstract: The use of optical brighteners of the formula (II): in which Y denotes a radical of the formula and the other substituents have the meaning stated in the description, for brightening aqueous coating slips comprising at least one latex binder and at least one synthetic co-binder differing therefrom.

Abstract: A polymeric fluorescent substance exhibiting visible fluorescence in the solid state, having polystyrene reduced number average molecular weight of 1×103 to 1×108, and comprising one or more repeating units of following formula (1), wherein Ar1 and Ar2 each independently represent an arylene group or the like; Ar3 represents an aryl group or the like having one or more substituents of formula (2) as nuclear substitution; X represents —CR1?CR2— or —C?C—; and n is 0 or 1, —Y—Ar4 ??(2) wherein Ar4 represents an aryl group or the like; and Y represents —CR3?CR4— or —C?C—. The triarylamine type polymeric fluorescent substance is excellent in quantum yield of fluorescence and in light emitting efficiency when made into a device.

Abstract: Provided is a polymeric fluorescent substance comprising a copolymer which has a substituent containing a specific aromatic amine structure below in the side chain, wherein X1 is a divalent hydrocarbon group; Ar2 is an arylene group or the like; Ar3 and Ar4 independently represent an aryl group or the like. The polymeric fluorescent substance is preferably used for a light emitting layer of a polymer LED having high luminance and high light emitting efficiency.

Abstract: Provided are a light emitting layer including molten salt and an organic electroluminescent device comprising the light emitting layer. When the organic electroluminescent device is operated, a field induction charge separation layer is formed in the light emitting layer including the molten salt and thus, carrier injection is improved, thereby providing a light emitting layer having improved light emitting efficiency. An organic electroluminescent device including the light emitting layer has low operating voltage and long lifespan.

Abstract: An organic polymeric phosphorescent compound and an organic light-emitting device employing the organic polymeric phosphorescent compound. The phosphorescent compound is a neutral organic polymeric phosphorescent compound emitting phosphorescence and used in an organic light-emitting device, and includes a phosphorescent unit and a carrier transporting unit.

Abstract: Light emitting polymers can include a plurality of arylene monomeric units and a plurality of soft segment units independently selected from soft segment end caps; soft segment side chains coupled to a portion, but not all, of the arylene monomeric units; internal soft segment monomeric units; and combinations thereof. These light emitting polymers can be used in forming electroluminescent devices or other articles.

Abstract: There is provided herein cross-linked, phosphorescent micro- and nano-particles and applications of those particles. The invention uses halogen-containing polymers and co-polymers (HCPs) as an encapsulation matrix for organic and organometallic phosphorescent compounds to form micro- or nano-particles. The phosphorescence of these encapsulated phosphorescent particles is substantially unaffected by phosphorescence quenchers such as oxygen and water molecules at ambient conditions. The invention provides methods of making cross-linked phosphorescent particles. HCPs may be directly cross-linked through linking moieties that are a part of the polymer, or cross-linked through other separate bridging or cross-linking materials Cross-linked particles are more stable than the non-cross-linked counterparts and more resistant to temperature, surfactants, and organic solvents.

Abstract: Disclosed are highly efficient multiphoton absorbing compounds and methods of their use. The compounds generally include a bridge of pi-conjugated bonds connecting electron donating groups or electron accepting groups. The bridge may be substituted with a variety of substituents as well. Solubility, lipophilicity, absorption maxima and other characteristics of the compounds may be tailored by changing the electron donating groups or electron accepting groups, the substituents attached to or the length of the pi-conjugated bridge. Numerous photophysical and photochemical methods are enabled by converting these compounds to electronically excited states upon simultaneous absorption of at least two photons of radiation. The compounds have large two-photon or higher-order absorptivities such that upon absorption, one or more Lewis acidic species, Lewis basic species, radical species or ionic species are formed.

