Abstract: A phosphate ester compound can include a cation and an anion, the anion being an alkyl phosphate. The phosphate ester compound can be a phosphate ester ionic liquid. The phosphate ester compound can be manufactured in a solvent-free environment. The phosphate ester compound can be used as an electrolyte in a battery, for example, a lithium-ion battery.

Abstract: The present invention relates to a new family of luminescent pigments consisting of a salt of two ruthenium(II) complex ions of opposite sign charges comprising N-chelating heterocyclic ligands and to their use in security applications to prevent counterfeiting. The invention also refers to ink compositions and to the security documents or secured goods comprising said luminescent pigments.

Abstract: Disclosed are an organic electroluminescent device (organic EL device) that is improved in luminous efficiency and fully assured of driving stability and has a simple structure and an organic metal complex suitable therefor. The organic metal complex is represented by the following general formula (I) wherein Ar1 denotes an aromatic hydrocarbon group or a heteroaromatic group and may have substituents, Ar2 and Ar3 respectively denote an aromatic hydrocarbon group or a heteroaromatic group and may have substituents, M denotes a trivalent metal, and L denotes an arylate ligand containing a hetero ring having at least one nitrogen atom capable of coordinating M. This organic metal complex, along with a phosphorescent dopant, is suitable for a material constituting the light-emitting layer of an organic EL device.

Abstract: A white-light emitting device and its preparation method are provided. The white-light emitting device comprises an ultraviolet (UV) light emitting diode (LED) chip, a first phosphor, and a second phosphor, wherein the UV LED chip generates a first radiation; the first phosphor is composed of Zn(C3N2H4)2 powder and is excited by the first radiation to generate a second radiation; and the second phosphor is excited by the first radiation and/or the second radiation to generate a third radiation. The third radiation is then mixed with the first radiation and/or the second radiation to generate a white light.

Abstract: An organic electroluminescent device comprising a pair of electrodes and a light emitting layer, a hole transport layer containing a hole transporting material, and an electron transport layer provided between the pair of electrodes wherein, the light emitting layer contains at least two host materials and at least one red phosphorescent material, and the hole transporting material in the hole transport layer has a small ionization potential than the two host materials in the light emitting layer.

Abstract: The invention relates to a composition for the detection of traces of human or animal blood. The aforementioned composition comprises a luminol compound, an oxidizing agent and a base which are diluted in a preferably aqueous solvent. Said composition is characterized in that: the luminol compound is present in a quantity providing a concentration of between 1 and 20 mmoles/l in the end composition, the oxidizing agent is hydrogen peroxide which is present at a concentration of between 25 and 100 mmoles/l in the end composition, the base is soda, NaOH, which is present at a concentration of between 25 mmoles/l and 500 mmoles/l in the end composition. The invention also relates a kit and a method for preparing said composition. Furthermore, the invention relates to a method of detecting and locating traces of human or animal blood.

Abstract: The invention relates to adhesive masses containing at least one electroluminescent additive, single and double-sided adhesive strips which are provided with adhesive masses of said type, and to the use of said adhesive masses for sticking together electronic components.

Abstract: Disclosed are electroluminescent devices that comprise organic layers that contain certain 2H-benzotriazole compounds. The 2H-benzotriazole compounds of blue-emitting, durable, organo-electroluminescent layers. The electroluminescent devices may be employed for full color display panels in for example mobile phones, televisions and personal computer screens.

Abstract: The invention relates to a fluorescent pigment comprising a) a melamine-formaldehyde polycondensation product, b) a distyryl biphenyl fluorescent whitening agent (FWA) of the formula (1), in which R1 represents hydrogen, chlorine or C1-C4alkoxy and M represents hydrogen, an alkaline or alkaline earth metal, ammonium or ammonium that is mono-, di-, tri- or tetrasubstituted by C1-C4alkyl or C2-C4hydroxyalkyl and, optionally, c) at least one additional fluorescent whitening agent, a process for its preparation and use thereof for the fluorescent whitening of paper, especially in coating.

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 relates to fluorescent diketopyrrolopyrrole analogues of the general formula (I), wherein A1 and A2 are C1–C18alkyl, C2–C18alkenyl, C2–C18alkynyl, C5–C8cycloalkyl, C5–C8cycloalkenyl, aryl or heteroaryl, A3 and A4 are independently of each other C1–C18alkyl, Ar3, —CR30R31—(CH2)m—Ar3, or Y—R32, wherein R30 and R31 independently of each other stand for hydrogen or C1–C4alkyl, or phenyl which can be substituted up to three times with C1–C3alkyl, Ar3 stands for aryl, in particular phenyl or 1- or 2-naphthyl, C5–C8cycloalkyl, in particular cyclohexyl, or heteroaryl, which can be substituted one to three times with C1–C8alkyl, C1–C8alkoxy, halogen or phenyl, which can be substituted with C1–C8alkyl or C1–C8alkoxy one to three times, and m stands for 0, 1, 2, 3 or 4, Y is C(O)— or SO2— and R32 is C1–C18alkyl, Ar3, or aralkyl and A3 can additionally be hydrogen, C1–C8alkyloxycarbonyl, such as tertbutoxycarbonyl, or aralkyloxycarbonyl, such as benzyloxycarbonyl, a process for their preparation and

Abstract: Optical brighteners (PAB) of formula 1

Abstract: In an organic EL device comprising a cathode, an anode, and two or more stacked organic layers therebetween including a light emitting layer, an electron injecting organic layer containing an organic salt or complex of a metal having a standard electrode potential of more negative than −1.8 V at 25° C. is formed close to the cathode by coating, and an organic layer containing a high molecular weight EL material is disposed close to the electron injecting organic layer. A multilayer structure of organic layers can be formed by coating, and the organic EL device has a high luminance, high efficiency, high reliability, long life and ease of handling.

Abstract: Described is a process for preparing concentrated solutions or suspensions of anionic organic compounds which comprises a) acidifying an aqueous solution or suspension of an anionic organic compound containing salts and/or impurities to a pH of 4.5 or less, if the pH is above this value, so that b) the anionic organic compound is water-insoluble and precipitates in the form of the free acid, c) bringing the suspension to a salt content below 2% by weight, based on the total weight of the retentate, by means of ultrafiltration with a membrane having pore diameters of from 0.001 to 0.02 &mgr;m, and d) optionally washing out the salts with water having a pH below 4,5, e) optionally carrying out acid-free washing with water thereafter, and then f) concentrating, so that the amount of anionic organic compound is 5-50% by weight, and g) if desired, bringing the anionic organic compound into solution by adding an appropriate base.

Abstract: Disclosed is a material for a light emitting device excellent in color purity, good in light emitting characteristics and excellent in stability, which consists of a compound represented by the following general formula (I): L&Parenopenst;A)m  (I) wherein A represents a heterocyclic group in which two or more aromatic heterocycles are condensed; m represents an integer of 2 or more, and the heterocyclic groups represented by A may be the same or different; and L represents a connecting group.

Abstract: Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest chromophore in-situ from the pigment precursor, and, subsequently, isolating the mixture of the host and guest chromophores, thereby forming a solid solution, or (2) mixing a polymer as a matrix or a polymer precursor and a pigment precursor in a solvent, if desired in the presence of a chromophore being a host component, then generating a pigment in-situ from the pigment precursor (being the guest component if a host component is present), and, subsequently, isolating the mixture of polymer and pigment, and—if present—the host component, thereby forming a solid solution, wherein in all cases where there is a host component, the absorption spectrum of the pigment (guest chromophore) overlaps with the fluorescence emission spectrum of the host chromophore.