Abstract: An organic electroluminescence material of the present invention includes, in order to provide an durable organic EL device emitting light of high brightness, a compound shown by the general formula (A-I) or (B-I) (as explained in the specification) wherein, A1 to A3 which may be the same or different, are independently each a substituent shown by the general formula (A-II) (as explained in the specification): and a1, b1, and b2 are independently each an aryl group which may be substituted, a1 having at least one substituent shown by the general formula (B-II) (as explained in the specification), and b1 and b2 each having at least one substituent shown by the general formula (B-III) (as explained in the specification), and b1 and b2 may be the same of different.

Abstract: Compounds, compositions, organic electronic devices, and methods for preparing organic electronic devices are described. The compounds of the invention contain at least two carbon-carbon triple bonds and a heteroaromatic ring having at least one —C?N— unit. The compounds can be used as electron transport agents in organic electronic devices such as organic electroluminescent devices.

Abstract: Fluorescent pigment compounds comprising aryl-ureido benzoxazinone compounds of the general formula (I): wherein R1 is an substituted or unsubstituted aryl group, R2 and R3 are each independently selected from an H atom, an alkyl group, an alkoxy group, an alkylcarboxy group and a halogen atom, X is a carbon or sulfur atom and n is an integer of 1 or more. Many of the compounds of this class produce a yellow, generally deep yellow, emission at wavelengths of about 560 to about 585 nm when excited by an appropriate UV source. These compounds produce fluorescence making them useful as fluorescent pigments, those compounds providing emission wavelengths within the range of from about 560 to about 585 or higher when excited by a UV source are particularly useful. Those compounds having this emission spectra for the compounds makes these compounds particularly useful as pigments in security applications, particularly as pigments for use in security inks and fibers.

Abstract: A polymer characterized by comprising repeating units represented by the following formula (1) and having a number-average molecular weight, in terms of polystyrene, of 103 to 108. (In the formula, R1 represents hydrogen, alkyl, alkoxy, alkylthio, aryl, aryloxy, arylthio, arylalkyl, arylalkoxy, arylalkylthio, arylalkenyl, arylalkynyl, amino, substituted amino, silyl, substituted silyl, silyloxy, substituted silyloxy, monovalent heterocyclic group, or halogeno; and rings D and E each represents an optionally substituted aromatic ring.

Abstract: Composition comprising a fluorescent material comprising the mixture of one or more metal salts selected from the group consisting of metal oxides and metal hydroxides; one or more carbohydrate(s) selected from the group consisting of sugar and starch; and one or more organic acid(s), method of preparation comprising mixing the components in the presence of water and then drying, and use of the fluorescent material in paper, plastic, polymer, resin, and paint. The resultant papers, plastics, polymers, resins, and paint have whiteness and brightness due to the fluorescence.

Abstract: The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.

Abstract: An electroluminescent polymer which has repeating units represented by formula (1) is obtained by polymerizing a bisfluorenylsilane compound which has specified substituent groups. In spite of the fact that this electroluminescent polymer is a ?-? conjugated type fluorene polymer, the deterioration in the color purity of EL caused by excimer formation is suppressed, so that the color purity of blue emitted light in particular is extremely high. This electroluminescent polymer is extremely useful as a light-emitting material in organic electroluminescent elements.

Abstract: Generally, and in one form, the present invention is a composition of light-emitting block copolymer. In another form, the present invention is a process producing a light-emitting block copolymers that intends polymerizing a first di(halo-methyl) aromatic monomer compound in the presence of an anionic initiator and a base to form a polymer and contacting a second di(halo-methyl) aromatic monomer compound with the polymer to form a homopolymer or block copolymer wherein the block copolymer is a diblock, triblock, or star polymer. In yet another form, the present invention is an electroluminescent device comprising a light-emitting block copolymer, wherein the electroluminescent device is to be used in the manufacturing of optical and electrical devices.

Abstract: An optically detectable security marker for emitting light at a pre-selected wavelength. The marker comprises a rare earth dopant and a carrier incorporating the rare earth dopant. The interaction of the carrier and the dopant is such that the fluorescent fingerprint of the marker is different from that of the rare earth dopant. The marker may be incorporated into a plurality of items, such as fluids, for example paint, fuel or ink, and laminar products such as paper or banknotes or credit cards.

Abstract: A light emitting device includes: (a) a light emitting layer including an electroluminescent organic material dispersed in a matrix, wherein the matrix contains a non-electroluminescent organic polymer having a Tg of at least 170° C., and each of the organic polymer and the electroluminescent organic material constitutes at least 20 percent by weight of the light emitting layer; and (b) electrodes in electrical communication with the light emitting layer and configured to conduct an electric charge through the light emitting layer such that the light emitting layer emits light. A method for manufacturing a flexible organic light emitting device, includes providing the light emitting layer and providing electrodes above and below the light emitting layer, wherein the electrodes are in electrical communication with the light emitting layer.

Abstract: There is provided a polymer compound in which a metal complex is bonded to a main chain of a polymer via a substituent for imparting a given distance therebetween. Specifically, a polymer compound is provided which has a partial structure represented by the general formula (1): It is thus rendered possible to improve the yield of synthesis of the polymer compound and to introduce a desired metal complex in a predetermined amount into the polymer compound. It is thus made possible to realize a white-light emitting material or a light emission of a desired color.

Abstract: The invention relates to an ink composition containing (a) a compound of formula (I), Lm?Ln3+(Ch?)n (I), wherein Ln represents a lanthanide, CH? is a negatively charged ligand containing at least one UV absorbing double bond, n denotes 3 or 4, m denotes a number from 1 to 4, in case n is 3, m denotes a number from 1 to 4 and L is a neutral monodentate or polydentate nitrogen-, oxygen- or sulfur-containing UV absorbing ligand with the exception of 2,2?-bipyridyl or, in case n is 4, m denotes 1 and L is a single-charged cation; and (b) a liquid ink carrier, which can be used for applying hidden mark on objects which can only be revealed under UV exposure.

Abstract: A polymeric fluorescent substance has a prolonged service life and high luminescence brightness. The substance also has excellent thermal stability and good practicality. The polymeric fluorescent substance is adapted for emission of visible fluorescence in a solid state, and includes at least one type of repeating units represented by a specified chemical formula (1). In addition, the substance has a number average molecular weight of 103 to 108 as determined using polystyrene as a standard. A process for producing the polymeric fluorescent substance, and an organic EL element using the polymeric fluorescent substance are also provided.

Abstract: A compound for use in organic EL devices comprising Xn—Y wherein X is a compound of the formula and Y is a linking group and R1 to R8 and a to d are hydrogen, an alkyl group, an aryl group which may be substituted, an allyl group which may be substituted, a heterocyclic group which may be substituted, an amino group, or an arylamino group which may be substituted.

Abstract: The present invention relates to fluorescent diketopyrrolopyrroles (“DPPs”) of the formula characterized in that that at least two adjacent substituents R5 to R11 form an aromatic or aliphatic fused ring system, or at least one substituent R5 to R11 is cycloalkyl, aralkyl, alkenyl, cycloalkenyl, alkynyl, a hydroxyl group, a mercapto group, alkylthio, an aryl thioether group, a heterocyclic group, halogen, haloalkyl, haloalkenyl, haloalkynyl, a cyano group, an aldehyde group, a carbonyl group, a carboxyl group, an ester group, a carbamoyl group, a nitro group, a silyl group, a siloxanyl group, a substituted or unsubstituted vinyl, arylamino or diarylamino group; a process for their preparation and their use for the preparation of inks, colorants, pigmented plastics for coatings, non-impact-printing material, color filters, cosmetics, or for the preparation of polymeric ink particles, toners, dye lasers and electroluminescent devices.

Abstract: The present invention is generally directed to a polymeric metal complex comprising a polymeric material having a plurality of a first-type functional groups, wherein at least a portion of the functional groups are coordinated to at least one metal containing complex, polymeric-metal complex salts comprising at least one polymeric material having a plurality of first-type functional groups having a charge, and at least one metal complex having an opposite charge. It further relates to devices that are made with the polymeric metal complex or the polymeric-metal complex salt.